Learning Advanced Features
120
890054-00-00
GM2 Series VFD
Sensorless Vector Control Operation Setting Details for Induction Motors
Code and
Features
Description
Cn.09 PreExTime
Sets pre-excitation time. Pre-excitation is used at the start of the
operation to
perform excitation up to the motor’s rated flux.
Cn.10 Flux Force
Allows for the reduction of the pre-excitation time. The motor flux
increases up to the rated flux with the time constant as shown in
the following figure.
To reduce the time taken to reach the rated flux, a higher motor
flux base value than the rated flux must be provided. When the
magnetic flux reaches the rated flux, the provided motor flux base
value is reduced.
Cn.11 Hold Time
Sets the zero-speed control time (hold time) after deceleration in
the stopped position. The output is blocked after the Hold Time.
For details of the following parameter settings, refer to
Cn.21 Out Trq. Comp.
Gain at Low Spd
Cn.21 has an effect on the low-speed operations.
.
Cn.22 ScaleOut Trq.
Comp. Gain
Cn.22 is related to the torque load quantity that can be produced
by the inverter
.
Cn.23 Spd. Comp. Sub
Gain
Cn.23 has an effect on the motor speed.
Cn.24 Spd. Comp.
Main Gain
Cn.24 has an effect on the motor speed.
Cn.29 Spd. Comp. Gain
at No-load
Cn.29 mostly has an effect on the error level of the estimated
frequency during no load.
Cn.30 Spd. Response
Adjustment Gain
Cn.30 is the value that is mainly changed according to the load
inertia.
Summary of Contents for RSi GM2 Series
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Page 58: ...48 GM2 Series VFD Perform Basic Operations 890054 00 00...
Page 122: ...Learning Advanced Features 112 890054 00 00 GM2 Series VFD PID control block diagram...
Page 188: ...Learning Protection Features 178 GM2 Series VFD 890054 00 00...
Page 279: ...Technical Specification 269 890054 00 00 GM2 Series VFD...
