3.5 b: Application
158 YASKAWA TOEPYAIGA8001B GA800 Drive Maintenance & Troubleshooting
No.
(Hex.)
Name Description
Default
(Range)
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)
b2-18
(0177)
Short Circuit Braking
Current
Sets the Short Circuit Braking Current as a percentage of the motor rated current.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the motor rated current.
• A1-02 = 5, 6 [OLV/PM, AOLV/PM]: E5-03 [PM Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [Motor Rated Current (FLA)]
100.0%
(0.0 - 200.0%)
◆ b3: Speed Search
No.
(Hex.)
Name Description
Default
(Range)
b3-01
(0191)
Speed Search at Start
Selection
Sets the Speed Search at Start function so the drive will do Speed Search with each Run command.
0 : Disable
1 : Enabled
Determined by A1-02
(0, 1)
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%)
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.
Note:
When A1-02 = 8 [Control Method Selection = EZOLV], this parameter takes effect only in
Expert Mode.
2.0 s
(0.1 - 10.0 s)
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)
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)
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)
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)
b3-08
(0198)
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.
Determined by A1-02 and
o2-04
(0.00 - 6.00)
b3-09
(0199)
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 when
A1-02 ≠ 5
20.0 when A1-02 = 5
(0.0 - 1000.0 ms)
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)
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