Lenze E94AxPExxxx - Manual (Page 562)

12 Basic drive functions
12.12 Brake control
562
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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Motor magnetising time (only with asynchronous motor)
[12-36] Considering the motor magnetising time taking the PM brake as an example
 Motor magnetising time
CINH = controller inhibit
• When an asynchronous motor is used, first
the magnetic field required for the holding
torque is created (which is already
available when a synchronous motor is
used) after the controller inhibit is
deactivated.
• The brake is only released if the actual
torque has reached 90 % of the
feedforward control torque.
t
t
Œ
t
CINH
t
Stopping/Standstill
BRK_bReleaseBrakeOut
I
BRK