Siemens SINAMICS S220 Equipment Manual page 152

Motor Modules
8.2 Safety instructions
Electric shock due to improper DC link connection
Incorrectly established connections can result in overheating and therefore fire with associated
smoke. There is also a risk of an electric shock. This can result in serious injury or death.
• Only use adapters (DC link adapters and DC link rectifier adapters) released by Siemens for
Electric shock due to incorrectly installed DC link bridges
Incorrectly installed DC link bridges at the left-hand end of the drive line-up can cause an
electric shock.
• For all 50 mm wide modules, remove the DC link bridge.
• For all components that are wider, you must neither move the DC link bridge to the left nor
Electric shock due to missing DC link side covers
There is a danger of an electric shock through contact if the DC link side covers are missing.
• Mount the side covers on the first and last component in the drive line-up.
• Order any missing side covers (Article number: 6SL3162-5AA00-0AA0).
Electric shock due to unsuitable brake cable insulation
When routing brake cables, whose insulation properties are not suitable for safe electrical
separation, the insulation can fail resulting in electric shock.
• Connect the holding brake with the specified MOTION-CONNECT cable.
• Only use third-party cables that have brake cores with insulation properties that comply
Overheating of the motor cables when the permissible conductor cross-sections are
fallen below
Excessively thin motor cables can result in overheating. This can result in severe injury or death
due to fire and smoke.
• Use cables that correspond to the Motor Module currents. Take into account the routing
• If the rated motor current is less than the rated Motor Module output current, then you can
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the connection to the DC link.
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remove it, as the DC link bridge ensures the mechanical stability of the DC link busbars.
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with safe electrical separation or separately route the brake cores to absolutely ensure safe
electrical separation.
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type, ambient temperature and cable length.
select appropriately smaller cross-sections.
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA