Lenze E84DSxxx - Manual (Page 310)

8 Basic drive functions (MCK)
8.4 Holding brake control
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Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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Mode 11: Manual control
In this mode, brake release and brake application can be directly controlled via the bBrkReleaseBrake
input without special logic or automatic.
• Setting pulse inhibit or controller inhibit has no influence on the bBrkReleaseOut trigger signal
for the holding brake control switching element.
• After the brake has been activated and the brake application time has expired, the controller is
inhibited automatically by the basic "Holding brake control" function.

Tip!
You can use mode 11 to easily check if the brake switches correctly.
Mode 12: Automatic control
In this mode, the brake is controlled automatically.
• If the requested speed setpoint reaches a parameterisable upper speed threshold that allows
traversing of the drive, the brake will be released and operation enabled.
• On the other hand, if speed setpoint and actual speed fall below a parameterisable lower speed
threshold, the brake will be applied under consideration of different time parameters.
• The brake will also be activated automatically if quick stop is activated in the drive, e.g. by a
device command or as response to an error, and in the event of controller inhibit or pulse inhibit.
• After automatic brake activation and expiration of the brake application time, the controller is
inhibited automatically by the basic "Holding brake control" function.

Tip!
The 2/12 mode is the usual mode to control the brake.
In this mode, the bBrkReleaseBrake input should be permanently set to FALSE unless
manual release is required.
When bBrkReleaseBrake = TRUE, the brake is permanently released and the automatic
control cannot apply the brake.
Related topics:
 TroubleQSP ( 87)
 Behaviour in case of pulse inhibit ( 320)