7.3.2
Safety information
Danger to life if the fundamental safety instructions and remaining risks are not carefully
observed
If the fundamental safety instructions and remaining risks in Chapter 1 (Page 21) are not
observed, accidents involving severe injuries or death may occur.
• Adhere to the fundamental safety instructions.
• When assessing the risk, take into account residual risks.
Fire hazard and device damage as a result of ground fault/short-circuit
The cables to the braking resistor must be routed so that a ground fault or short-circuit can
be ruled out. A ground fault can result in fire with associated smoke.
• 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:
Risk of burns resulting from high surface temperatures
The braking resistor can become very hot. You can be severely burnt when touching the
surface.
• Mount the braking resistor so that it cannot be touched. If this is not possible, attach a
• To prevent adjacent components from suffering damage due to these high
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
WARNING
WARNING
– Use cables with double insulation.
– Maintain adequate clearance, e.g. using spacers.
– Route the cables in separate cable ducts or pipes.
CAUTION
clearly visible and understandable warning notice at hazardous positions.
temperatures, maintain a clearance of 100 mm on all sides of the braking resistor.
DC link components
7.3 Braking resistors
189