Siemens SINAMICS GL150, Operating Instructions Manual

Page: 132 / 168

9.6.2 Cleaning the cooling unit filter
You can only clean the filter in front of the intake to the converter when the cooling unit has been
switched off.
You can clean the filter at the output of the ion filter when the cooling unit is switched on. Make
sure that you close the valves to the ion exchanger.
9.7 Repairs
WARNING
Burns caused by inadequate cable insulation
Improperly laid or damaged cables and incorrectly attached cable shieldings can heat up in
places and cause fires or short-circuits wherever they make contact.
● Check whether all the cable shields are intact.
● Insulate damaged cable shields.
● Make sure that a short-circuit cannot occur on the power cables due to failure of the
insulation as a result of incorrect cable installation.
NOTICE
Damage if the auxiliary power supply is not available
When the auxiliary power supply is switched off, data about error message statuses can be
lost. Inadequate diagnostic and error rectification measures can result in material damage.
● We recommend using an uninterruptible power supply (UPS). If you are unsure of the
measures necessary after the device fails, or if a fault cannot be rectified, contact the
Service Center.
After performing repairs, refasten all cable ducts whose cover faces downward with a cable tie.
The cable ties must be located at the same positions as in the delivered state. You will find more
information in "Fastening the cable ducts with cable ties (Page 103)".
NOTICE
Damage caused by an incomplete repair
In the case of damage, several components can have a fault condition. Consequential
damage can occur if the device is recommissioned but the repair work carried out was not
complete.
● Check whether secondary faults have occurred on components which have failed.
Replace the components involved.
Maintenance
9.7 Repairs
SINAMICS GL150 6SL38555UN113KA0Z
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Operating Instructions Rev.201910281450 EXAMPLE