Supply Voltage For Plc Outputs On The Mc - HEIDENHAIN iTNC 530 Service Manual

17.5.2 Supply voltage for PLC outputs on the MC

X44:
PLC supply voltage
Pin layout on the MC 42x (B/C):
Connecting
terminal
1
2
3
4
If the 24 V power supply (which cannot be shut off via emergency stop) is missing at X44, the
Error message
error message Supply voltage missing at X44 appears.
The corresponding PLC outputs do not function. Depending on the PLC program of the machine
manufacturer, PLC error messages are displayed.
July 2010
Pin layout
+24 V cannot be switched off via EMERGENCY
STOP
+24 V can be switched off via EMERGENCY
STOP
0 V
PLC outputs
O24 to O30
O16 to O23
O0 to O15
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