Omega i Series User manual

Process/Strain Gauge Controller Manual
CNiS8, CNiS8C,
CNiS8DH, CNiS8DV,
CNiS16, CNiS16D, CNiS32
e-mail: [email protected]
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User’s Guide

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves
the right to alter specifications without notice.
Servicing North America:
U.S.A. Omega Engineering, Inc.
Headquarters: 800 Connecticut Ave. Suite 5N01, Norwalk, CT 06854
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [email protected]
For Other Locations Visit omega.com/worldwide
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TABLE OF CONTENTS
Part 1: Introduction............................................................................................2
1.1 Description .................................................................................2
1.2 Safety Considerations ...............................................................3
1.3 Before You Begin .......................................................................4
Part 2: Setup.......................................................................................................5
2.1 Front Panel .................................................................................5
2.2 Rear Panel Connections............................................................5
2.3 Electrical Installation .................................................................7
2.3.1 Power Connections........................................................7
2.3.2 Process Current .............................................................8
2.3.3 Process Voltage..............................................................8
2.3.4 Strain Gauge ...................................................................9
2.3.5 Wiring Outputs - Wiring Hookup.................................10
Part 3: Operation: Configuration Mode .........................................................13
3.1 Introduction ..............................................................................13
Turning your Instrument On for the First Time
Buttons Functions in Configuration Mode
3.2 Menu Configuration ................................................................14
3.2.1 ID Number .....................................................................15
3.2.2 Set Points Menu ...........................................................16
3.2.3 Configuration Menu ....................................................17
3.2.4 Input Type Menu ...........................................................17
3.2.5 Reading Configuration Menu .....................................19
3.2.6 Input/Reading (Scale and Offset) Menu ....................22
3.2.7 Alarm 1 Menu................................................................26
3.2.8 Analog Output (Retransmission) Menu......................30
3.2.9 Alarm 2 Menu................................................................33
3.2.10 Loop Break Time Menu................................................34
3.2.11 Output 1 Menu ..............................................................36
3.2.12 Output 2 Menu ..............................................................43
3.2.13 Ramp and Soak Menu ..................................................46
3.2.14 ID Code Menu ...............................................................48
3.2.15 Communication Option Menu .....................................50
3.2.16 Display Color Selection Menu.....................................56
Part 4: Specifications ......................................................................................59
Part 5: Factory Preset Values .........................................................................62
CE APPROVAL INFORMATION .......................................................................64
i

LIST OF FIGURES:
Figure 2.1 Front Panel Display .....................................................................5
Figure 2.2 Rear Panel Power and Output Connections .............................5
Figure 2.3 Rear Panel Input Connections ...................................................6
Figure 2.4 Main Power Connections............................................................7
Figure 2.5 Process Current Wiring Hookup ................................................8
Process Voltage
Figure 2.6 a) Process Voltage with Sensor Excitation ...........................8
b) Process Voltage without Sensor Excitation .....................8
Strain Gauge
Figure 2.7 a) 4-Wire Voltage Input with Internal Excitation....................9
b) 4-Wire Bridge Input with External Excitation....................9
Figure 2.8 a) 6-Wire Voltage Input with Internal Excitation....................9
b) 6-Wire Bridge Input with External Excitation....................9
Figure 2.9 4-Wire Voltage Input with Internal Excitation..........................10
Wiring Outputs
Figure 2.10 a) Mechanical Relay and SSR Outputs Wiring Hookup .....10
b) Pulse and Analog Outputs Wiring Hookup .....................10
Figure 2.11 Snubber Circuits Wiring Hookup .............................................10
Figure 2.12 a) RS-232 Output Wiring Hookup .........................................11
b) RS-485 Outputs Wiring Hookup .......................................11
Figure 2.13 Typical Applications ..................................................................12
Figure 2.14 a) Excitation Outputs ............................................................12
b) Top View Location of S2 ...................................................12
c) Top View Location of S2 on 1/8DIN Compact Unit ...........12
Figure 3.1 Flow Chart for ID and Setpoints Menu ....................................14
Figure 3.2 Flow Chart for Configuration Menu .........................................17
Figure 3.3 Flow Chart for Input Type Menu...............................................17
Figure 3.4 Flow Chart for Reading Configuration Menu ..........................19
Figure 3.5 Flow Chart for Alarm 1 Menu....................................................26
Figure 3.6 Flow Chart for Analog Output (Retransmission) Menu..........30
Figure 3.7 Flow Chart for Alarm 2 Menu....................................................33
Figure 3.8 Flow Chart for Loop Break Time Menu....................................34
Figure 3.9 Flow Chart for Output 1 Menu ..................................................36
Figure 3.10 Flow Chart for Output 2 Menu ..................................................43
Figure 3.11 Flow Chart for Ramp and Soak Menu......................................46
Figure 3.12 Flow Chart for ID Code Menu ...................................................48
Figure 3.13 Flow Chart for Communication Option Menu .........................50
Figure 3.14 Flow Chart for Display Color Selection Menu.........................56
LIST OF TABLES:
Table 2.1 Front Panel Display .....................................................................5
Table 2.2 Rear Panel Connector .................................................................6
Table 2.3 Fuse Requirements .....................................................................7
Table 2.4 Jumper Connections.................................................................12
Table 3.1 Button Function in Configuration Mode..................................13
Table 3.2 Conversion Table.......................................................................23
Table 3.3 Input Resolution Multiplier .......................................................23
Table 5.1 Factory Preset Values ...............................................................62
ii

NOTES, WARNINGS and CAUTIONS
Information that is especially important to note is identified by following labels:
• NOTE
• WARNING or CAUTION
• IMPORTANT
• TIP
NOTE: Provides you with information that is important to successfully
setup and use the Programmable Digital Meter.
CAUTION or WARNING: Tells you about the risk of electrical shock.
CAUTION, WARNING or IMPORTANT: Tells you of circumstances or
practices that can effect the instrument’s functionality and must refer to
accompanying documents.
TIP: Provides you helpful hints.
1

PART 1
INTRODUCTION
1.1 Description
This device can be purchased as monitor (read process value only) or as
a controller.
• The i Series Strain and Process controllers can measure a wide variety of
DC voltage and current inputs for all common load cells, pressure
transducers and strain gauge type of transducer. It offers unparalleled
flexibility in process control. The voltage /current inputs are fully scaleable to
virtually all engineering units, with selectable decimal point, perfect for use
with pressure, flow or other process input.
• The process control can be achieved by using on/off or PID control strategy.
Control can be optimized with an Auto Tune feature. The controller offers a
ramp to set point with timed soak period before switching off the output.
• The i Series controller features a large, three color programmable display
with capability to change a color every time when Alarm is triggered. The
standard features include dual outputs with relay, SSR, DC pulse, analog
voltage or current, built-in excitation for transducers, selectable as
10V @ 60 mA or 5 V @ 40 mA. Analog output is fully scaleable and may be
configured as a proportional controller or retransmission to follow your
display. Universal power supply accepts 90 to 240. Low voltage power option
accepts 24 Vac or 12 to 36 Vdc.
• Options include programmable RS-232 or RS-485 serial communication and
ethernet with an embedded web server.
2

1.2 Safety Considerations
This device is marked with the international caution symbol. It is
important to read this manual before installing or commissioning this
device as it contains important information relating to Safety and EMC
(Electromagnetic Compatibility).
This instrument is a panel mount device protected in accordance with
EN 61010-1:2001, electrical safety requirements for electrical equipment
for measurement, control and laboratory. Installation of this instrument
should be done by qualified personnel. In order to ensure safe operation,
the following instructions should be followed.
This instrument has no power-on switch. An external switch or circuit-
breaker shall be included in the building installation as a disconnecting
device. It shall be marked to indicate this function, and it shall be in close
proximity to the equipment within easy reach of the operator. The switch
or circuit-breaker shall not interrupt the Protective Conductor (Earth wire),
and it shall meet the relevant requirements of IEC 947–1 and IEC 947-3
(International Electrotechnical Commission). The switch shall not be
incorporated in the main supply cord.
Furthermore, to provide protection against excessive energy being
drawn from the main supply in case of a fault in the equipment, an
overcurrent protection device shall be installed.
• Do not exceed voltage rating on the label located on the top of the
instrument housing.
• Always disconnect power before changing signal and power
connections.
• Do not use this instrument on a work bench without its case for safety
reasons.
• Do not operate this instrument in flammable or explosive
atmospheres.
• Do not expose this instrument to rain or moisture.
• Unit mounting should allow for adequate ventilation to ensure
instrument does not exceed operating temperature rating.
• Use electrical wires with adequate size to handle mechanical strain
and power requirements. Install without exposing bare wire outside
the connector to minimize electrical shock hazards.
EMC Considerations
• Whenever EMC is an issue, always use shielded cables.
• Never run signal and power wires in the same conduit.
• Use signal wire connections with twisted-pair cables.
• Install Ferrite Bead(s) on signal wires close to the instrument if EMC
problems persist.
Failure to follow all instructions and warnings may result in injury!
3

1.3 Before You Begin
Inspecting Your Shipment:
Remove the packing slip and verify that you have received everything
listed. Inspect the container and equipment for signs of damage as soon
as you receive the shipment. Note any evidence of rough handling in
transit. Immediately report any damage to the shipping agent. The carrier
will not honor damage claims unless all shipping material is saved for
inspection. After examining and removing the contents, save the packing
material and carton in the event reshipment is necessary.
Customer Service:
If you need assistance, please call the nearest Customer Service
Department, listed in this manual.
Manuals, Software:
The latest Operation and Communication Manual as well as free
configuration software and ActiveX controls are available at the website
listed on the cover page of this manual or on the CD-ROM enclosed
with your shipment.
For first-time users: Refer to the QuickStart Manual for basic operation
and set-up instructions.
If you have the Serial Communications/Ethernet Option you can easily
configure the controller on your computer or on-line.
To Disable Outputs:
To ensure that menu changes are properly stored, Standby Mode should
be used during setup of the instrument. During Standby Mode, the
instrument remains in a ready condition, but all outputs are disabled.
Standby Mode is useful when maintenence of the system is necessary.
When the instrument is in "RUN" Mode, push dtwice to disable all
outputs and alarms. It is now in "STANDBY" Mode. Push donce more
to resume "RUN" Mode.
PUSH dTWICE to disable the system during an EMERGENCY.
To Reset the Meter:
When the controller is in the "MENU" Mode, push conce to direct
controller one step backward of the top menu item.
Push ctwice to reset controller, prior to resuming "Run" Mode except
after "Alarms", that will go to the "Run" Mode without resetting the
controller.
4

PART 2
SETUP
2.1 Front Panel
Figure 2.1 Front Panel Display
Table 2.1 Front Panel Annunciators
1Output 1/Setpoint 1/ Alarm 1 indicator
2Output 2/Setpoint 2/ Alarm 2 indicator
a/MENU Changes display to Configuration Mode and advances
through menu items*
b/PK/GRS Used in Program Mode and Peak or Gross Recall*
c/TARE Used in Program Mode and to tare your reading*
d/ENTER Accesses submenus in Configuration Mode and stores
selected values*
* See Part 3 Operation: Configuration Mode
2.2 Rear Panel Connections
The rear panel connections are shown in Figures 2.2 and 2.3.
Figure 2.2 Rear Panel Power and Output Connections
1/8DIN 1/32 DIN 1/16 DIN
5
8 7 6 5 4 3 2 1
6 5 4 6 5 4 6 5 4 3 2 1 3 2 1
Refer to the Quick Start
Guide for assembly and
disassembly instructions.

Figure 2.3 Rear Panel Input Connections
Table 2.2 Rear Panel Connector
POWER AC/DC Power Connector: All models
INPUT Input Connector:
All models PR (Process) / ST (Strain)
OUTPUT 1 Based on one of the following models:
Relay SPDT
Solid State Relay
Pulse
Analog Output (Voltage and Current)
OUTPUT 2 Based on one of the following models:
Relay SPDT
Solid State Relay
Pulse
OPTION Based on one of the following models:
RS-232C or RS-485 programmable
Excitation
6

2.3 Electrical Installation
2.3.1 Power Connections
Caution: Do not connect power to your device until you have completed all
input and output connections. Failure to do so may result in injury!
Connect the main power connections as shown in Figure 2.4.
Figure 2.4 Main Power Connections
Table 2.3 Fuse Requirements
FUSE Connector Output Type For 115 Vac For 230 Vac DC
FUSE 1 Power * N/A 100 mA(T) 100 mA(T) 100 mA(T)
FUSE 2 Power * N/A N/A N/A 400 mA(T)
For the low voltage power option, in order to maintain the same degree of
protection as the standard high voltage input power units (90 - 240 Vac),
always use a Safety Agency Approved DC or AC source with the same
Overvoltage Category and pollution degree as the standard AC unit (90 -
240 Vac).
The Safety European Standard EN61010-1 for measurement, control,
and laboratory equipment requires that fuses must be specified based on
IEC127. This standard specifies for a Time-lag fuse, the letter code “T”.
The above recommended fuses are of the type IEC127-2-sheet III. Be
aware that there are significant differences between the requirements
listed in the UL 248-14/CSA 248.14 and the IEC 127 fuse standards. As a
result, no single fuse can carry all approval listings. A 1.0 Amp IEC fuse
is approximately equivalent to a 1.4 Amp UL/CSA fuse. It is advised to
consult the manufacturer’s data sheets for a cross-reference.
7

2.3.2 Process Current
The figure below shows the wiring hookup for Process Current 0 – 20 mA.
Figure 2.5 Process Current Wiring Hookup
(Internal and External Excitation)
2.3.3 Process Voltage
The figure below shows the wiring hookup for Process Voltage 0 – 100 mV,
0 – 1 V, 0 – 10 V.
Figure 2.6
a) Process Voltage Wiring Hookup b) Process Voltage Wiring Hookup
with Sensor Excitation without Sensor Excitation
RL- Voltage limited resistor, which allows to convert 24 Vdc internal excitation
voltage to the appropriate process input value. For instance: if the potentiometer
value is equal to 10 kΩ, the minimum RLis 14 kΩfor 10 V process input.
When configuring your instrument, select Process Type in the Input Type Menu
(see Part 3).
8

2.3.4 Strain Gauge
The figure below shows the wiring hookup for 4-wire bridge input.
Figure 2.7
a) 4-Wire Voltage/Bridge Input b) 4-Wire Bridge Input with
with Internal Excitation External Excitation Wiring
Wiring Hookup Hookup
In 4-Wire connections the voltage drop across long excitation lead wires of strain
gauge bridge may cause measurement errors. The output of a strain gauge
bridge also depends on the stability of excitation voltage. To correct for voltage
drop and changes in excitation voltage, 6-wire input configuration and ratio
measurement are used.
In order for the Ratiometric to work properly, the External Excitation should
not drop below 4.6 Vdc.
The figure below shows 6-wire hookup for 6-wire bridge input.
Figure 2.8
a) 6-Wire Bridge Input with b) 6-Wire Bridge Input with
Internal Excitation and External Excitation and
Ratio Measurement Wiring Ratio Measurement Wiring
Hookup Hookup
9

2.3.4 Strain Gauge (continued)
The figure below shows Voltage (bridge with
amplified output) input with internal excitation.
Where:
+S: signal plus
-S: signal return
+Ext: excitation plus
-Ext: excitation return
+E: plus excitation sense
-E: minus excitation sense.
2.3.5 Wiring Outputs
This meter has two, factory installed, outputs. The SPDT Mechanical Relay, SPST
Solid State Relay, Pulse and Analog Output Connection are shown below.
Figure 2.10 a) Mechanical Relay and SSR b) Pulse and Analog
Outputs Wiring Hookup Outputs Wiring Hookup
10
Figure 2.9
4-Wire Voltage Input (Bridge
withAmplified Output)
with Internal Excitation.
Figure 2.11 Snubber
Circuits Wiring Hookup
This device has snubber circuits
designed to protect the contacts of the
mechanical relays when it switches
inductive loads (i.e. solenoids, relays). These
snubbers are internally connected between the
Common (C) and Normally Open (NO) relay
contacts of Output 1 and Output 2.
If you have an inductive load connected
between Common (C) and Normally Closed
(NC) contacts of the mechanical relays and you
want to protect them from the rush current
during the switching period, you have to connect
an external snubber circuit between Common
(C) and Normally Closed (NC) contacts as
indicated in the figure below.

2.3.5 Wiring Outputs (continued)
This device may also have a programmable communication output. The RS-232
and RS-485 Output Connection are shown below.
If your meter has the communication option, the internal excitation is not
available. Use external excitation for strain gauge meter.
External RS-232 connections are not available with -EI or C4EI options.
Figure 2.12
a) RS-232 Output Wiring Hookup b) RS-485 Output Wiring Hookup
11
TEMPERATURE
CONTROLLER CONTROL
SIDE
dc INPUT
SSR
ac INPUT
SSR
ac INPUT
SSR
LOAD
SIDE HEATER
Vac
Vac
dc CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH dc VOLTAGE SSR DRIVER OUTPUT
FAST BLOW
FUSE
0 or 5 Vdc,
TYPICALLY
4
3
1
2
TEMPERATURE
CONTROLLER CONTROL
SIDE
LOAD
SIDE HEATER
Vac
Vac
ac CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH MECHANICAL RELAY OUTPUT
FAST BLOW
FUSE
Vac
DRIVING
SSR
4
3
1
2
TEMPERATURE
CONTROLLER
CONTROL SIDE
LOAD
RESISTOR LOAD
SIDE HEATER
Vac
Vac
ac CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH TRIAC OUTPUT
FAST BLOW
FUSE
Vac
DRIVING
SSR
4
3
1
2
Figure 2.13 Typical Applications

2.3.5 Wiring Outputs (continued)
This meter is capable of supplying 5 or 10 Vdc sensor excitation. The excitation
output connection and location of S2 pin selection jumper are shown below.
Excitation is not available if Serial Communication (-C24) or Ethernet
(-C4EI) or Low Voltage Power Supply (-DC) options are installed.
Figure 2.14
a) Excitation Output b) Top View Location of S2
c) Top View Location of S2 on 1/8DIN Compact Unit
Install jumpers according to the table below.
Table 2.4 Jumper Connections
Excitation Output S2
AB
10 V Close Open
5 V Open Close
Factory default is 10 V.
12

PART 3
OPERATION: CONFIGURATION MODE
3.1 Introduction
The instrument has two different modes of operation. The first, Run Mode, is
used to display values for the Process Variable, and to display or clear Peak
and Valley values. The other mode, Menu Configuration Mode, is used to
navigate through the menu options and configure the controller. Part 3 of this
manual will explain the Menu Configuration Mode. For your instrument to
operate properly, the user must first "program" or configure the menu options.
Turning your Controller On for the First Time
The device becomes active as soon as it is connected to a power source. It
has no On or Off switch. The device at first momentarily shows the software
version number, followed by reset RST, and then proceeds to the Run Mode.
For first-time users: Refer to the QuickStart Manual for basic operation
and set-up instructions.
If you have the Serial Communications/Ethernet Option you can easily
configure the controller on your computer or on-line.
Table 3.1 Button Function in Configuration Mode
•ToentertheMenu,theusermustfirstpress
abutton.
•Usethisbuttontoadvance/navigatetothenextmenuitem.Theusercannavigate
through all the top level menus by pressing a.
•Whileaparameterisbeingmodified,press
ato escape without saving the parameter.
•Presstheup
bbutton to scroll through “flashing” selections. When a numerical
value is displayed press this key to increase value of a parameter that is currently
being modified.
•Holdingthe
bbutton down for approximately 3 seconds will speed up the rate at
which the set point value increments.
• In the Run Mode press bcauses the display to flash the PEAK or GROSS value –
press again to return to the Run Mode.
•Pressthedown
cbutton to go back to a previous Top Level Menu item.
•PressthisbuttontwicetoresetthecontrollertotheRunMode.
•Whenanumericalvalueisflashing(exceptsetpointvalue)press
cto scroll digits
from left to right allowing the user to select the desired digit to modify.
•Whenasetpointvalueisdisplayedpress
cto decrease value of a setpoint that is
currently being modified. Holding the cbutton down for approximately 3 seconds
will speed up the rate at which the setpoint value is decremented.
•IntheRunModepressccauses the display to flash the TARE value to tare your
reading (zeroing). Press again to return to the Run Mode.
•Presstheenterdbutton to access the submenus from a Top Level Menu item.
•Pressdto store a submenu selection or after entering a value — the display will
flash a STRD message to confirm your selection.
•ToresetflashingPeakorValleypressd.
•IntheRunMode,pressdtwice to enable Standby Mode with flashing STBY.
Reset: Except for Alarms, modifying any settings of the menu configuration
will reset the instrument prior to resuming Run Mode.
a
MENU
b
PK/GRS
(UP)
c
TARE
(DOWN)
d
ENTER
13

3.2 Menu Configuration
It is required that you put the controller in the Standby Mode for any
configuration change other than Set Points & Alarms.
Figure 3.1 Flow Chart for ID and Set Points Menu
14

3.2.1 ID Number Menu
SEE ID MENU SELECTION IN CONFIGURATION SECTION FOR
ENABLE/DISABLE OR CHANGE ID CODE.
If ID Code is Disabled or set as Default (0000) the menu will skip ID step
to Set Point Menu.
If ID Code is set to Full Security Level and user attempts to enter the
Main Menu, they will be prompted for an ID Code.
If ID Code is set to Setpoint/ID Security Level and user attempts to enter
the Configuration Menu, they will be prompted for an ID Code.
ENTERING YOUR NON-DEFAULT FULL SECURITY ID NUMBER.
Press a1) Display shows ID.
Press d2) Display advances to ____.
Press b& c3) Press bto increase digit 0-9. Press cto activate next digit
(flashing). Continue to use band cto enter your 4-digit ID code.
Press d4) If the correct ID code is entered, the menu will advance to the
Setpoint 1 Menu, otherwise an error message ERRo will be
displayed and the instrument will return to the Run Mode.
To change ID Code, see ID Menu in the Configuration section.
ENTERING YOUR NON-DEFAULT SETPOINT/ID SECURITY ID NUMBER.
Press a5) Display shows SP1 Setpoint 1 Menu.
Press a6) Display shows SP2 Setpoint 2 Menu.
Press a7) Display shows ID ID Code Menu.
Press d8) Display advances to ____.
Press b& c9) Use band cto change your ID Code.
Press d10) If correct ID Code is entered, the display will advance to the
INPT Input Menu, otherwise the error message ERRo will be
displayed and the controller will return to the Run Mode.
To prevent unauthorized tampering with the setup parameters, the
instrument provides protection by requiring the user to enter the ID Code
before allowing access to subsequent menus. If the ID Code entered
does not match the ID Code stored, the controller responds with an error
message and access to subsequent menus will be denied.
Use numbers that are easy for you to remember. If the ID Code is
forgotten or lost, call customer service with your serial number to access
and reset the default to 0000.
15

3.2.2 Set Points Menu
SETPOINT 1:
Press a1) Press a, if necessary until SP1 prompt appears.
Press d2) Display shows previous value of “Setpoint 1” with 1st digit
flashing.
Press b& c3) Press band cto increase or decrease Setpoint 1
respectively.
Holding b& cbuttons down for approximately 3 seconds will speed up the
rate at which the set point value increments or decrements.
Press b& c 4) Continue to use band cto enter your 4-digit Setpoint 1 value.
Press d5) Display shows STRD stored message momentarily and then
advance to SP2 only, if a change was made, otherwise press a
to advance to SP2 Setpoint 2 Menu.
SETPOINT 2:
Press d6) Display shows previous value of “Setpoint 2” with 1st digit
flashing.
Press b& c7) Press band cto increase or decrease Setpoint 2
respectively.
Holding b& cbuttons down for approximately 3 seconds will speed up
the rate at which the setpoint value increments or decrements.
Press d8) Display shows STRD stored message momentarily and then
advances to
CNFG
only, if a change was made, otherwise press a
to advance to
CNFG
Configuration Menu.
16