Chapter 12 Description of Parameter SettingsC2000 Plus
12.2-45
Load operation adjustment
8. Operation test with load
B1. Low-frequency loading capacity test
a. If the low-frequency loading performance is low, increase Pr.10-31 (I/F mode, current
command) and Pr.10-58 (mutual inductance compensation gain).
b. If the low-frequency loading speed presents large plummet, or the output frequency
presents low-frequency vibration, adjust Pr.11-03 (ASR1 low-speed bandwidth) and
Pr.10-33 (PM FOC sensorless speed estimator bandwidth). Increase the setting to
improve the response when the speed drops too much at transient load. Decrease the
setting if the frequency presents an extreme vibration at stable load.
B2. High frequency loading capacity test
a. If the high frequency loading performance is insufficient, increase Pr.10-55 (Magnetic
flux linkage estimate high-speed gain) and Pr.10-56 (Kp of phase-locked loop).
b. If there is large plummet of loading speed, or the output frequency vibrates, adjust Pr.11-
04 (ASR2 high-speed bandwidth), Pr.10-55 (magnetic flux linkage estimate high-speed
gain) and Pr.10-56 (Kp of phase-locked loop). Increase the setting to improve the
response when the speed drops too much at transient load. Decrease the setting if the
frequency presents an extreme vibration at stable load.
B3. Operation frequency exceeds the rated frequency
a. When there is a waveform of speed and current in the flux-weakening zone, and an oc
or ov fault occurs during the deceleration, adjust Pr.01-51 (flux-weakening overload stall
prevention time) and Pr.10-31 (I/F mode current command).
SynRM Sensorless adjustment parameters
Refer to Section 12-1 Description of Parameter Settings for more details
Parameter Description Unit Default Settings
00-10 Control mode 0 0–2
00-11 Speed control mode 0 0–8
00-17 Carrier frequency kHz 4 4–8
01-51 Flux-weakening overload stall prevention time Sec. 1.00 0.00–600.00
05-00 Motor parameter auto-tuning 0 0–13
05-33
Induction motor (IM) or permanent magnet
synchronous AC motor (PM) selection
3 0–3
05-34
Full-load current for a permanent magnet
synchronous AC motor / reluctance motor
Amps NA NA
05-35
Rated power for a permanent magnet
synchronous AC motor / reluctance motor
kW NA 0–655.35
05-36
Rated speed for a permanent magnet
synchronous AC motor / reluctance motor
rpm NA 0–65535
05-37
Number of poles for a permanent magnet
synchronous AC motor / reluctance motor
NA 0–65535
05-38
System inertia for a permanent magnet
synchronous AC motor / reluctance motor
Kg-cm
2
NA 0.0~6553.5
05-39
Stator resistance for a permanent magnet
synchronous AC motor / reluctance motor
ohm 0.000
0.000–
65.535
To Next Page
Loading...
