Operating Instructions

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
184 List Manual, 04/2018, A5E33838102
Description: Sets the monitoring time for the standstill identification.
When braking with OFF1 or OFF3, standstill is identified after this time has expired, after the setpoint speed has
fallen below p1226 (also refer to p1145).
Dependency: The parameter is pre-assigned depending on the size of the power unit.
Refer to: p1226
Notice: For p1145 > 0.0 (RFG tracking) the setpoint is not equal to zero dependent on the selected value. This can therefore
cause the monitoring time in p1227 to be exceeded. In this case, for a driven motor, the pulses are not suppressed.
Note: Standstill is identified in the following cases:
- the speed actual value falls below the speed threshold in p1226 and the time started after this in p1228 has expired.
- the speed setpoint falls below the speed threshold in p1226 and the time started after this in p1227 has expired.
For p1227 = 300.000 s the following applies:
Monitoring is deactivated.
For p1227 = 0.000 s, the following applies:
With OFF1 or OFF3 and a ramp-down time = 0, the pulses are immediately suppressed and the motor "coasts" down.
Once the Control Unit has been booted up for the first time or if the factory settings have been defined accordingly,
the parameter is defined in accordance with the power unit.
Description: Sets the delay time for pulse suppression.
After OFF1 or OFF3, the pulses are canceled, if at least one of the following conditions is fulfilled:
- the speed actual value falls below the threshold in p1226 and the time started after this in p1228 has expired.
- the speed setpoint falls below the threshold in p1226 and the time started after this in p1227 has expired.
Dependency: Refer to: p1226, p1227
Description: Sets the signal source to activate DC braking.
Dependency: Refer to: p1231, p1232, p1233, p1234, r1239
Note: 1 signal: DC braking activated.
0 signal: DC braking deactivated.
p1227 Zero speed detection monitoring time / n_standst t_monit
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.000 [s] 300.000 [s] 300.000 [s]
p1228 Pulse suppression delay time / Pulse suppr t_del
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: 8022
Min Max Factory setting
0.000 [s] 299.000 [s] 0.010 [s]
p1230[0...n] BI: DC braking activation / DC brake act
Access level: 2 Calculated: - Data type: U32 / Binary
Can be changed: U, T Scaling: - Dyn. index: CDS, p0170
Unit group: - Unit selection: - Func. diagram: 7017
Min Max Factory setting
- - 0