Chapter 12 Description of Parameter SettingsC2000-HS
12.2-00-4
7. Select auto-tuning gain (Pr.11-00 bit0=1), adjust ASR parameters according to the speed response.
Pr.11-00 bit0 =1, use auto-tuning for ASR
Pr.11-03 ASR1 low-speed bandwidth (When the acceleration of low-speed cannot follow the
acceleration command, increase the low-speed bandwidth)
Pr.11-04 ASR2 high-speed bandwidth (When the acceleration in high speed causes vibration or
cannot follow the acceleration command, increase high-speed bandwidth)
Pr.11-05 Zero-speed bandwidth (If the response of start-up is slow or incapable, increase
zero-speed bandwidth)
The bigger the setting value for ASR bandwidth, the faster the response.
The low-speed bandwidth cannot be set too high, or the observer will diverge.
8. Adjust the setting of FOC speed observer and per-unit value of inertia (common problems)
Pr.10-25: Set up FOC bandwidth of speed observer
Situation 1. Speed command changes rapidly, but speed response cannot follow.
(Speed response is too slow→Increase the setting value)
Situation 2. The noise of the observer is too large, and causes the operation diverged.
(Speed noise is too large→Decrease)
Pr.11-01: Set up per unit of system inertia
Situation 1. The inrush current is too high at start-up, and causes an oc error.
Situation 2. An ocn error occurs during RUN or STOP, and the motor runs randomly.
a. Check Pr.11-01 whether the JM per-unit of system inertia is too large.
b. Decrease Pr.10-25 FOC bandwidth for speed observer or Pr.11-05 zero-speed
bandwidth.
9. Related parameters
Speed Control Mode
Default: 0
Settings 0: IMVF (IM V/F control)
1: IMVFPG (IM V/F control+ Encoder)
2: IM/PM SVC(IM/PM space vector control)
3: IMFOCPG (IM FOC + Encoder)
4: PMFOCPG（PM FOC + Encoder）
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