January 2012 3.6 Supply Voltages in the HSCI System 189
3.6.5 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 sig-
nal 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!
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