Wiring Terminal Strips - Siemens SINAMICS G120 Original Instructions Manual

Installing
4.4 Installing Control Unit
Macro 105: Fan pressure control +
ESM with fixed setpoint
Control Units CU230P-2
4.4.4

Wiring terminal strips

Danger to life as a result of hazardous voltages when connecting an unsuitable power
supply
Death or serious injury can result when live parts are touched in the event of a fault.
• For all connections and terminals of the electronic boards, only use power supplies that
Risk of electric shock from touching live parts
If the insulation is damaged on the lines that are connected to the terminals DO 0 and DO
2, parts of the Control Unit may still be connected to the power supply. When connecting
230 V on terminals DO 0 and DO 2 there is the risk of an electric shock.
• Close the power supplies of 230 V only via lines with double insulation on the relay
In order to install the inverter in compliance with UL, you may only connect the DO 0 and
DO 2 relay outputs of the Control Unit using copper wires approved for 75 °C.
66
Macro 106: Cooling tower with active
sensor + hibernation
Control Units CU230P-2
WARNING
provide PELV (Protective Extra Low Voltage) or SELV (Safety Extra Low Voltage)
output voltages.
DANGER
outputs DO 0 and DO 2 on the control unit.
Macro 107: Cooling tower with LG-
Ni1000 sensor + hibernation
Control Units CU230P-2
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG