Siemens Sinamics S120 Manual page 283

Risk of fire due to ground fault / short-circuit
Inadequate installation of the cables to the Power Module or Motor Module DC link can
result in a ground fault / short-circuit and place persons at risk as a result of the associated
smoke and fire.
• Comply with local installation regulations that enable this fault to be ruled out.
• Protect the cables from mechanical damage.
• In addition, apply one of the following measures:
Note
Maximum cable lengths
The connections should be kept as short as possible.
The maximum cable length between Power Modules or 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.
Damage to the dv/dt filter compact through mechanical load on the connections
The connections at the dv/dt filter compact are not designed for direct mechanical
connection to the motor cables.
• Take measures on the installation to ensure that the connections cannot be deformed
Liquid-cooled chassis power units
Manual, (GH7), 11/2016, 6SL3097-4AM00-0BP7
WARNING
– Use cables with double insulation.
– Maintain adequate clearance, e.g. by using spacers.
– Route the cables in separate cable ducts or pipes.
WARNING
by the mechanical load exerted by the connected cables.
Motor-side power components
7.4 dv/dt filter compact plus Voltage Peak Limiter
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