Maintenance
9
9.1 Safety instructions for maintenance
Observe Chapter, "Safety instructions" when carrying out any work at the converter.
WARNING
Improper maintenance and repairs
Improper repairs can result in death and serious physical injury.
Only qualified maintenance and installation personnel may perform repairs.
WARNING
Defective seals
When working on the device, seals at the doors, roof panels as well as front, rear and side
panels can be damaged. Operating the device with defective seals can result in death, serious
injury or material damage.
Replace the defective seals before commissioning. Observe the environmental conditions
stated in the technical data.
WARNING
High voltages from external supplies
Magnetizing and demagnetizing equipment that is fed from an external voltage source can
cause high voltages on the drive. This voltage can result in death or serious injury.
Ensure that no voltage from external feeds exists before commencing maintenance and repair
work.
NOTICE
Non-approved spare parts
Using non-approved spare parts can affect the function of the equipment and damage it. Third-
party spare parts and unapproved spare parts may not meet the requirements.
Therefore, only use spare parts that have been approved by the manufacturer.
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017 155
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