Closing The Brake - Siemens SINAMICS S120 Commissioning Manual

Commissioning
5.10 Configuring brake control
5.10.1.3

Closing the brake

Overview
The following describes how you can set conditions and commands for the forced closing of the
holding brake.
Parameterizing the "Close brake" command
To set the parameters that influence the closing of the brake, proceed as follows:
1. Enter the speed threshold at which "Standstill" is identified when the threshold is undershot
in the "Threshold" (p1226) field.
When this threshold is undershot, the brake control is started and the closing time in p1217
awaited. The pulses are then suppressed.
2. Enter the delay time for pulse suppression in the "Delay time" (p1228) field.
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 threshold in p1226 and the time started in p1228
– The speed setpoint falls below the threshold in p1226 and the time started in p1227 has
3. Enter the monitoring time for standstill detection in the "Monitoring time" (p1227) field.
When braking with OFF1 or OFF3, standstill is detected after this time has expired, after the
set speed has fallen below p1226. The brake control is then started, the closing time in p1217
awaited and the pulses suppressed.
4. Interconnect the "Unconditionally close brake" (p0858) signal sink for the command to
unconditionally close the brake.
268
has expired.
expired.
Commissioning with Startdrive
Commissioning Manual, 06/2020, 6SL3097-5AA10-0BP2