Siemens SINAMICS G List Manual page 163

Dependency: Refer to: p1215, p1216, p1217, p1227
Note: Standstill is detected if the actual speed drops below the speed threshold in p1226 or if the monitoring time (p1227)
- started when speed setpoint <= speed threshold (p1226) - has expired.
The actual value sensing is subject to measuring noise. For this reason, standstill cannot be detected if the speed
threshold is too low.
p1227 Zero speed detection monitoring time / n_standst t_monit
VECTOR Can be changed: U, T
Data type: Floating Point
P-Group: Functions
Min
0.000 [s]
Description: Sets the monitoring time for the standstill identification.
When braking with lOFF1 or OFF3, standstill is identified after this time has expired.
After this, the brake control is started, the system waits for the closing time in p1217 and then the pulses are can-
celled.
Dependency: Refer to: p1215, p1216, p1217, p1226
Note: Standstill is detected if the actual speed drops below the speed threshold in p1226 or if the monitoring time (p1227)
- started when speed setpoint <= speed threshold (p1226) - has expired.
For p1227 = 300.000 s, the following applies:
The monitoring is deactivated.
This is the pre-setting (default setting) for SINAMICS G.
For p1227 = 0.000 s, the following applies:
With OFF1 or OFF3 and a ramp-down time = 0, the pulses are immediately cancelled and the motor "coasts" down.
p1228 Pulse cancellation delay time / Pulse canc t_del
VECTOR Can be changed: U, T
Data type: Floating Point
P-Group: Functions
Min
0.000 [s]
Description: Sets the delay time for pulse cancellation.
After OFF1 or OFF3 and zero speed detection, the system waits for this time to expire and the pulses are then can-
celed.
Dependency: Refer to: p1226, p1227
r1229 CO/BO: Motor holding brake status word / Brake ZSW
VECTOR (Extended Can be changed: -
brk)
Data type: Unsigned32
P-Group: Functions
Min
-
Description: Displays the status word for the motor holding brake.
Bit field: Bit Signal name
 Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
Data set: -
Units group: TIME
Max
300.000 [s]
Data set: -
Units group: TIME
Max
10.000 [s]
Data set: -
Units group: -
Max
-
0 signal
Parameters
Parameter list
Access level: 2
Function diagram: 2701
Unit selection: -
Factory setting
4.000 [s]
Access level: 2
Function diagram: 2701,
2704
Unit selection: -
Factory setting
0.000 [s]
Access level: 2
Function diagram: -
Unit selection: -
Factory setting
-
1 signal FP
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