Akytec PRM 3 Series User manual

PRM-x.3_3-EN-59334-1.12
© All rights reserved
Subject to technical changes and misprints
akytec GmbH - Vahrenwalder Str. 269 A - 30179 Hannover - Germany Tel.: [phone] - www.akytec.de
PRM-x.3
Analog I/O extension module
User guide

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akytec GmbH - Vahrenwalder Str. 269 A - 30179 Hannover - Germany Tel.: [phone] - www.akytec.de
Contents
Introduction .............................................................................................................................2
1 Overview ...............................................................................................................................3
1.1 Intended use .................................................................................................................3
1.2 Ordering code ...............................................................................................................3
1.3 Front indicators..............................................................................................................4
2 Specifications .......................................................................................................................5
2.1 Environmental conditions ...............................................................................................7
2.2 Galvanic isolation ..........................................................................................................7
3 Installation ............................................................................................................................8
3.1 Internal bus ...................................................................................................................8
3.2 Terminal block layout .....................................................................................................9
3.2.1 Resistance thermometer.....................................................................................10
3.2.2 Thermocouple....................................................................................................10
3.2.3 I/U sensors ........................................................................................................10
3.2.4 Resistance sensor.............................................................................................. 11
3.2.5 Output wiring ..................................................................................................... 11
4 Configuration ......................................................................................................................12
5 Firmware update .................................................................................................................14
6 Calibration ..........................................................................................................................15
6.1 Input calibration ...........................................................................................................15
6.2 Output calibration ........................................................................................................16
7 Maintenance........................................................................................................................18
8 Transportation and storage.................................................................................................19
9 Scope of delivery ................................................................................................................20
Appendix A. Dimensions .......................................................................................................21

Introduction
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Introduction
Terms and abbreviations
–ALP – programming software akYtec ALP for programming PR series relays, based on Function
Block Diagram (FBD) programming language.
–Application – user program created using ALP software.
–ADC – analog-digital converter.
–DAC – digital-analog converter.
Warning notice system
Explanation of the symbols and keywords used:
WARNING
DANGER indicates an imminent dangerous situation that will result in death or serious
injuries if not prevented.
CAUTION
CAUTION indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
NOTICE indicates a potentially dangerous situation that could result in damage to
property.
NOTE
NOTE indicates helpful tips and recommendations, as well as information for efficient and
trouble-free operation.

1 Overview
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1 Overview
PRM extension module provides additional inputs and outputs for the basic device PR200. The
module inputs and outputs are controlled by a program running on PR200. To enable control, the
module should be added to the PR200 configuration in ALP (sect. 4).
The module is a passive device and cannot be used without connection with the basic device over
internal bus.
All modifications are designed in a plastic enclosure for DIN rail mounting.
Each PRM module is powered independently of the basic device. The basic device and the modules
can be operated with different supply voltages.
1.1 Intended use
Extension modules of PRM series have been designed and built solely for the intended use
described in this manual, and may only be used accordingly. The technical specifications contained
in this manual must be observed.
The module may be operated only in properly installed condition.
Improper use
Any other use is considered improper. Especially to note:
– This device should not be used for medical devices which receive, control or otherwise affect
human life or physical health.
– The device should not be used in an explosive environment.
– The device should not be used in an atmosphere with chemically active substance.
1.2 Ordering code
Supply voltage I/O
230 –230 (94…264) V AC 1–8 DI, 8 DO
24 –24 (19…30) V DC 3–4 AI, 2 AO
Fig. 1.1 Front view

1 Overview
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1.3 Front indicators
Table 1.1 LED indicators
Indicator Color State Value
POWER Green ON Power on
ERROR Red Flashing
No communication with the basic device
Device model does not match the model specified in the project
The firmware version of the basic device and the module are
incompatible
AI Yellow
ON Parameter Sensor type selected and sensor connected
OFF
Parameter Sensor type is set to OFF.
The current input value in the program is replaced with the value
55555.
Flashing Sensor fault (Table 1.2)
AO Yellow
ON Parameter Output signal type selected
OFF Parameter Output signal type is set to OFF
Flashing
Output fault:
– No output voltage supply
– DAC high temperature
– Load break in current mode
Table 1.2 Analog inputs fault codes
Code Description
33333 Short circuit
44444 Sensor break
66666 Input value is outside the ADC valid range
77777 Input value is outside the sensor valid range
88888 Cold junction sensor fault

2 Specifications
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2 Specifications
Table 2.1 General specification
Device PRM-230.3 PRM-24.1
Power supply 230 (90…264) V AC;
50 (47…63) Hz 24 (19 … 30) V DC
Power consumption, max. 8 VA 4 W
Galvanic isolation 2300 V 510 V
Inputs Digital —
Analog 4
Outputs Digital —
Analog 2
IP Code IP20
Operation temperature -20…+55 °C
Relative humidity up to 80 % (at +25 °C, non-condensing)
Dimensions 88 × 90 × 58 mm
Mounting DIN rail (35 mm)
Weight approx. 250 g
Table 2.2 Analog inputs
Input signal see Table 2.4
ADC resolution 16 bit
Accuracy
RTD 0.25 %
TC 0.5 %
I / U signals 0.25 %
Temperature influence 0.5% / 10 °C
Sampling
time for one
input, max.
RTD 0.8 s
TC 0.6 s
I / U signals 0.6 s
Analog input resistance, min. 10 kΩ
External resistance for current measurement 45…50 Ω
Galvanic isolation —
Table 2.3 Analog outputs
Signal types for actuator control
0-20 mA
4-20 mA
0-24 mA
0-5 V
0-10 V
DAC resolution 12 bit
Accuracy ± 0.5 %
Temperature influence ± 0.25 %
Galvanic isolation between outputs (sect.
2.2)510 V
Voltage supply (external, each output
separately) 15…30 V DC
Output load
(max.)
0-20 mA, 4-20 mA, 0-24 mA 1000 Ω
0-5 V, 0-10 V 300 Ω

2 Specifications
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Table 2.4 Sensors and input signals
Sensor or input signal Measurement range Accuracy
Resistive signals
0…3950 Ω 0…100% ±0.25
Standard I / U signals
0-1 V 0…100 %
±0.25 %
-50…50 mV 0…100 %
0-5 mA 0…100 %
0-20 mA 0…100 %
4-20 mA 0…100 %
RTD according to IEC 60751:2008
Pt50 (α=0.00385 °С -1)-200…+850 °С
±0.25 %
Pt100 (α=0.00385 °С -1)-200…+850 °С
Pt500 (α=0.00385 °С -1)-200…+850 °С
Pt1000 (α=0.00385 °С -1)-200…+850 °С
RTD according to GOST 6651-2009 and 6551-94
50P (α=0.00391 °С -1)-240…+1100 °С
±0.25 %
50M (α=0.00428 °С -1)-200…+200 °С
Cu50 (α=0.00426 °С-1)-50…+200 °С
100P (α=0.00391 °С -1)-240…+1100 °C
100M (α=0.00428 °С -1)-200…+200 °C
Cu100 (α=0.00426 °С -1)-50…+200 °С
Ni100 (α=0.00617 °С -1))-60…+180 °C
500P (α=0.00391 °С -1)-240…+1100 °C
500М (α=0.00428 °С -1)-200…+200 °С
Cu500 (α=0.00426 °С -1)-50…+200 °С
Ni500 (α=0.00617 °С -1)-60…+180 °С
1000P (α=0.00391 °С -1)-240…+1100 °C
1000М (α=0.00428 °С -1)-200…+200 °С
Cu1000 (α=0.00426 °С -1)-50…+200 °С
Ni1000 (α=0.00617 °С -1)-60…+180 °С
TC according to IEC 60584-1:20131
J -200…+1200 °С
±0.5 %
N -200…+1300 °С
K -200…+1360 °С
S -50…+1750 °С
R -50…+1750 °С
T -250…+ 400 °С
B +200…+1800 °С
A-1 0…+ 2500 °С
TC according to GOST 8.585
L -200…+800 °С
±0.5 %
A-2 0…+1800 °С
A-3 0…+1800 °С

2 Specifications
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2.1 Environmental conditions
The device is designed for natural convection cooling. It should be taken into account when
choosing the installation site.
The following environment conditions must be observed:
– clean, dry and controlled environment, low dust level
– closed non-hazardous areas, free of corrosive or flammable gases
Conditions Permissible range
Ambient operating temperature -20…+55°C
Storage temperature -25…+55°C
Relative humidity up to 80% (at +25°C, non-condensing)
Altitude up to 2000 m above sea level
EMC immunity conforms to IEC 61000-6-2
EMC emission conforms to IEC 61000-6-4
2.2 Galvanic isolation
Fig. 2.1 Galvanic isolation PRM-230 (a) and PRM-24 (b)

3 Installation
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3 Installation
WARNING
Electric shock could kill or seriously injure.
All electrical connections must be performed by a fully qualified electrician.
Ensure that the mains voltage matches the voltage marked on the nameplate.
Ensure that the device is provided with its own power supply line and electric fuse.
CAUTION
The device must be powered off before connecting to internal bus or peripheral
devices. Switch on the power supply only after the wiring of the device has been
completed.
Remove the terminal blocks only after powering off the device and all connected
equipment.
Do not feed any external devices from the power contacts of the device.
NOTICE
Supply voltage for 24 VDC models may not exceed 30 V. Higher voltage can damage
the device.
If the supply voltage is lower than 19 VDC, the device cannot operate properly but will
not be damaged.
NOTICE
Signal cables should be routed separately or screened from the supply cables.
Shielded cable should be used for the signal lines to ensure the EMC precautions.
NOTE
Before switching on, make sure that the device was stored at the specified ambient
temperature (-20 … +55 °C) for at least 30 minutes.
The extension module of PRM series are mounted on DIN rail to the right of the PR200 basic device.
Fig. 3.1
After mounting on DIN-rail, an internal bus connection between PR200 and the module should be
implemented (sect. 3.1). Then the power supply and the peripheral devices should be connected to
the module terminal blocks (sect. 3.2).
For dimension drawing see Appendix A..
3.1 Internal bus
An internal high-speed bus provides the same high-speed performance of the module that of the
basic device. It allows reading of the input values and writing of the output values of the module
within one program cycle.
The PRM modules are connected to PR200 in series. Maximum two modules can be connected. To
implement the internal bus, connect PRM to PR200, using the supplied 4.5 cm flat cable.
PRM has two EXT connectors located under the right and left covers on the device front. The
connector under the left cover is used to connect the 1st PRM to PR200 or the 2nd PRM to the 1st
one. The connector under the right cover is used to connect PR200 to the 1st PRM or the 1st PRM
to the 2nd one.

3 Installation
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When connected, the flat cable should be placed in a special recess under the cover to enable PRM
to be pushed close to PR200 (Fig. 3.2).
Fig. 3.2
3.2 Terminal block layout
For terminal block layout see Fig. 3.3 and 3.4.
For terminal assignment see Tab. 3.1
Fig. 3.3 PRM-24.3 terminal block layout Fig. 3.4 PRM-230.3 terminal block layout
Table 3.1 Terminal assignment
Marking Description Marking Description
DC 24 V / -
or AC 230 V Power supply AO1 / V+ 24 VDC supply AO1+
DC 24 V / +
or AC 230 V Power supply AO1 / V- 24 VDC supply AO1-
AI1 / 1 AI1 terminal 1 AO1 / U+ Voltage output AO1+
AI1 / 2 AI1 terminal 2 AO1 / U- Voltage output AO1-
R AI1 / AI2 common terminal AO1 / I+ Current output AO1+
AI2 / 2 AI2 terminal 1 AO1 / I- Current output AO1-
AI2 / 1 AI2 terminal 2 AO2 / V- 24 VDC supply AO2+
AI3 / 1 AI3 terminal 1 AO2 / V+ 24 VDC supply AO2-
AI3 / 2 AI3 terminal 2 AO2 / U+ Voltage output AO2+
R AI3 / AI4 common terminal AO2 / U- Voltage output AO2-
AI4 / 2 AI4 terminal 1 AO2 / I+ Current output AO2+
AI4 / 1 AI4 terminal 2 AO2 / I- Current output AO2-

3 Installation
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3.2.1 Resistance thermometer
2- or 3-wire sensors can be connected.
Fig. 3.5 RTD wiring
3.2.2 Thermocouple
NOTICE
Do not use a TC with not insulated hot junction. It can damage the module.
Сold junction compensation is provided for using with thermocouples. The built-in cold junction
temperature sensor is placed next to the terminal block.
Fig. 3.6 TC wiring
3.2.3 I/U sensors
Voltage signal can be connected directly to the input terminals.
Fig. 3.7 I/U sensor wiring
To measure a current signal a shunt resistance of 50 Ω (±1%) has to be connected in parallel (see
Fig. 3.8). It is recommended to use resistance included in the package or other high-stable
resistance.

3 Installation
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Fig. 3.8 Shunt resistance connection
You can connect a resistor 45…50 Ω, whose value should be noted in the properties of the input in
ALP. It is recommended to calibrate the input with the shunt (sect. 4)
NOTICE
It is necessary to provide safe contact between signal wires and resistor wires.
Otherwise the input can be damaged.
3.2.4 Resistance sensor
Fig. 3.9 Resistance sensor wiring
3.2.5 Output wiring
The analog outputs are galvanically isolated. Each output can be powered separately if necessary.
The negative contacts V-, U- and I- of different outputs are interconnected inside the device.
Fig. 3.10 Current output wiring
Fig. 3.11 Voltage output wiring

4 Configuration
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4 Configuration
To add a module to the basic device configuration:
1. Open a PR200 project in ALP.
2. Open Device configuration.
3. Select the item ‘Extension modules’ in the structure tree.
4. Add PRM module using the context menu (Fig. 4.1)
Fig. 4.1
The parameter Extension number (Fig. 4.2) is the position of PRM, when counting from left to right
from PR200. The next module to the left of PR200 should be added to the configuration first to be
assigned as No.1. The next added module is always assigned as No.2. If there is no module
assigned as No.1, a new module cannot be assigned as No.2.
Fig. 4.2
Data exchange between PR200 and PRM No.2 is carried out
through PRM No. 1. If PRM No.1 is powered off, the data
exchange between PR200 and PRM No.2 is interrupted.
PRM can be removed from the project only after disconnecting
all the variables assigned to its inputs and outputs.
The position of PRM in the configuration can be changed using
the context menu.
The project can be transferred to PR200 irrespective of whether
the modules are connected or not.
When a module is added to configuration, additional inputs AI1...
AI4 and outputs AO1...AO2 with the module number in brackets
appear in the workspace (Fig. 4.3).
When a module is added to the project, its inputs and outputs
become available for polling.
To read the inputs or change the status of the outputs, create
variables of the appropriate type and associate them with
module I/Os. If it is necessary to sample the module I/Os over
the network, they have to be associated with network variables.
Fig. 4.3

4 Configuration
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Table 4.1 Module parameters
Parameter Description
Common
Status
Select a BOOL variable to read the status:
– TRUE, if the communication with PRM is established and the PRM
model is the same as the specified in the configuration
– FALSE, if the communication with PRM is lost or the PRM model differs
from that specified in the configuration
Inputs
Sensor type
The type of sensor connected to the inputs. The input value will be
converted into the unit corresponding to the sensor type (for example, with
RTD or thermocouple, the input values will be converted into degrees
Celsius).
The default setting OFF means that the input is disabled and will not be
sampled. The setting OFF for unused channels increases the sampling
rate.
Filter time
constant 0…65 seconds, 0 – filter disabled
Shunt resistor External current measurement resistor 45…50 Ω
Lower measuring
limit Minimum level of sensor output signal
Upper measuring
limit Maximum level of sensor output signal
Outputs
Safe state Output signal in case of loss of communication with the basic device
Output signal The type of output signal determines the calibration coefficients used for
signal conversion

5 Firmware update
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5 Firmware update
If a new project is loaded into the device and the firmware of the device and extension module are
incompatible, the connection between them will be interrupted and the red ERROR indicator on the
module will flash.
To update firmware:
1. Connect the module to the basic device over internal bus.
2. Connect the basic device to the PC.
3. Switch on the power supplies of the basic device and the module.
4. Start ALP and select the menu item Device > Firmware updater.
5. Click No in the opened dialog to select the module manually.
6. Open the tab Extension modules, select the extension number and the device model and
confirm with Select
NOTICE
Ensure reliable power supply of the basic device and modules during the update. If it
failed, the update should be probably repeated.

6 Calibration
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6 Calibration
If the accuracy of the input or output of the module is no longer in accordance with the specification,
it can be calibrated. The module must be connected to the basic device to be calibrated. The
calibration is carried out the same way as with the basic device.
NOTICE
Ensure reliable power supply of the basic device and modules during the calibration. If
it fails, the calibration should be repeated.
Each analog input and output has its own calibration coefficients for each sensor type.
Calibration is performed using a reference signal source connected to the device input or output.
The calibration coefficients are calculated based on the ratio between the current input signal and
the reference signal and stored in the non-volatile device memory.
If the calculated coefficients go beyond the permissible limits, a message about the error cause will
be displayed.
6.1 Input calibration
Input signals: 4-20 mA, 0-10 V, 0-4000 Ω.
To calibrate input:
1. Connect the reference signal source to the input (Fig. 6.1).
Fig. 6.1 Connection of the reference signal source to an input
2. Connect the module to the basic device over internal bus.
3. Connect the basic device to the PC.
4. Switch on the power supplies of the basic device and the module.
5. Start ALP and select the menu item Device > Calibration to start the calibration tool.
6. Select the appropriate PRM model in the dialog window.
7. Select Analog inputs as calibration target.
8. Select the type of input signal and other calibration parameters (Fig. 6.2).

6 Calibration
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Fig. 6.2 Parameter configuration
Set the three points for calibration curve and the filter time constant. The greater the filter time
constant, the longer the calibration process will take, but the more accurate calculation of the
coefficients will be achieved.
Select the input to calibrate. If you select All, all inputs will be calibrated sequentially, therefore
the appropriate reference signal has to be applied to all inputs.
9. Click Next and follow the instructions.
Click the item Reset settings to use the default calibration settings.
6.2 Output calibration
To calibrate output:
1. Connect the reference signal source according to Fig. 6.3 or 6.4 to the output.
Fig. 6.3 Connection of the current reference signal source to an output (RL< 300 Ω)
Fig. 6.4 Connection of the voltage reference signal source to an output
2. Connect the module to the basic device over internal bus.

6 Calibration
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3. Connect the basic device to the PC.
4. Switch on the power supplies of the basic device and the module.
5. Start ALP and select the menu item Device > Calibration to start the calibration tool.
6. Select the appropriate PRM model in the dialog window.
7. Select Analog outputs as calibration target.
8. Select the type of output signal and the output to be calibrated. If you select All, all outputs will be
calibrated sequentially, so the appropriate reference signal has to be applied to all outputs.
9. Measure the signal on the output indicated in the upper right window corner, enter the value in
the input field.
Fig. 6.5 Lower limit calibration
10.Click Next and follow the instructions.

7 Maintenance
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7 Maintenance
WARNING
Cut off all power before maintenance.
The maintenance includes:
– cleaning of the housing and terminal blocks from dust, dirt and derbis
– checking the device fastening
– checking the wiring (connecting leads, fastenings, mechanical damage)
NOTICE
The device should be cleaned with a damp cloth only. No abrasives or solvent-
containing cleaners may be used.

8 Transportation and storage
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8 Transportation and storage
Pack the device in such a way as to protect it reliably against impact for storage and transportation.
The original packaging provides optimum protection.
If the device is not taken immediately after delivery into operation, it must be carefully stored at a
protected location. The device should not be stored in an atmosphere with chemically active
substances.
Permitted storage temperature: -25...+55 °C
NOTE
The device may have been damaged during transportation.
Check the device for transport damage and completeness!
Report the transport damage immediately to the shipper and akYtec GmbH!