Siemens SINAMICS G120D List Manual page 410

Parameters
List of parameters
p9385 SI Motion actual value sensing sensorless fault tolerance (MM) / ActVal sl tol MM
CU240D-2_DP_F Access level: 3
CU240D-2_PN_F
Can be changed: C(95)
CU250D-2_DP_F
Units group: -
CU250D-2_PN_F
Min
-1
Description: Sets the tolerance of the plausibility monitoring of the current and voltage angle.
A higher value results in a higher degree of ruggedness when reversing at low speeds, as well as in the field weak-
ening range for load steps.
An increase is advantageous, if the current or voltage at the motor become small.
Dependency: Refer to: p9507
Refer to: F30681, C30711
Notice: This parameter is overwritten by the copy function of the safety functions integrated in the drive.
Reducing this value can adversely affect the actual value sensing and the plausibility check.
When the value is increased, this results in a longer evaluation delay and a higher velocity deviation (r9787).
Note: This parameter is only effective for encoderless actual value sensing (p9506/p9306 = 1, 3).
For synchronous motors, the value 4 must be set.
If value = -1:
- for synchronous motors, the calculation is automatically made with the value 4.
- for induction motors, the calculation is automatically made with a value of 0 (if the code number of the power unit
p0201[0] < 14000, otherwise with a value of 2).
p9386 SI Motion actual value sensing sensorless delay time (P2) / ActVal sl t_del P2
CU240D-2_DP_F Access level: 3
CU240D-2_PN_F
Can be changed: C(95)
CU250D-2_DP_F
Units group: -
CU250D-2_PN_F
Min
5.00 [ms]
Description: Sets the delay time to evaluate the encoderless actual value sensing after the pulses have been enabled.
The value must be greater than or equal to the motor magnetizing time (p0346).
Dependency: Refer to: C30711
Caution: The safety functionality is only completely guaranteed after this time has expired.
Notice: This parameter is overwritten by the copy function of the safety functions integrated in the drive.
If this value is reduced, this can have a negative impact on the actual value acquisition and plausibility check – and
result in Safety message C30711 with the message value 1041 or 1042.
Note: This parameter is only effective for encoderless actual value sensing (p9506/p9306 = 1, 3).
p9387 SI Motion actual value sensing sensorless filter time (P2) / Actv sl t_filt P2
CU240D-2_DP_F Access level: 3
CU240D-2_PN_F
Can be changed: C(95)
CU250D-2_DP_F
Units group: -
CU250D-2_PN_F
Min
0.00 [µs]
Description: Sets the filter time for smoothing the actual value with sensorless actual value sensing.
Notice: This parameter is overwritten by the copy function of the safety functions integrated in the drive.
A longer filter time results in a longer response time.
1-410
Calculated: -
Scaling: -
Unit selection: -
Max
4
Calculated: -
Scaling: -
Unit selection: -
Max
1000.00 [ms]
Calculated: -
Scaling: -
Unit selection: -
Max
100000.00 [µs]
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Data type: Integer32
Dyn. index: -
Func. diagram: -
Factory setting
-1
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
100.00 [ms]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
25000.00 [µs]