Status signals of the cooling unit
The following status signals are sent from the cooling unit to the converter:
Status signal Function name TM31 terminal
Cooling unit ready
●
Low = cooling unit not ready
● High = cooling unit ready to switch on. You can start
the converter.
DI0 -X520:1
Cooling unit operates correctly.
●
The cooling unit operates correctly after switch-on.
● A pump is running.
● The water pressure and the water level match the
specifications.
● The coolant temperature lies within the correct
range.
DI1 -X520:2
Group alarm
●
High = no alarm active
● Low = at least one alarm message is active
DI3 -X520:3
Group fault
●
High = no-fault active
● Low = at least one fault is active
DI3 -X520:4
Commissioning
6.2 Commissioning the cooling unit
Applications for Cabinet Modules, liquid cooled
102 Operating Instructions, 04/2015, A5E35974555A
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