Siemens SINAMICS S120 Equipment Manual page 296
Chassis liquid cooled power units
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Maintenance and servicing
9.5 Forming the DC link capacitors
Forming circuit for Motor Modules
Figure 9-22
Procedure
● The unit being formed must not receive a power-on command (e.g. from the keyboard,
● Connect the appropriate forming circuit.
● During the forming process, the incandescent lamps must become less bright or go
Maintaining the operational readiness of individual power blocks for servicing
It is recommended that during the planned downtimes, the power blocks positioned on the
line side are replaced in order to guarantee the correct functioning of the power blocks
during servicing.
294
Forming circuit for Motor Modules
BOP20 or terminal block).
completely dark. If the incandescent lamps continue to be brightly lit, a fault has occurred
in the drive unit or in the wiring.
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1
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