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Parameter

List

1.5 b: Application

YASKAWA

TOEPYAIGA8002B GA800 Drive Programming

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

b3-14

(019E)

Bi-directional Speed
Search

Sets the direction of Speed Search to the direction of the frequency reference or in the
motor rotation direction as detected by the drive.

0 : Disabled

1 : Enabled

Note:

•

Refer to page

125

for information about the initial value of

b3-14 [Bi-directional

Speed Search]

that applies when you set these parameters:

–

A1-02 = 0, 2, 8 [Control Method Selection = V/f, OLV, EZOLV]

–

E9-01 = 0 [Motor Type Selection = Induction (IM)]

–

b3-24 = 1 [Speed Search Method Selection = Speed Estimation Speed Search]

•

The initial value of

b3-14

is 0 when you set these parameters:

–

A1-02 = 0, 2, 8

–

E9-01 = 0

–

b3-24 = 2 [Current Detection 2]

•

Refer to page

125

for information about the initial value of

b3-14

that applies when

you set these parameters:

–

A1-02 = 1, 4, 8 [CL-V/f, AOLV, EZOLV]

–

E9-01 = 1, 2 [Permanent Magnet (PM), Synchronous Reluctance (SynRM)]

•

When you change

A1-02

b3-24

, and

E9-01

, also set

b3-14

Determined by A1-02 and

b3-24

(0, 1)

216

b3-17

(01F0)

Expert

Speed Est Retry Current
Level

Sets the current level for the search retry function in Speed Estimation Speed Search as a
percentage where drive rated current is a setting value of 100%.

150%

(0 - 200%)

216

b3-18

(01F1)

Expert

Speed Est Retry
Detection Time

Sets the length of time that the drive will wait to retry Speed Estimation Speed Search
when too much current flow stopped the Speed Search.

0.10 s

(0.00 - 1.00 s)

217

b3-19

(01F2)

Speed Search Restart
Attempts

Sets the number of times to restart Speed Search if Speed Search does not complete.

3 times

(0 - 10 times)

217

b3-24

(01C0)

Speed Search Method
Selection

Sets the Speed Search method when you start the motor or when you return power after a
momentary power loss.

Note:

•

The default setting is different for different control methods.

–

A1-02 = 0, 2 [Control Method Selection = V/f, OLV]

: 2

–

A1-02 = 1 [CL-V/f]

: 1

–

A1-02 = 8 [EZOLV]

and

E9-01 = 0 [Motor Type Selection = Induction (IM)]

: 2

–

A1-02 = 8

and

E9-01 ≠ 0

: 1

•

Set

b3-24 = 1

. If

b3-24 = 2

, the drive will detect

oPE08 [Parameter Selection

Error]

(1, 2)

217

b3-25

(01C8)

Expert

Speed Search Wait Time

Sets the length of time the drive will wait to start the Speed Search Retry function.

0.5 s

(0.0 - 30.0 s)

217

b3-26

(01C7)

Expert

Direction Determination
Level

Sets the level to find the motor rotation direction. Increase the value if the drive cannot
find the direction.

1000

(40 to 60000)

218

b3-27

(01C9)

Expert

Speed Search RUN/BB
Priority

Sets the conditions necessary to start Speed Search.

0 : SS Only if RUN Applied Before BB

1 : SS Regardless of RUN/BB Sequence

(0, 1)

218

b3-29

(077C)

Expert

Speed Search Back-EMF
Threshold

Sets the induced voltage for motors that use Speed Search. The drive will start Speed
Search when the motor induced voltage level is the same as the setting value. Usually it is
not necessary to change this setting.

10%

(0 - 10%)

218

b3-31

(0BC0)

Expert

Spd Search Current
Reference Lvl

Sets the current level that decreases the output current during Current Detection Speed
Search.

1.50

(1.50 - 3.50)

218

b3-32