Siemens SINUMERIK 840D sl Function Manual page 406

Data descriptions
9.2 Parameters for SINAMICS S120
p1227 Standstill detection monitoring time
Sets the monitoring time for standstill detection.
When braking with OFF1 or OFF3, standstill is detected after this time has expired,
after the setpoint speed p1226 has been fallen below (also see p1145).
The brake control is then started, the system waits for the closing time in p1217
and the pulses are canceled.
See also: p1215, p1216, p1217, p1226
Notice: For p1145 > 0.0 (RFG tracking), depending on the set value, the setpoint
is not equal to zero. This can therefore result in the monitoring time in p1227 being
exceeded. For motor that is being driven, in this case, the pulses are not canceled.
Note:
Standstill (zero speed) is detected in the following cases:
for p1227 = 300.000 s, the following applies:
Monitoring is deactivated.
For p127 = 0.000 s, the following applies:
With OFF1 or OFF3 and a ramp-down time = 0, pulses are immediately suppressed
and the motor coasts to a standstill.
Unit: Default value:
s 4.000
p1228 Pulse suppression delay time
Sets the delay time for pulse cancellation.
The pulses are suppressed after OFF1 or OFF3 when at least one of the following
conditions has been satisfied:
- the actual speed value falls below the speed threshold in p1226 and the time
started in p1228 has expired.
- the speed setpoint falls below the speed threshold in p1226 and the time started
in p1277 has expired.
See also: p1216, p1227
Notice: When the motor holding brake is activated, pulse cancellation is additionally
delayed by the brake closing time (p1217).
Unit: Default value:
s 0.000
p1532[0...n] CO: Torque limit, offset / CO: Force offset, force limit
Sets the torque offset for the torque limit.
Sets the force offset for the force limit.
See also: p1520, p1521, p1522, p1519
Notice: A BICO interconnection to a parameter that belongs to a drive data set
always acts on the effective data set.
Unit: Default value:
Nm, N -
406
Minimum value: Maximum value:
0.000 300.000
Minimum value: Maximum value:
0.000 299.000
Minimum value: Maximum value:
-100000.00 [Nm] 100000.00 [Nm]
-100000.00 [N] 100000.00 [N]
Checksum: Protection level:
2
Data type: Effectiveness:
Floating Point32 POWER ON
Checksum: Protection level:
2
Data type: Effectiveness:
Floating Point32 POWER ON
Checksum: Protection level:
3
Data type: Effectiveness:
Floating Point32 POWER ON
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated