Siemens SINAMICS G120XA, Operating Instructions Manual, Page: 497 / 918

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.
See also: 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.
p1228 Pulse suppression delay time / Pulse suppr t_del
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: 8022
Min:
0.000 [s] Max:
299.000 [s] Factory setting:
0.010 [s]
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: See also: p1226, p1227
p1230[0...n] BI: DC braking activation / DC brake act
CUG120XA_USS (DC
braking)
Access level: 2 Calculated: - Data type: Unsigned32 / Binary
Can be changed: T, U Scaling: - Dynamic index: CDS, p0170
Unit group: - Unit selection: - Function diagram: 7017
Min:
- Max:
- Factory setting:
0
Description: Sets the signal source to activate DC braking.
Dependency: See also: p1231, p1232, p1233, p1234, r1239
Note
1 signal: DC braking activated.
0 signal: DC braking deactivated.
p1231[0...n] DC braking configuration / DCBRK config
CUG120XA_USS (DC
braking)
Access level: 2 Calculated: - Data type: Integer16
Can be changed: T, U Scaling: - Dynamic index: MDS, p0130
Unit group: - Unit selection: - Function diagram: 7014, 7016,
7017
Min:
0 Max:
14 Factory setting:
0
Parameters
7.3 Parameters
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
495