Siemens SINAMICS G120 Operating Instructions Manual page 75

Danger to life as a result of a hazardous voltage at the motor connections
As soon as the inverter is connected to the line supply, the motor connections of the
inverter may carry dangerous voltages. When the motor is connected to the inverter, there
is danger to life through contact with the motor terminals if the terminal box is open.
• Close the terminal box of the motor before connecting the inverter to the line supply.
Connecting the line supply cable to the converter
Procedure
To connect the converter to the supply system, proceed as follows:
1. If available, open the terminal covers of the converter.
2. Connect the line supply to terminals U1/L1, V1/L2, and W1/L3.
3. Connect the protective conductor of the line supply to terminal PE of the converter.
4. If available, close the terminal covers of the converter.
You have connected the line supply cable to the converter.
Connecting the motor cable to the converter
Procedure
To connect the motor cable to the converter, proceed as follows:
1. If available, open the terminal covers of the converter.
2. Connect the motor to terminals U2, V2, and W2.
Carefully observe the regulations for EMC-compliant wiring:
Connecting inverters in compliance with EMC (Page 48)
3. Connect the protective conductor of the motor to the
4. If available, close the terminal covers of the converter.
You have therefore connected the motor line to the converter.
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
DANGER
4.5 Connecting the line supply, motor and converter components
terminal of the converter.
Installing
75