Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 215)

L
Firmware 1.37 - 09/2006 215
9400 HighLine | Parameter setting & configuration
Basic drive functions
Brake control | Parameter setting
9.11.1.4 Brake activation in automatic operation
Brake activation through N < N
min
[9-10] Process of brake activation through N < Nmin
O
Tip!
The value at
C02581 is to be set to approx. 5 ... 20 % of the maximum speed to
minimise the wear of the brake and provide for an optimum brake response by a
low grinding of the brake.
speed setpoint
actual speed value
n C02581 : Brake activation threshold
r If the motor speed falls below the
threshold for brake activation set in
C02581 , the brake is automatically
triggered to close in the automatic
operation (mode 2/12).
r Here, only the absolute value of the
motor speed is considered, the
direction of rotation is disregarded.
t
t
Œ
t
0 1
n
Standstill
BRK_bReleaseBrakeOut
t
Stopping