4 brake activation in automatic operation, 11 basic drive functions – Lenze 9400 User Manual
Page 527
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
527
11
Basic drive functions
11.12
Brake control
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11.12.2.4 Brake activation in automatic operation
Brake activation through N < N
min
[11-33] Process of brake activation through N < Nmin
should be set to approx. 5 ... 20 % of the maximum speed to minimise
the wear of the brake and also provide for an optimum braking behaviour by a low grinding
of the brake.
Speed setpoint
Actual speed value
: Brake activation threshold
• If the motor speed falls below the
threshold for brake activation set in
, the function "Close brake" is
activated in the automatic operation
(mode 2/12).
• Here only the absolute value of the motor
speed is considered, the direction of
rotation remains unconsidered.
• In manual operation (mode 1/11)
has no function.
t
t
t
0
1
n
Standstill
BRK_bReleaseBrakeOut
t
Stopping