Siemens SINAMICS SM150, Operating And Installation Instructions

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Remove very greasy layers using ethyl alcohol. If there are other heavily polluted areas, use
ESD-compliant fiber or plastic brushes to clean them.
NOTICE
Unsuitable cleaning chemicals for aluminum
Any strongly alkaline chemicals such as caustic potash or soda as well as acids corrode the
aluminum and roughen the surface. The agents often recommended for cleaning glass also
exhibit this effect and must therefore not be used on aluminum.
Only use cleaning agents that are suitable for aluminum.
NOTICE
Unsuitable cleaning utensils for aluminum
The use of unsuitable cleaning cloths and brushes may transfer metallic, corrosion-inducing
impurities onto the aluminum. This can result in corrosion damage.
● Use ESD-compliant brushes and cloths.
● Do not use cleaning cloths and brushes that have been treated with copper, brass, bronze
or other heavy metals.
● Use neither brass, bronze, or steel-wire brushes nor cloths or steel wool interwoven with
copper wire.
9.7 Repairs
WARNING
Insufficient 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
Drive failure
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 damage to the drive.
We recommend using an uninterruptible power supply (UPS). If you are unsure of the
measures necessary after the drive fails, or if a fault cannot be rectified, contact the Service
Center.
Maintenance
9.7 Repairs
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017
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