Walther 979429.02 User manual

Rev. 1.2
Operating Manual 979429.02
Page 1 of 13
Walther Systemtechnik GmbH –D 76726 Germersheim
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Operating Manual
Universal Temperature Controller 230 V AC
Article Number:
979429.02
NOTE
Please read this Operating Manual carefully before first using the device and strictly adhere
to the instructions!
This device may only be worked with and worked on by persons who are familiar with this
Operating Manual and the current regulations for industrial safety and accident prevention.
Always keep the “Original Operating Manual“ at the device!
The manual has to be available anytime!

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Operating Manual 979429.02
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Walther Systemtechnik GmbH –D 76726 Germersheim
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Table of Contents
Page
EC Declaration of Conformity 3
1Introduction 4
1.1 Target Group of this Manual 4
1.2 List of Signs and Symbols 4
2Safety 4
2.1 General Information 4
2.2 Dangers from Residual Energy 4
2.3 Safety Advice 4
2.4 Warranty 5
2.5 Correct Use 5
2.6 Incorrect Use 5
3Description of Function 6
3.1 Purpose of the Device 6
3.2 Technical Data 6
4Initial Start-Up 7
4.1 Mounting and Installation 7
4.2 Operating and Display Elements 7
4.3 Interfaces 8
4.4 Wiring Diagram 8
4.5 Configuration of Sensors and Outlets 9
5Adjusting the Device 9
5.1 Operating the Menu 10
5.2 Changing the Set Temperature 10
6Parameter Tables 11
6.1 Basic Settings 11
6.2 P.I.D. Programming 12
6.3 Function "Automatic Self-Adjustment" (Autotuning) 12
7Operation 13
7.1 General Information 13
8Maintenance and Disposal 13
8.1 General Information 13
8.2 Disposal 13
9Troubleshooting 13
9.1 General Information 13
9.2 Error Codes 13
9.3 Customer Service / Support 13

Rev. 1.2
Operating Manual 979429.02
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Walther Systemtechnik GmbH –D 76726 Germersheim
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EC Declaration of Conformity
in accordance with the EC Machinery Directive 2006/42/EC of May 17th, 2006, Annex II A
We herewith declare that the design and construction of the machine marketed by us as described
below corresponds with the safety requirements of the EC Directive 2006/42/EC. If the machine is
modified without our consent, this declaration loses its validity.
Manufacturer Walther Systemtechnik GmbH
Hockenheimer Straße 3
D- 76726 Germersheim
Description
Universal Temperature Controller, Article Number 979429.02
We declare that the product is in accordance with the following relevant regulations:
EMC- Directive 2014/30/EU, dated 26. February 2014
The following harmonized European Standards have been applied:
DIN EN ISO 12100 Safety of machinery; basic concepts, general
principles for design –Risk Assessment and Risk
Reduction (ISO 12100:2000)
Other applied technical standards and specifications:
Authorized Representative for Technical Documentations:
Stefan Hirl, Hockenheimer Straße 3, D- 76726 Germersheim
Germersheim, 19 April 2016
(Place, Date) (Stefan Hirl, Management)

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Operating Manual 979429.02
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Walther Systemtechnik GmbH –D 76726 Germersheim
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1 Introduction
1.1 Target Group of this Manual
Operating Personnel
Maintenance Personnel
1.2 List of Signs and Symbols
This operating manual warns users of operations which may put their health at risk. The warnings are
indicated by combinations of text and symbols as follows:
WARNING
Signals a possible dangerous situation.
Death or severe injuries can follow, if you do not avoid this situation.
CAUTION
Signals a possible dangerous situation.
Slight or minor injuries can follow, if you do not avoid this situation. This sign is also
used where damage to property is possible.
IMPORTANT
Indicates tips for usage and other particularly useful information.
No dangerous situation.
2 Safety
2.1 General Information
The construction of this device is according to the latest technology and is absolutely reliable. The individual
components as well as the complete device are continuously checked by our quality management.
2.2 Dangers from Residual Energy
Please instruct the operating personnel on the respective measures to be taken against the occurrence of
mechanical, hydraulic, pneumatic and electric / electronic residual energies.
2.3 Safety Advice
OBSERVE
Please observe the following safety advice in order to avoid dangerous situations!
Assemble the controller in a certified device before connecting it! Depending on the individual
assembly situation, an additional touch guard for the terminal contacts may be required according to
rules and regulations.
Establish an individual hazard analysis for the integration of the controller into existing processes. If
necessary, install respective safety equipment in a workmanlike manner.

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Do not operate the device in an explosive surrounding or close to flammable liquids or gases.
Keep in mind that an unqualified operation with power and current can cause pain, or severe health
damages or even death.
This operating manual requires a technical qualification for operating and working with electrical
equipment. Contact your local certified electrician if you do not have this special qualification!
2.4 Warranty
According to the conditions laid down by the German Engineering Federation (VDMA), Walther Systemtech-
nik GmbH has a guarantee of 12 months under normal European operating conditions on its own parts
(spare parts are excluded); or according to the conditions of the manufacturer.
This guarantee can only be granted by Walther Systemtechnik GmbH, if:
the user has thorough knowledge of the content of this operating manual;
the user follows the instructions and notes contained in this operating manual;
the user does not rebuild or make changes on parts of the device without prior consent of WST Sys-
temtechnik GmbH.
2.5 Correct Use
WARNING
The controller is intended exclusively for the control of uncritical consumers. Outside
operation is only permissible in suitable housing with at least IP44 protective cover of
the front side. The control unit must be protected from condensation.
2.6 Incorrect Use
Operating the device with insufficient knowledge about the operation, maintenance and care of the
device.
Making changes, extensions or alterations on the device that may hamper its safety without the prior
consent of Walther Systemtechnik GmbH.
Operating the device with defective safety installations or not properly attached or malfunctioning
safety devices.
Handling the device while energized.
The use of the control unit for controlling consumers which might endanger persons,
animals, machines or other devices when the control unit or the consumer are
damaged, is not permissible, or requires safety-relevant facilities (e.g. safety thermostat
or emergency OFF devices).

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3 Description of Function
3.1 Purpose of the Device
The 979429.02 Temperature Controller is a high-precision tool for either simple ON/OFF two-position
control and three-position control (difference temperature between two temperature values) or
optionally with performance approximation via P.I.D. operating mode.
With freely programmable hysteresis in ON/OFF mode.
The model type 979429.02 was designed for heating and cooling operation in a control range between
-199 … 2.300°C. The measuring range is determined by the employed sensor type.
Simple operation and parameterization as well as useful additional functions such as recognition of sensor
damage with automatic power cut-off, alarm output, 3 completely free configurable switching outlets etc. offer
the necessary flexibility for industrial use. Due to the freely programmable hysteresis overlaps with rising or
falling edges, additional possibilities for use as temperature limiter or as unilateral edge-controlled switching
conditions arise for two-position or three-position operation.
3.2 Technical Data
General Data
Dimensions (WxHxD)
ca. 48x48x83mm
Cut-out
45x45mm
Display Range
-199°C bis +2250°C
Display Height
Ca. 10mm
Resolution
0.1°C (PT100) resp. 1°C
Max. Outlet Load [°C]
Ca. 1A (Ohm load)
Max Switching Load [V AC]
230 V AC
Ambient Temperature [°C]
Max. 45°C
Ambient Air Humidity [%]
Max. 85% rel. humidity in aggressive surrounding
Standby Power Consumption [W]
< 3W

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4 Initial Start-Up
4.1 Mounting and Installation
Perform the installation as described below:
Mount the control unit into a suitable housing.
Connect the temperature sensor.
Connect the consumers / relays to the described clamps.
(see p.9/5.3 )
Connect the control voltage as described (check voltage beforehand)!
(see p.9/5.3 )
Parameterize the control unit according to your requirements.
(see pages 10-14)
4.2 Operating and Display Elements
1. LED "J1-Relais Indicator AL1" (device is heating)
LED "J2-Relais Indicator AL2" (device is heating)
2. Arrow key "UP"
Arrow key "DOWN"
Arrow key "change number and Function
Autotuning"
Set button "select and confirm"
3. LED shows " Load on"
(a signal is sent to the SPS)
Blinking display = "Autotuning on"
4. Display "4-digit display"
1
2
3
4

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4.3 Interfaces
General Information:
Model 979429.02 is intended for resistance sensors Pt100; furthermore for thermo elements of type T, R, J,
B, S, K, E and Wre-Wre25. For use with platinum sensors (PT100) the degree display is within 1/10 degree
of accuracy. For use with thermo elements the measuring display has an accuracy of the measuring
temperatures in the four-digit range (max. 2300 degrees).
The 979429.02 possesses a reduction switch necessary for the connection of PT100 sensors in three wire
connection for compensating the cable resistance. Cable lengths of up to 50 meters measuring lead can be
realized without intermediate transmitter (min. 3x0.22mm²).
Inlets:
Control Voltage:
The supply voltage for the controller is 230V AC 50Hz (see also connection diagram).
4.4 Wiring Diagram
Warning
Working with electricity can be very dangerous! Imitating the illustrated examples can
cause accidents and must be performed by qualified experts only!
Check whether the voltage information on the control corresponds with these
instructions!
(No warranty with wrong connection!)
Hysteresis:
Temperature value or time value necessary only in the ON/OFF operating mode, which
passes by between the automatic switch-off when the set value is reached and the
automatic restart. This value can basically be indicated in degrees C or as time value. The
hysteresis is necessary in order to avoid the so-called “flickering” of the relay, when the
temperature value reaches the set value.

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4.5 Configuration of Sensors and Outlets
Thermo elements:
Clamp 8 = empty
Clamp 9 = plus
Clamp 10 = minus
Resistance sensor (PT100)
3-wire: Clamp 8 = white
Clamp 9 = red
Clamp 10 = red
2-wire: Clamp 8 = white
Clamp 9 = red
SSR outlet:
Clamp 6 = (+)
Clamp 7 = (-)
Relays outlet (J1)
Clamp 3,4,5 (potential-free alternating contact)
Relays outlet (J2)
Clamp 13,14 (potential-free maker)
5 Adjusting the Device
Menü
Auswahl
Beschreibung der Auswahl
Werks-
einstell.
Measuring range
Required value Temperature (fast access also via )
80.0°
Measuring range
Turn-on value Temperature Relays J1
80.0°
Measuring range
Turn-off value Temperature Relays J1
80.0°
Measuring range
Turn-on value Temperature Relays J2
80.0°
Measuring range
Turn-off value Temperature Relays J2
90.0°
After selecting confirm your menu settings by pushing SET
You will then automatically return to the menu selection or to the control mode.
Note: in cooling operations (menu “rd”=1), AH1(2) is the turn-on value and AL1(2) is the turn-off value after turning on!
IMPORTANT
The color coding of the sensors is not standardized. Polarity with clamps 6, 7, 8 causes a
fault message or an unrealistic display value. This will not damage the controller. If the
sensors are exchanged, the correctly installed sensor can be calibrated during operation at
a random reference temperature (see page 5, menu PSb).
Make sure the sensor is suitable for the temperature range to be measured. PT 100
sensors with lower or higher measuring ranges can be connected to the device.
Push the "SET" button followed by code entry 0001 in order to gain access to these
parameters.
Use the below table for the setting of temperature values after you have entered the basic
settings according to the parameter table „Basic Settings“, page 13 correctly.

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5.1 Operating the Menu
Process
Result
1.
For pre-selection of functional parameters, press
the "SET" button
Display PV shows
2.
Enter the codes 0089, 0001 or 0036 by using the
"arrow buttons", then push "SET".
The display switches into the setting mode for a
functional entry (in this case to select the sensor)
and shows the menu entry
3.
Select the menus as listed below by pressing the
"arrow buttons".
All menus will be shown in the display in
accordance with the figure to the left by pushing
the arrow buttons. You will be able to view all
available menus in this group.
4.
After selecting the menu –in our example
(the active display flashes), confirm with "SET".
The display will now switch into the setting mode of
the selected menu (in this case the setting of the
sensor types to be connected). The upper display
(PV) will show the active menu; the lower display
(SV) will show the symbol for the sensor to be
selected (see table).
5.
Select your value by using the "arrow buttons"
and confirm with "SET".
The display will switch back into the menu
selection.
6.
For further settings repeat the steps starting with
number 4
5.2 Changing the Set Temperature
Press / hold the arrow buttons for changing the set temperature at the control outlet.
The value will be shown in the display.
The display will return to the operating mode after a few seconds.
Depending on the set operating mode (menu “Outy”) follow the setting options according to the
“Parameterization Table Basic Setting and Relay Outputs“ for setting additional outlets.
Gain access to the 3 different setting menus by entering the appropriate code (refer to the
description below).

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6 Parameter Tables
6.1 Basic Settings
Menu
Selection
Description of Selection
Sensor Type
Color acc.to EN 60584
Temperature Range
PT100 sensor display with 1 decimal (e.g.
24.5)
no standardization
-199.9 … +600°C,
depending on the
model
PT100 sensor displaying total degrees (e.g.
24)
no standardization
Cu50 sensor display with 1 decimal
no standardization
-50 … +150°C
Thermo element type T Cu-CuNi
brown (+) / white (-)
-200 … +400°C
Thermo element type R PtRh13-Pt
orange (+) / white (-)
-50 … +1600°C
Thermo element type J Fe-CuNi
black (+) / white (-)
-200 … +1200°C
Thermo element type Wre3-Wre25
no standardization
0 … +2300°C
Thermo element type B PtRh30-Pt
no standardization
+350 … 1800°C
Thermo element type S PtRh10-Pt
orange (+) / white (-)
-50 … +1600°C
Thermo element type K Ni-CrNi
green (+) / white (-)
-200 … +1300°C
Thermo element type E NiCr-CuNi
purple (+) / white (-)
-200 … +900°C
0
Output relays J1 and J2 as ON/OFF function programmable without P.I.D. Outlet SSR relay
disabled. Suitable for two-point or differentiating temperature circuit.
1
Output relay J1 as alarm and J2 as P.I.D. outlet without voltage pulse function (only on-off cycled),
2
Outlet relay programmable as in Mode 0; additionally activated SSR-P.I.D. outlet at clamps 6 (+)
and 7 (-) (voltage-impulse outlet approx. 10V=)
3
SSR outlet as ON/OFF operation (menu Hy = activated; P.I.D. deactivated).
4
J1 as alarm outlet; J2 as ON/OFF operation with running hysteresis value (Menu Hy); SSR outlet
disabled; AH2 and AL2 inactive (table: Relays Outlets page 4)..
0 ...999°
Hysteresis value (restart delay) for SSR outlet for selection OUTY= 3
-100° ...+100°
Calibrating function for adjusting sensor deviations. Value will be added to the set value.
0
Operating mode “heating operation”. Controller will turn off load after rising temperature has
reached the set value (above set value = load cut off).
1
Operating ,mode “cooling operation”. Controller will turn off load when falling temperature has
reached the set value (below set value = load cut off)
0
Selection of unit for measuring and display = degrees Celsius
1
Selection of unit for measuring and display = degrees Fahrenheit
After selecting , confirm your menu setting by pushing SET
You will now automatically return to the menu selection or to the control mode.
Push the "SET" button and enter code 0089 in order to set the following parameters.
Use this table for the basic settings of the controller after connecting the control voltage
and the temperature sensor. The load can be connected, but does not have to.

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6.2 P.I.D. Programming
Menu
Selection
Description of Selection
Default
0.1 -99.9 (%)
Input value proportional term of P.I.D. control
5.0
2 - 1999
Input value integral term (time value) of P.I.D. control
100
0 - 399
Input value of differential term of P.I. D. control
20
0.0 - 1.0
Input value overshoot suppression
0.2
2 - 199
Input value of a proportional cycle. Usual value at SSR (voltage-puts output) = 2, with use
of relay outlet J2 8relay contact-output) = 5-15
2
0 - 3
Digital filter factor
0
After selecting , confirm your menu setting by pushing .. You will now
automatically return to the menu selection or the control mode.
6.3 Function "Automatic Self-Adjustment" (Autotuning)
The control unit 979429.02 has a program that automatically finds the optimal P.I.D. settings of the
connected load. For this purpose it is necessary that the control unit is ready-to-operate, the load is clamped
on, and an uncritical set value for temperature is already set.
CAUTION
When the auto-tuning function is used, the control unit runs through one or several
control cycles in order to determine the parameters. In doing so, strong deviations from
the set value may appear. Take this into consideration when setting the set value.
Process
Result
Simultaneously press the buttons and
hold for approx.4 seconds.
The red LED (AT) flashes. The process is finished
when AT stops blinking.
In order to turn off auto-tuning earlier, press the arrow button for approx. 4 seconds until AT stops
blinking. The previous settings remain unchanged.
Access to these parameters is obtained by pressing "SET" and then entering the code
0036.
Use the table below for the settings or corrections of the P.I.D. temperature values, after
you have selected the setting 1 or 2 according to the parameter table “Basic Settings” as
operating mode under OUTY. We recommend defining a basic setting beforehand by
using the auto-tuning function.

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7 Operation
7.1 General Information
This device will only be operated if the safety-related equipment is permanently effective and not suspended
during operation or altered in its intended effectiveness.
8 Maintenance and Disposal
8.1 General Information
8.2 Disposal
NOTE
When taking out of service please make sure the device is properly recycled according
to current rules and regulations.
9 Troubleshooting
9.1 General Information
NOTE
First check all supply lines for connectivity and serviceability.
In case of serious problems that cannot be resolved, please contact the Walther Systemtechnik GmbH
customer service.
9.2 Error Codes
9.3 Customer Service / Support
Walther Systemtechnik GmbH
Hockenheimer Straße 3
D-76726 Germersheim
Germany
Phone ++49(0)7274-7022-0
Telefax ++49(0)7274-7022-91
Email [e-mail]
Internet www.walther-2000.de
Under normal operating conditions the control unit is maintenance free. Avoid dust
deposits. The front may be cleaned with a clean, damp cloth while the controller is
switched off.
Result:
Sensor breach or short circuit!
If displayed after a sensor was installed: a wrong sensor type was selected in the "OUTY"
menu. (Page 13 Parameter Table - Basic Settings). The load will be cut off.