Power Connection - Siemens Simotics T-1FW6 Operating Instructions Manual

Connection
5.2 Electrical connection
5.2.4

Power connection

Table 5- 5
Connection of circuit breaker
For the following configurations, you require a circuit breaker for each motor:
• Several motors are connected in parallel to one Motor Module.
• The current-carrying capacity of the feeder cable cross-section is less than the current
load capability of the Motor Module.
Connect all of the motors to be connected in parallel to a Motor Module via a circuit breaker.
• Connect phases U, V, W of the motor in question to the corresponding terminals of the
associated circuit breaker:
U - L1
V - L2
W - L3
• Connect phases U, V, W of the Motor Module to the circuit breaker terminals:
U - T1
V - T2
W - T3
• Connect the auxiliary NO contacts of the circuit breaker in series.
• Connect the auxiliary NO contacts to an input on the CU/NCU.
• Connect the auxiliary NO contact to an external drive fault of the drive using BICO
technology. This means that when a circuit breaker trips, the complete drive is shut down
(OFF2).
• You can also evaluate the auxiliary NO contact of the circuit breaker using the PLC.
• Adjust the circuit breaker to the rated current of the motor feeder cables +10%.
76
Conductor assignment for power cables with open conductor ends
Color/identification
green/yellow
black / U / L1 / C / L+
black / V / L2
black / W / L3 / D / L-
Connection
PE
U
V
W
1FW6 external rotor built-in torque motors
Operating Instructions, 12/2020, A5E49196960B AB