Delta VFD300C43S-HS User Manual page 453

Induction motor system inertia (unit: kg-cm
Rated power
[HP] [kW]
30 22
40 30
50 37
60 45
75 56
100 75
120 89
The base value for PM system inertia is set by Pr.05-38 and the unit is in kg-cm
ASR1 / ASR2 Switch Frequency

Settings

The upper limit is the same as the maximum operation frequency for Pr.01-00.

Sets the low-speed and high-speed ASR switching point in the FOC area. Provides flexibility to
meet two needs: in the high-speed region of the estimator switch point it has a high response,
and in the low-speed region of the estimator switch point it has a lower response. The
recommended switching point is higher than Pr.10-39.

A low setting does not cover Pr.10-39. If the setting is too high, the high-speed range is too
narrow.
ASR1 Low-speed Bandwidth

Settings
ASR2 High-speed Bandwidth

Settings
Zero-speed Bandwidth

Settings
 After estimating inertia and setting Pr.11-00 bit0=1 (auto-tuning), you can adjust Pr.11-03,
Pr.11-04 and Pr.11-05 separately according to the speed response. The larger the setting value,
the faster the response. Pr.11-02 is the switch frequency for the low-speed / high-speed
bandwidth.
 The position control pulse command (MIx=37) and P2P position control Kp gain can adjust
Pr.11-05. The higher the value, the lower the steady-state error.
ASR 1 Gain

Settings
Rated power
Inertia
[HP] [kW]
17.6 150
20.2 175
35.5 215
41.0 250
49.4 300
105.6 375
127.5 420
5.0–1500.0 Hz
1–40Hz (IM) / 1–100Hz (PM)
1–40Hz (IM) / 1–100Hz (PM)
1–40Hz (IM) / 1–100Hz (PM)
0–40 Hz (IM) / 1–100Hz (PM)
Chapter 12 Description of Parameter SettingsC2000-HS
2 ):
Inertia
112 190.0
130 215.0
160 280.0
186 355.0
224 513.9
279 598.1
313 705.3
12.1-11-4
Rated power
Inertia
HP kW
475 354 964.3
535 399 1073.4
2 .
Default: 7.0
Default: 10
Default: 10
Default: 10
Default: 10