KEB COMBIVERT F4-F Applications Manual page 182

Functional Description
Examples of brake control
Setpoint is maintained
internally on 0 min
Speed hysteresis LE.37
Rotation direction F or R
Actual speed < Speed hysteresis
Chapter Section Page
6 8 4
Deactivation of modulation
If the modulation is switched off (e.g. through control release or error), the brake
engages immediatle without a delay time.
Modulation off
e.g. by switching off the
control release or by error
Brake control
Modulation on
-1
Speed controlled operation
In case of missing rotation setting (status 'LOW SPEED') and a actual speed value
smaller than the speed hysteresis LE.37, the delay time of the brake expires. (Attention:
For the speed hysteresis a value of ≥ 15 min
the brake never engages at the smallest speed fluctuations). After expiration of the
delay time the brake application time starts, only after that the modulation is disabled.
Release time
LE.67
Actual speed
Brake control
Modulation on
Date Name: Basis
19.05.99 KEB COMBIVERT F4-F
Special Functions
LE.67
Brake
release rime
-1
should be adjusted, since otherwise
Delay time Application
LE.66 time LE.68
© KEB Antriebstechnik, 1999
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