Electrical Connections - Eliwell Coldface EWRC300LX Bedienungsanleitung

ELECTRICAL CONNECTIONS

Output relay (default settings)
• OUT1 relay 1 = Compressor (or liquid line
valve)
• OUT2 relay 2 = Defrost
• OUT3 relay 3 = Evaporator fan
• OUT4 relay 4 = Alarm (only EWRC500LX)
• OUT5 relay 5 = light (only EWRC500LX)
Probe inputs (default settings)
• Pb1 = NTC cold room probe
• Pb2 = NTC defrost end probe
• Pb3 = Not used
Important! Make sure the machine is switched off
before working on the electrical connections.
• Removable screw terminals: electric cables of 2.5
mm maximum cross-section (one wire per terminal
2
in the case of power connections).
• Fastons: double row of fastons in series.
RS-485
Keyboard
1 2 3
RS485 connection to
TelevisSystem available
with optional plug-in
module only
EWRC 300-500 LX
Line
Neutral
Ground
230V
Line
230V
Neutral
Ground
3 - EN
Pb1
DI1 DI2
11 12 13 14 19 20 21 22 23 24
RS-485/TTL
COM NO COM NONC COM NO
OUT1 OUT2 OUT3
H21 H22 H23
To switch between NTC/PTC probe types use
parameter H00. SWITCH OFF AND RESTART
THE INSTRUMENT after making the change
Digital Inputs (default settings)
• D.I.1 = Door switch
• D.I.2 = Disabled
Serials
• TTL for connection to Copy Card
• TTL for connection to TelevisSystem
• RS485 available ONLY with optional Plugin
module for connection to TelevisSystem.
Bus
Adapter
TTL
Pb2
Pb3
CARD
Copy
Card
COM NO NC COM NO
EWRC500LX only
OUT4 OUT5
H24 H25
RS 485
Relay outputs on board
indicated with
• COM: Common
• NO: Normally Open
• NC: Normally Closed
Removable
Terminals
Faston
Default Configuration
LINE
NEUTRAL
Relay
Parameters
EWRC300/500LX