Maintenance And Servicing; Chapter Content - Siemens SINAMICS S120 Equipment Manual

Maintenance and Servicing

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 components.
● Exchanging device components when the unit is serviced
● Forming the DC-link capacitors
Not observing fundamental safety instructions and residual risks
Not observing fundamental safety instructions and residual risks listed in Chapter 1 can
result in accidents with severe injuries or death.
• Comply with the fundamental safety instructions.
• When assessing the risk, take into account remaining risks.
Electric shock from external supply voltages
When the external power supply or the external 230 V AC auxiliary supply is connected,
dangerous voltages are still present in components even when the main switch is open.
Contact with live parts can result in death or serious injury.
• Switch off external supply voltages and external 230 V AC auxiliary supply before
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9
WARNING
WARNING
opening the device.
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