WURM FKE003 User manual

FKE003
Product information
FKE003_V2.2_PI_2018-01_EN Subject to technical changes Page 1 of 8
Front view
Field module with semiconductor relay for EEV
for installation in refrigeration units for cold locations
Features
Operation of electronic expansion valves pulsed by integrated electronic relay (valve
controller 230V~) or ATV230 (valve actuation 230V~/=)
Control of one evaporator per module
Integrated temperature display
Tool-free front installation
Fixed input/output allocation for sensors, control inputs and relays
Emergency program in case of CAN bus errors
External power supply over TR9-9-4
Secure connection through prefabricated accessories (ZCB)
Front panel with seal frame for increased splash protection
Connection to master module via Wurm CAN field bus (F-BUS)

FKE003
Product information
Page 2 of 8 Subject to technical changes FKE003_V2.2_PI_2018-01_EN
Writing conventions
Symbol Meaning
CAUTION! Avoid the described hazard: Otherwise minor or medium bodily injury or
property damage will result.
WARNING! Avoid the described hazard: Otherwise there is danger from electric voltage that
can lead to death or serious bodily injury.
For your safety
For safe operation and to avoid personal injury and equipment damage through operating error,
always read these instructions, become familiar with the device, and follow all safety instructions on
the product and in this document, as well as the safety guidelines of Wurm GmbH & Co. KG
Elektronische Systeme. Keep these instructions ready to hand for quick reference and pass them on
with the device if the product is sold.
Wurm GmbH & Co. KG Elektronische Systeme accepts no liability in case of improper use or use for
other than the intended purpose.
Target group These instructions are intended for service technicians.
Intended use The FKE003, which is installed in refrigerators, is a field module for cold
locations.
WARNING!
Danger to life from electric shock and/or fire!
Switch off the power to the entire plant when installing, wiring or removing! Otherwise a
mains voltage and/or external voltage may still be present even if the control voltage is
switched off!
The wiring of the device should be carried out only by a qualified electrician!
Use only the correct tools for all work!
Check all wiring after connection!
Take note of the maximum loads on all connections!
Never expose the device to moisture, for example due to condensation or cleaning
agents!
Take the device out of operation if it is faulty or damaged and is therefore compromising
safe operation!
Do not open the device!
Do not repair the device yourself! If required, send it in for repair with an exact
description of the fault!
CAUTION!
Electromagnetic interference can cause faults!
Use only shielded data lines and place them far away from power lines!
Software revision and validity of documentation
Software version
V2.2 2018-01 Documentation status
Any software versions not listed are special solutions for individual projects and are not described in detail in this document.
This document automatically ceases to be valid if a new technical description is issued.
Manufacturer: Wurm GmbH & Co. KG Elektronische Systeme, Morsbachtalstraße 30, D-42857 Remscheid
For further information, see our website at www.wurm.de

FKE003
Product information
FKE003_V2.2_PI_2018-01_EN Subject to technical changes Page 3 of 8
Contents
1Circuit diagram ......................................................................................................................... 3
2Installation / connections ........................................................................................................ 3
3Display and control elements.................................................................................................. 5
4Device operation....................................................................................................................... 5
4.1Activating the advanced level ........................................................................................ 5
4.2Selecting parameters..................................................................................................... 5
4.3Set parameter ................................................................................................................ 6
4.4Set module number ....................................................................................................... 6
4.5Block keys against unauthorised operation ................................................................... 6
5Parameter.................................................................................................................................. 7
6Fault messages and emergency programs ........................................................................... 8
7Technical data........................................................................................................................... 8
1 Circuit diagram
2 Installation / connections
28
150 x 32
0,6 ... 3,5
61
72
120
158
120
Installation section

FKE003
Product information
Page 4 of 8 Subject to technical changes FKE003_V2.2_PI_2018-01_EN
WARNING! Danger to life from electric shock and/or fire!
Switch power off to the entire system when installing and wiring! Otherwise a mains
voltage and/or external voltage may still be present even if the control voltage is switched
off!
All connections are designed as plugs for prefabricated cable.
Connections for prefabricated cables
The following cables, CAN bus adapters and terminating resistors are available for the FKE003.
Cables Application
ZCB-C/TR-0.6 Controller – transformer, 0.6m
ZCB-C/TR-2.0 Controller – transformer, 2.0m
ZCB-C/REL2M-5P Controller – load, 5-pin
ZCB-C/DI-2.0 Controller - digital inputs, 2.0m
ZCB-C/DI-7.0 Controller - digital inputs, 7.0m
ZCB-C/AI-2.0 Controller (plug) – analogue input (wire end sleeves), 4…20mA, 2.0m
ZCB-C/AI-7.0 Controller (plug) – analogue output (wire end sleeves), 4…20mA, 7.0m
ZCB-C/AO-2.0 Controller (plug) – analogue output (wire end sleeves), 0…10V, 2.0m
ZCB-C/BUS-0.6 Controller – controller/bus adapter (plug), 0.6m
ZCB-C/BUS-4.5 Controller – controller/bus adapter (plug), 4.5m
Bus adapter Application
ZCB-ADP/BUS CAN bus adapter
Terminating
resistor Application
ZCB-ADP/R Terminating resistor for CAN bus

FKE003
Product information
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P
1
2
3 Display and control elements
3 4
4 Device operation
The setting menu is divided into 2 distinct function areas, the standard level and the advanced level.
The standard level encompasses only the display of the control actual value and the status LEDs.
The advanced level encompasses all parameters (P01 to P16).
4.1 Activating the advanced level
1. To switch to advanced level, press the <P> key for 5 seconds.
The LED "Advanced level" will flash for as long as the level is released.
P
...
P
...
5s
2. To return to the advanced level, press the <P> key again for 5 seconds.
If no key is pressed within 2 minutes, the display automatically returns to the standard level.
4.2 Selecting parameters
1. Press the <P> key to display the parameter number.
The parameter number will appear in the display for as long as the key is depressed.
2. To select individual parameters with the <P> key depressed, press the ▲or▼key.
When the keys are released, the value corresponding to the parameter is displayed.
P P P P
LEDs and 7-segment display
1 Parameter change approved
2 Advanced level
3 Status LEDs
4 Value / parameter number
Display symbols
Defrosting
Cooling
Fan

FKE003
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4.3 Set parameter
1. Select the parameter to be set (first enable the advanced level if necessary).
2. Parameter change approved. Press all 3 keys simultaneously for 5 seconds.
The LED "Parameter change approved" flashes.
3. Change the values using the ▲or ▼keys.
5s 5s
When changing the parameters, it is not necessary to re-enable access to make further value
adjustments.
Current values are simply displayed. They cannot be adjusted even if the LED "Parameter change
approved" is flashing.
4. To disable parameter change, press all 3 keys simultaneously again for 5 seconds.
If no key is pressed within 2 minutes, the display automatically returns to the standard level and
parameter change is disabled. The jump back is always made to the temperature display.
4.4 Set module number
For easier setting of the module number (P11), the menu item can be opened directly by pressing the
Service key (behind the front plate) 3 times in rapid succession.
All that is needed now to set the address is to release parameter adjustment.
4.5 Block keys against unauthorised
operation
If the Service key and the arrow key ▼are pressed simultaneously for 5 seconds, the keyboard (3
visible keys) is blocked. An effective block is confirmed by displaying the text ""noOP" for 1 second.
Blocking the keys simultaneously exits the advanced level and branches to the standard menu.
Access is also blocked if it was released before.
Note!
▪3 x Service key => address P11
Note!
▪5s Service key + ▼=> keys blocked

FKE003
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When keys are blocked, each time a key is pressed, the access and advanced level LEDs are lit to
indicate that key blocking is active, so that the device will not be considered faulty mistake.
The block can be removed by pressing the service key together with the Menu key "P" for 5 seconds.
Removal of the block is signalled by the appearance of the text "FrEE" for 1 second.
5 Parameter
Standard level: actual value
No. Parameter factory Min. Max. Description
P00 Control actual value - - Current actual value of temperature control
Advanced level: actual values and setpoints
No. Parameter factory Min. Max. Description
P01 Actual value of supply air - - Temperature of supply air sensor S1
P02 Actual value of return air - - Temperature of return air sensor S2
P03 Actual value of defrost limit
sensor - - Temperature of defrost limit sensor S3
P04 Actual value of suction gas
temperature - - Temperature of suction gas sensor S4
P05 Actual value 4...20mA 0 25.5 Current on 4…20mA input (resolution: 0...25.5mA)
P06 Actual value 0...10V output 0 100 Triggering of the 0...10V output (resolution: 0...100%)
P07 Sensor type supply air S1 277 - - Type of the temperature sensor – to be set on the master
module
P08 Sensor type return air S2 277 - - Type of the temperature sensor – to be set on the master
module
P09 Sensor type defrost limit S3 277 - - Type of the temperature sensor – to be set on the master
module
P10 Sensor type suction gas
temperature S4 277 - - Type of the temperature sensor – to be set on the master module
P11*Address 0 0 7 Selected module number (F-BUS address)
P12 Version - - Applied device version
P13*Relay test function 0 3
0 = all relays off
1 = defrost
2 = cooling
3 = fan
The relay test is automatically deactivated if the menu is
exited or if there is no other key input for 2 minutes.
P14 Status of input: cold location
off OFF OFF ON Current status of digital input DI1
P15 Status of input: 2n setpoint OFF OFF ON Current status of digital input DI2
P16 Status of input: Door open OFF OFF ON Current status of digital input DI3
*Adjustable parameters
Note!
▪5s Service key + P=> keys enabled

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6 Fault messages and emergency programs
In case of a fault, the display flashes with the fault code.
Display Cause Monitoring function and emergency program
COLL Address conflict on CAN bus The set module number is already assigned.
Set a different module number!
buS CAN bus error
No communication over the CAN
bus
Check the CAN bus connection!
ErCo CAN bus communication error The device has detected activities on the field bus,
but is not being controlled by the corresponding
master module. Check address setting and
parameter settings of the master module!
EE Data fault in non-volatile memory A power surge may destroy the set parameters.
Operation is carried out with the factory default
settings. Newly enter all storage locations! De-
energise the control unit!
7 Technical data
Power supply Through transformer TR9-9-4 with plug connection
Communication 3-wire CAN bus interface, galvanically isolated
Temperature sensor 3 x TRK277/5ST-PLUS or TRK277/7ST-PLUS
(Standard connection: supply air, return air, defrost limit)
1 x TRK-EEV/7ST (suction gas)
Analogue input 4…20mA, output voltage 18V=, max. 22mA
Digital inputs 3 x potential-free contact
(1 x cold location off, 1 x 2nd setpoint, 1 x cold room door open)
Outputs The total current on the output relays and electronic relay must not
exceed 6A.
Output relay 1 x cooling, normally closed contact, 230V~, 3(2)A
1 x fan, normally closed contact, 230V~, 3(2)A
1 x defrost, normally open contact, 230V~, 3(2)A
Electronic
semiconductor relay
1 x control of a pulse-width modulated EEV, 230V~, 4…60VA, note the
minimum power output!
Residual voltage measureable! Integrated semiconductor
protection (no isolator)
Analogue output 1 x 0…10V=, non-isolated, max. load 1mA
Alternatively for control of an electronic relay ATV230 (valve 230V~/=)
Housing Plastic
Dimensions (WxHxD) 158 x 32 x 75mm
Fastening In the installation cut-out with holding clips and sealing frame (120 x
28mm)
Ambient temperature Operation: 0...+55°C, storage: -25…+70°C
Degree of protection IP54 (front)
Weight About 150g
CE conformity 2014/30/EU (EMC Directive)
2014/35/EU (Low Voltage Directive)
EAC conformity TR CU 004/2011
TR CU 020/2011
RoHS II
Valid from Version 2.2
Note!
Please observe the detailed descriptions in the chapters of the FRIGOLINK system manual.