Delta VFD-ED Series User Manual

12 Descriptions of Parameter Settings | VFD-ED
12-11-3
Load /
Motor
IM PM
Without load
40
10
With load
80–120
40

Zero speed Bandwidth
Control Mode FOCPG FOCPM
Default: 10
Settings 1–40 Hz

Low speed Bandwidth
Control Mode FOCPG FOCPM
Default: 10
Settings 1–40 Hz

High speed Bandwidth
Control Mode FOCPG FOCPM Default: 10
Settings 1–40 Hz
 After estimating the inertia and setting Pr.11-00 =1 (auto-tuning), you can adjust parameters Pr.11-06,
Pr.11-07 and Pr.11-08 separately by speed response. The larger the value, the faster the response. Pr.10-
17 is the switch frequency between the low speed and high speed bandwidth.

PDFF Gain Value
Control Mode FOCPG FOCPM Default: 30
Settings 0–200%
 After you estimate and set Pr.11-00=1 (auto-tuning), use Pr.11-09/11-10 to reduce overshoot. Adjust the
PDFF gain value according to the actual situation.
 In addition to traditional PI control, it also provides the PDFF function to reduce overshoot for speed
control.
1. Get system inertia
2. Set Pr.11-00 to 1
3. Adjust Pr.11-09 and Pr.11-10 (a larger value suppresses overshoot better). Adjust according to the
actual condition.
PI
PDFF
It is recommended to disable
this function (Pr.11-09=0) for
Y/
connection switch and
ASR1/ASR2 switch application.

Speed Feed Forward Gain
Control Mode FOCPG FOCPM Default: 0
Settings 0–500
 Pr.11-09 and Pr.11-10 are enabled when Pr.11-00 is set to Bit 0 = 1.

Delta VFD-ED Series Specifications

General

Brand	Delta
Model	VFD-ED Series
Category	DC Drives
Language	English