Siemens sinamics G120 Operating Instructions Manual page 79

Low voltage inverters chassis devices with cu250s-2 control units and encoder evaluation

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Motor is connected in the star or delta configuration

With SIEMENS motors, you will see a

diagram of both connection methods on

the inside of the cover of the terminal

• Star connection (Y)

• Delta connection (Δ)

Connecting the motor cable to the inverter

To connect the motor cable to the inverter, proceed as follows:

1. If available, open the terminal covers of the inverter.

2. Connect the motor at the U2, V2 and W2 terminals.

3. Connect the protective conductor of the motor to the

4. If available, close the terminal covers of the inverter.

You have now connected the motor line to the inverter.

Converter with CU250S-2 Control Unit

Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE

4.5 Connecting the line supply, motor, and inverter components

Installing the inverter in compliance with EMC rules (Page 52)

terminal of the inverter.