User Manual

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
168 List Manual (LH9), 04/2014, A5E33838102B AA
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 de-activated.
Description: Setting to activate DC braking.
Value: 0: No function
4: DC braking
5: DC braking for OFF1/OFF3
14: DC braking below starting speed
Dependency: Refer to: p0300, p1232, p1233, p1234, r1239
Note: DCBRK: DC Braking
Re p1231 = 4:
The function is activated as soon as the activation criterion is fulfilled.
- the function can be superseded by an OFF2 response.
Activation criterion (one of the following criteria is fulfilled):
- binector input p1230 = 1 signal (DC braking activation, depending on the operating mode).
- the drive is not in the state "S4: Operation" or in "S5x".
- the internal pulse enable is missing (r0046.19 = 0).
DC braking can only be withdrawn (p1231 = 0) if it is not being used as a fault response in p2101.
Re p1231 = 5:
DC braking is activated if the OFF1 or OFF3 command is present. Binector input p1230 is ineffective. If the drive
speed still lies above the speed threshold p1234, then initially, the drive is ramped-down to this threshold,
demagnetized (see p0347) and is then switched into DC braking for the time set in p1233. After this, the drive is
switched-off. If, at OFF1, the drive speed is below p1234, then it is immediately demagnetized and switched into DC
braking. A change is made into normal operation if the OFF1 command is withdrawn prematurely. Flying restart must
be activated if the motor is still rotating.
DC braking by means of fault response continues to be possible.
p1228 Pulse suppression delay time / Pulse suppr t_del
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Units group: - Unit selection: - Func. diagram: 8020
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
Units group: - Unit selection: - Func. diagram: 7017
Min Max Factory setting
- - 0
p1231[0...n] DC braking configuration / DCBRK config
Access level: 2 Calculated: - Data type: Integer16
Can be changed: U, T Scaling: - Dyn. index: MDS, p0130
Units group: - Unit selection: - Func. diagram: 7014, 7016, 7017
Min Max Factory setting
0 14 0