Extract from Service Manual
1 --- 5
Alarm messages (machine shuts down)
Line
Display Symbol Meaning
4
1 Safety chain
EMERGENCY STOP button pressed.
Access door open (if provided).
2 Motor fault
Overload protection of drive or fan motor (if pro-
vided).
3 Back pressure present.
Incorrect motor rotation direction.
--- Drive belt broken
--- Compressor not vented on standstill.
4 Maximum permissible airend discharge temperature
exceeded.
5 Fault in the refrigeration dryer.
6 Defective analog input (pressure or temperature sen-
sor).
7 Maximum permissible temperature of the controller
exceeded.
8 Reserve
Tab. 5 Alarms
Warning messages (machine does not shut down)
Line Display Symbol Meaning
4
S Maintenance interval elapsed.
p Back pressure present.
T Machine below minimum permissible starting tem-
perature.
i Pressure relief valve check modus switched on.
Tab. 6 Warning messages
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