Example of connection with TC Input
Electric heating with power solid state relay and water cooling with solenoid valve
EV
L1
L2
OUT2 logic
OUT1 relay
AUX
PWR
-
+
Serial line
(data +)
(data -)
GND
B
A
RS485 isolated serial line
Modbus 2 wires (Standard)
Tx
+
Rx
+
RS485 isolated serial line
For configuration
Modbus 4 wires/Cencal.
Modbus 4 wires / Cencal
S1 S1
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81801G_MHW_1200-1300_07-2011_ENG