Lenze E94AxPExxxx - Manual (Page 575)

Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
575
12 Basic drive functions
12.12 Brake control
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12.12.5.3 Process when brake is closed
The following process occurs if the enable of the requested basic function for traversing the drive is
deactivated again:
1. The drive is brought to standstill via the basic function " Stop ", or, where required, also via the
basic function " Quick stop ".
2. When speed setpoint and actual speed value have fallen below the speed threshold set in
C02581 :
• The output BRK_bReleaseBrakeOut is set to FALSE for closing the brake.
• The current torque is saved, so that, if necessary, it can be used for feedforward control
during the next start.
• Monitoring of the motor brake control module is deactivated temporarily.
• Monitoring of the status input is deactivated temporarily (if switched active via
C02583 ).
• The brake application time starts to expire.
3. After the brake closing time has elapsed and the corresponding state change of the status
signal:
• The output BRK_bBrakeReleased is reset to FALSE.
• The controller inhibit is activated.
4. After the additional waiting time set for the status monitoring in C02591 has elapsed:
• Monitoring of the motor brake control module is active again.
• Monitoring of the status input is active again (if switched active via
C02583 ).
• Standstill monitoring is activated.  Standstill monitoring ( 558)