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Q What is the effect of the S-curve settings?
A Pr01-17 must be smaller than Pr01-09/01-11 and Pr01-18 must be smaller than Pr01-
10/01-12. Higher values of Pr01-17/01-18 will have no effect.
Q Why does DC-braking not work at start-up?
A When started with frequency command < F
min
, DC braking doesn’t work. The
frequency command must be >F
min
.
Acc. to the picture in the manual (Sensorless Vecotr Control Compact Drive VFD-E
Series user manual)
DC-braking should be always on when F
command
<F
min
. But that could mean that DC-braking is
on for a very long time. We took precaution to prevent this.
Q When is OH1 activated/deactivated?
A OH1 activates at 85°C. It will be deactivated at 85° - 5° = 80°C.
Q How to restart after LV?
A In the latest firmware 1.22/2.22 and higher the setting of Pr02-05 has been extended.
When Pr02-05=4, the drive restarts also when powered again during “LV” and also
during “LV” the RUN command on MI1/MI2 is interrupted. Valid when Pr02-01=1 or 2.
Q In PLC Mode, the drive always starts with [PLC1] or [PLC2] display,
despite Pr00-03 setting. Why?
A When PLC1 or PLC2 mode is activated, the setting of Pr00-03 is changed to 5, so the
start-up display is always PLC1 or 2.
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