Per Unit Of System Inertia; Low-Speed Bandwidth; High-Speed Bandwidth, Zero-Speed Bandwidth; Pdff Gain Value - Delta VFD-VE User Manual

Chapter 4 Parameters
PI
10-21
10-22
10-04
10-05
10-06
5Hz
10-07
0H z
PI adjus tment-manual gain
 Per Unit of System Inertia
11-01
Control
FOCPG TQCPG
mode
Settings

To get the system inertia from Pr.11-01, user needs to set Pr.11-00 to bit1=1 and execute
continuous forward/reverse running.
 Low-speed Bandwidth
11-02
Control
VFPG FOCPG TQCPG
mode
Settings
 High-speed Bandwidth
11-03
Control
VFPG FOCPG TQCPG
mode
Settings
 Zero-speed Bandwidth
11-11
Control
VFPG FOCPG TQCPG
mode
Settings

After estimating inertia and set Pr.11-00 to bit 0=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.
 PDFF Gain Value
11-04
Control
FOCPG
mode
4-182
5Hz
10-08
1 to 65535 (256=1PU)
0 to 40Hz
0 to 40Hz
0 to 40Hz
PI
Pr .11-11
use to adjust the
strength of z ero-
ser vo loc k
11-02
11-03
5H z
Hz
0Hz
PI adjus tment-auto gain
1. Pr . 11-01 v alue
2. set Pr.11-00 to bi t 0=1
5Hz
10-08
Factory Setting: 400
Factory Setting: 10
Factory Setting: 10
Factory Setting: 10
Factory Setting: 30
H z
Unit: 1
Unit: 1
Unit: 1
Unit: 1
Unit: 1