Siemens Sinamics S120 Manual page 74

Accessories
4.1 Motor connector
Opening the terminals/releasing the motor cables
To release the terminals, press the individual locking levers up using a slot-head screwdriver
(0.8 x 4 mm) until the lever snaps back into the motor connector casing.
If it is difficult to withdraw the conductors from the open terminal, it may help to press the
locking lever up as far as it will go while withdrawing the conductor. This action opens the
spring-loaded terminal to its maximum.
Note
We do not recommend manual release of the terminal due to the high forces that need to be
applied.
Connecting conductors to connector with screw terminals
Starting with phases W2, V2, U2, insert the conductors into the open terminals.
Ensure that the conductors are inserted as far as they will go.
For larger cross-sections, it is helpful if the three phase conductors are simultaneously
inserted and secured by screws.
Tighten the screws with a torque of 0.5-0.6 Nm (4.4 lb-in). Screwdriver: Slot-head 0.8 x 4
mm.
74
Power Units in Booksize C/D-Type Format
Manual, 01/2017, 6SL3097-4AC20-0BP1