Siemens SIMATIC ET 200SP F-TM

Wiring
4.6 Connecting an external braking resistor
F-TM ServoDrive
30 Equipment Manual, 02/2020, A5E47579503-AA
4.6 Connecting an external braking resistor
External braking resistor
You can connect an external braking resistor to the F-TM ServoDrive.
A connected external braking resistor must be activated in the configuration software.
Wiring a non-Siemens external braking resistor
WARNING
Damage to braking resistor
If you use a non-Siemens external braking resistor, connect an overtemperature detection
device to a digital input (e.g. a bimetallic switch that opens when the temperature is too
high).
Implement fire prevention measures for the external braking resistor (e.g. fire protection
housing, temperature fuse). The resistance of the externally connectable braking resistor
must be 5 ohms ± 10%.
Design the required power as a function of the braking energy to be converted.
Connection for external braking resistor
Table 4- 4 Connection of external braking resistor
Function
Maximum cable length
Cable type
Cable cross-section
Connection of external brak-
ing resistor
2 m ≥ 0.5 m shielded Solid and stranded supply
cable:
AWG: 18 to 16 or
1.0 mm
2
to 1.5 mm
2