Chapter 4 Parameters

H

01-08

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

01-05 01-08

04-26 04

-27

04-28

04

-29

01

-00

AI1 Gain

04-13

04-14

04

-15

04

-16

04

-17

 

 

 

AI2 Gain

04-18

04-19

04

-20

04

-21

04

-22

 

 

 

04 - 23

Analog Input Delay AI1

Unit: 0.01

04 - 24

Analog Input Delay AI2

Unit: 0.01

 

Settings

0.00 ~ 10.00 Sec

Factory Setting: 0.50

 

 

 

 

These parameters select the time constant for the analog input signal filter. A properly

adjusted time constant may help filter noise on the analog input terminals.

If the input delay is set too long, the system may experience oscillation. Be careful setting

these parameters.

04 - 25 Summation of External Frequency Sources

Factory Setting: 00

Settings

00: disabled

 

01: AI1*(AI1 Gain)+AI2*(AI2 Gain)

 

02: AI1*(AI1 Gain)-AI2*(AI2 Gain)

 

03: AI1*(AI1 Gain)*AI2*(AI2 Gain)

 

04: Reserved

 

05: Communication master frequency +AI1*(AI1 Gain)

 

06: Communication master frequency +AI2*(AI2 Gain)

 

07: Max (AI1*(AI1 Gain), AI2*(AI2 Gain))

 

 

This parameter selects the terminals used for summation of the External Frequency Sources.

Setting 07 is used to compare AI1*(AI1 Gain) with AI2*(AI2 Gain). If AI1*(AI1 Gain) > AI2*(AI2

Gain), it indicates that command source is from AI1, otherwise is from AI2.

4-44

Revision July 2008, EG03, SW V1.06

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Delta Electronics VFD-G manual Max AI1*AI1 Gain, AI2*AI2 Gain