YASKAWA U1000 - B3: Speed Search

No.
(Addr.
Hex)
Name LCD Display Description Values Page
b2-08
(0190)
Magnetic Flux
Compensation Value
Field Comp
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
Sets the magnetic flux compensation as a percentage of the no-
load current value (E2-03).
Default: 0%
Min.: 0
Max.: 1000
197
<1> Default setting is determined by parameter A1-02, Control Method Selection.
u
b3: Speed Search
No.
(Addr
Hex.)
Name LCD Display Description Values Page
b3-01
(0191)
Speed Search Selection
at Start
SpdSrch at Start
0: Disabled
1: Enabled
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
0: Disabled
1: Enabled
Default:
<1>
Range: 0, 1
200
b3-03
(0193)
Speed Search
Deceleration Time
SpdSrch Dec Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f OLV
Sets output frequency reduction time during Speed Search.
Default: 2.0 s
Min.: 0.1
Max.: 10.0
200
b3-04
(0194)
V/f Gain during Speed
Search
(Speed Estimation Type)
SpdSrch V/f
V/f
OLV/PM AOLV/PM CLV/PM
V/fV/f
OLV/PM AOLV/PM CLV/PM
V/f V/f w PG OLV CLVV/f w PG OLV CLV
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:
<2>
Min.: 10%
Max.: 100%
200
b3-05
(0195)
Speed Search Delay
Time
Search Delay
All Modes
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
200
b3-06
(0196)
Output Current 1 during
Speed Search
(Speed Estimation Type)
Srch Im Lvl1
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV
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:
<2>
Min.: 0.0
Max.: 2.0
201
b3-08
(0198)
Current Control Gain
during Speed Search
(Speed Estimation Type)
Srch ACR P Gain
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f OLV
Sets the proportional gain for the current controller during
Speed Search.
There is normally no need to change this parameter from the
default setting.
Default:
<3>
Min.: 0.00
Max.: 6.00
201
b3-10
(019A)
Speed Search Detection
Compensation Gain
(Speed Estimation Type)
Srch Detect Comp
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f OLV
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
201
b3-14
(019E)
Bi-Directional Speed
Search Selection
(Speed Estimation Type,
Speed Estimation 2
Type, Current Detection
3 Type)
Bidir Search Sel
0: Disabled
1: Enabled
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV
0: Disabled (uses the direction of the frequency reference)
1: Enabled (drive detects which way the motor is rotating)
Default:
<1>
Range: 0, 1
201
b3-17
(01F0)
Speed Search Restart
Current Level
(Speed Estimation Type)
SrchRestart Lvl
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f OLV
Sets the Speed Search restart current level as a percentage of the
drive rated current.
Default: 150%
Min.: 0
Max.: 200
201
B.4 b: Application
496
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual