WURM FKV003 User manual

FKV003
Product information
Front view
Field module with output for EEV for cold locations
Features
Control of one evaporator per module
Operation of electronic expansion valves:
- Constant through output 0...10 V
- Pulsed, 230 V~ / 230 V= with ATV230
Connection of an external display
Connection of glass and handrail heaters to one free display output through ECA970
Fixed input/output assignment for sensors, control inputs and relays
Emergency program in case of bus errors
No parameters need to be set on the device
Bus connection by patch cable and screw terminals (4-pin)
Replaces FKV002B
Connection to master module by field bus (CAN bus)
FKV003_PI_2016-03_EN Subject to change without notice Page 1 of 4

FKV003
Product information
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
than can lead to death or serious bodily injury.
For your safety
For safe operation and to avoid personal injury and equipment damage through operational error,
always read these instructions, become familiar with the device, and implement all of the safety
instructions on the product and in these instructions 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 when 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 technician" personnel.
Use as intended
The FKV003 is a field module with an output for EEV applications
for use in cold locations.
WARNING!
Danger of death from electric shock!
Switch off t
he power to the entire system when installing, wiring or removing! Otherwise
a mains 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!
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!
CAUTION!
Danger of fire if there is overloading of the connections!
Ensure the maximum loads on all connections!
Faults are caused by electromagnetic interference!
Use only shielded data lines and place them far away from power lines!
Damage to device if handled incorrectly!
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!
Software revisions and validity of documentation
Software version
Functional upgrade
Page
V3.0
2013-02
Basis of documentation
2013-04
Circuit diagram changed
2014-02
Circuit diagram changed
2015-06
Information added about connection of the ECA970
3
2016-03
Updating of documentation
Any software versions not listed are special solutions for individual projects and are not documented in detail in this description.
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
Page 2 of 4 Subject to change without notice FKV003_PI_2016-03_EN

FKV003
Product information
Circuit diagram
Mounting
53
106
90
58
The device has been designed for DIN rail
mounting. The housing is a standard size and is
also suitable for installation in fuse boxes,
distribution switch boxes or electric boxes of
refrigerators.
The devices can be assembled side-by-side
without clearance.
First, place the upper guide edge of the module
on the top-hat rail.
Then press it gently downward until it engages
with the mounting safety catch on the rail.
Connection of the ECA970 to FKV003
For contactless switching of glass and handrail heaters, connect a ECA970 to the free display output of
field module FKV003. To do this, use the pre-assembled ZCB-C/ECA-3.0 connecting cable.
Note
Also pay attention to the specifications of the ECA970.
Glass and handrail heaters can only be controlled through the free display output of
the FKV003 starting from HKS-G3 V7.62.
FKV003_PI_2016-03_EN Subject to change without notice Page 3 of 4

FKV003
Product information
Set address
To correctly register the FKV003 on the bus, you must assign it a unique address using the rotary
switch. This is a requirement for functioning communication with the main module. Addresses 0-7 can
be set with the rotary switch. As such, 8 field modules can be connected to the bus.
Rotary switch
Technical data
Supply voltage
230 V~, +10 % / -15 %, max. 10 VA
Displays
1 x green LED, operating voltage
2 x green LED, CAN bus data traffic (CAN Tx, CAN Rx)
1 x red LED, flashing in case of fault
Communication
3-wire CAN bus interface, shielded, galvanically isolated
Screw terminals or RJ45 socket (2x)
Temperature probe
4 x TRK277, (standard connection: Supply air, return air, defrost limit,
suction gas)
Analogue input
4...20 mA or 0...10 V=, output voltage 22 V=,
max. 22 mA (moisture sensor, transmitter)
Digital inputs
24 V=, +20 % / -10 %, approx. 5 mA per input,
1 x cold location off, 1 x 2nd setpoint, 1 x cold room door open
Output relay
1 x cooling, normally closed contact, 230 V~, 4(2) A
1 x fan, normally closed contact, 230 V~, 4(2) A
1 x defrost, normally open contact, 230 V~, 4(2) A
Connection display /
frame heating
1 x socket for prefabricated line to display DSP002, DSP001, DSP-LCD
DSP booster or for controlling a frame heating via ECA970 (1x)
Analogue output
1 x 0...10 V=, non-isolated, max. load 10 mA, for constant valves
Outlet PWM / EEV
1 x 0...10 V=, non-isolated, max. load 10 mA,
for control of electronic relay through ATV230
Housing dimensions
(WxHxD) 106 x 90 x 58 mm, DIN 43880
Mounting
Mounting rail DIN EN 50022, 35 x 15
Ambient temperature
Operation: 0...+50 °C, storage: -25...+70 °C
Weight
About 275 g
CE conformity
EU conformity as defined in
- 2014/30/EU (EMC Directive)
- 2014/35/EU (Low Voltage Directive)
RoHS II
Valid from
Version 3.0
Note!
Please observe the detailed descriptions in the chapters of the Frigolink catalogue.
Page 4 of 4 Subject to change without notice FKV003_PI_2016-03_EN