Per Unit Of System Inertia; Low-Speed Bandwidth; High-Speed Bandwidth; Zero-Speed Bandwidth - Delta Electronics AC Motor Drive VFD-VE Series User Manual

Chapter 4 Parameters|
PI
10-06
10-07
10-04
10-05
10-21
10-22
5Hz
0Hz
PI adjustment-manual gain
11-01

Per Unit of System Inertia

Control
FOCPG
mode
Settings
To get the system inertia from Pr.11-01, user needs to set Pr.11-00 to 2 and execute
continuous forward/reverse running.
11-02

Low-speed Bandwidth

Control
FOCPG
mode
Settings
11-03

High-speed Bandwidth

Control
FOCPG
mode
Settings
11-11

Zero-speed Bandwidth

Control
VFPG FOCPG TQRPG
mode
Settings
After estimating inertia and set Pr.11-00 to 1 (auto tuning), user can adjust parameters Pr.11-
02, 11-03 and 11-11 separately by speed response. The larger number you set, the faster
response you will get. Pr.10-08 is the switch frequency for low-speed/high-speed bandwidth.
11-04 PDFF Gain Value
Control
FOCPG
mode
Settings
4-160
5Hz
Hz
10-08
1 to 65535 (256=1PU)
0 to 40Hz
0 to 40Hz
0 to 40Hz
0 to 200%
PI
11-03
1. Pr. 11-01 value
2. set Pr.11-00 to 1
11-02
Pr.11-11
use to adjust the
strength of zero-
5Hz
servo lock
0Hz
PI adjustment-auto gain
5Hz
10-08
Factory Setting: 400
Factory Setting: 10
Factory Setting: 10
Factory Setting: 10
Factory Setting: 30
Revision August 2008, 03VE, SW V2.04
Hz
Unit: 1
Unit: 1
Unit: 1
Unit: 1
Unit: 1