B3: speed search – Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 417
No.
(Addr.
Hex)
Name
Description
Values
Page
b2-04
(18C)
DC Injection Braking Time
at Stop
Sets DC Injection Braking time at stop.
Default: 0.50 s
Min.: 0.00
Max.: 10.00
u
b3: Speed Search
No.
(Addr
Hex.)
Name
Description
Values
Page
b3-01
(191)
Speed Search Selection at
Start
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
b3-02
(192)
Speed Search Deactivation
Current
Sets the current level at which the speed is assumed to be detected and Speed
Search is ended. Set as a percentage of the drive rated current.
Default: 120%
Min.: 0
Max.: 200
b3-03
(193)
Speed Search Deceleration
Time
Sets output frequency reduction time during Speed Search.
Default: 2.0 s
Min.: 0.1
Max.: 10.0
b3-04
(194)
V/f Gain during Speed
Search
Determines how much to lower the V/f ratio during Speed Search.
Output voltage during Speed Search equals the V/f setting multiplied by b3-04.
Default:
<1>
Min.: 10%
Max.: 100%
b3-05
(195)
Speed Search Delay Time
When using an external contactor on the output side, b3-05 delays executing
Speed Search after a momentary power loss to allow time for the contactor to
close.
Default: 0.2 s
Min.: 0.0
Max.: 100.0
b3-06
(196)
Output Current 1 during
Speed Search
Sets the current injected to the motor at the beginning of Speed Estimation
Speed Search. Set as a coefficient for the motor rated current.
Default:
<1>
Min.: 0.0
Max.: 2.0
b3-07
(197)
Output Current 2 during
Speed Search (Speed
Estimation Type)
Sets the amount of output current during Speed Estimation Speed Search as a
coefficient for the no-load current.
Default:
<1>
Min.: 0.0
Max.: 5.0
b3-08
(198)
Current Control Gain during
Speed Search (Speed
Estimation Type)
Sets the proportional gain for the current controller during Speed Search.
Default: 0.8
Min.: 0.00
Max.: 6.00
b3-10
(19A)
Speed Search Detection
Compensation Gain
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
b3-12
(19C)
Minimum Current Detection
Level during Speed Search
Sets the minimum current detection level during Speed Search.
Default: 6.0
Min.: 2.0
Max.: 10.0
b3-14
(19E)
Bi-Directional Speed Search
Selection
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
Sets the Speed Search restart current level as a percentage of the drive rated
current.
Default: 150%
Min.: 0
Max.: 200
b3-18
(1F1)
Speed Search Restart
Detection 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
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
0: Current Detection
1: Speed Estimation
Default: 0
Range: 0, 1
b3-25
(1C8)
Speed Search Wait Time
Sets the time the drive must wait between each Speed Search restart attempt. Default: 0.5 s
Min.: 0.0
Max.: 30.0
b3-26
(1C7)
Direction Determining
Level
Sets the level that determines the direction of motor rotation.
Default:
<1>
Min.: 40
Max.: 60000
b3-27
(1C9)
Start Speed Search Select
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 (normal).
1: Triggered when an external baseblock is released.
Default: 0
Range: 0, 1
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
B.3 b: Application
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual
417
B
Parameter List