BENSHAW RSi GM2 Series, Instruction Manual

Page: 133 / 282

Learning Advanced Features
890054-00-00
GM2 Series VFD 123
Problem
Relevant
Function Code
Troubleshooting
If low speed (3 Hz or
less) out-of-phase
occurs because the
inertia of load is high.
Cn.30 Spd.
Response
Adjustment Gain Sometimes control is not possible under a low
speed due to high load inertia. In this case,
increase the Cn.30 value by 1 unit at a time.
If motor rotation count
error margin occurs
during no load
Cn.29 Spd. Comp.
Gain at No-load
If over 10 RPM of motor rotation count error
occurs during no load operation, adjust the
Cn.29 value by 0.01 unit at a time.
If speed response is
required
Cn.30
Spd.Response
Adjustment Gain
Although the speed response is improved the
greater the Cn.30 value, speed control may
become unstable. Excessive setup may cause
an inverter trip.