3.6 Optional components
3.6.1 Braking resistor
3.6.1.1 Function of the braking resistor
Description
When the motor is in regenerative mode, the braking resistor converts the braking energy of the
motor into heat. This enables the converter to actively and dynamically brake the motor and the
load machine attached to the motor.
Because the braking resistor heats up strongly during braking, the braking resistor is only
suitable for short-duration braking operations.
To prevent overheating of the braking resistor, the converter must monitor the temperature
of the resistor:
• Monitoring of the temperature switch in the braking resistor
• Additionally, optional activation of temperature monitoring using a thermal model in the
software
3.6.1.2 Order data for braking resistor, degree of protection IP21
Table 3-3 Order data, line voltage 3 AC 200 ... 240V
Rated power of the converter Braking resistor
0.55kW … 2.2kW JJY:023151720007
3kW … 4kW JJY:023163720018
5.5kW … 7.5kW JJY:023433720001
11kW … 18.5kW JJY:023422620002
22kW … 30kW JJY:023423320001
Table 3-4 Order data, line voltage 3 AC 380 ... 480 V/500 V
Rated power of the converter Braking resistor
1.1kW … 1.5kW 6SL3201-0BE14-3AA0
2.2kW … 4kW 6SL3201-0BE21-0AA0
5.5kW … 7.5kW 6SL3201-0BE21-8AA0
11kW ... 15kW 6SL3201-0BE23-8AA0
18.5kW ... 22kW JJY:023422620001
30kW ... 37kW JJY:023424020001
45kW ... 55kW JJY:023434020001
Description
3.6Optional components
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 45