Contrec 515 CB01 Installation manual

Model 515 Flow Computer
Operation Manual
Application CB01
Blending Controller
for
Volumetric Frequency Flowmeters
18 May 2007

Model 515 Flow Computer - Operation Manual
© Contrec Pty Ltd 2006
The instructions given herein cover the general description, installation, operation and maintenance of the subject
equipment. Contrec Pty. Ltd. reserves the right, without prior notice, to make engineering refinements that may not
be reflected in this manual.
Should any questions arise which cannot be answered specifically by this manual, they should be directed to
Contrec Pty Ltd for further detailed information and technical assistance.
Contrec Pty. Ltd. will not accept any liability for either direct or consequential damages resulting from the use or
misapplication of the contents of this manual.
Part of the software embedded in this product is eCos - Embedded Configurable Operating System, a trademark of
Red Hat. Portions created by Red Hat are Copyright © 1998, 1999, 2000 Red Hat, Inc.
(http://www.redhat.com). All rights reserved
The software in this product was in part provided by Red Hat and any express or implied warranties, including, but
not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no
event shall the author be liable for any direct, indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business
interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including
negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such
damage.
Contrec Pty Ltd
22 Hall Street Hawthorn East, Melbourne 3123 AUSTRALIA
Tel: [phone] Fax: [phone]
Email: [email protected]
Contrec - USA, LLC
916 Belcher Drive Pelham AL 35124 USA
Tel: [phone] Fax: [phone]
Email: [email protected]
Contrec Europe Limited
PO Box 436 Sowerby Bridge, West Yorkshire HX6 3YA, UK
Tel: [phone] Fax: [phone]
Email: [email protected]
Website: www.contrec.com.au
Publication No: 515-CB01-OM - 18 May 2007

515 CB01 - 18 May 2007 iii
Safety Notice
The information in this safety notice is for the prevention of injury to personnel and
damage to the instrument.
The manufacturer assumes no liability for injury or damage caused by misuse of the
instrument or for modifications made to the instrument.
Qualified Personnel
The instrument must be installed, operated and serviced by persons who have been properly
trained and authorised. Personnel must read and understand this manual prior to installation and
operation of the instrument.
Static Hazard
The 500 series flow computer uses high speed CMOS circuitry which is sensitive to static
damage. The user should observe accepted safety practices for handling electronic devices,
especiallyduringservicing.Oncetheunitis installed, grounded and interconnected,the chances
of static damage are greatly reduced.
Voltage Hazard
Before connecting power to the instrument, ensure that the supply voltage for the AC or DC
input is suitable. The AC voltage rating is as stated on the serial number plate. Personnel should
take all due care to avoid electric shock.
Welding Hazard
Do not perform electric welding in close proximity to the instrument or its interconnecting
cables. If welding in these areas must be performed, disconnect all cables from the instrument.
Failure to do so may result in damage to the unit.
Moisture Hazard
To avoid electrical faults and corrosion of the instrument, do not allow moisture to remain in
contact with the instrument.
515 CB01 - 18 May 2007

iv 515 CB01 - 18 May 2007

v
1 Introduction
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Displayed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Main Menu Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Isolated Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Specifications
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Installation
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Frequency Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Logic Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4-20mA Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pulse Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Control Relays (Alarms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
RC Network for Interference Suppression . . . . . . . . . . . . . . . . . . . . . . 12
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Infra-red Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
RS-485 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Earthing and Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Operation
Normal Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Default Variable & Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Status Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Contents
515 CB01- 18 May 2007

vi 515 CB01- 18 May 2007
Front Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Main Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Peak Flowrates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Setting the Batch Preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Model Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Blending Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ON-OFF Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PRESET Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Typical Blending Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Resetting Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Logic Input Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Digital Control Valve Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Blending Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Instrument Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Calibration View Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Calibration Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing the Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Calibration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Time Settings and Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
General Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6 Communications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Hardware Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Simple ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Requests Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Instrument Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Corrupted or Invalid Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Modbus RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
List of Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

515 CB01- 18 May 2007 vii
Printer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Types of Printouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Printer Data Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Appendix A Glossary
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Appendix B Model Numbers
Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Custom Version Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Application Information Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Appendix C Units of Measurement
Available Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

viii 515 CB01- 18 May 2007

ix515 CB01- 18 May 2007
List of Figures
1 Typical Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 500 Series Instrument Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . 7
3 Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Logic Inputs Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Output 4-20mA Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . 11
6 Output Pulse Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Relay Connection Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 RS-485 Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9 Blending Operation in ON-OFF Mode . . . . . . . . . . . . . . . . . . . . . . 21
10 Blending Operation in PRESET Mode . . . . . . . . . . . . . . . . . . . . . . 22
11 Calibration Menu Tree Sheet 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 28
12 Calibration Menu Tree Sheet 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 29
13 RS-232 Cable Connections to a Computer . . . . . . . . . . . . . . . . . . . . 48
14 RS-485 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

x515 CB01- 18 May 2007

1
Chapter 1
Introduction
Features •Tailored for volumetric frequency flow input
•Pump demand contact
•Selection of various modes of operation
•Process line control via DCV (digital control valve)
•Remote PERMISSIVE input to control delivery’s state
•PRESET and FLUSH volume parameters to automatically adjust ratio
setpoint
•Allows for non-linear correction
•Storage of 1000 transactions with time and date stamp
•Selection of second language and user tags
•Infra-red communications port on front panel
•Pulse width and scaling of pulse output
•4-20mA retransmission
•Selectable protocols on serial ports including Modbus RTU and Printer
output
•Front panel adjustment of 8-24V DC output voltage
•Backlit display with LCD backup
Overview
The 515 CB01 application is a blending controller measuring the volume
flow in a main and process lines using frequency flow inputs.
The blending controller can operate in PRESET, ON-OFF (manual) and
RELEASE mode of operation. The latest mode allows for easier tuning of
the control loop.
The main and process flows are used to determine the net volume flow. The
operator can view the ratio of totals as well as the ratio of flow rates.
The control of the process flow is via a digital control valve. The flowrate
deadband and control responsiveness can be adjusted to reduce wear on
valves.
515 CB01 - 18 May 2007

Introduction
2515 CB01 - 18 May 2007
Calculations
Blend Point Location.
The controller caters for blending points before and after the main
flowmeter. The process flow is a ratio of the net (combined) flow (0 to 80%
range).
During delivery the ratio setpoint is modified to cater for the flush volume:
Displayed Information
The front panel display shows the current values of the input variables and
the results of the calculations.
The instrument can be supplied with a real-time clock for storage of up to
1000 transactions with time and date stamps.
Main Menu Variables
Ratio% Pflow
Netflow
----------------- 100×=
SPratio(mod.) Pratio Preset
Preset Flush–
-----------------------------------
⋅=
Main Menu
Variables Default Units Variable Type
Net Volume Ltr Total
Net Flowrate Ltr/min Rate
Main Line Volume Ltr Total
Main Line Flowrate Ltr/min Rate
Process Line Volume Ltr Total
Process Line Flowrate Ltr/min Rate
Volumetric Ratio % Rate
Flowrate Ratio % Rate
Flowrate Deviation Ltr/min Rate

Introduction
515 CB01 - 18 May 2007 3
Refer to Available Units of Measurement on page 72 for the list of
available units.
Communications
There are three communication ports available as follows:
•RS-232 port
•RS-485 port
•Infra-red port (on front panel)
The ports are available for remote data reading, printouts and for initial
application loading of the instrument.
Isolated Outputs
The opto-isolated outputs can re-transmit any main menu variable. Totals
are output as pulses and rates are output as 4-20mA signals. Alternatively,
the outputs can be configured to provide application specific digital signals
like flow error, pump demand, etc.
Relay Outputs
The relay outputs 3 and 4 control the blending flow via a digital control
valve. The relay output 2 provides a pump demand contact and the relay 1
can be used as a fully programmable alarm for any rate type variable.
Software Configuration
The instrument can be further tailored to suit specific application needs
including units of measurement, custom tags, second language or access
levels. A distributor can configure these requirements before delivery.
Instrument parameters including units of measurement can be programmed
in the field, according to the user access levels assigned to parameters by the
distributor.
All set-up parameters, totals and logged data are stored in non-volatile
memory with at least 30 years retention.

Introduction
4515 CB01 - 18 May 2007
Figure 1 Typical Application Diagram
Approvals
This instrument conforms to the EMC-Directive of the Council of European
Communities 89/336/EEC and the following standards:
•Generic Emission Standard EN 50081-1 Residential, Commercial &
Light Industry Environment.
•Generic Emission Standard EN 50081-2 Industrial Environment.
•Generic Immunity Standard EN 50082-1 Residential, Commercial &
Light Industry Environment.
•Generic Immunity Standard EN 50082-2 Industrial Environment.
In order to comply with these standards, the wiring instructions in Chapter
3 - Installation must be followed.
Main Flow
Digital
Control Valve
Frequency
Input 1
Process Flow Flowmeters
DCV
Output
Frequency
Input 2
Example of
blending
control

5
Chapter 2
Specifications
General Inputs
Outputs
Operating Environment
Temperature -20°C to +60°C (conformal coating)
+5°C to +40°C (no coating)
Humidity 0 to 95% non condensing (conformal
coating)
5% to 85% non condensing (no coating)
Power Supply 95...135 V AC or 190...260 V AC or
12...28 V DC
Consumption Typically 6W
Protection Sealed to IP65 (Nema 4X) when panel
mounted
Dimensions 147mm (5.8") width
74mm (2.9") height
167mm (6.6") depth
Display
Type Backlit LCD with 7-digit numeric display
and 11-character alphanumeric display
Digits 15.5mm (0.6") high
Characters 6mm (0.24") high
LCD Backup Last data visible for 15min after power
down
Update Rate 0.3 second
Non-volatile Memory
Retention > 30 years
Data Stored Setup, Totals and Logs
Approvals
Interference compliance
Enclosure ATEX, FM, CSA and SAA approved
enclosures available for hazardous areas
Real Time Clock
Battery Type 3 volts Lithium button cell (CR2032)
Battery Life 5 years (typical)
Frequency Input (General)
Range 0 to 10kHz
Overvoltage 30V maximum
Update Time 0.3 sec
Cutoff frequency Programmable
Configuration Pulse, coil or NPS input
Non-linearity Up to 10 correction points
Pulse
Signal Type CMOS, TTL, open collector, reed switch
Threshold 1.3 volts
Coil
Signal Type Turbine and sine wave
Sensitivity 15mV p-p minimum
NPS
Signal Type NPS sensor to Namur standard
Logic Inputs
Signal Type CMOS, TTL, open collector, reed switch
Overvoltage 30V maximum
Relay Output
No. of Outputs 2 mechanical relays plus 2 solid state
relays
Voltage 250 volts AC, 30 volts DC maximum
(solid state relays use AC only)
Current 3A maximum
515 BCB01 - 18 May 2007

Specifications
6515 BCB01 - 18 May 2007
Important: Specifications are subject to change without notice.
Communication Ports
Ports RS-232 port
RS-485 port
Infra-red port
Baud Rate 2400 to 19200 baud
Parity Odd, even or none
Stop Bits 1 or 2
Protocols ASCII, Modbus RTU, Printer
Transducer Supply
Voltage 8 to 24 volts DC, programmable
Current 70mA @ 24V, 120mA @ 12V maximum
Protection Power limited output
Isolated Output
No. of Outputs 2 configurable outputs
Configuration Pulse/Digital or 4-20mA output
Pulse/Digital Output
Signal Type Open collector
Switching 200mA, 30 volts DC maximum
Saturation 0.8 volts maximum
Pulse Width Programmable: 10, 20, 50, 100, 200 or
500ms
4-20mA Output
Supply 9 to 30 volts DC external
Resolution 0.05% full scale
Accuracy 0.05% full scale (20°C)
0.1% (full temperature range, typical)

7
Chapter 3
Installation
Panel Mounting
The instrument should be located in an area with a clean, dry atmosphere
that is also relatively free of shock and vibration.
The standard mounting procedure is panel mounting in a cutout that is
139mm wide by 67mm high. Two side clips secure the unit into the panel.
Figure 2Figure 2 shows the panel mounting requirements for the 500 Series
Instrument.
Figure 2 500 Series Instrument Panel Mounting
145mm
Side View
22mm
70mm
67mm
139mm
25mm
66mm
Min. 189mm
Panel Cut-out
Front
Panel
74mm
Mounting Clip
138mm
147mm
Rear Connectors Top View RS232
Port
515 CB01 - 18 May 2007

Installation
8515 CB01 - 18 May 2007
Electrical Connection
Rear Panel Connections
Figure 3 shows the connections on the rear panel of the instrument.
Figure 3 Rear Panel Connections
Terminal Designations
RS232 Port
CAUTION
MAINS
ENA
AC MAINS
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
RC R1 R2 R3 R4
RELAYS
+ - G1+2+3+4+C- + - + -
RS485 LOGIC INPUT OUT1 OUT2
123456789101112131415161718
FINP SG EXC V AINP1 AINP2 AINP3 AINP4 Vo G Vi SH
1+2+-1+2+3++-+-+-+-+-+E
Terminal Label Designation Comment
1 FINP 1+ Frequency Input 1+ Main flow input
2 FINP 2+ Frequency Input 2+ Process flow input
3 SG - Signal ground
4 EXC V 1+ Excitation Term 1+ Not used
5 EXC V 2+ Excitation Term 2+ Not used
6 EXC V 3+ Excitation Term 3+ Not used
7AINP1 + Analog input ch 1 (+) Not used
8 - Analog input ch 1 (-)
9AINP2 + Analog input ch 2 (+) Not used
10 - Analog input ch 2 (-)
11 AINP3 + Analog input ch 3 (+) Not used
12 - Analog input ch 3 (-)
13 AINP4 + Analog input ch 4 (+) Not used
14 - Analog input ch 4 (-)
15 Vo + 8-24 volts DC output Overload protected
16 G - DC Ground
17 Vi + DC power input DC power in 12-28V
18 SH E Shield terminal
EAC
MAINS
E Mains ground AC power in 95-135V or
190-260V
N N Mains neutral
A A Mains active
19
RS485
+ RS485 (+)
Modbus RTU control20 - RS485 (-)
21 G RS485 ground
22
LOGIC
INPUTS
1+ Switch 1 Permissive Input
23 2+ Switch 2
24 3+ Switch 3
25 4+ Switch 4
26 C- Signal ground
27 OUT 1 + Output ch 1 (+)
28 - Output ch 1 (-)
29 OUT 2 + Output ch 2 (+)
30 - Output ch 2 (-)
31
RELAYS
RC Relay common
32 R1 Relay 1 Alarm
33 R2 Relay 2 Pump demand
34 R3 Relay 3 (DCV Open) Digital control valve
35 R4 Relay 4 (DCV Hold)
RS232 port 9-pin serial port
Terminal Label Designation Comment

Installation
515 CB01 - 18 May 2007 9
Inputs
Frequency Input Connection
Connect pulse or frequency input signals from devices such as: TTL,
CMOS, open collector, reed relay switch, coil and Namur proximity switch,
as shown below. For better signal integrity, it is recommended to use
shielded cable. Refer to Terminal Designations on page 8 for specific
terminal numbers for this application.
Squarewave, CMOS or TTL
Open Collector
Reed Relay Switch
Coils - with 15 millivolts peak to peak AC minimum
Namur Proximity Switch
18 Shield
Signal Ground
3
Frequency
Input
(FINPn)
+
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
NPN PNP
+V
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
~
18
Signal Ground
Shield
3
Frequency
Input
(FINPn)
+
15 Vo +8V DC
18 Shield
NPS
Frequency
Input
(FINPn)
+

Installation
10 515 CB01 - 18 May 2007
Logic Input Connection
These inputs are designed to be connected to CMOS, TTL, open collector
signals or a voltage free contact switch. A minimum activation time of
300ms is required to guarantee reading of an input.
It is possible to read the status of all the logic inputs via a Modbus register
even if they are not used for a control purpose in the application.
A remote push-button key can be connected to the Logic Inputs as shown
below. Resetting Totals on page 23 describes the function of the inputs.
Figure 4 Logic Inputs Connection Diagram
Outputs
The advanced option for the instrument provides two opto-isolated output
ports. Either or both can be used for 4-20mA or pulse outputs.
CAUTION
Due to the dual-purpose nature of the outputs, take care not to
set the output as an open collector pulse type signal when
connected to a 4-20mA loop circuit.
4-20mA Output Connection
Figure 5 shows the connections for a 4-20mA output. Output channel 1 uses
terminals 27 (+) and 28 (-), output channel 2 uses terminals 29 (+) and 30 (-).
Maximum Load Resistance = (Supply-9) / 0.02 ohms
C-
23
Logic Input
22
24
25
26
1+
2+
3+
4+
Signal Ground