July 2013 3.8 Supply voltages in the HSCI system 237
3.8.6 PSL 13x low-voltage power supply unit
PSL 130 pin layout Connector Function
Conductor bar Connection of DC-link voltage Uz
B – Signal
ground
(= functional
ground)
Signal ground (0 V signal of the +24 V NC
signal connected internally to protective
ground)
X90 Output for supply voltages:
Terminal 1: +24 V NC
Terminal 2: 0 V NC
(ground +24 V NC)
Terminal 3: + 24 V PLC
Terminal 4: 0 V PLC
(ground +24 V PLC)
X33 Input voltages L1, L2
Protective ground
Do not engage or disengage any connecting elements while the unit is
under power!