Preventive Maintenance; Inspection; Maintenance Intervals - Siemens SINAMICS S120 Operating Instructions Manual

Note
Siemens offers its customers support in the form of a service contract. For further details,
contact your regional office or sales office.
High voltage after shutdown
High voltages are still present in the drive even after it has been shut down. Touching the
drive can result in death or serious injury.
Only work on the power unit if it has been sufficiently grounded. Before touching the drive,
ensure that the following parts of the power unit are de-energized:
● Internal busbars
● Input and output terminals
● Auxiliary power supply
Always observe the five safety rules (Page 13)when carrying out any work on the device.
8.2

Preventive maintenance

8.2.1

Inspection

The purpose of an inspection is to ascertain and evaluate the current status of the equipment.
An inspection mainly comprises visual checks. Inspections should be carried out based on a
schedule that meets the needs of the special environmental conditions at the location of use.
The following servicing and inspection instructions are used as the basis for regular inspection
of the equipment.
8.2.2

Maintenance intervals

Note
The specified maintenance intervals are limit values that may need to be reduced depending
on the operational conditions.
The operating company must always ensure that an appropriate maintenance is performed.
The maintenance intervals depend on the calendar time or the operating hours, whichever
occurs first.
Siemens Drives & PLCs
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A
WARNING
Servicing
8.2 Preventive maintenance
107