17 – 274 HEIDENHAIN Service Manual iTNC 530
17.5.4 Supply voltage for PLC outputs on the PL 510
Connection
PLB 510 basic
module
Pin layout for X3 (power supply for logic circuit):
PLD 16-8 input/
output module
Pin layout at X6 (power supply for PLC outputs):
The iTNC 530 cyclically monitors the supply voltage and short circuits of the PLC outputs of
a PL 510.
Connecting terminal Pin layout
1 +24 Vdc (20.4 V to 28.8 V)
2+0 V
Connecting terminal Pin layout
9 +24 Vdc (20.4 V to 28.8 V) for group 1 (terminal 1 - 4)
10 +24 Vdc (20.4 V to 28.8 V) for group 2 (terminal 5 - 8)