Installing
4.5 Connecting the line supply, motor, and inverter components
Converter with the CU240B-2 and CU240E-2 Control Units
84 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
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 inverter
Procedure
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.
Connecting inverters in compliance with EMC (Page 54)
3. Connect the protective conductor of the motor to the
terminal of the inverter.
4. If available, close the terminal covers of the inverter.
You have now connected the motor line to the inverter.
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