286 HEIDENHAIN Technical Manual MANUALplus 620
X171 to X174:
PLC outputs
Ampacity of the outputs: Maximum 150 mA per output
Please note that the outputs of connectors X171 to X174 are galvanically iso-
lated internally from the +24 V NC supply voltage supplied via X101. The out-
puts can therefore be supplied with +24 V PLC or +24 V NC.
For the entire HSCI system, the +24 V NC supply voltage is required to be
safely separated voltage. The +24 V NC supply voltage must not, under any
circumstances, be connected with the +24 V PLC supply voltage, because this
removes the double basic insulation.
X111 to X113:
Potentiometer
connection
Pin layout:
X171: PLC outputs
Assignment Terminal
1 2 3 4 5 6 7 8 9
PL 6001 O0O1O2O3O4O5O6O724 V PLC for
O0 to O7
X172: PLC outputs
Assignment Terminal
1 2 3 4 5 6 7 8 9
PL 6001 O8 O9 O10 O11 O12 O13 O14 O15 24 V PLC for
O8 to O15
X173: PLC outputs
Assignment Terminal
1 2 3 4 5 6 7 8 9
PL 6001 O16 O17 O18 O19 O20 O21 O22 O23 24 V PLC for
O16 to O23
X174: PLC outputs
Assignment Terminal
1 2 3 4 5 6 7 8 9
PL 6001 O24 O25 O26 O27 O28 O29 O30 O31 24 V PLC for
O24 to O31
Connecting
terminals
Assignment
1 0 V potentiometer
2 Potentiometer arm
3 +5 V potentiometer
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