YASKAWA GA500 Maintenance & Troubleshooting page 100

3.5 b: Application
No.
Name
(Hex.)
b3-07 Speed Estimation Current
Level 2
(0197)
Expert
b3-08 Speed Estimation ACR P
Gain
(0198)
b3-09 Speed Estimation ACR I
Time
(0199)
b3-10 Speed Estimation Detection
Gain
(019A)
Expert
b3-14 Bi-directional Speed Search
(019E)
b3-17 Speed Est Retry Current
Level
(01F0)
Expert
b3-18 Speed Est Retry Detection
Time
(01F1)
Expert
b3-19 Speed Search Restart
Attempts
(01F2)
b3-24 Speed Search Method
Selection
(01C0)
b3-25 Speed Search Wait Time
(01C8)
Expert
b3-26 Direction Determination
Level
(01C7)
Expert
b3-29 Speed Search Back-EMF
Threshold
(077C)
Expert
b3-31 Spd Search Current
Reference Lvl
(0BC0)
Expert
b3-32 Spd Search Current
Complete Lvl
(0BC1)
Expert
100
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.
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.
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.
Sets the gain to correct estimated frequencies from Speed Estimation Speed Search.
Sets the direction of Speed Search to the direction of the frequency reference or in the motor rotation
direction as detected by the drive.
0 : Disabled
1 : Enabled
Note:
• When E9-01 = 0 [Motor Type Selection = Induction (IM)] and A1-02 = 0, 2, or 8 [Control
Method Selection = V/f, OLV, or EZOLV], the default settings change when the setting of b3-24
[Speed Search Method Selection] changes.
–b3-24 = 1 [Speed Estimation]: Refer to 185.
–b3-24 = 2 [Current Detection 2]: 0
• When E9-01 = 1 or 2 [Permanent Magnet (PM), Synchronous Reluctance (SynRM)] and A1-02
= 0 or 8 [V/f, EZOLV], refer to 185.
When you set A1-02, b3-24, and E9-01, set b3-14.
Sets the current level for the search retry function in Speed Estimation Speed Search as a percentage
where drive rated current is a setting value of 100%.
Sets the length of time that the drive will wait to retry Speed Estimation Speed Search when too
much current flow stopped the Speed Search.
Sets the number of times to restart Speed Search if Speed Search does not complete.
Sets the Speed Search method when you start the motor or when you restore power after a
momentary power loss.
Note:
• When A1-02 = 8 [Control Method Selection = EZOLV], the default setting changes when the
setting for E9-01 [Motor Type Selection] changes.
–E9-01 = 0 [Induction (IM)]: 2
–E9-01 = 1, 2 [Permanent Magnet (PM), Synchronous Reluctance (SynRM)]: 1
• When you set A1-02 = 8 and E9-01 = 1 or 2, set b3-24 = 1. If b3-24 = 2, the drive will detect
oPE08 [Parameter Selection Error].
• When you set b3-24, it will trigger the drive to initialize b3-14 [Bi-directional Speed Search].
After you set b3-24, set b3-14.
1 : Speed Estimation
2 : Current Detection 2
Sets the length of time the drive will wait to start the Speed Search Retry function.
Sets the level to find the motor rotation direction. Increase the value if the drive cannot find the
direction.
Sets the induced voltage for motors that use Speed Search. The drive will start Speed Search when
the motor induced voltage level is the same as the setting value. Usually it is not necessary to change
this setting.
Sets the current level that decreases the output current during Current Detection Speed Search.
Sets the current level that completes Speed Search.
YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING
Description
Default
(Range)
1.0
(0.0 - 3.0)
Determined by A1-02 and
o2-04
(0.00 - 6.00)
Determined by A1-02 when
A1-02 ≠ 5
20.0 when A1-02 = 5
(0.0 - 1000.0 ms)
1.05
(1.00 - 1.20)
Determined by A1-02 and
b3-24
(0, 1)
150%
(0 - 200%)
0.10 s
(0.00 - 1.00 s)
3 times
(0 - 10 times)
2
(1, 2)
0.5 s
(0.0 - 30.0 s)
1000
(40 to 60000)
10%
(0 - 10%)
1.50
(1.50 - 3.50)
1.20
(0.00 - 1.49)