Siemens SINAMICS S120 Manual page 86

Electrical installation
4.5 Connections
Motor connection
Table 4- 8
Terminals
DCP, DCN
DC power input
U2/T1, V2/T2, W2/T3
3 AC power output
Dimensions for connecting alternative cable lugs, see Chapter "Cable lugs", Section "Electrical
1)
installation".
Connecting the motor cables
Note
Position of the connections
For the location of the connections, see the layout diagrams.
1. Open the cabinet and remove the covers in front of the connection panel for motor cables
(terminals U2/T1, V2/T2, W2/T3; X2).
2. Insert the cables through the elastic cable entry below the connection panel.
For example, you can use a knife to make a circular slit in the cable entry at the
appropriate positions and then introduce the cable from below so that subsequent sealing
is not required.
3. Screw the protective earth (PE) onto the PE busbar at the specified points in the cabinet
(50 Nm with M12).
4. Screw the motor cables onto the terminals.
Make sure that the conductors have been connected in the correct sequence (U2/T1,
V2/T2, W2/T3)!
86
Motor connection, Motor Modules
NOTICE
Material damage due to loose power connections
Insufficient tightening torques or vibration can result in faulty electrical connections. This
can result in damage due to fire or malfunctions.
• Tighten all power connections with the specified tightening torques, e.g. line supply
connection, motor connection, DC link connections.
• Regularly check all power connections by retightening them with the specified
tightening torque. This applies in particular after transport.
Technical data
Voltage:
510 ... 720 VDC
675 ... 1035 VDC
Voltage:
0 V 3 AC to 0.72 x DC-link voltage
Connection:
M12 / 50 Nm for cable lugs in accordance with DIN 46234 or
DIN 46235
1)
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A