W.E.ST. MDR-133-U Guide

Technical Documentation
MDR-133-U
MDR-133-P
Pressure control module

Page 2 of 42 MDR-133-*-2030 29.08.2019
CONTENTS
1General Information.......................................................................................................................................... 4
1.1 Order number...........................................................................................................................................4
1.2 Scope of supply........................................................................................................................................4
1.3 Accessories..............................................................................................................................................4
1.4 Symbols used...........................................................................................................................................5
1.5 Using this documentation..........................................................................................................................5
1.6 Legal notice..............................................................................................................................................5
1.7 Safety instructions....................................................................................................................................6
2Characteristics................................................................................................................................................. 7
2.1 Compatibility.............................................................................................................................................8
2.2 Device description....................................................................................................................................9
3Use and application........................................................................................................................................ 10
3.1 Installation instructions............................................................................................................................10
3.2 Typical system structure .........................................................................................................................11
3.3 Method of operation................................................................................................................................11
3.4 Commissioning.......................................................................................................................................12
4Technical description...................................................................................................................................... 13
4.1 Input and output signals..........................................................................................................................13
4.2 LED definitions.......................................................................................................................................14
4.3 Circuit diagram.......................................................................................................................................15
4.4 Typical wiring .........................................................................................................................................16
4.5 Connection examples .............................................................................................................................16
4.6 Technical data........................................................................................................................................17
5Parameters.................................................................................................................................................... 18
5.1 Parameter overview................................................................................................................................18
5.2 Configuration..........................................................................................................................................19
5.2.1 LG (Changing the language)........................................................................................................... 19
5.2.2 MODE (Switching between parameter groups)................................................................................ 19
5.2.3 SENS (Malfunction monitoring)....................................................................................................... 19
5.2.4 CDWIN (Control deviation window)................................................................................................. 20
5.2.5 EOUT (Output signal: READY = OFF)............................................................................................. 20
5.3 Input signal adaptation............................................................................................................................21
5.3.1 SYS_RANGE (Sytem pressure)...................................................................................................... 21
5.3.2 SIGNAL (Type of input) .................................................................................................................. 21
5.3.3 N_RANGE:X (Nominal pressure of the sensor) ............................................................................... 21
5.3.4 OFFSET:X (Sensor offset).............................................................................................................. 22
5.3.5 Using of the commands SYS_RANGE, N_RANGE:X and OFFSET:X .............................................. 22
5.4 Ramp function........................................................................................................................................23
5.4.1 RA (Command signal ramp times) .................................................................................................. 23
5.5 Closed loop control parameters...............................................................................................................24
5.5.1 PID controller................................................................................................................................. 24
5.5.2 Integrator control function............................................................................................................... 25
5.6 Output signal adaptation.........................................................................................................................26
5.6.1 MIN (Deadband compensation) ...................................................................................................... 26
5.6.2 MAX (Output scaling) ..................................................................................................................... 26
5.6.3 TRIGGER (Response threshold for the MIN parameter) .................................................................. 26
5.6.4 SIGNAL:U (Type and polarity of the output signal)........................................................................... 27
5.7 Special commands................................................................................................................................. 28
5.7.1 TS (Sample time)........................................................................................................................... 28
5.7.2 AINMODE (Input scaling mode)...................................................................................................... 28

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5.7.3 AIN (Analogue input scaling)...........................................................................................................28
5.8 PROCESS DATA (Monitoring).................................................................................................................29
6Appendix........................................................................................................................................................30
6.1 Failure monitoring...................................................................................................................................30
6.2 Troubleshooting......................................................................................................................................31
6.3 Description of the command structure......................................................................................................33
7ADDITIONAL INFORMATION: Power output stage .........................................................................................34
7.1 General function .....................................................................................................................................34
7.2 Device description...................................................................................................................................35
7.3 Inputs and outputs ..................................................................................................................................36
7.4 Circuit diagram........................................................................................................................................36
7.5 Typical wiring..........................................................................................................................................37
7.6 Technical data........................................................................................................................................37
7.7 Parameters.............................................................................................................................................39
7.7.1 Parameter overview........................................................................................................................39
7.8 Changed parameters from U-version.......................................................................................................39
7.8.1 SIGNAL:U (Polarity of the output signal)..........................................................................................39
7.8.2 SIGNAL:M (Type of the monitor output signal).................................................................................39
7.9 Parameter description of the power stage................................................................................................40
7.9.1 CURRENT (Rated output current)...................................................................................................40
7.9.2 DFREQ (Dither frequency)..............................................................................................................40
7.9.3 DAMPL (Dither amplitude) ..............................................................................................................40
7.9.4 PWM (PWM Frequenz)...................................................................................................................41
7.9.5 ACC (Current loop ato adjustment ).................................................................................................41
7.9.6 PPWM (Solenoid current controller P element)................................................................................41
7.9.7 IPWM (Solenoid current controller I element)...................................................................................41
8Notes.............................................................................................................................................................42

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1 General Information
1.1 Order number
MDR-133-U
1
-2030
2
- with programmable output (0… 10 V or 4… 20 mA) and analogue sensor interface
MDR-133-P-2030 - with additional power output stage up to 2,6 A (see additional information)
Alternative Products
MDR-137-P-2030 - with integrated power stage up to 2,6 A and analogue interface
1.2 Scope of supply
The scope of supply includes the module plus the terminal blocks which are part of the housing.
The Profibus plug, interface cables and further parts which may be required should be ordered separately.
This documentation can be downloaded as a PDF file from www.w-e-st.de.
1.3 Accessories
WPC-300 - Start-Up-Tool (downloadable from our homepage –products/software)
1
Compared with older versions (ordering code Afor voltages output and Ifor current output) the code U(universal) is
used for programmable outputs.
2
The number of the version consists of the hardware version (first two digits) and the software version (last two digits).
Because of the development of the products these numbers can vary. They are not strictly necessary for the order. We will
always deliver the newest version.

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1.4 Symbols used
General information
Safety-related information
1.5 Using this documentation
Structure of the documentation:
The standard product is descibed up to chapter 6. The extensions like POWER STAGE or SSI-INTERFACE
are described in the chapters ADDITIONAL INFORMATION.
1.6 Legal notice
W.E.St. Elektronik GmbH
Gewerbering 31
D-41372 Niederkrüchten
Tel.: [phone]
Fax.: [phone]
Home page: www.w-e-st.de or www.west-electronics.com
EMAIL: [e-mail]
Date: 29.08.2019
The data and characteristics described herein serve only to describe the product. The user is required to
evaluate this data and to check suitability for the particular application. General suitability cannot be inferred
from this document. We reserve the right to make technical modifications due to further development of the
product described in this manual. The technical information and dimensions are non-binding. No claims may
be made based on them.
This document is protected by copyright.

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1.7 Safety instructions
Please read this document and the safety instructions carefully. This document will help to define the product
area of application and to put it into operation. Additional documents (WPC-300 for the start-up software) and
knowledge of the application should be taken into account or be available.
General regulations and laws (depending on the country: e. g. accident prevention and environmental
protection) must be complied with.
These modules are designed for hydraulic applications in open or closed-loop control circuits.
Uncontrolled movements can be caused by device defects (in the hydraulic module or the
components), application errors and electrical faults. Work on the drive or the electronics must
only be carried out whilst the equipment is switched off and not under pressure.
This handbook describes the functions and the electrical connections for this electronic
assembly. All technical documents which pertain to the system must be complied with when
commissioning.
This device may only be connected and put into operation by trained specialist staff. The
instruction manual must be read with care. The installation instructions and the commissioning
instructions must be followed. Guarantee and liability claims are invalid if the instructions are
not complied with and/or in case of incorrect installation or inappropriate use.
CAUTION!
All electronic modules are manufactured to a high quality. Malfunctions due to the failure of
components cannot, however, be excluded. Despite extensive testing the same also applies
for the software. If these devices are deployed in safety-relevant applications, suitable external
measures must be taken to guarantee the necessary safety. The same applies for faults which
affect safety. No liability can be assumed for possible damage.
Further instructions
The module may only be operated in compliance with the national EMC regulations. It is
the user’s responsibility to adhere to these regulations.
The device is only intended for use in the commercial sector.
When not in use the module must be protected from the effects of the weather,
contamination and mechanical damage.
The module may not be used in an explosive environment.
To ensure adequate cooling the ventilation slots must not be covered.
The device must be disposed of in accordance with national statutory provisions.

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2 Characteristics
This module was developed for controlling of pressure and force in hydraulic systems. The controller structure
is optimized for pressure closed-loop control systems with typical pressure valves.
The controller works in a bypass control function, where the input signal is linked directly to the control output
(pressure valve) and the PID compensator has to control the linearity deviations only. In many cases the opti-
mization without further test equipment (only a pressure sensor is needed) can be carried out.
The output signal is available as 0…10 V or 4… 20 mA signal for the direct connection of valves with inte-
grated electronics. Also external amplifiers and power plugs can be used.
Alternatively, the controller (P-version) is available with an integrated power output stage (see additional
information: POWER OUTPUT STAGE). The advantage of the integrated power output stage is founded in the
integrated control behavior without additional dead times. This allows higher dynamics and higher stability
respectively.
The start-up procedure is supported by our software tool WPC-300 (free download from our homepage).
Typical applications: pressure control with pressure limitation valves and/or pressure reducing valves.
Features
Analogue pressure command and actual values
Special pressure control concept for pressure reducing and relief valves
Optimized controller for pressure closed loop control
Integrated functions to prevent pressure overshoots
Simple optimizing of the controller
Ramps for pressure loading and unloading
Simple and application orientated parameter settings
Standard USB interface
Fault diagnosis and extended function checking
Simplified parameterization with WPC-300 software
Optional with power output stage (P version)

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2.1 Compatibility
As a result of further developments some smaller changes have to be taken in consideration.
Functionality:
1. Downward compatible to the older modules.
2. 100 % wiring compatible.
3. Baud rate: The default baud rate has changed from 9600 baud to 57600 baud. This is adaptable in
WPC-300:OPTIONS/SETTINGS/INTERFACE.
FIXBAUDRATE = 57600 and/or AUTO BAUDRATE DETECTION = 57600
4. Technical enhancements:
a. Programmable analogue output: only one version (Uinstead Aand I) is necessary
b. Optional: Start-up support
Parameterization:
1. Standardizing of parameter names
2. Simplified and intuitive parameterization of the analogue inputs and sensors
3. Compatibility mode of the input scaling (AINMODE), if necessary
4. Adaptation of the output signal (current or voltages) and the polarity with the command SIGNAL:U
(the POL commando is removed)
5. Adaptation of the monitoring output signals (current or voltages) with the command SIGNAL:M
(only available in P-version)

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2.2 Device description
Standard module –for the P-Version look at point 7.2
V:
ID:
Add.:Date:
Made in Germany
W.E.ST.
Ready
1 2 3 4
5 6 7 8
910 11 12
14 15 1613
D-41372 Niederkrüchten
Homepage: http://www.w-e-st.de
W.E.ST. Elektronik
13 14 15
910 11 12
16
A B
Klemmblöcke (steckbar)
Terminals (removable)
LEDs
USB-Interface
Typenschild undAnschlussbelegung
Type plate and terminal pin assignment
23,0000 mm99,0000 mm
114,0000 mm

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3 Use and application
3.1 Installation instructions
This module is designed for installation in a shielded EMC housing (control cabinet). All cables which
lead outside must be screened; complete screening is required. It is also necessary to avoid strong
electro-magnetic interference sources being installed nearby when using our open and closed loop
control modules.
Typical installation location: 24 V control signal area (close to PLC)
The devices must be arranged in the control cabinet so that the power section and the signal section
are separate from each other.
Experience shows that the installation place close to the PLC (24 V area) is most suitable. All digital
and analogue inputs and outputs are fitted with filters and surge absorbers in the device.
The module should be installed and wired in accordance with the documentation bearing in mind EMC
principles. If other consumers are operated with the same power supply, a star-shaped ground wiring
scheme is recommended. The following points must be observed when wiring:
The signal cables must be laid separately from power cables.
Analogue signal cables must be screened.
All other cables must be screened if there are powerful interference sources (frequency
converters, power contactors) and cable lengths > 3 m. Inexpensive SMD ferrites can be
used with high-frequency radiation.
The screening should be connected to PE (PE terminal) as close to the module as
possible. The local requirements for screening must be taken into account in all cases. The
screening should be connected to at both ends. Equipotential bonding must be provided
where there are differences between the connected electrical components.
If having longer lengths of cable (> 10 m), the diameters and screening measures should
be checked by specialists (e. g. for possible interference, noise sources and voltage drop).
Special care is required if using cables of over 40 m in length, and if necessary the
manufacturer should be consulted if necessary.
A low-resistance connection between PE and the mounting rail should be provided. Transient
interference is transmitted from the module directly to the mounting rail and from there to the local
earth.
Power should be supplied by a regulated power supply unit (typically a PELV system complying with
IEC364-4-4, secure low voltage). The low internal resistance of regulated power supplies gives better
interference voltage dissipation, which improves the signal quality of high-resolution sensors in
particular. Switched inductances (relays and valve coils) which are connected to the same power
supply must always be provided with appropriate overvoltage protection directly at the coil.

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3.2 Typical system structure
This minimal system consists of the following components:
(*1) Pressure relieve valve (alternative: pressure controlled servo pump)
(*2) Cylinder / actuator
(*3) MDR-133 pressure controller
(*4) Interface to PLC
(*5) Pressure or force sensor
3.3 Method of operation
This module is useful for pressure control in very different applications.The output signal controls various
pressure valves (with integrated electronics or external power amplifier as well as with power plugs).
Optionally the device can control valve coils directly via integrated power stage (P-version). The advantages
are an easier handling, lower costs and less spares inventory.
Because of the very high stability of the pressure control structure this module is recommended where open
loop applications are not sufficient concerning the accuracy. Pressure controls with constant pumps or remote
controllable servo pumps and for force and torque controls with cylinders and motor drives are typical applica-
tions.
By means of an enable signal the output gets activated and can be controlled by the command value. The op-
erational readiness is reported via a ready signal. With setting the start signal, the feedback value will be read
in and the PID controller starts calculating and generating the output signal depending on the control deviation
and the parameterization. The ramp function for the command signal can be switched on and off with this cor-
responding digital input. The type of the output signal is selectable (SIGNAL:U).

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3.4 Commissioning
Step
Task
Installation
Install the device in accordance with the circuit diagram. Ensure it is wired cor-
rectly and that the signals are well shielded. The device must be installed in a
protective housing (control cabinet or similar).
Switching on for the first time
Ensure that no unwanted movement is possible in the drive (e. g. switch off the
hydraulics). Connect an ammeter and check the current consumed by the de-
vice. If it is higher than specified, there is an error in the wiring. Switch the de-
vice off immediately and check the wiring.
Setting up communication
Once the power input is correct the PC (notebook) should be connected to the
serial interface. Please see the WPC-300 program documentation for how to
set up communication.
Further commissioning and diagnosis are supported by the operating software.
Pre-parameterization
Parameterize now (with the help of the system redundancy and the connection
diagram) the following parameters:
The SYSTEM PRESSURE, the SENSOR SETTINGS, the OUTPUT SIGNAL
as well as the COMMAND SIGNAL and approximately the PID CONTROLLER.
Pre-parameterization is necessary to minimize the risk of an unintentional
movement / pressure.
Control signal
Check the control signal with a voltmeter. The control signal lies in the range of
0… 10 V. In the current state it should be 0 V. Alternatively, if current signals
are used, approx. 0 mA should flow.
Switching on the hydraulics
The hydraulics can now be switched on. Themodule is not yet generating a
signal. Drives should be at a standstill or drift slightly (leave its position at a
slow speed).
Activating ENABLE
CAUTION! Drives can now leave their position and move to an end position at
full speed. Take safety measures to prevent personal injury and damage.
The device can now be used in open loop control by the command input.
Activating START
This digital signal activates the PID controller. The feedback value will be read
in and the output signal gets calculated.
Controller optimization
Now optimize the parameterization of the controller according to your applica-
tion and your requirements.

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4 Technical description
4.1 Input and output signals
Connection
Supply
PIN 3
Power supply (see technical data)
PIN 4
0 V (GND) connection
Connection
Analogue signals
PIN 11
0 V (GND) connection
PIN 12
Reference output voltage
PIN 13
Command value input (W), signal range 0… 10 V or 4… 20 mA, scalable
PIN 14
Actual value input (X), signal range 0… 10 V or 4… 20 mA, scalable
PIN 15 / 12
Output signal to the valve
Type and polarity of signal are selectable by SIGNAL:U
Connection
Digital inputs and outputs
PIN 1
READY output:
ON: The module is enabled; there are no discernable errors.
OFF: Enable (PIN 8) is disabled or an error (sensor or internal error) has been detected.
PIN 2
STATUS output:
ON: The control deviation is within the defined range (CDWIN).
OFF: The control deviation is outside the defined range (CDWIN).
PIN 5
RAMP input:
Activates the ramp function for the command value.
PIN 7
RUN input:
Activates the pressure controller.
PIN 8
ENABLE input:
This digital input signal initializes the application. Error messages are deleted. The analogue
output and the READY signal will be activated.

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4.2 LED definitions
LEDs
Description of the LED function
GREEN
Identical to the READY output.
OFF: No power supply or ENABLE is not activated
ON: System is ready for peration
Flashing: Error discovered
Only active when SENS = ON
YELLOW A
Identical to the STATUS output.
OFF: The axis is outside the CDWIN window.
ON: The axis is within the CDWIN window.
GREEN +
YELLOW A+B
1. Chasing light (over all LEDs): The bootloader is active. No normal functions are
possible.
2. All LEDs flash shortly every 6 s: An internal data error was detected and corrected
automatically! The module still works regularly. To acknowledge the error the module
has to be cycle powered.
YELLOW A +
YELLOW B
Both yellow LEDs flash oppositely every 1 s: The nonvolatile stored parameters are in-
consistent! To acknowledge the error, the data have to be saved with the SAVE command
or the corresponding button in the WPC. If the function of the module has changed via the
FUNCTION parameter, all parameters are deleted purposely and set to default values. In
this case the LEDs indicate no error, but a desired state. To acknowledge please save.

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4.3 Circuit diagram
13 11 14
5 7 8 3 4
DC
DC
WA
GND +Ub
RAMP ENABLE START
U
1
2
USB Type B
READY
STATUS
X
MDR-133-U
C
-
E
W
digital output digital output
digital input digital input digital input
Control program
Input
Scaling
Input
Scaling
Ramp function
PID Controller Pressure
Valve adaption
Analog output driver
Pressure Setpoint Pressure Feedback Power Supply Common
PE via DIN rail
12
Reference Voltage Output 10 V
Control signal universal output
15
16

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4.4 Typical wiring
4.5 Connection examples
+In PIN 13 or 14
PIN 11 (GND)
SPS / PLC 0... 10 Vsensor- / commandsignal
+In PIN 13 or PIN 14
In PIN 12 (GND)
PLC or sensor 4... 20 mA two wire type
e.g. 24 V
+In PIN 13 or 14
PIN 11 (GND)
PLC or sensor 4... 20 mA three wire type
e.g. 24 V
valves (6 + PE plug) with integrated electronics
A: 24 V supply
B : 0 V supply
C : GND or enable
D : + differential input
E : - differential input
F : diagnosis signal
PE -
PIN 15
PIN 16
PIN 12
8765
16151413
1211109
shield
To power amplifier /
proportional valve.
pressure command value
(0..10V oder 4..20mA)
power supply
24V
0V
Ready
Status
Enable
4321
shield
actual pressure value
(0..10V oder 4..20mA)
0V
Ramp
10 V Reference voltage
output
0... 10V/ 4... 20mA
PE clip PE clip
Run

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4.6 Technical data
Supply voltage (Ub)
Power consumption
External protection
[VDC]
[W]
[A]
12… 30 (incl. ripple)
max. 2,5
1 medium time lag
Digital inputs
OFF
ON
Input resistance
[V]
[V]
[kOhm]
< 2
> 10
25
Digital outputs
OFF
ON
Maximum current
[V]
[V]
[mA]
< 2
max. Ub
50
Analogue inputs
Voltage
Input resistance
Signal resolution
Current
Burden
Signal resolution
[V]
[kOhm]
[%]
[mA]
[Ohm]
[%]
Unipolar / differential
0… 10 / -10… 10
min. 25
0,003 incl. Oversampling
4… 20
240 Ohm
0,006 incl. Oversampling
Analogue outputs
Voltage
Maximum load
Current
Maximum load
Signal resolution
[V]
[mA]
[mA]
[Ohm]
[%]
0… 10, +/- 10 differential
10
4… 20
390
0,007
Controller cycle times
Pressure control
[ms]
1
Serial interface
Transmission rate
-
[kBaud]
USB - virtual COM Port
9,6… 115,2
Housing
Material
Flammability class
-
-
Snap -on module acc. EN 50022
PA 6.6 polyamide
V0 (UL94)
Weight
[kg]
0,170
Protection class
Temperature range
Storage temperature
Humidity
Vibration resistance
[IP]
[°C]
[°C]
[%]
-
20
-20… 60
-20… 70
< 95 (non-condensing)
IEC 60068-2-6 (Category C)
Connections
Communication
Plug connectors
PE
-
USB type B
4 x 4-pole terminal blocks
via the DIN mounting rail
EMC
-
EN 61000-6-2: 8/2005
EN 61000-6-4: 6/2007 + A1:2011

Page 18 of 42 MDR-133-*-2030 29.08.2019
5 Parameters
5.1 Parameter overview
Group
Command
Default
Unit
Description
Basic parameters
LG
EN
-
Changing language help texts
MODE
STD
-
Parameter view
SENS
ON
-
Malfunction monitor
CDWIN
2000
mbar
Size of the control deviation window
EOUT
0
0,01 %
Output signal if not ready
Input signal adaptation
SYS_RANGE
100
mm
System pressure
Sensor scaling
SIGNAL:X
U0-10
Type of input
N_RANGE:X
100
bar
Sensor nominal pressure
OFFSET:X
0
bar
Offset value
Command signal
SIGNAL:W
U0-10
-
Type of input
Ramp function
RA:UP
RA:DOWN
100
100
ms
ms
Command Signal ramp times
Closed loop control parameters
C:P
50
0,01
PID control parameters for pressure control
C:I
4000
0,1 ms
C:D
0
0,1 ms
C:D_T1
500
0,1 ms
C:FF
8000
0,01 %
C:I_LIM
2500
0,01 %
Integrator limitation
C:I_ACT
2500
0,01 %
Integrator activation value
Output signal adaptation
MIN
0
0,01 %
Deadband compensation
MAX
10000
0,01 %
Output scaling
TRIGGER
200
0,01 %
Deadband compensation trigger point
SIGNAL:U
U0-10
-
Type of output signal and polarity
Special commands
TS
10
0,1 ms
Sample time of the control loop
Scaling mode
AINMODE
EASY
-
Input scaling mode
AIN:W
AIN:X
A: 1000
B: 1000
C: 0
X: V
-
-
0,01 %
-
Free scaling of the analogue inputs. Replaces SIGNAL:W
and SIGNAL:X (N_RANGE:X, OFFSET:X) if AINMODE is
switched to MATH.

Page 19 of 42 MDR-133-*-2030 29.08.2019
5.2 Configuration
5.2.1 LG (Changing the language)
Command
Parameters
Unit
Group
LG x
x= DE|EN
-
STD
Either German or English can be selected for the help texts.
CAUTION: After changing the language settings, the ID button (SPEED BUTTON) in the menu bar
(WPC-300) must be pressed (module identification).
5.2.2 MODE (Switching between parameter groups)
Command
Parameters
Unit
Group
MODE x
x= STD|EXP
-
STD
This command changes the operating mode. Various commands (defined via STD/EXP) are blanked out in
Standard Mode. The commands in Expert Mode have a more significant influence on system behavior and
should accordingly be changed with care.
Other group functions switch over automatically the list of commands. Only the relevant commands are visible.
5.2.3 SENS (Malfunction monitoring)
Command
Parameters
Unit
Group
SENS x
x= ON|OFF|AUTO
-
STD
This command is used to activate/deactivate the monitoring functions (4… 20 mA inputs, output current and
internal failures) of the module.
ON: All monitoring functions are active. Detected failures can be reset by deactivating the ENABLE
input.
OFF: No monitoring function is active.
AUTO: Auto reset mode. All monitoring functions are active. If the failure does not exist anymore, the
module automatically resumes to work.
Normally the monitoring functions are always active because otherwise no errors are detectable via
the READY output. Deactivating is possible mainly for troubleshooting.

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5.2.4 CDWIN (Control deviation window)
Command
Parameters
Unit
Group
CDWIN x
x= 100… 50000
mbar
STD
This parameter is entered in µm.
The CDWIN command defines a range for which the STATUS message is generated. This function monitors
the failure between the command and actual position. If the failure is less than the programmed value a
CDWIN message is given to the status output (see Pin description). The positioning process is not influenced
by this message.
PIN 7 (START) muss be acivated to generate the CDWIN message.
5.2.5 EOUT (Output signal: READY = OFF)
Command
Parameters
Unit
Group
EOUT x
x= 0… 10000
0,01 %
EXP
Output value in case of a detected error or a deactive ENABLE input. A value (degree of valve opening) for
use in the event of a sensor error (or the module is disabled) can be defined here.
|EOUT| = 0 The output is switched off in the event of an error. This is normal behavior.
CAUTION! If the output signal is 4… 20 mA, the output is switched off when |EOUT| = 0. If a
defined value is to be output in the event of an error, EOUT must be set suitable
3
.
The output value defined here is stored permanently (independently of the parameter set). The
effects should be analyzed by the user for each application from the point of view of safety.
3
This is necessary if using valves without error detection for signals lower than 4 mA. If the valve has an error detection, it
moves into a defined position after switching off the output.