Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 217)

L
Firmware 1.37 - 09/2006 217
9400 HighLine | Parameter setting & configuration
Basic drive functions
Brake control | Parameter setting
9.11.1.5 Brake time response
Closing and opening time
[9-12] Definition of the closing and opening time of the brake
Motor magnetising time (only for asynchronous motor)
[9-13] Consideration of the motor magnetising time
Danger!
A wrong setting of the closing and opening time can cause a wrong activation of
the brake!
• When the closing time is set too low, the controller is inhibited and the drive
gets torqueless before the brake is closed completely.
n C02589 : Brake closing time
o C02590 : Brake opening time
CINH = controller inhibit
r Every mechanical brake has a
construction-conditioned closing and
opening time which must be
considered by the brake control and
must be set in C02589 and C02590 .
r The closing and opening time of a
Lenze holding brake can be found in
the corresponding Operating
Instructions in chapter "Technical
data".
r If the closing and opening time is set
too high, it is not critical with regard to
safety but results in needlessly long
delays in cyclic braking processes.
t
t
Œ 
t
CINH
t
Stopping/Standstill
BRK_bReleaseBrakeOut
n Motor magnetising time
CINH = controller inhibit
r In an asynchronous motor the required
magnetic field is created (is already
available in synchronous motors) after
the controller inhibit is deactivated.
r The brake will only be released if the
actual torque has reached 90 % of the
precontrol torque.
t
t
Œ
t
CINH
t
Stopping/Standstill
BRK_bReleaseBrakeOut