Maintenance - Siemens SINAMICS S120 Manual

Maintenance and Servicing

8.3 Maintenance

Cleaning
Dust deposits
Dust deposits inside the device must be removed at regular intervals (or at least once a
year) by qualified personnel in line with the relevant safety regulations. The unit must be
cleaned using a brush and vacuum cleaner, and dry compressed air (max. 1 bar) for areas
that cannot be easily reached.
Ventilation
The ventilation openings in the devices must never be obstructed. The fans must be checked
to make sure that they are functioning correctly.
Cable and screw terminals
Cable and screw terminals must be checked regularly to ensure that they are secure in
position, and if necessary, retightened. Cabling must be checked for defects. Defective parts
must be replaced immediately.
Note
Maintenance intervals
The actual intervals at which maintenance procedures are to be performed depend on the
installation conditions (cabinet environment) and the operating conditions.
Siemens offers its customers support in the form of a service contract. For further details,
contact your regional office or sales office.
8.3 Maintenance
Servicing involves activities and procedures for maintaining and restoring the specified
condition of the devices.
Required tools
The following tools are required for replacing components:
● Spanner or socket spanner (w/f 10)
● Spanner or socket spanner (w/f 13)
● Spanner or socket spanner (w/f 16/17)
● Spanner or socket spanner (w/f 18/19)
● Hexagon-socket spanner (size 8)
● Torque wrench
● Screwdriver size 1/2
● Screwdriver Torx T20/T25/T30
A socket wrench set with two long extensions is recommended.
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Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Chassis power units