● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified in the technical data. See also the system-
specific documentation.
● The minimum insulation resistance values are within tolerance.
● Minimum air clearances have been maintained.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are fully functional.
● The values for "Warning" and "Shutdown" are set at the monitoring devices.
● All brakes and backstops are operating correctly.
See also
Technical data and drawings (Page 113)
● The bearing insulation should be implemented as shown on the plates.
Switching overvoltages
When high-voltage machines with starting current I
A
≤ 600 A are switched off while starting or
after they have been blocked, then in individual cases inadmissibly high switching overvoltages
for the stator winding insulation can occur through multiple restrikes.
The peak voltages which arise as a result can damage the winding insulation.
● If you are using vacuum circuit breakers and vacuum contactors, use an appropriate surge
suppressor, such as the Siemens 3EF (zinc oxide varistor with spark gap).
● An additional RC arrester (resistor and capacitor connected in series) makes sense at
unfavorable operating points/under unfavorable line supply conditions.
See also
Switching high-voltage motors (Page 25)
Current transformer
● Ensure that the secondary circuit of the current transformer is protected against accidental
opening during operation.
Cooling
● Check that the machine cooling is available for commissioning.
Commissioning
7.1 Prior to commissioning
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
70 Operating Instructions 06/2018
To Next Page
Loading...
Need help?
General