Maintenance Carried out by: Frequency Comments
Replace the water soften‐
er / ion exchanger
Operator When required (but af‐
ter a maximum of two
years).
Replace the microfilter. Operator When the water soften‐
er is replaced.
Clean the sieve As required
Check the software. Siemens serv‐
ice personnel
Whenever parameters
are changed
and then every 5 years.
Test the insulation (test
mode for the Bender insula‐
tion measuring device)
Siemens serv‐
ice personnel
Every two years
Inspect the motor and trans‐
former.
Siemens serv‐
ice personnel
See the applicable
servicing instructions
See the specifications in the op‐
erating manual.
Check the spare parts. Siemens serv‐
ice personnel
Annually If necessary reorder spare parts
9.4.3 Cleaning
NOTICE
Damage caused by aggressive cleaning agents
Aggressive chemical agents can damage the electronics. This can result in malfunction.
Never use any type of chemical agent or liquid.
● Only remove severe dirt and contamination after prior consultation with service experts for
the particular product.
Use a dry, clean, lint-free ESD cleaning cloth. Wipe all external parts of the rack with it. Make
sure that the dirt is not distributed, but actually removed by constant changes of the wiping
surface of the cloth. For significant levels of pollution and dirt, use an ESD cloth soaked in ethyl
alcohol (however, not so much that it drips from the cloth).
Maintenance
9.4 Inspection and maintenance
SINAMICS SM150 6SL3845-7NN46-7AA2
144 Operating Instructions Rev.201910281345 EXAMPLE
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