B5: pi control, B.3 b: application &ndash; Yaskawa AC Drive Z1000 Bypass Technical Manual User Manual

b3-09

(199)

Current Control Integral

Time during Speed Search

(Speed Estimation Type)

Srch ACR I Time

Sets the Integral Time for the current controller during Speed Search.

Default: 2.0 ms

Min.: 0.0

Max.: 1000.0

b3-10

(19A)

Speed Search Detection

Compensation Gain

Srch Detect Comp

Sets the gain which is applied to the speed detected by Speed Estimation Speed

Search before the motor is reaccelerated. Increase this setting if ov occurs

when performing Speed Search after a relatively long period of baseblock.

Default: 1.05

Min.: 1.00

Max.: 1.20

b3-11

(19B)

Speed Search Method

Switching Level (Speed

Estimation Type)

Srch Mthd Sw Lvl

Uses the amount of voltage remaining in the motor to automatically switch

the search method within the type of speed measurement.

(208 Vac at 100% = 208 V, and 480 Vac at 100% = 480 V)

Default: 5.0%

Min.: 0.5

Max.: 100.0

b3-12

(19C)

Minimum Current Detection

Level during Speed Search

Srch I Deadband

Sets the minimum current detection level during Speed Search. Increase this

setting value in increments of 0.1 if the drive fails to perform Speed Estimation.

Default:

<1>

Min.: 2.0

Max.: 10.0

b3-14

(19E)

Bi-Directional Speed Search

Selection

Bidir Search Sel

0: Disabled

(uses the direction of the frequency reference)

1: Enabled

(drive detects which way the motor is rotating)

Default: 1

Range: 0, 1

b3-17

(1F0)

Speed Search Restart

Current Level

SrchRestart Lvl

Sets the Speed Search restart current level as a percentage of the drive rated

current.

Default: 110%

Min.: 0

Max.: 200

b3-18

(1F1)

Speed Search Restart

Detection Time

SrchRestart Time

Sets the time to detect Speed Search restart.

Default: 0.10 s

Min.: 0.00

Max.: 1.00

b3-19

(1F2)

Number of Speed Search

Restarts

Num of SrchRestr

Sets the number of times the drive can attempt to restart when performing

Speed Search.

Default: 3

Min.: 0

Max.: 10

b3-24

(1C0)

Speed Search Method

Selection

SpdSrch Method

0: Current Detection

0: CurrentDetection

1: Speed Estimation

Default: 0

Range: 0, 1

b3-25

(1C8)

Speed Search Wait Time

SpdSrch WaitTime

Sets the time the drive must wait between each Speed Search restart attempt. Default: 0.5 s

Min.: 0.0

Max.: 30.0

b3-27

(1C9)

Start Speed Search Select

Start srch sel

Selects a condition to activate Speed Search Selection at Start (b3-01) or

External Speed Search Command 1 or 2 from the multi-function input.

0: Triggered when a Run command is issued.

0: start from 0

(normal).

1: Triggered when an external baseblock is released.

1: Start Fref>Fmin

Default: 0

Range: 0, 1

<1> Default setting is dependent on parameter o2-04, Drive Model Selection.

b5: PI Control

No.

(Addr.

Hex)

Name

Description

Values

Page

b5-01

(1A5)

PI Function Setting

PI Mode

0: Disabled

1: Enabled

1: Enabled D=Fdbk

(PI output becomes output frequency reference)

3: Enabled

3: Fref+PID D=Fdbk

(PI output added to frequency reference)

Default: 0

Range: 0, 1, 3

b5-02

(1A6)

Proportional Gain Setting

(P)

PI Gain

Sets the proportional gain of the PI controller.

Default: 2.00

Min.: 0.00

Max.: 25.00

b5-03

(1A7)

Integral Time Setting (I)

PI I Time

Sets the integral time for the PI controller.

Default: 0.5 s

Min.: 0.0

Max.: 360.0

b5-04

(1A8)

Integral Limit Setting

PI I Limit

Sets the maximum output possible from the integrator as a percentage of the

maximum output frequency.

Default: 100.0%

Min.: 0.0

Max.: 100.0