Siemens SINAMICS G120 Operating Instructions Manual page 76
Low voltage inverters
built-in units with cu250s-2 control units and
encoder evaluation
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Also See for SINAMICS G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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Installing
4.4 Connecting the line supply and motor
Inverter connected to a TN system
● Inverters with integrated line filter:
– Operation on TN line systems with grounded neutral point permissible.
– Operation on TN line systems with grounded line conductor not permissible.
● Inverters with external line filter:
– Operation on TN line systems with grounded neutral point permissible.
– Operation on TN line systems with grounded line conductor not permissible.
● Inverter without line filter:
– Operation on all TN line systems ≤ 600 V permissible
– Operation on TN line systems > 600 V and grounded neutral point permissible.
– Operation on TN line systems > 600 V and grounded line conductor not permissible.
74
Note
Special feature of FSG inverters
FSG inverters with integrated C3 line filter can be operated in TN line systems ≤ 600 V
with a grounded line conductor if you remove the screw for functional grounding.
Figure 4-7 Remove screw for functional grounding (Page 73)
If you remove the screw for functional grounding, the EMC properties deteriorate and
the requirements of Class C3 are no longer met.
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
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