Maximum Motor Cable Lengths; Star-Delta Connection Of The Motor - Siemens SINAMICS V20 Operating Instructions Manual

Electrical installation
4.2 Terminal description
NOTICE
Damage to the mains terminals
During electrical installation of the inverter frame sizes A and B, only stranded cables or
cables with UL/cUL-certified fork crimps can be used for the mains terminal connections; for
frame size E, only cables with UL/cUL-certified ring crimps can be used for the mains
terminal connections.

Maximum motor cable lengths

Inverter
variant
Without output reactor or external EMC filter
400 V Unshielded
FSA 50 m
FSB to FSD 50 m
FSE 100 m
230 V Unshielded
FSA 50 m
FSB to FSC 50 m
As specified in Section B.1.8.
1)
For filtered variants only. RE/CE C3 refers to EMC compliance to EN61800-3 Category C3 for Radiated and Conducted
2)
Emissions; RE/CE C2 refers to EMC compliance to EN61800-3 Category C2 for Radiated and Conducted Emissions.
For unfiltered variants only.
3)

Star-delta connection of the motor

Select delta connection if either a 230/400 V motor on a 400 V inverter or a 120/230 V motor
on a 230 V inverter is supposed to operate at 87 Hz instead of 50 Hz.
42
Shielded EMC compliant (RE/CE
C3)
2)
25 m 10 m
25 m 25 m
50 m 50 m
Shielded EMC compliant (RE/CE
C2)
2)
25 m 10 m
25 m 25 m
Maximum cable length
With output reactor
Unshielded
150 m
150 m
300 m
Unshielded
200 m
200 m
Operating Instructions, 09/2014, A5E34559884
With external EMC filter
Shielded EMC compliant (RE/CE
C2)
3)
150 m 25 m
150 m 25 m
200 m 25 m
Shielded EMC compliant (RE/CE
C2)
3)
200 m 5 m
200 m 5 m
SINAMICS V20 Inverter
1)