Acromag Intellipack 895m series User manual

IntelliPack Series 895M/896M

Frequency Output Transmitters With

Process Current/Voltage Inputs

USER’S MANUAL

ACROMAG INCORPORATED

30765 South Wixom Road

Wixom, MI 48393-2417 U.S.A.

Tel: (248) 624-1541

Fax: (248) 624-9234

Email: sales@acromag.com

Web: http://www.acromag.com

Data and specifications are subject to change without notice.

8500606F

IntelliPack Series 895M/896M Frequency Transmitter User’s Manual DC Voltage/Current Input

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Safety Summary – Symbols on equipment:

Means “Caution, refer to this manual for additional

information”.

The information contained in this manual is subject to change

without notice. Acromag, Inc., makes no warranty of any kind

with regard to this material, including, but not limited to, the

implied warranties of merchantability and fitness for a particular

purpose. Further, Acromag, Inc., assumes no responsibility for

any errors that may appear in this manual and makes no

commitment to update, or keep current, the information contained

in this manual. No part of this manual may be copied or

reproduced in any form, without the prior written consent of

Acromag, Inc.

Table of Contents

Page

1.0

INTRODUCTION

………………………………..…….. 2

DESCRIPTION ………………………………………… 2

Key IntelliPack 895M/896M Features……………… 3

ACCESSORY ITEMS …………………………………. 4

IntelliPack Configuration Software ………………… 4

IntelliPack Serial Port Adapter …………………….. 4

IntelliPack Cable………………………….………….. 4

IntelliPack Software Interface Package…..……….. 4

2.0

PREPARATION FOR USE

….……………………….. 4

UNPACKING AND INSPECTION ……………………

INSTALLATION ……………………………………….. 5

Jumper Installation (Current Input)……..…………. 5

Pullup Installation (Frequency Output)…………….. 5

Mounting ……………………………………………… 5

Electrical Connections ……………………………… 5

3.0

MODULE CONFIGURATION

……………………….. 6

MATH FORMULATION…..……………………………. 6

4.0

THEORY OF OPERATION

………………………….. 9

5.0

SERVICE AND REPAIR

……………………………… 9

SERVICE AND REPAIR ASSISTANCE ……………. 9

PRELIMINARY SERVICE PROCEDURE ..…………. 9

6.0

SPECIFICATIONS

……………………………………. 10

MODEL NUMBER DEFINITION……………………… 10

INPUT SPECIFICATIONS.……………………………. 10

OUTPUT SPECIFICATIONS……………..………..…

ENCLOSURE/PHYSICAL SPECIFICATIONS..…….. 12

APPROVALS ………………………………………….. 12

ENVIRONMENTAL SPECIFICATIONS …………….. 12

STATUS INDICATORS……………………………….. 13

HOST COMPUTER COMMUNICATION…………….. 13

SOFTWARE CONFIGURATION…………………….. 13

List of Drawings Page

Simplified Schematic (4501-741)…….………………….… 15

Functional Block Diagram (4501-743)….………………… 16

Computer to IntelliPack Connections (4501-747)….……. 17

Electrical Connections (4501-744).……………….…..…... 18

Enclosure Dimensions (4501-745)….………………..…… 19

Factory Configuration Order Form (8500-592)………….. 20

REVISION HISTORY 21

IMPORTANT SAFETY CONSIDERATIONS

It is very important for the user to consider the possible adverse

effects of power, wiring, component, sensor, or software failures

in designing any type of control or monitoring system. This is

especially important where economic property loss or human life

is involved. It is important that the user employ satisfactory

overall system design. It is agreed between the Buyer and

Acromag, that this is the Buyer's responsibility.

Windows 95/98 & NT are registered trademarks of Microsoft

Corporation.

1.0 INTRODUCTION

These instructions cover hardware functionality of the

transmitter models listed in Table 1. Supplementary sheets are

attached for units with special options or features.

Table 1: Models Covered in This Manual

Series/

Input/Type

Options/Output/

Enclosure/Approvals

Factory

Configuration

895M3 -0800 -C

896M3 -0800 -C

Notes (Table 1):

1. Approvals: cULus Listed.

2. Include the “-C” suffix to specify factory configuration option.

Otherwise, no suffix is required for standard configuration.

3. Model 896M-0800 units have two input channels, while

895M-0800 units have one input channel.

Module programming, transmitter operation, and the

IntelliPack Configuration Software are also covered in the

IntelliPack Transmitter Configuration Manual (8500-570).

DESCRIPTION

Series 895/896M Frequency Output Transmitters are

members of the popular Acromag IntelliPack Transmitter & Alarm

family. These models will accept one or two channels of DC

current or voltage input, and provide an isolated pulse or square

waveform output, whose frequency or duty cycle is controlled via

a programmed mathematical operation operating on one or both

input signals. Each channel also includes a solid-state output

whose ON/OFF state is controlled via a separate equation. Each

input, output, and control output has its own variable name that

allows it to be included in any output equation. All units are fully

reconfigurable via our user-friendly Windows 95/98 or NT

IntelliPack Configuration Program. IntelliPacks contain an

advanced technology microcontroller with integrated down-

loadable flash memory for non-volatile program, configuration,

calibration, and parameter data storage. Once configured, these

modules may operate independent of a host computer for true

embedded computation, process monitoring, and control.

Module inputs may be field connected for either process

current or DC voltage input signals. The 896M provides two

current or voltage inputs, while the 895M provides one current or

voltage input. Mathematical operators and embedded functions

may be applied to one or both input signals to control either

output frequency or duty cycle, depending on the output response

type selected. Three types of output response are possible: a

frequency output with variable frequency in Hertz and fixed 50%

duty cycle, a pulse-width modulated output with a fixed output

frequency and variable duty cycle, and a low frequency output

pulse in counts per hour with a fixed pulse ON-time. Equations

for each output and each control output can be configured and

may include variables that represent the input signal, output

signal, or control output state. A wide variety of math and logical

operators and functions are provided. The module also includes

low dropout function support which allows a minimum input level

to be defined that below which, a zero input is assumed. A status

indicator on the front of the module flashes for input signals in the

low dropout region.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

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This module includes open-drain frequency outputs with

optional pullups to +5V built-in. The open-drain frequency output

can be used to drive electronic counters (TTL or CMOS) directly

(using the internal pullup), or it can be used to drive electro-

mechanical counters when connected to an external DC power

source. For output frequency ranges from 10Hz to 10,000Hz full-

scale, the unit outputs a 50% duty-cycle pulse waveform. For

output frequency ranges from 10CPH to 100,000CPH full-scale,

the duty cycle defaults to a 50ms ON-time pulse width, but may

be alternately specified from 1ms to 255ms. A yellow LED for

each channel indicates input over/under-range status, plus zero

dropout status. A green “Run” LED indicates power and

operation status. Each channel also includes wire terminals that

may be used to externally signal the module to hold the

corresponding transmitter output at the last value.

In addition to the frequency outputs, these modules include

an isolated, solid-state, control output switch for each input that

will change states via its own control equation. Each channel

includes a yellow LED on the front of the module to provide visual

indication of the switch ON/OFF state.

The module uses a high resolution, low noise, Sigma-Delta,

Analog to Digital Converter (- ADC) to accurately convert the

input signals into digitized values. All scaling and computation is

performed using single-precision, floating point arithmetic within

the main microcontroller. Separate optically-isolated slave

controllers provide counter and timer regulation of the output

waveform for precise and accurate control.

All IntelliPack modules are designed to withstand harsh

industrial environments. They feature RFI, EMI, ESD, EFT, and

surge protection, plus low temperature drift, wide ambient

temperature operation, and isolation between input, output, and

power. They also have low radiated emissions per CE

requirements. As a wide-range DC-powered device, the unit may

be powered from DC power networks incorporating battery back-

up. Additionally, the input power terminal is diode-coupled,

providing reverse polarity protection. This allows the unit to be

connected to redundant power supplies, or several units to safely

share a single DC supply.

Units are DIN-rail mounted and removable terminal blocks

facilitate ease of installation and replacement, without having to

remove wiring. Transmitter power and output wiring are inserted

at one side of the unit, while input wiring is inserted at the other

side. Connectors are an industry standard screw clamp type and

accept a wide range of wire sizes.

Variable input and output ranges, generous math and logical

operation support, flexible power requirements, plus convenient

reprogrammability makes this instrument extremely powerful and

useful over a broad range of applications. For example, it can be

used in telemetry systems where the DC signal is converted to a

frequency, transmitted over long lines, then converted back to a

DC signal at the receiving end by means of a frequency to DC

converter. It can also be used as a frequency input to a PLC.

When connected to a counter at the output, the module may be

used in totalizing applications, where the total number of pulses

counted in a given time period represents the time integral of the

DC input. That is, if the input represents flow in gallons per hour,

then the time integral of this flow signal (total count) will represent

total gallons.

Another use involves varying pulse-width on-time as a function of

the input signal at any frequency from 1 to 10KHz. The safe,

compact, rugged, reconfigurable, and reliable design of this

transmitter makes it an ideal choice for control room and field

applications. Custom IntelliPack module configurations are also

possible (please consult the factory).

Key IntelliPack 895M/896M Features

 Easy Windows Reconfiguration - Via the user friendly

Windows 95/98 or NT IntelliPack Configuration Program.

 Separate Frequency & Control Output Equations - Each

output (frequency or pulse-width) is controlled via its own

output equation. The state of the control outputs is also

driven by their own equations.

 Supports Integrator/Totalizer Applications - When used

with a counter, these models can be used to integrate and

totalize input signals representing such process variables as

flow, weight, power, and BTU’s. Math support allows this

module to be configured with a linear response, square-root

response, or other user-defined integrator/totalizer type.

 Generous Mathematical Operator & Function Support -

This transmitter may mathematically combine one or two

inputs or outputs using addition, subtraction, multiplication,

and division. In addition, functions for square root, absolute

value, min/max detection, exponential, logarithmic, power,

sine, cosine, tangent, arc-sine, arc-tangent, and arc-cosine

generation are supported. Conditional constructs with IF-

THEN-ELSE are included. Variables are provided for each

input and output. Initial output values may be assigned and

take effect following power-up or a reset until the internal

computation takes control of the output. Other functions are

possible—please consult the factory.

 IF-THEN-ELSE Support - Evaluates conditional statements

IF-THEN-ELSE, AND, OR, plus >, >=, <, <=, =, and <>.

 Supports Pulse-Width Modulation - A fixed output

frequency from 1Hz to 10KHz may have its pulse width

modulated between a minimum specified duty cycle and

maximum specified duty cycle with 0.1% resolution. PWM

outputs may be used in stepper controls, servo systems,

light dimmer controls, and variable frequency drives.

 Supports Frequency Output Over Wide Range - This

module can generate a square-wave output waveform in the

range of 0 to 10KHz (50% duty cycle). Low frequency

ranges in counts per hour are also supported and allow the

pulse ON-time to be specified (see below).

 Generates Accurate Low Frequency Pulses in CPH -

Accurate low frequency pulse trains may be generated from

0 to 100000 Counts Per Hour (10 CPH minimum span). The

pulse ON-time may be configured from 1 to 255ms, or a

50% duty cycle may be used (On-Time=0).

 Includes Solid-State Control Outputs w/ LED Indication -

Each input includes an isolated solid-state control output (a

normally open 1 Form A switch) that is controlled via

separate user-defined control output equations. These

outputs may switch up to 60VDC at 500mA. Variables that

represent the current state of these outputs may be included

in output equations. A yellow “CONTROL” LED for each

output is included to indicate the switch “ON” condition.

 High Voltage & Current Open Drain Outputs - The open

drain outputs of this module may switch up to 60VDC at 1A.

 Output HOLD Function - An external HOLD input terminal

is provided to optionally signal the module to hold the

module’s corresponding frequency output at the last value.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

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Key IntelliPack 895M/896M Features…continued

 Zero Drop Out Functionality - A zero drop out level from 0

to 10% of input span can be specified and the module will

evaluate input signals below this level as equivalent to zero.

The channel’s corresponding STATUS LED will blink to

indicate input signals in the zero drop out region.

 Convenient Scaling to Engineering Units – I/O signals

are easily scaled to units/ ranges to fit your application.

 Nonvolatile Reprogrammable Memory - This module has

an advanced technology microcontroller with integrated,

non-volatile, downloadable flash memory. This allows the

functionality of this device to be reliably reprogrammed

thousands of times.

 Fully Isolated - Input, frequency outputs, control outputs,

and power are isolated from each other for safety and

increased noise immunity. Inputs share common and are

not isolated channel-to-channel. Frequency outputs share

common and are not isolated output-to-output. Control

outputs are separately isolated.

 Convenient Output Excitation Supply - The open-drain

outputs may use the internal 470 pullups to +5V, or

external pullups to some other supply up to 60VDC.

 Flexible DC Current or Voltage Inputs - Each input is

individually configurable for several ranges of process

current or voltage, without changing models.

 Wide-Range DC-Powered - This device operates from a

wide DC supply range and the power terminal is diode-

coupled. This makes this transmitter useful for systems with

redundant supplies, and/or battery back-up.

 Wide Ambient Operation - The unit is designed for reliable

operation over a wide ambient temperature range.

 Hardened For Harsh Environments - The unit will operate

reliably in harsh industrial environments and includes

protection from RFI, EMI, ESD, EFT, and surges, plus low

radiated emissions per CE requirements.

 Convenient Mounting, Removal, & Replacement - The

DIN-rail mount and plug-in type terminal blocks make

module removal and replacement easy.

 High-Resolution Precise A/D Conversion - Includes a

high-resolution, low noise, Sigma-Delta, Analog-to-Digital

Converter (- ADC) for high accuracy and reliability.

 LED Indicators - Used to indicate power, operation, alarm,

zero-dropout, and channel over/under-range status.

ACCESSORY ITEMS

The following IntelliPack accessories are available from

Acromag. Acromag also offers other standard and custom

transmitter and alarm types to serve a wide range of applications

(please consult the factory).

IntelliPack Configuration Software (Model 5030-881)

IntelliPack alarms and transmitters are configured with this

user-friendly Windows 95/98 or NT Configuration Program.

This software package includes the IntelliPack Alarm

Configuration Manual (8500-563) and IntelliPack Transmitter

Configuration Manual (8500-570). These manuals describe

software operation and various alarm and transmitter functions in

detail. The Configuration Software also includes an on-line help

function. All transmitter and alarm functions are programmable

and downloadable to the modules via this software. Non-volatile

memory provides program, configuration, and data storage within

the IntelliPack.

IntelliPack Serial Port Adapter (Model 5030-913)

This adapter serves as an isolated interface converter

between the EIA232 serial port of the host computer and the

Serial Peripheral Interface (SPI) port of the IntelliPack module. It

is used in conjunction with the Acromag IntelliPack Configuration

Software to program and configure IntelliPack modules. This

adapter requires no user adjustment, no external power, and

operates transparent to the user. It receives its power from the

IntelliPack module. The adapter has a DB9S connector that

mates to the common DB9P serial port connector of a host

computer. The adapter also has a 6-wire RJ11 phone jack to

connect to the IntelliPack alarm module via a separate

interconnecting cable (described below). Refer to Drawing 4501-

747 for computer to IntelliPack connection details.

IntelliPack Cable (Model 5030-902)

This 6-wire cable is used to connect the SPI port of the

IntelliPack Serial Port Adapter to the IntelliPack. This cable

carries the SPI data and clock signals, reset signal, and +5V

power and ground signals. The cable is 7 feet long and has a 6-

wire RJ11 plug at both ends which snap into jacks on the Serial

Port Adapter and the IntelliPack module.

IntelliPack USB-to-RS232 Serial Adapter (P/N 4001095)

This adapter is used to add a traditional RS232 serial port

to newer personal computers or laptops that do not support

legacy RS232 serial ports, but may have USB serial support.

This adapter requires no user adjustment, no external power, and

operates transparent to the user. The adapter has a USB

connector at one end of a 6 foot cable for connection to a host

computer, and a DB9P connector at the other end for connection

to serial port adapter 5030-913 of this kit. Refer to Drawing

4501-747 for computer to IntelliPack connection details.

IntelliPack Software Interface Package (Model 800C-SIP)

The IntelliPack Software Interface Package combines the

Configuration Software (5030-881), Transmitter Configuration

Manual (8500-570), Alarm Configuration Manual (8500-563),

Serial Port Adapter (5030-913), USB-to-RS232 Serial Adapter,

and Cable (5030-902), into a complete kit for interfacing with

IntelliPack Transmitters and Alarms.

2.0 PREPARATION FOR USE

UNPACKING AND INSPECTION

Upon receipt of this product, inspect the shipping carton for

evidence of mishandling during transit. If the shipping carton is

badly damaged or water stained, request that the carrier's agent

be present when the carton is opened. If the carrier's agent is

absent when the carton is opened and the contents of the carton

are damaged, keep the carton and packing material for the

agent's inspection. For repairs to a product damaged in

shipment, refer to the Acromag Service Policy to obtain return

instructions. It is suggested that salvageable shipping cartons

and packing material be saved for future use in the event the

product must be shipped.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

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This module is physically protected

with packing material and electrically

protected with an anti-static bag

during shipment. However, it is

recommended that the module be

visually inspected for evidence of

mishandling prior to applying power.

This circuit utilizes static sensitive

components and should only be

handled at a static-safe workstation.

INSTALLATION

The transmitter module is packaged in a general purpose

plastic enclosure. Use an auxiliary enclosure to protect the unit in

unfavorable environments or vulnerable locations, or to maintain

conformance to applicable safety standards. Stay within the

specified operating temperature range. As shipped from the

factory, the unit is factory calibrated for all valid input ranges and

has the default configuration shown in Table 3 below.

WARNING: Applicable IEC Safety Standards may require that

this device be mounted within an approved metal enclosure or

sub-system, particularly for applications with voltages greater

than or equal to 75VDC or 50VAC.

Table 3: 895M/896M Default Factory Configuration1

PARAMETER

CONFIGURATION/CALIBR

ATION

Input 1 Range

0 to 10V DC

Input 1 Zero Dropout 0.0%

Input 2 Range

0 to 10V DC

Input 2 Zero Dropout 0.0%

Output 1 Range Type Frequency (Hertz)

Output 2 Range Type Frequency (Hertz)

Input 1 Scaling 0V = 0%; 10V = 100%

Output 1 Scaling 0Hz=0; 10KHz = 100

Input 2 Scaling 0V = 0%; 10V = 100%

Output 2 Scaling 0Hz=0; 10KHz = 100

Output 1 Equation

Control Out 1 Equation

A > 50

Output 2 Equation

Control Out 2 Equation

D > 50

Notes (Table 3):

1. Shaded entries apply to 896M-0800 units only which have two

I/O channels.

2. Variables A, B, C, D, E, and F are used in the output

equations to represent input 1, output 1, control output 1,

input 2, output 2, and control output 2, respectively.

3. For process current input ranges, a short jumper wire must be

inserted between the input “I+” and “V+” terminals (not

included). This jumper is removed for voltage input ranges.

Your application may differ from the default configuration and

will require that the transmitter be reconfigured to suit your needs.

This is accomplished with Acromag’s user-friendly Windows

95/98 or NT Configuration Program and Serial Port Adapter. It

is usually more convenient to configure the module prior to field

installation. See Software Configuration for details and refer to

the Transmitter Configuration Manual (8500-570) for additional

instructions.

Jumper Installation (Current Input)

For process current input, a short jumper wire must be

installed between the input “I+” and “V+” terminals. This jumper

is not included from the factory. Remove this jumper for voltage

input applications. Refer to the Electrical Connections Drawing

4501-744.

Pullup Installation (Open-Drain Frequency Output)

The frequency outputs are an open-drain type and require a

pullup resistor to complete the drive circuit (see Drawing 4501-

744). Internal pullups of 470 to +5V are provided at the PUL1

and PUL2 terminals. Simply install a jumper between the open-

drain output (FRQ1 or FRQ2) and the pullup terminal (PUL1 or

PUL2). This will be adequate for building a simple logic level

interface for TTL and CMOS, but may be inadequate for other

interfaces requiring higher voltages and currents. As such,

outputs may also be pulled up externally by installing an

appropriate pullup resistor between the open drain output and an

external excitation supply up to 60VDC (do not connect to PUL1

or PUL2). Limit drain currents to less than 1A. Configure the

output pullup(s) as required by your application. Refer to the

Electrical Connections Drawing 4501-744.

Mounting

Refer to Enclosure Dimensions Drawing 4501-745 for

mounting and clearance dimensions.

DIN Rail Mounting: This module can be mounted on "T"

type DIN rails. Use suitable fastening hardware to secure the

DIN rail to the mounting surface. Units may be mounted

side-by-side on 1-inch centers for limited space applications.

"T" Rail (35mm), Type EN50022: To attach a module to this

style of DIN rail, angle the top of the unit towards the rail and

locate the top groove of the adapter over the upper lip of the

rail. Firmly push the unit towards the rail until it snaps solidly

into place. To remove a module, first separate the input

terminal block(s) from the bottom side of the module to

create a clearance to the DIN mounting area. Next, insert a

screwdriver into the lower arm of the DIN rail connector and

use it as a lever to force the connector down until the unit

disengages from the rail.

Electrical Connections

Terminals can accommodate wire from 14-26 AWG (stranded

or solid), or 12 AWG stranded. Strip back wire insulation 1/4-inch

on each lead before installing into the terminal block. Input wiring

should be shielded twisted-pair. Since common mode voltages

can exist on signal wiring, adequate wire insulation should be

used and proper wiring practices followed. It is recommended

that transmitter output and power wiring be separated from the

input signal wiring for safety, as well as for low noise pickup.

Note that input, power, and output terminal blocks are a plug-in

type and can be easily removed to facilitate module removal or

replacement without removing individual wires. If your input is

process current, you must install a short jumper wire between the

input “I+” and “V+” terminals to complete the input circuit. Be

sure to remove power and/or disable the load before unplugging

the terminals to uninstall the module, installing or removing

jumpers, or before attempting service. All connections must be

made with power removed.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

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CAUTION:

Risk of Electric Shock - More than one disconnect

switch may be required to de-energize the equipment before

servicing.

1. Power: Refer to Electrical Connections Drawing 4501-744.

Variations in power supply voltage within rated limits has

negligible effect on module accuracy. For supply

connections, use No. 14-24 AWG wires rated for at least

90C. The power terminal is diode-coupled for reverse

polarity protection. Choose a power supply capable of

providing the maximum steady state current draw of the

module, plus the peak inrush current that is required when

power is first switched on, or startup problems may occur. As

a general rule, the peak current approaches twice the

maximum steady state current. Peak currents are reduced

with higher supply voltages.

2. DC Voltage/Current Inputs: Connect input(s) per Drawing

4501-744. Observe proper polarity (see label for input type).

For process current input, the input “I+” terminal must be

jumpered to the input “V+” terminal. Place a short jumper

between these terminals to complete the input circuit for

current inputs only. Otherwise, voltage is delivered to the

“V+” input directly with this jumper removed.

Optional HOLD Wiring: A TTL or open collector/drain signal

may be wired to the hold (labeled “HLD1” & “HLD2”) and

return (HRTN) terminals of the module to hold the

transmitter’s corresponding output at the last value while

HOLD is asserted low (only the analog output is held, not the

engineering units computation). HOLD is pulled-up internally

(deasserted) and is part of the input circuit which is isolated

from the output. HOLD return (HRTN) and input return (RTN)

are not equivalent potentials and should never be tied

together. Make sure that HOLD return is not inadvertently

tied to ground which may be connected to input return.

3. Frequency Output Connections: Wire outputs as shown in

Electrical Connections Drawing. Observe proper polarity.

Either install a jumper from the open-drain output to the

pullup terminal, or wire a pullup resistor to an external supply

as appropriate to your application (see Pullup Installation).

Additional Output Protection: The open-drain outputs of

this module already include a shunt-diode from drain-to-

source to absorb the reverse potential that may develop while

switching inductive loads. However, to further protect the

circuit and increase its useful life, external protection local to

the load is recommended, especially with inductive loads.

For DC inductive loads, place a diode across the load

(1N4006 or equivalent) with cathode to (+) and anode to (-).

IMPORTANT - For Increased Noise Immunity: For low

current applications, such as driving simple logic level inputs,

a 50 resistor connected in series with the output will

significantly reduce the negative effects of ground bounce in

the output signal at the signal transitions. This bounce may

cause false triggering of counter/timers or other high speed

inputs and produce erroneous or erratic readings. To further

reduce transition noise and ground bounce, outputs should

be properly grounded.

4. Control Output Connections: Wire the solid-state relay

outputs as shown in Electrical Connections Drawing

4501-744. Observe proper polarity. Output control is limited

to voltages less than 60V DC and currents below 500mA. If

necessary, an interposing relay can be used to switch higher

currents.

Solid-State Relay Contact Protection: The solid state

control outputs of this module already include a shunt-diode

to absorb the reverse potential that may develop while

switching inductive loads. However, to maximize relay life

with inductive loads and minimize radiated energy, external

protection local to the load is recommended. For DC

inductive loads, place a diode across the load (1N4006 or

equivalent) with cathode to (+) and anode to (-).

5. Grounding: See Electrical Connections Drawing 4501-744.

The module housing is plastic and does not require an earth

ground connection.

WARNING:

For compliance to applicable safety and

performance standards, the use of shielded cable is

recommended as shown in Drawing 4501-744. Further, the

application of earth ground must be in place as shown in

Drawing 4501-744. Failure to adhere to sound wiring and

grounding practices may compromise safety & performance.

3.0 MODULE CONFIGURATION

This computation transmitter needs to be configured for your

application. Input and output ranges must be scaled and

equations that relate the input, output, and control variables must

be entered for the frequency and control outputs. Configuration

is done using Acromag’s Windows 95/98 or NT IntelliPack

Configuration Program and Serial Port Adapter. Additional

transmitter configuration details are included in the IntelliPack

Transmitter Configuration Manual (8500-570) and in Section 6 of

this manual. The following section provides information regarding

the formulation of the equation that relates the input signal(s) to

the outputs of this module.

MATH FORMULATION

Three types of output response are configurable via this

module: 1) a variable high frequency square waveform from 0Hz

to 10Hz to 0 to 10KHz (50% duty cycle), 2) a variable low

frequency pulse train from 0-10 counts per hour (CPH) to

0-100,000 counts per hour with a fixed specified ON-time, and 3)

a fixed output frequency of 1Hz to 10KHz with a variable duty-

cycle from a specified minimum duty cycle to a maximum duty

cycle with 0.1% resolution. In each of these configurations, either

the output frequency or the duty cycle (but not both

simultaneously) is being varied in response to the input signal(s)

with applied math formulation and scaling. Variables that

represent the inputs, outputs, and control outputs may be

combined with constants, math operators, functions, and logical

operators to perform complex input to output conversion and

control. An optional HOLD signal may be wired to the module at

the hold terminals (HLD1, HLD2, HRTN) and is asserted low to

hold the analog output at the last value (hold does not hold the

engineering units computation, only the resultant analog output).

The IntelliPack Configuration Software provides the interface

for scaling the input and output values, and entering the

frequency and control output equations via the transmitter

configuration screen shown on the following page.

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The 895M/896M will mathematically combine the scaled input

signal value(s) according to a preprogrammed output equation

entered via the IntelliPack Configuration Software. In the

Transmitter Configuration Screen shown above, a simple edit box

is provided to enter each output equation that operates on the

scaled input and output values from each channel. Use the scroll

arrows to the right of the equation field to cycle through each

output equation. Equations are entered in a free-form format,

similar to entering a cell formula in Microsoft Excel. The equation

combines standard math operators and functions, with floating

point constants, and variables that represent the scaled input

channel value(s), the current output values, and the current

control output values. The variables A, B, C, D, E, and F are

used in the output equations to represent the scaled equivalent

values of input 1, output 1, control output 1, input 2, output 2, and

control output 2, respectively (see Table 3). The module will

operate on scaled I/O values and compute a solution to the

output equation, then scale the computed value to the desired

output frequency or duty cycle, depending on the output type

configured. Initial output values are defined and take effect

following power-up or reset, until the computation takes control of

the corresponding output.

All scaling and computation is performed using single precision,

floating point arithmetic. A simulator is provided to check scaling

and computation for each channel. Click on the Show Simulator

button to use this feature.

It is important to note that the built-in equation interpreter

operates on scaled input and output values only. Scaled values

are floating-point numbers in the engineering units of your

application and are limited to 8 characters. Large numbers may

be entered in scientific notation (i.e. 123456E3). Each input, plus

the output must be scaled. That is, for each input, you must

specify a scaled value in engineering units for the nominal zero

and full-scale input range endpoints which use mA or volts,

according to the input range configured. You must also specify a

scaled value in engineering units for the nominal zero and full-

scale output range endpoints which use Hz, CPH, or %,

according to the output range configured. The nominal output

zero and full-scale endpoints may also be defined (i.e. a subset of

the output range may be used), while the input zero and full-scale

endpoints are fixed per the configured input range.

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The computed output value in engineering units, is then scaled to

output frequency (Hz or CPH), or duty cycle (%), using the zero

and full-scale frequency endpoints of the desired output range, or

the minimum and maximum duty cycle of a specified fixed output

frequency, depending on the output range selected. The output

signal is then updated accordingly if HOLD is not asserted. Note

that the hold signal does not hold the computation, only the

resultant analog output, and has no effect on the control output.

For example, 4-20mA channel 1 can be scaled to 0-5000Hz at

the output—the 4mA input signal endpoint is scaled to 0Hz and

the 20mA full-scale signal is scaled to 5000Hz. In this case, the

engineering units correspond directly to the output units, but this

is not required.

Up to 200 characters may be entered into the output equation

fields to define a formula that relates the scaled I/O values to the

scaled output value. Note that equation constants can be

entered as floating point numbers, or in scientific notation.

Equation operators are shown in Table 3 below. Channels 1 and

2 may have different input and range type configurations.

Table 3A: IntelliPack 896M/895M Math Operators

OPERATOR

SCRIPTION

Add (Do Not Use “+” To Indicate Polarity)

Subtract or unary minus for constants

Multiply

Divide

(

Left Parenthesis

)

Right Parenthesis

A constant followed by the suffix “e” or

“E” represents scientific notation and a

power of 10 follows (i.e. 10e8 =

100,000,000.0).

Represents the scaled value of input 1

The current scaled value of output 1

The current state of control output 1.

Note: C= 0.0 = False (Switch Open); C

not equal to 0.0 implies True (Switch

Closed).

Represents the scaled value of input 2

The current scaled value of output 2

The current state of control output 2.

Note: F= 0.0 = False (Switch Open); F

not equal to 0.0 implies True (Switch

Closed).

Table 3B: IntelliPack 896M/895M Math Functions

NCTION

DESCRIPTION

MIN(

n1,n2,..,n5

)

Return the minimum value of two to five

channels, numbers, or expressions.

MAX(

n1,n2,..,n5

)

Return the maximum value of two to five

channels, numbers, or expressions.

SQRT(

)

n1>=0

Return the square root of a channel,

number, or expression.

ABS(

)

Return the absolute value of a channel,

number, or expression.

EXP(

)

Compute the exponential (

) of a

channel, number, or expression.

LN(

)

n1 > 0

Compute the natural logarithm (base

) of

a channel, number, or expression.

LOG10(

)

n1 > 0

Compute the base 10 logarithm of a

channel, number, or expression.

POWER(

n1,n2

)

Compute channel, number, or expression

n1 raised to the n2 power (n1n2).

Table 3B: IntelliPack 896M/895M Math Functions

FUNCTION

DESCRIPTION

IN(

)

n1 is in radians

Compute the sine of a channel, number,

or expression.

COS(

)

n1 is in radians

Compute the cosine of a channel,

number, or expression.

TAN(

)

n1 is in radians

Compute the tangent of a channel,

number, or expression.

ASIN(

)

-1 <= n1 <= 1

Compute the arc-sine (sin

, -



/2 <=

radians <= /2) of a channel, number, or

expression.

ACOS(

)

-1 <= n1 <= 1

Compute the arc-cosine (cos

, 0 <=

radians <= ) of a channel, number, or

expression.

ATAN(

)

Compute the arc-tangent (tan

, -



/2 <=

radians <= /2) of a channel, number, or

expression.

IF(

condition

)

THEN(n1)

ELSE(n2)

Conditional Expression. If the conditional

expression is true, then the expression n1

is performed, otherwise the expression n2

is performed. Can only be used one time

in a formula. ELSE must be included.

AND(

n1,n2,..,n5

)

Conditional construct AND of two to five

channels, numbers, or expressions. True

if all n1..n5 are true.

OR(

n1,n2,..,n5

)

Conditional construct OR of two to five

channels, numbers, or expressions. True

if any one or more of n1..n5 are true.

XOR(

n1,n2

)

Conditional construct Exclusive OR of two

to five channels, numbers, or expressions.

True if either of n1 or n2 are true, but not

both.

NOT(

)

Conditional construct for inversion of a

channel, number, or expression. True if

n1 is false.

Conditional construct -less than.

Conditional construct -less than or equal

to.

Conditional construct -greater than.

Conditional construct -greater than or

equal to.

Conditional construct -equal to.

Conditional construct -not equal to.

Notes (Tables 3A & 3B):

1. In the table, “n” is used to represent a channel variable,

number, or expression (another function or equation).

2. Do not use the plus symbol as a polarity indicator, it is only

used for the add operation.

3. Do not type or embed space between the sign of a number

and the number itself.

4. Do not type or embed space between the function keyword

and left parenthesis.

5. The use of control variables C & F within an equation will

return the result of their respective computation equations,

not their “0” or “1” states.

Show Simulator

The IntelliPack Configuration Software also provides a Show

Simulator function that you can use to test your input formulation

and ensure that a correct output response within range is

produced, without having to drive the inputs with real world

signals. For each input, a slider control is provided to simulate

the input signal. For fine control of the slider, use the left and

right arrow keys. The corresponding output value is displayed

using scaled units, and signal units (%, Hz, or CPH).

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Computations that return values beyond the defined range will be

“clipped” to the minimum or maximum scaled values to ensure

that a valid output response is always returned. Error checking in

this area is limited, and it is up to the user to verify correct output

formulation for all possible conditions of input. As such, use of

the Show Simulator function is highly recommended for critical

control applications.

The following example equations are entered into the

Equation field exactly as they are shown below to the right of the

equal “=” sign.

Equation Examples

Compute a simple linear output response to the input signal:

OUTPUT 1 (B) = A

Compute a square root output response to the input signal:

OUTPUT 1 (B) = SQRT(MAX(0,A))

Note that the use of the MAX function in the above example will

prevent negative input signals from being computed.

Compute the average of both input signals:

OUTPUT 1 (B) = (A + D)/2

Compute the smallest square root of 2 input signals:

OUTPUT 1 (B) = MIN(SQRT(ABS(A)), SQRT(ABS(D)))

Compute the square of the scaled value of input 1:

OUTPUT 1 (B) = POWER(A,2)

Compute the sum of the minimum and maximum of 2 signals:

OUTPUT 1 (B) = MIN(A, D) + MAX(A, D)

Compute the maximum of 2 input signals greater than 10:

OUTPUT 1 (B) = MAX(A, D, 10)

Examples of Conditional expressions follow:

OUTPUT 1 (B) = IF(AND(A>D,A>10)) THEN(A*2) ELSE(D*3)

OUTPUT 1 (B) = IF(OR(A>=D,A=50)) THEN(A) ELSE(D) - 12.56

Implement a control output equation for C with a high setpoint

above A=50 and a deadband of 2:

C=IF(OR(AND(C=0, A>50), AND(C=1, A>48))) THEN(1) ELSE(0)

or simplified

C=OR(AND(C=0, A>50), AND(C=1, A>48))

or simplified further

C=OR((A>50), AND(C=1, A>48))

When formulating an equation or response, it is important to

keep the limits of module resolution in mind (see Table 5). In

some cases, it may be necessary to normalize your variables or

output response. Always use the Show Simulator function to test

your equation over the full range of input to ensure a valid output

response. A computation that returns a value beyond the defined

range will be “clipped” to the minimum or maximum scaled values

to ensure a valid response is always returned. Due to memory

constraints of the module, some lengthy equations may be too

complex and an error will be indicated in the Show Simulator

screen.

For additional help with your computation and to view other

examples, use the online HELP function of the Configuration

Software.

4.0 THEORY OF OPERATION

Refer to Simplified Schematic 4501-741 and Functional Block

Diagram 4501-743 to gain a better understanding of the circuit.

Note that this transmitter will pre-filter a signal and convert the

signal to a scaled voltage--either through a voltage divider circuit

(voltage input), or a current sink resistor (current input). An A/D

converter stage then applies appropriate gain to the signal,

performs analog-to-digital conversion, and digitally filters the

signal. The digitized signal is then transmitted serially to the

main microcontroller. The main microcontroller completes the

transfer function for the frequency output(s) and the control

output(s) according to its configuration and programmed

equation. The main microcontroller then serially transmits a

scaled output signal to optically isolated slave controllers, one per

output channel. The slave controller uses its internal

counter/timer to regulate the output frequency or pulse-width

under direction of the main controller. The main controller also

switches the corresponding control outputs on or off according to

the resultant of the control output equation. Embedded

configuration and calibration parameters are stored in non-volatile

memory integrated within the microcontroller. Only the functions

required by an application are actually stored in memory—new

functionality can be downloaded via the IntelliPack Configuration

Program and Serial Port Adapter. A wide input range switching

regulator (isolated flyback mode) provides isolated +5V power to

the circuit, plus an isolated +5V output circuit supply.

5.0 SERVICE AND REPAIR

WARNING: To prevent electric shock, be sure to remove

power and/or disable the load before unplugging terminals to

uninstall the module or before attempting service. All

connections must be made with power removed.

SERVICE AND REPAIR ASSISTANCE

This module contains solid-state components and requires no

maintenance, except for periodic cleaning and transmitter

configuration parameter (zero, full-scale, scaling, etc) verification.

Since Surface Mounted Technology (SMT) boards are generally

difficult to repair, it is highly recommended that a non-functioning

module be returned to Acromag for repair. The board can be

damaged unless special SMT repair and service tools are used.

Further, Acromag has automated test equipment that thoroughly

checks and calibrates the performance of each module. Please

refer to Acromag’s Service Policy Bulletin or contact Acromag for

complete details on how to obtain service parts and repair.

PRELIMINARY SERVICE PROCEDURE

Before beginning repair, be sure that all installation and

configuration procedures have been followed. The unit routinely

performs internal diagnostics following power-up or reset. During

this period, all LED’s will turn ON momentarily, and the green

“Run” LED flashes. If the diagnostics complete successfully, the

“Run” LED will stop flashing after approximately one second and

remain ON. This indicates that the unit is operating normally.

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If the “Run” LED continues to flash, then this is indicative of a

problem. In this case, use the Acromag IntelliPack Configuration

Software to reconfigure the module or download its firmware and

this will usually cure the problem. If the diagnostics continue to

indicate a problem (a continuously flashing green LED), or if other

evidence points to a problem with the unit, an effective and

convenient fault diagnosis method is to exchange the

questionable module with a known good unit.

The IntelliPack Serial Port Adapter also contains a red LED

visible at the small opening in the enclosure to the right of the

RJ11 receptacle. If this LED is OFF or Flashing and power is

ON, then a communication interface problem exists. Note that

the adapter receives its power from the IntelliPack module. A

constant ON LED indicates a properly working and powered

serial interface adapter.

Acromag’s Application Engineers can provide further

technical assistance if required. When needed, complete repair

services are available from Acromag.

6.0 SPECIFICATIONS

895M-0800-C, One I/V Input, Single Open-Drain & SSR Output

896M-0800-C, Two I/V Inputs, Dual Open-Drain & SSR Outputs

General: The IntelliPack Model 895M-0800 and 896M-0800

are DC-powered computation transmitters which

mathematically combine one or two channels of process

current or voltage, and provide one or two isolated open drain

frequency outputs whose response is the result of a

programmed equation that operates on the input and output

variables. A separate isolated control output is included for

each input and may also have an equation defined for

ON/OFF control of DC loads. Isolation is supplied between

the input, frequency output, control outputs, and power. Input

channels share common and are not isolated from each

other. Frequency outputs also share common and are not

isolated from each other. Control outputs are individually

isolated. This transmitter is DIN-rail mounted.

The unit is configured and calibrated with our user-friendly

Window 95/98 or NT IntelliPack Configuration Program.

All calibration and configuration information is stored in non-

volatile reprogrammable memory in the module.

MODEL NUMBER DEFINITION

Transmitters are color coded with a white label. The prefix “8”

denotes the IntelliPack Series 800, while the “M” suffix specifies

that this device is primarily a computation (Math) transmitter.

89xM: Provides one or two channels of isolated open-drain

output waveforms with variable duty cycle or frequency in

response to mathematical equations that operate on the

input and output variables. Additionally, it provides one

or two solid-state control output(s) that are switched ON

or OFF via the resultant of a programmed mathematical

equation that operates on the input and output variables.

-0800: The four digits of this model suffix represent the following

options, respectively:

0 = Relay: No Alarm Relay;

8 = Output: Frequency, Open-Drain;

0 = Enclosure: Standard DIN rail mount;

0 = Power: Standard DC power.

INPUT SPECIFICATIONS

Unit must be wired and configured for the intended input types

and ranges (see Installation Section for details). The following

paragraphs summarize this model’s input types, ranges, and

applicable specifications.

DC (Process) Current (Jumper Required): 0-1mA, 0-20mA,

and 4-20mA. All input ranges are subsets of the 0-20mA

input range. The input I+ terminal must be jumpered to the

V+ terminal to utilize current input. A precision 49.9 current

sink resistor is placed in the I+ input lead and converts the

input current to a voltage that is processed by the A/D

converter. The 0-1mA range is not recommended for dual-

channel units (896M).

Current Input Reference Test Conditions: 4 to 20mA input

(I+ to V+ jumper installed); Ambient Temperature = 25C;

Power Supply = 24VDC; Output = 0-10KHz; Output Formula

= A (or D).

Input Overvoltage Protection: Bipolar Transient Voltage

Suppressers (TVS), 18V clamp level typical.

Input Resistance: 550K, typical.

DC Voltage (10:1 Input Divider): 0-5VDC or 0-10VDC.

Voltage Input Reference Test Conditions: 0 to 10V DC

input; Ambient Temperature = 25C; Power Supply = 24V

DC; Output = 0-10KHz, Normal Acting; Output Formula = A

(or D).

Input Overvoltage Protection: Bipolar Transient Voltage

Suppressers (TVS), 18V clamp level typical.

General Input Specifications

Input Accuracy: Better than 0.05% of input span, typical.

Better than 0.1%, typical for 0-1mA range (895M Only).

The 0-1mA input range is not recommended for dual

channel units (896M). This includes the effects of

repeatability, but not sensor error. This refers to input

accuracy only, but does not include frequency output

accuracy (see Table 6).

Accuracy Versus Temperature: Better than ±0.005% of

input span per C, or 1uV/C, whichever is greater.

Resolution: See Table 5.

Input Bias Current: ±100nA maximum, excluding excitation

current of process current inputs.

Input Filter: Normal mode filtering, plus digital filtering,

optimized and fixed per input range within the - ADC.

Noise Rejection (Normal Mode): 40dB @ 60Hz, typical

with 100 input unbalance (49.9 for process currents).

Noise Rejection (Common Mode): 100dB @ 60Hz, typical

with 100 input unbalance (49.9 for process currents).

Analog to Digital Converter (A/D): A 16-bit - converter.

Input Conversion Rate: 896M at 8 conversions per second

per channel typical; 895M at 15 conversions per second

per channel typical. This rate will vary with the

complexity of the configured computation.

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Input Scaling: The configuration software is used to scale

the nominal input signal range endpoints indicated, to

values representative of the your application’s

engineering units. Constants are limited to 8 characters

and may be entered as floating point numbers or using

scientific notation. If you wish to use a subset of the

nominal input range (note that these endpoints are fixed

on the transmitter configuration page according to your

input range selection), then you will have to extrapolate

the corresponding scaled values as required.

Input Zero Dropout (Each Input): A zero dropout value

from 0 to 10% of input span may be defined which sets

the level below which the input is assumed to be zero.

Resolution is 1% of nominal input span. Input values

from 0 to this level are treated as equivalent to zero input.

The input “STATUS” LED will blink if the input signal is

below the zero dropout level. A zero dropout of 0%

disables this feature. Zero dropout is useful for integral

and totalization applications where some residual or base

output must be ignored.

HLD1 & HLD2 (External Hold Input Terminals): A TTL or

open collector/drain signal (5V logic) may be wired

directly to the HLD1, HLD2, and HRTN terminals of the

module to hold the corresponding transmitter’s output at

the last value while HOLD is asserted. HOLD is asserted

low and pulled-up internally. The HOLD circuit is part of

the input circuitry and is isolated from the output circuit.

HOLD does not hold the engineering units computation,

only the corresponding analog output. Note that the input

return (RTN) and hold return (HRTN) terminals are not

equivalent potentials and should never be tied together,

either directly or through ground. Be careful when

making earth ground connections that hold return (HRTN)

is not tied to earth ground, which may be connected to

input RTN.

Table 5: Effective Resolution Per Nominal Input Range

Gain A

Nominal Input Range

Effective Bits/

A/D Resolution

128

0-1mA DC

16797/

60nA/LSB

0-20mA DC

20996/

953nA/LSB

4-20mA DC

16797/

953nA/LSB

0-5V DC

26298/

190uV/LSB

0-10V DC

26298/

380uV/LSB

OUTPUT SPECIFICATIONS

These units contain two types of outputs: an open-drain

frequency output (1 per channel), plus an isolated control output

(1 Form A switch per channel). Optically isolated micro-

controllers provide the counter and timer functions for frequency

output waveform control. Separately isolated solid-state relays

provide control outputs. Frequency outputs share common and

are not isolated output-to-output. Control outputs are individually

isolated.

Frequency Output Specifications: These are open-drain

frequency outputs whose duty-cycle or frequency is controlled via

a pre-programmed control equation.

Output Configuration: Open-Drain Mosfet.

Output Maximum Drain Current: 1A maximum.

Output Maximum OFF-State Voltage: 60V DC.

Output Rds ON: 0.2 maximum, drain-to-source.

Output Frequency Range: 0-10KHz.

Output Pullup (Internal): 470 to circuit +5V in series with

pullup terminals (PUL1 & PUL2). Install jumper from open-

drain output (FRQ1 or FRQ2) to pullup terminals to use

internal pullups. Otherwise, you may install a resistor from

the open drain output (FRQ1 or FRQ2) to an external supply

up to 60VDC.

Output Accuracy: See Table 6. Specification given does

not apply to units calibrated for 0-1mA input range.

Output Resolution: Resolution varies with frequency. See

Table 6.

Table 6: Effective Output Range Resolution & Accuracy

Output Range

Lowest

Accuracy (% Span)

Resolution

Output

Overall

0 to 10KHz 10 Hz 0.1% 0.15%

0 to 1KHz 0.1 Hz 0.01% 0.06%

0 to 100Hz 0.008 Hz 0.008% 0.06%

0 to 10Hz 0.00064 Hz 0.0064% 0.06%

0 to 100000 CPH 10 CPH 0.01% 0.06%

0 to 10000 CPH 1.0 CPH 0.01% 0.06%

0 to 1000 CPH 0.1 CPH 0.01% 0.06%

0 to 100 CPH 0.01 CPH 0.01% 0.06%

0 to 10 CPH 0.001 CPH 0.01% 0.06%

0 to 100% Duty Cycle

(Freq. 1Hz to 10KHz)

0.1%

0.15%

Control Output Specifications: These are separately isolated

control outputs (one switch per channel) that will change

state according to a pre-programmed control equation.

Output Configuration: 1 Form A normally-open switch.

Output Maximum Current: 500mA DC maximum.

Output Maximum OFF-State Voltage: 60V DC.

Output ON-State Resistance: 0.7 maximum.

Output Response Time: 200ms typical, 65ms minimum.

General Output Specifications

Integral Non-Linearity: 0.002% (1.4LSB) of span typical,

0.012% (7.9LSB) of span maximum, for ranges utilizing

full output span.

Output Temperature Drift: Better than 20ppm/C Typical,

50ppm/C Maximum.

Output Conversion Rate: 896M at 8 conversions per

second per channel typical; 895M at 15 conversions per

second per channel typical. This rate will vary with the

complexity of the configured computation.

Output HOLD Function: A TTL or open collector/drain

signal (5V logic) may be wired directly to the HLD1,

HLD2, and HRTN terminals of the module to hold the

transmitter’s corresponding output at the last value.

HOLD is asserted low and pulled-up internally. HOLD

does not hold the engineering units computation, only the

corresponding analog output. The HOLD circuit is part of

the input circuit and isolated from the output circuit. Note

that input return (RTN) and hold return (HRTN) are not

equivalent potentials and should never be tied together,

either directly or through ground.

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Be careful when making earth ground connections that

hold return (HRTN) is not tied to earth ground, which may

be connected to input RTN.

Output Scaling: The configuration software is used to scale

the output signal range endpoints (in Hz, CPH, or % Duty

Cycle), to values representative of your output equation’s

engineering units. Output frequency is limited from 0 to

10Hz (minimum span) to 0 to 10KHz (maximum span), or

0 to 10CPH (minimum span) to 0 to 100000CPH

(maximum span). Output duty cycle is 0% to 100% for

frequencies from 1Hz to 10KHz. Constants are limited to

8 characters and may be entered as floating point

numbers or using scientific notation.

ENCLOSURE/PHYSICAL SPECIFICATIONS

Unit is packaged in a general purpose plastic enclosure that is

DIN rail mountable for flexible, high density (approximately 1”

wide per unit) mounting. See Enclosure Dimensions Drawing

4501-642 for details.

Dimensions: Width = 1.05 inches, Height = 4.68 inches, Depth

= 4.35 inches (see Drawing 4501-745).

DIN Rail Mounting (-xx0x): DIN rail mount, Type EN50022; “T”

rail (35mm).

Connectors: Removable plug-in type terminal blocks;

Current/Voltage Ratings: 15A/300V; Wire Range: AWG #14-

24 solid or stranded; separate terminal blocks are provided

for inputs 1 & 2, solid state relay outputs 1 & 2, power &

HOLD terminals, and frequency outputs 1 & 2.

Case Material: Self-extinguishing NYLON type 6.6 polyamide

thermoplastic, UL94 V-2, color beige; general purpose NEMA

Type 1 enclosure.

Printed Circuit Boards: Military grade FR-4 epoxy glass.

Shipping Weight: 1 pound (0.45 Kg) packed.

APPROVALS (-xxx0)

0: cULus Listed, UL File E199702

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature: -25C to +70C (-13F to +158F).

Storage Temperature: -40C to +85C (-40F to +185F).

Relative Humidity: 5 to 95%, non-condensing.

Power Requirements: +10V Minimum to +36V DC Maximum.

Current draw is a function of supply voltage (see Table 8).

Current draw is given with and without the Serial Port Adapter

connected for single and dual channel models, with status

LED’s ON. An internal diode provides reverse polarity

protection. Your power supply must be adequate to provide

the steady-state current shown below, plus the peak inrush

current that occurs when power is switched on. As a general

rule, your supply should be chosen to provide at least twice

the current indicated below for the voltage of interest, or

startup problems may occur.

CAUTION: Do not exceed 36VDC peak, to avoid

damage to the module.

Table 8A: 896M Supply Current

Supply

Voltage

Supply Current

(SPA Connected)

Supply Current

(SPA Not Connected)

10V 130mA 105mA

12V 105mA 85mA

15V 85mA 70mA

24V 55mA 50mA

36V 45mA 40mA

Table 8B: 895M Supply Current

Supply

Voltage

Supply Current

(SPA

Connected)

Supply Current

(SPA Not Connected)

10V 120mA 95mA

12V 95mA 80mA

15V 80mA 65mA

24V 50mA 45mA

36V 40mA 35mA

IMPORTANT - External Fuse: If unit is powered from a supply

capable of delivering more than 1A to the unit, it is recommended

that this current be limited via a high surge tolerant fuse rated for

a maximum current of 1A or less (for example, see Bel Fuse

MJS1).

Power Supply Effect:

DC Volts: Less than 0.001% of output span change per

+volt DC for rated power supply variations.

60/120 Hz Ripple: Less than 0.01% of output span per volt

peak-to-peak of power supply ripple.

Isolation: Input, frequency output, control outputs, and power

circuits are isolated from each other for common-mode

voltages up to 250VAC, or 354V DC off DC power ground, on

a continuous basis (will withstand 1500VAC dielectric

strength test for one minute without breakdown). This

complies with test requirements outlined in ANSI/ISA-82.01-

1988 for the voltage rating specified. Inputs share common

and are not isolated from each other. Outputs also share

common and are not isolated output-to-output. Control

outputs are separately isolated.

Installation Category: Designed to operate in an Installation

Category (Overvoltage Category) II environment per IEC

1010-1 (1990).

Radiated Field Immunity (RFI): Designed to comply with

IEC1000-4-3 Level 3 (10V/M, 80 to 1000MHz AM & 900MHz

keyed) and European Norm EN50082-1.

Electromagnetic Interference Immunity (EMI): No output shift

will occur beyond 0.25% of span, under influence of EMI

from switching solenoids, commutator motors, & drill motors.

Electrical Fast Transient Immunity (EFT): Complies with

IEC1000-4-4 Level 3 (2KV power; 1KV signal lines) and

European Norm EN50082-1.

Electrostatic Discharge (ESD) Immunity: Complies with

IEC1000-4-2 Level 3 (8KV/4KV air/direct discharge) to the

enclosure port and European Norm EN50082-1.

Surge Immunity: Complies with IEC1000-4-5 Level 3 (2.0KV)

and European Norm EN50082-1.

Radiated Emissions: Meets or exceeds European Norm

EN50081-1 for class A equipment.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 13 -

STATUS INDICATORS

Run (Green) - Constant ON indicates power is applied and unit is

operating normally. Flashing ON/OFF indicates that unit is

performing diagnostics (first second following power-up), or

has failed diagnostics (after a few seconds).

Status (Yellow, Each Channel) - Constant ON if input is outside

of the built-in over-range limit of 10%. Flashes ON/OFF if

input at or below a specified non-zero dropout level (setting

zero dropout to 0.0% disables zero dropout detection). OFF

for normal operating conditions.

Control (Yellow, Each Channel) - ON if corresponding control

output switch is closed, OFF if switch is open.

HOST COMPUTER COMMUNICATION

Host Communication Port (SPI): IntelliPack SPI port (standard

RJ11 6-wire phone jack). See Drawing 4501-721 for location.

Configuration information is downloaded from the host

computer through one of its EIA232 serial ports. This port

must be connected to the module through an Acromag

IntelliPack Serial Port Adapter. This Serial Port Adapter

serves as an isolated interface converter between EIA232

and the IntelliPack’s SPI port.

Baud Rate (EIA232): 19.2K baud.

SOFTWARE CONFIGURATION

Units are fully reprogrammable via our user-friendly Windows

95/98 or NT IntelliPack Configuration Program (Model 5030-

881). Programmable attributes for this model are given below. A

cable (5030-902) and converter (5030-913) are required to

complete the interface (Software Interface Package 800C-SIP).

See Drawing 4501-643. Additional information can be found in

the IntelliPack Transmitter Configuration Manual (8500-570).

Input Configuration

Input - Range (Each Input): The transmitter can be configured

to accept any one of the five input range types shown below.

However, a short jumper wire must be installed between the

input “I+” and “V+” terminals to utilize current input ranges.

Input range volts and milliamperes can be scaled to

engineering units per your application (see Transmitter

Configuration).

Voltage: 0 to 10V DC, 0 to 5V DC.

Current (Jumper Required): 0-20mA, 4-20mA, or 0-1mA

DC. The 0-1mA range is not recommended for 896M units.

Input - ZDO (Zero Dropout, Each Input): Enter a zero dropout

value from 0% to 10% of input span to define the level below

which the input is assumed to be zero. Resolution is 1% of

nominal input span. Input values from 0 to this level are

treated as equivalent to zero input. The input “STATUS” LED

will blink if the input signal is at or below the zero dropout

level. Setting this to 0% disables this feature. Zero dropout

is useful for integral and totalization applications where some

residual or base output level must be ignored.

Input - ID (Optional, Each Input): Enter up to 15 alphanumeric

characters relative to the identity of the input.

Visual Input Over/Under Range Indicator (Each Input): A

yellow status LED for each channel (labeled “STATUS”) is

constant ON if the input signal is over or under range.

Visual Zero Drop Out Indicator (Each Input): A yellow status

LED for each channel (labeled “STATUS”) flashes if the input

signal is at or below the zero dropout level specified.

Output Configuration

Output - Range: Select one of three output range types as

described below:

Frequency (Hertz): In this mode, a square wave with a 50%

duty cycle is generated and its frequency is varied via the

output equation in the range of 0 to 10Hz (full-scale) to 0Hz to

10000Hz (full-scale).

Frequency Counts Per Hour (CPH): In this mode, a pulse

train from 0 to 10CPH (full-scale) to 0 to 100000CPH (full-

scale) is generated via the output equation. A minimum

pulse width from 0-255ms, as appropriate to frequency, must

also be specified (see On-Time below). Note that the

maximum frequency in counts per hour is limited to 3600

multiplied by the reciprocal of twice the on-time selected.

Duty-Cycle (%On): In this mode, a fundamental square

wave frequency is specified from 1Hz to 10KHz and the pulse

width (ON-time) of the resultant output waveform is

modulated from 0% to 100% via the output equation.

Output - On Time (Milliseconds, Frequency CPH Only): If the

Frequency Counts Per Hour Output Range is selected, then a

pulse-width on-time must be specified from 0-255ms

(accuracy is +0ms, -1ms). A default output ON pulse-width

of 50ms is assumed. An on time of 0ms will output a pulse

with a 50% duty cycle. Note that the maximum frequency in

counts per hour is limited to 3600 multiplied by the reciprocal

of twice the on-time selected.

Output - Frequency (Hertz, Frequency Duty-Cycle %On Only):

If the Frequency Duty Cycle Output Range is selected, then a

fixed frequency of 1 to 10000Hz must be specified. The duty

cycle of the pulse generated at this frequency will vary with

the input signal according.

Transmitter Configuration

Note: Refer to the examples given in the IntelliPack

Configuration Software HELP file for additional information.

Transmitter - Scaling (Each Input, Each Output): Scaled

values must be entered for each input and output to translate

the nominal zero and full-scale input and output range

endpoints, to the engineering units required by your

application. Additionally, initial output values must be

specified and take effect following power-up or a reset until

the internal calculation takes control of the output. A subset

of the output range may be used by changing the output zero

and full-scale signal values, but if you wish to use a subset of

the selected input range, you will have to extrapolate your

engineering unit values to the nominal input range endpoints

indicated, as the input zero and full-scale values are fixed per

the selected input range. Up to 8 characters may be used to

specify constants and scientific notation is supported. Up to

6 characters may be used to describe the engineering units

of the scaled input and output values. For example, a 4-

20mA input signal range may be scaled to 0 to 5000 GPM.

Note that an equation only operates on the equivalent scaled

input values. The computed output value in engineering units

is then scaled to the nominal zero and full-scale output range

endpoint values (frequency or pulse-width) for the particular

output range selected. The scaling parameters are defined

as follows:

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 14 -

Zero Engineering Units Value (Inputs and Outputs): The

zero engineering units value is the scaled input or output

value in engineering units that is to correspond to the zero

input signal value or zero output signal value.

Zero Signal Value (Inputs and Outputs): The zero signal

value is the input or output signal value in input or output

units that is to correspond to the input or output zero

engineering units value. Only the output zero signal value

can be modified, while the input zero signal value is fixed at

the minimum input range endpoint.

Full-Scale Engineering Units Value (Inputs and Outputs):

The full-scale engineering units value is the scaled input or

output value in engineering units that is to correspond to the

full-scale input signal value or full-scale output signal value.

Full-Scale Signal Value (Inputs and Outputs): The full-

scale signal value is the input or output signal value in input

or output units that is to correspond to the input or output full-

scale engineering units value. Only the output full-scale

signal value can be modified, while the input full-scale signal

value is fixed at the maximum input range endpoint.

Engineering Units (Inputs and Outputs): A text string of

up to 6 alphanumeric characters that denotes the engineering

units of the scaled input and output values.

Initial Engineering Units Value (Outputs Only): This is the

initial output value that is assumed upon power-up or

following a reset and remains in effect until replaced by the

internally calculated value. For the control outputs, any non-

zero value is true and will turn the corresponding switch ON.

Transmitter - Equation (Each Output, Each Control Output):

Up to 200 characters may be used to specify an output

equation that is the mathematical combination of the input(s),

output(s), or control output(s). A free-form equation is

entered in “in-fix” notation that uses floating-point constants,

scaled input channel variables, standard operators, functions,

logical operators, and conditional constructs (see Table 3).

Constants are single precision floating-point values (scientific

notation supported) and are limited to 8 characters. The

computed output is then scaled to output range endpoints of

frequency (Hertz or Counts Per Hour) or pulse width (%On

Time), according to your selected output range type.

Equation variables A, B, C, D, E, and F are used to represent

the scaled values of input 1, output 1, control output 1, input

2, output 2, and control output 2, respectively.

Transmitter - Show Simulator: The Show Simulator function is

used to test your equation and ensure that a correct output

response within range is produced, without having to drive

the inputs with real world signals. Slide controls are provided

to vary simulated input signals (click and drag with your

mouse). Fine control of the slide controls is also possible via

your arrow keys. Equations for both outputs and both control

outputs may also be modified to test their effect on the

simulated variables. Error checking in this area is limited and

it is up to the user to verify correct formulation for all possible

conditions of input and output. As such, use of the Show

Simulator function is highly recommended for critical control

applications.

Visual Control Output Indicator (Each Control Output): A

yellow LED for each control output provides visual status

indication of when the corresponding output switch is

conducting (LED is ON if switch is closed).

Input Calibration

Input Calibration - Low (Each Input): This value is the low

endpoint or zero of the configured input range and must

precisely match the applied input signal level upon

calibration. To calibrate, adjust your input signal to precisely

match the Low Calibration Value field entry, then press the

Low “Calibrate” button to set the Low Calibration Value.

Restrict your adjustment of the Low Calibration Value to

roughly 10% of span from the nominal low range endpoint.

Input Calibration - High (Each Input): This value is the high

endpoint or full-scale value of the configured input range and

must precisely match the applied input signal level upon

calibration. To calibrate, adjust your input signal to precisely

match the High Calibration Value field entry, then press the

High “Calibrate” button to set the High Calibration Value.

Restrict your adjustment of the High Calibration Value to

roughly 10% of span from the nominal full-scale range

endpoint. For best results, you should always calibrate the

low value first before the high value.

Input Calibration - Restore Factory Calibration (Each Input):

The IntelliPack Configuration Software provides this control to

restore a module’s original factory calibration for the

configured input range in the event that miscalibration has

occurred.

Input Calibration (Each Input, Each Range): The IntelliPack

Configuration Software can be used to calibrate available

input ranges at each input channel of this module. In

addition, the original factory calibration may optionally be

restored in the event of miscalibration.

Summary Of IntelliPack Configuration Software Capabilities

In addition to configuring all features of the module described

above, the IntelliPack Configuration Software includes additional

capabilities for testing and control of the module as follows:

 Monitors the input and output signal values and allows

polling to be turned on or off.

 Provides a “Show Simulator” function to simulate input

variations and test the programmed equation.

 Allows a configuration to be uploaded or downloaded to/from

the module. Also provides a means to rewrite a module’s

firmware if the microcontroller is replaced or a module’s

functionality is updated.

 Provides controls to separately calibrate the inputs and

restore the original factory input or output calibration in case

of error.

 Provides a control to reset a module.

 Provides a control to adjust a transmitter’s output signal

independent of the input signals (includes timed override).

 Allows optional user documentation information to be written

to the module. Documentation fields are provided for tag

number, comment, configured by, location, and identification

information. This information can also be uploaded from the

module and printed via this software.

 Allows a module’s complete configuration to be printed in an

easy to read, two-page form, including user documentation.

 Includes on-line help and context (field) sensitive help

functions.

For additional information on the IntelliPack Configuration

Software, refer to the Transmitter Configuration Manual

8500-570.

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 15 -

RTN

I2 +

RTN

I1 +

49.9

+5V

DC-

COM

V2 +

V1 +

+5V NC

COM

SW2-

SW1-

SW1+

+5V

54.9K

499K

54.9K

499K

INPUT SIGNAL CONDITIONING

AND

MULTIPLEXER

CONVERTER

POWER

CIRCUIT

MICROCONTROLLER

SWITCHER

470

36 HRTN

34 HLD1

POWER ISOLATION

32 10-36VDC

OUTPUT ISOLATION

OUTPUT 1

FRQ1

43 PUL2

SW2+

INPUTS

1.6

VOLTS

49.9

16 BIT A/D

RJ11, 6-CONDUCTOR

CIRCUIT

INPUT

OUTPUT

MICROCONTROLLER

(CHANNEL 2)

(CHANNEL 1)

10-36VDC

HLD2

INPUT ISOLATION

DC+

POWER

POWER ISOLATION

OUTPUT 2

42 FRQ2

INTERNAL PULLUPS

ARE 470 OHMS TO +5V

PUL1

CONTROL OUTPUT 1 ISOLATION

INTEGRATED EEPROM

AND SUPPORT LOGIC

MICROCONTROLLER

CONFIGURATION PORT

SCREW TERMINAL NUMBER

INPUT ISOLATIONCONTROL OUTPUT 2 ISOLATION

INPUT ISOLATION

FRONT

PANEL LED's

* INSTALL V+ TO I+

JUMPER AT INPUT

FOR CURRENT

INPUT RANGES

TRANSIENT VOLTAGE AND

NOISE SUPPRESSION DEVICES

ARE NOT SHOWN AT INPUTS.

AND FLASH MEMORY

INPUT ISOLATION

4501-741C

SERIES 896M SIMPLIFIED SCHEMATIC

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 16 -

CALIBATION COEFFICIENTS

Analog INPUT Range/Type

FILTERING

AND A/D

CONVERT

XLO

YLO

YHI

XHIXLO

Input 1-2 Cal

Value =

Cal HI

Cal LO Cal LO

Cal HI

Value =

XMTR Conf

YHIYLOXHI

XHIXLO

XLO

YHI

YLO

YHIYLO

SCALING COEFFICIENTS

X'Y

XHI

Equation:

Scaling:

OPTIONAL

ZERO DROPOUT

LDO

YHI

YLO

XHI

Y= (X-XL)[(YH-YL)/(XH-XL)] + YL

SCALE INPUT

INPUT SCALING

Input Sensor Types:

Voltage DC

Milliamperes DC

CAL INPUT

ANALOG INPUT

Y= (X-XL)[(YH-YL)/(XH-XL)] + YL

INPUT CALIBRATION

MODEL: 895M-0800 / 896M-0800

COMPUTATION TRANSMITTER

FUNCTIONAL BLOCK DIAGRAM

SCALING COEFFICIENTS

XLO YHIYLOXHI

YLO

YHI

CONT2

CONT1

OUT2

OUT1

COMPUTATION

XLO XHI

OUTPUT BLOCK

CONTROLLER 1

COUNTER/TIMER

Output Range Limits:

0 to 10 KHz,

10 to 36000 CPH,

0 to 100% Duty Cycle.

FREQ 1

OUTPUT

FREQ 2

OUTPUT

CONTROLLER 2

COUNTER/TIMER

CONTROL OUTPUT BLOCK

SW1+

CONTROL

OUTPUT

SWITCH 1

CONTROL

OUTPUT

SWITCH 2

SW2+

4501-743A

Output 1 Range/Type

SCALE OUTPUT

Output 2 Range/Type

Y= (X-XL)[(YH-YL)/(XH-XL)] + YL

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 17 -

RJ11 PLUG

9-PIN CONNECTOR (DB9S)

CONFIGURATION

CONNECTOR AT THE

MATES TO THE DB9P

SOFTWARE

ACROMAG

HOST PC RUNNING

DINP

SCLK

RST

COM

+5V

RJ11 PLUG

(6 CONDUCTOR)

896M MODULE

INTELLIPACK

(6 CONDUCTOR)

HOST COMPUTER.

SERIAL PORT OF THE

DOUT

RJ11 JACK

(REFERRED TO AS REVERSE TYPE)

CONFIGURATION PORT: FOR

INTELLIPACK

CABLE SCHEMATIC

MODEL 5030-913

MODEL 5030-902

SERIAL PORT ADAPTER

TO INTELLIPACK CABLE

MODULE CONFIGURATION

(SEE USER'S MANUAL).

SERIAL ADAPTER

(COM PORTS ARE SOFTWARE CONFIGURED)

ATTACH ADAPTER TO COM1 OR COM2 ON THE PC.

SERIES 895/896M COMPUTER CONNECTIONS

6 FOOT CABLE

RUN/PWR LED (GREEN)

6 FEET OF CABLE

USB MALE

DB9

RS232

USB SERIAL CONVERTER 4001095

LED

TO HOST USB PORT

HOST

USB

TO HOST RS232 SERIAL PORT

HOST

RS232

DB9

HOST RS232 SERIAL

PORT CONNECTOR OR

USB CONNECTOR AT

BACK OF PC

ATTACH ADAPTER 5030-913 TO USB ADAPTER 4001095, OR

STATUS

TB4

POWER

TB1

CONTROL

10 TO 36VDC

CHANNEL 1 & 2 STATUS AND

CONTROL LED's (YELLOW)

RUN

Acromag

HOST OS IS WINDOWS

4501-747B

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 18 -

4501-744C

42 35

TB1

STATUS

CONTROL

FRQ1

FRQ2

TB3

HLD1

I1+

I2+

TB2

11 13

TB4

46 44

TB1

16 21

41 36

TB4

2524

3233

HOLD2 HOLD1

RTN

V2+

RTN

V1+

RTN

TB1

INPUT 1

OUT 1

PUL1

COM

INPUT 2

OUT 2

HRTN

COM

CONT 2

POWER

EARTH

(MA)

NOTE 1

I2+

I1+

I2+

V2+

I1+

V1+

TB1

V1+

RTN

V2+

RTN

SW1+

SW2+

SW2-

LOAD LOAD

(PLUG-IN TYPE)

(SEE USER'S MANUAL).

CONFIGURATION PORT: FOR

TB2

14 22

TB3 GROUND

10 TO 36VDC

CURRENT

REMOVABLE

TERMINAL BLOCKS

MODULE CONFIGURATION

TB1

RUN/PWR LED (GREEN)RUN

TB4

Acromag

COUNTER

CONT 1

PUL2

HLD2

HOLD

POWER

OPTIONAL OUTPUT HOLD CONTROLS

MAY COMPROMISE SAFETY AND PERFORMANCE. SAFETY GUIDELINES MAY REQUIRE THAT THIS DEVICE

DC CURRENT INPUT (mA)

DC VOLTAGE INPUT (UNIPOLAR OR BIPOLAR)

VOLTAGE

SOURCE

MODEL 896M-0800

SW1-

(SEE CONNECTIONS AT RIGHT)

BE HOUSED IN AN APPROVED METAL ENCLOSURE OR SUB-SYSTEM, PARTICULARLY FOR APPLICATIONS

ELECTRICAL CONNECTIONS

WITH VOLTAGES GREATER THAN OR EQUAL TO 75VDC/50VAC.

PLACE AS SHOWN IN THIS DRAWING. FAILURE TO ADHERE TO SOUND WIRING AND GROUNDING PRACTICES

OUTPUT TO DIGITAL COUNTERS

MODEL 896M INPUT CONNECTIONS

AT CHANNEL 1 OF 2 (896M-0800)

CABLE IS RECOMMENDED AS SHOWN. ADDITIONALLY, THE APPLICATION OF EARTH GROUND MUST BE IN

WARNING: FOR COMPLIANCE TO APPLICABLE SAFETY AND PERFORMANCE STANDARDS, THE USE OF SHIELDED

JUMPER CONNECTS OPEN-DRAIN

OUTPUT TO INTERNAL PULLUP.

INTERNAL PULLUP IS 470 OHMS TO +5V.

REMOVE JUMPER FOR EXTERNAL PULLUP.

CHANNEL STATUS AND

CONTROL LED's (YELLOW)

OPEN-DRAIN OUTPUTS MAY USE AN

EXTERNAL PULLUP SUPPLY TO +60V.

LIMIT DRAIN CURRENT TO 1A MAX.

FOR BEST RESULTS, OUTPUTS

SHOULD BE GROUNDED.

TIP: FOR LOW-CURRENT APPLICATIONS SUCH AS

DRIVING SIMPLE LOGIC LEVEL INPUTS, A 50 OHM

RESISTOR CONNECTED IN SERIES WITH THE

OUTPUT WILL SIGNIFICANTLY REDUCE THE

NEGATIVE EFFECTS OF GROUND BOUNCE IN THE

OUTPUT SIGNAL TRANSITIONS.

INPUT CONNECTIONS

CONT1 & CONT2 ARE ISOLATED OUTPUT SWITCHES

(1 FORM A SWITCHES). OBSERVE PROPER POLARITY

WHEN MAKING CONNECTIONS. LIMIT VOLTAGE TO

60V DC MAX AND CURRENT TO 0.5A MAX.

HOLD IS ASSERTED LOW AND WILL HOLD

THE FREQUENCY OUTPUT AT THE LAST

VALUE. HOLD IS PULLED UP INTERNALLY.

WITH HOLD DEASSERTED (HIGH

OR OPEN), THE OUTPUT WILL

TRACK INPUT CHANGES.

DO NOT CONNECT HOLD INPUT

RETURN (HRTN) TO EARTH GROUND.

SHIELDED CABLE

NOTE: A JUMPER MUST BE INSTALLED

BETWEEN "I+" AND "V+" FOR CURRENT

INPUT SIGNALS.

CURRENT JUMPER

SHIELDED

CABLE

NOTE 1: THIS GROUND CONNECTION IS RECOMMENDED FOR BEST RESULTS, IF SENSORS ARE

INHERENTLY CONNECTED TO GROUND, USE CAUTION AND AVOID MAKING ADDITIONAL

GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR.

INPUTS SHARE RETURN AND ARE NOT ISOLATED CHANNEL TO CHANNEL. INPUT RETURN (RTN) AND

HOLD INPUT RETURN (HRTN) SHOULD NEVER BE TIED TOGETHER. BE CAREFUL WHEN MAKING

GROUND CONNECTIONS THAT INPUT (RTN) AND HOLD (HRTN) ARE NOT BOTH TIED TO EARTH GROUND.

45 42

FRQ1

FRQ2

TB4

46 44 41

OUT 1

COM

OUT 2

COM

FREQ2

INTERNAL +5V

470 OHM

OUTPUT1

OUTPUT2

* *

DO NOT USE INTERNAL

PULLUP JUMPER IF

WIRING TO EXTERNAL

PULLUPS AS SHOWN

ext

SIMPLIFIED INTERNAL CIRCUIT AT OUTPUT

FREQ1

OUTPUTS ARE OPEN-DRAIN

AND MUST BE PULLED-UP

OPEN-DRAIN

OUTPUTS

INTERNAL

PULLUPS

ext IS 60V MAX

ext IS 1A MAX

ext 60 OHM MIN

OUTPUT DETAIL

MODEL 896M-0800 SHOWN.

MODEL 895M-0800 IS SIMILAR,

BUT WITH ONE CHANNEL ONLY.

MODEL

896M-0800

MODEL

896M-0800

MODEL

896M-0800

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 19 -

RUN

Acromag

STATUS

CONTROL

3.75

(95.3)

4.68

2.34

(59.4)

"T" RAIL DIN MOUNTING

DIN EN 50022, 35mm

(118.9)

SCREWDRIVER SLOT FOR

REMOVAL FROM "T" RAIL

3.90

(99.1)

4.35

(110.5)

4501-745A

(26.7)

1.05

NOTE: ALL DIMENSION ARE IN INCHES (MILLIMETERS)

ENCLOSURE DIMENSIONS

INTELLIPACK TRANSMITTER

IntelliPack Series 895M/896M Frequency Transmitter User's Manual DC Voltage/Current Input

__________________________________________________________________________________________

- 20 -

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