Siemens SINAMICS G120C DP User Manual

Procedure
1. Setting the braking power
Using p0219, you de󹪝ne the maximum braking power that the braking resistor must absorb.
3
PD[
3
W
S
P
max
Maximum braking power of the braking resistor
p021
9
Maximum braking power of the application
Figure8-67 Example of maximum braking power in an application
p0219>0 activates dynamic braking.
Boundary conditions for p0219:
– p0219 is too low:
The converter cannot fully convert the generated braking power into heat. The converter
extends the ramp-down time of the motor in order to reduce the braking power.
– p0219 > maximum braking power of the braking resistor:
The temperature monitoring of the braking resistor can trigger a converter fault.
Monitoring the temperature of the braking resistor (Page117)
Maximum braking power of the braking resistor:
Braking resistor (Page446)
The SIZER PC tool supports you when calculating the maximum braking power.
Con󹪝guring support (Page467)
2. If necessary: Reduce the activation threshold for the braking module
– Set p0212.8 = 1
– Measure the converter supply voltage.
– Enter the rated value of the converter supply voltage in p0210.
Enter the voltage value at the intended place of use of the converter, if known, in p0210.
You have now set the dynamic braking.
❒
Example
You can 󹪝nd an example for con󹪝guring and commissioning a drive with braking resistor on the
Internet:
Engineering and commissioning series lifting equipment/cranes (https://
support.industry.siemens.com/cs/de/en/view/103156155)
Advanced commissioning
8.21Electrically braking the motor
SINAMICS G120C Converters
334 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK

Siemens SINAMICS G120C DP Specifications

General

Protection Rating	IP20
Frequency Range	0 to 650 Hz
Control Modes	V/f, sensorless vector control
Communication Interfaces	PROFIBUS DP
Ambient Temperature	-10 to +50 °C (without derating), -10 to +60 °C (with derating)
Overload Capacity	150 % rated current for 60 s, 200 % rated current for 3 s
Storage Temperature	-40 to +70 °C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Output Voltage	0 V to Supply Voltage