LEESON PWM DC Control: 174299 - Manual (Page 33)

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Symptom Possible Causes Suggested Solutions
Motor runs too fast at
maximum speed setting or
minimum speed setting.
MIN SPD and MAX SPD set-
tings are too high. Recalibrate MIN SPD and MAX SPD.
Motor will not reach the
desired speed. Battery voltage too low.
MAX SPD setting is too low.
IR COMP setting is too low.
Motor is overloaded.
Drive is reaching over tempera-
ture trip.
Charge batteries.
Increase MAX SPD setting.
Increase IR COMP setting.
Check motor load. Resize the motor
and drive if necessary. Check red fault
LED status.
Check motor load. Resize the motor or
enclosure.
Motor pulsates or surges
under load. IR COMP is set too high.
Control is in current limit mode.
Adjust the IR COMP setting slightly
CCW until the motor speed stabilizes.
Check that motor and drive are of suf-
ficient horsepower and current rating.