Operation, service and maintenance
6.2 Maintenance
PM250 Power Module
48 Hardware Installation Manual, 01/2016, A5E36265179B-AA
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.
Replacing
fans (Page 49)
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).
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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