Motor data and controller adjustments of the asynchronous motor
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.5 - 29
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If the drive is stopped by switching off the rotation direction release, the modulation is switched off after rea-
ching of output frequency 0.
If the drive is stopped by setting the setpoint to 0, the current is reduced to the magnetising current after rea-
ching the output frequency = 0.
At this point, the real speed of the motor is not yet 0 in some cases.
Therefore, the time for which the higher constant current is set can be increased with parameter dS.20 "ASCL
model switch-off current follow-up time".
dS.19: Limit uf-control decele-
ration
=> Switching to the frequency
controlled range
dS.20: ASCL
Model switch-off
Current follow-up time
Delay current
Magnetising current
Actual torque display
(ru.12)
Frequency (ru.03)
Speed (ru.07)
Apparent current (ru.15)
time
Attention: The torque display (ru.12) is invalid after change-over to frequency controlled operation!
ASCL / reversing
If one wants to run the drive through zero speed without stopping to change (reverse) the direction of rotation,
switching to the frequency controlled mode can be disruptive.
Therefore, this switching can be deactivated by setting bit 2 in parameter "model adjustment" (dS.18).
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