Connecting The Line Supply And Motor; Permissible Line Supplies - Siemens SINAMICS G120 Operating Instructions Manual
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
4.4
Connecting the line supply and motor
Electric shock when the motor terminal box is open
As soon as the inverter is connected to the line supply, the motor connections of the inverter
may carry dangerous voltages. When the motor is connected to the inverter, there is danger
to life through contact with the motor terminals if the motor terminal box is open.
● Close the motor terminal box before connecting the inverter to the line supply.
Note
Fault protection for the motor circuit
The electronic overcurrent trip complies with the requirements laid down in IEC
60364-3-2:2005/AMD1:- Section 411 for protection against electric shock.
● Observe the installation specifications provided in this manual.
● Observe the applicable installation standards.
● Ensure the continuity of the protective conductor.
4.4.1
Permissible line supplies
Restrictions for installation altitudes above 2000 m
Above an installation altitude of 2000 m, the permissible line supplies are restricted.
72
WARNING
Restrictions for special ambient conditions (Page 478)
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
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