Factory tuning: c8 – Yaskawa G5HHP Drive User Manual

Page 281

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8.2 Programming Mode Constants

8 - 15

J

Factory Tuning: C8

C

t t

Name

S tti

F t

Change

Control Methods

Constant

Number

Display

Description

Setting

Range

Factory

Setting

Change

during

Opera-

tion

V/f

V/f

with

PG

Open

Loop

Vector

Flux

Vector

Page

C8-08

AFR gain

Sets the internal speed feedback

detection control section as a ratio.
;

Usually setting is not necessary.

Adjust in the following circum-

stances:

S

When hunting occurs, increase 0.00 to

1 00

x

x

x

A

x

7 5

C8-08

AFR Gain

When hunting occurs, increase

the set values.

S

When responsiveness is low, de-

crease the set values.

Change the responsiveness in 0.05

units at a time, checking after each

change.

0.00 to

10.00

1.00

x

x

x

A

x

7 - 5

C8-09

Speed Feedback

Detection Limit (ARF)

Time

S

Increase setting if hunting occurs.

S

Decrease setting if response is

0 to

2000

50

x

x

x

A

x

----

AFR Time

g

p

poor.

2000

C8-30

Carrier frequency

selection during auto-

tuning

0: Carrier frequency is set to

2.0 kHz.

1: Carrier frequency is set to a value

0, 1

0

x

x

x

A

x

----

Carrier in tune

1: Carrier frequency is set to a value

as set in C6-01.

8

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