Siemens SINAMICS S120 Device Manual page 471

Safety instructions
Risk of death from fire when installation is inadequate
When installation is inadequate (failure to observe the cooling clearances or insufficient
distances from combustible objects), there is a risk of fire leading to death or serious injury.
• It is essential that you maintain a cooling clearance of 200 mm on all sides of the
• Maintain a sufficient distance from combustible objects.
Risk of injury when hot surfaces on the braking resistor are touched
During operation, the braking resistor can reach high temperatures and can cause burns if
touched.
• Allow the braking resistor to cool down before starting any work.
• Wear the appropriate personnel protection equipment, e.g. gloves.
Risk of death from fire caused by ground fault / short-circuit when connections to the
braking resistor are not fused
Non-fused connections to the braking resistor can cause fire with smoke generation in the
event of a short-circuit or ground fault and cause serious injuries or death.
• Install the connections to the braking resistor in such a way that a ground fault or short-
• Comply with local installation regulations, which allow this fault to be ruled out.
• Protect the cables from mechanical damage.
• Take one of the following measures:
NOTICE
Property damage resulting from exceeding the maximum permitted cable length
Exceeding the maximum permitted cable length to the braking resistor can cause property
damage due to component failure.
• Observe the maximum cable length between the cabinet unit and the braking resistor of
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
WARNING
braking resistor with ventilation grills.
CAUTION
WARNING
circuit can be excluded.
– Use cables with double insulation.
– Maintain adequate distances, e.g. using spacers.
– Route the cables in separate cable ducts or pipes.
100 m.
8.34 L61/L62, L64/L65, braking units
Options
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