Connection Examples - Siemens SINAMICS S120 Manual
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- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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5.1 Blocksize
Risk of burns or damage resulting from high surface temperature of the braking resistor
The braking resistor can become very hot. You can be severely burnt when touching the
surface. Neighboring components can become damaged.
• Mount the braking resistor so that it cannot be touched. If this is not possible, at the
• To avoid temperature-related damage to adjacent components, follow these rules:
NOTICE
Damage to braking resistor due to ingress of water
If the heat generated by the brake resistor is not dissipated then this can result in damage.
• Do not cover the ventilation openings of the braking resistor.
5.1.1.3
Connection examples
The braking resistor is connected directly on the Power Module at the terminals R1 and R2.
The braking resistor must be protected against overheating. This protection function
performs the function of a thermostatic switch. The thermostatic switch is included in the
scope of supply of the braking resistor. Evaluate the braking resistor temperature monitoring
so that the motor is switched off when the resistor is in an overtemperature condition.
158
CAUTION
dangerous locations, attach an appropriate warning note that is clearly visible and easy
to understand.
– Mount the resistor on a heat resistant surface with a high thermal conductivity.
For PM240-2 Power Modules FSA, FSB and BSC installed horizontally close to the
ground:
– Installation on sheet steel > 2 mm
– Ensure a ventilation clearance of 250 mm at the sides of the braking resistor
– Ventilation clearance of 1000 mm above the braking resistor
For PM240-2 Power Modules FSA, FSB and FSC when installed vertically against a wall
or panel:
– Installation on sheet steel > 2 mm
– Ensure a ventilation clearance of 100 mm at the sides of the braking resistor
– Ventilation clearance of 1000 mm above the braking resistor
For PM240-2 FSD, FSE and FSF Power Modules:
– Observe the data provided in the braking resistor documentation
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
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