10.5 b: Application
504 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
No.
(Hex.)
Name Description
Default
(Range)
Ref.
b2-08
(0190)
Magnetic Flux
Compensation
Value
Sets how much current the drive injects when DC Injection Braking
at Start starts (Initial Excitation) as a percentage of E2-03 [Motor
No-Load Current].
0%
(0 - 1000%)
711
b2-12
(01BA)
Short Circuit Brake
Time @ Start
Sets the Short Circuit Braking time at start.
0.00 s
(0.00 - 25.50 s)
712
b2-13
(01BB)
Short Circuit Brake
Time @ Stop
Sets the Short Circuit Braking time at stop.
A1-02 = 8: 0.00 s
Other than A1-02 =
8: 0.50 s
(0.00 - 25.50 s)
712
b2-18
(0177)
Short Circuit
Braking Current
Sets the Short Circuit Braking Current as a percentage of the motor
rated current.
100.0%
(0.0 - 200.0%)
712
◆ b3: Speed Search
No.
(Hex.)
Name Description
Default
(Range)
Ref.
b3-01
(0191)
Speed Search at
Start Selection
Sets the Speed Search at Start function where the drive will perform
Speed Search with each Run command.
0 : Disabled
1 : Enabled
Determined by A1-
02
(0, 1)
716
b3-02
(0192)
SpeedSearch
Deactivation
Current
Sets the current level that stops Speed Search as a percentage of the
drive rated output current. Usually it is not necessary to change this
setting.
Determined by A1-
02
(0 - 200%)
716
b3-03
(0193)
Speed Search
Deceleration Time
Sets the deceleration time during Speed Search operation. Set the
length of time to decelerate from the maximum output frequency to
the minimum output frequency.
2.0 s
(0.1 - 10.0 s)
716
b3-04
(0194)
V/f Gain during
Speed Search
Sets the ratio used to reduce the V/f during searches to reduce the
output current during speed searches.
Determined by o2-
04
(10 - 100)
717
b3-05
(0195)
Speed Search
Delay Time
Sets the Speed Search delay time to activate a magnetic contactor
installed between the drive and motor.
0.2 s
(0.0 - 100.0 s)
717
b3-06
(0196)
Expert
Speed Estimation
Current Level 1
Sets the level of current that flows to the motor during Speed
Estimation Speed Search as a coefficient of the motor rated current.
Usually it is not necessary to change this setting.
Determined by o2-
04
(0.0 - 2.0)
717
b3-07
(0197)
Expert
Speed Estimation
Current Level 2
Sets the level of current that flows to the motor during Speed
Estimation Speed Search as a coefficient of E2-03 [Motor No-Load
Current] or E4-03 [Motor 2 Rated No-Load Current]. Usually it is
not necessary to change this setting.
1.0
(0.0 - 3.0)
717
b3-08
(0198)
Expert
Speed Estimation
ACR P Gain
Sets the proportional gain for the automatic current regulator during
Speed Estimation Speed Search. Also adjusts speed search
responsiveness. Usually it is not necessary to change this setting.
A1-02 = 0 through
4: Determined by
o2-04
, A1-02 = 5, 6, or
8: Determined by
A1-02
(0.00 - 6.00)
717
b3-09
(0199)
Expert
Speed Estimation
ACR I Time
Sets the integral time for the automatic current regulator during
Speed Estimation Speed Search. Also adjusts speed search
responsiveness. Usually it is not necessary to change this setting.
Determined by A1-
02
(0.0 - 1000.0 ms)
718
b3-10
(019A)
Expert
Speed Estimation
Detection Gain
Sets the gain to correct estimated frequencies from Speed
Estimation Speed Search.
1.05
(1.00 - 1.20)
718
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