Maintenance - Siemens SINAMICS G12 Hardware Installation Manual

Service and maintenance

6.1 Maintenance

6.1 Maintenance
The purpose of maintenance is to maintain the specified condition of the Power Module.
Regularly remove dirt and pollution, and replace the fan in plenty of time.
fan (Page 70)
Cleaning
Inverters with IP20 degree of protection - built-in units
Clean the inverter with an anti-static brush, a vacuum cleaner and areas that are difficult to
access, using dry compressed air (max. 1 bar).
Inverters with push-through technology – PT devices
Clean the heatsink at regular intervals. If necessary, remove the air deflection plate at the rear.
Use a torque of 2 Nm when reconnecting. The fans must be installed if you clean the heatsink
using water.
Ventilation
The devices must be installed in a cabinet. Ensure that the cabinet's ventilation slots are not
blocked. Check that the fan is functioning correctly.
Cables and screw terminals
Regularly check the cables for damage, and immediately replace any defective parts.
Regularly check that the screw terminals have been correctly tightened. Retighten the screws
if necessary.
Note
The actual maintenance intervals depend on the installation and operating conditions.
Siemens offers its customers support in the form of service contracts. For further information,
contact your Siemens regional office or sales office.
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Hardware Installation Manual, 08/2017, A5E33294624B AG
Replacing a
Power Module PM240-2