Siemens SINAMICS S120 Manual page 294

Motor-side power components
6.4 dv/dt filter compact plus Voltage Peak Limiter
Risk of fire and damage to equipment due to short-circuit / ground fault
The cables to the DC link of the Motor Modules must be routed so that a ground fault or
short-circuit can be ruled out. A ground fault can result in fire with smoke.
• Protect the cables from mechanical damage.
• Comply with local installation regulations that enable this fault to be ruled out.
In addition, apply one of the following measures:
• Use cables with double insulation.
• Maintain adequate clearance, using spacers, for example.
• Route the cables in separate cable ducts or pipes.
Note
Maximum cable lengths
The connections should be kept as short as possible.
The maximum cable length between Motor Module and dV/dt filter compact (motor cables
and cables to the DC link) is 5 m.
An equivalent cable type must be used when replacing enclosed cables.
Avoid mechanical load on connections
The connections at the dV/dt filter compact are not designed for direct mechanical
connection to the motor cables.
The customer is responsible for ensuring that mechanical loading caused by connected
cables cannot bend the terminals.
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WARNING
WARNING
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Chassis power units