SINAMICS G150
Operating Manual
11-1
11Maintenance and Servicing
11
11.1 Chapter Content
This chapter provides information on the following:
• Maintenance and servicing procedures that have to be carried out on a regular
basis to ensure the availability of the cabinet unit
• Exchanging device components when the unit is serviced
• Reforming the DC link capacitors
• Upgrading the Cabinet Unit Firmware
• Load the new operator panel firmware and database from the PC.
DANGER
Before carrying out any maintenance or repair work on the de-energized cabinet
unit, wait for 5 minutes after switching off the supply voltage. This allows the
capacitors to discharge to a harmless level (< 25 V) after the supply voltage has
been switched off.
Before starting work, you should also measure the voltage after the 5 minutes have
elapsed!
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