Siemens SINAMICS S110 List Manual page 223

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.
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
SERVO_S110-CAN, Can be changed: U, T
SERVO_S110-DP,
Data type: FloatingPoint32
SERVO_S110-PN
P-Group: Functions
Not for motor type: -
Min
0.000 [s]
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).
After this, the brake control is started, the system waits for the closing time in p1217 and then the pulses are sup-
pressed.
Dependency: Refer to: p1215, p1216, p1217, p1226
Notice: For p1145 > 0.0 (RFG tracking) the setpoint is not equal to zero dependent on the selected value. This can there-
fore cause the monitoring time in p1227 to be exceeded. In this case, for a driven motor, the pulses are not sup-
pressed.
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 de-activated.
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.
p1228 Pulse suppression delay time / Pulse suppr t_del
SERVO_S110-CAN, Can be changed: U, T
SERVO_S110-DP,
Data type: FloatingPoint32
SERVO_S110-PN
P-Group: Functions
Not for motor type: -
Min
0.000 [s]
Description: Sets the delay time for pulse suppression.
After OFF1 or OFF3 and zero speed detection, the system waits for this time to expire and the pulses are then sup-
pressed.
Dependency: Refer to: p1226, p1227
Notice: If the motor holding brake is activated, the pulse suppression is only conducted if this delay time (p1228) and then
the closing time for the brake (p1217) have elapsed.
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.
© Siemens AG 2012 All Rights Reserved
SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
Calculated: -
Dynamic index: -
Units group: -
Scaling: -
Max
300.000 [s]
Calculated: -
Dynamic index: -
Units group: -
Scaling: -
Max
299.000 [s]
Parameter
List of parameters
Access level: 2
Func. diagram: 2701, 2704
Unit selection: -
Expert list: 1
Factory setting
4.000 [s]
Access level: 2
Func. diagram: 2701, 2704
Unit selection: -
Expert list: 1
Factory setting
0.000 [s]
1-223