YASKAWA HV600 Manual page 197

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b3-24: Speed Search Method Selection
No.
Name
(Hex.)
b3-24 Speed Search Method
Selection
(01C0)
Note:
• The default setting is different for different control methods.
–A1-02 = 0 [Control Method Selection = V/f]: 2
–A1-02 = 8 [EZOLV] and E9-01 = 0 [Motor Type Selection = Induction (IM)]: 2
–A1-02 = 8 and E9-01 ≠ 0: 1
• Set b3-24 = 1. If b3-24 = 2, the drive will detect oPE08 [Parameter Selection Error].
Set b3-01 = 1 [Speed Search at Start Selection = Enabled] to do Speed Search at start. Set L2-01 = 1 [Power Loss
Ride Through Select = Enabled for L2-02 Time] to do Speed Search after you restore power after a momentary power
loss.
1 : Speed Estimation
The drive uses the residual voltage from a short baseblock time to estimate the motor speed.
If there is not sufficient residual voltage, then the drive will inject DC current into the motor to estimate the motor
speed.
2 : Current Detection 2
The drive will inject DC current into the motor to estimate motor speed.
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b3-25: Speed Search Wait Time
No.
Name
(Hex.)
b3-25 Speed Search Wait Time
(01C8)
Expert
If the drive detects these faults during speed search, increase the setting value:
• oC [Overcurrent]
• ov [Overvoltage]
• SEr [Speed Search Retries Exceeded]
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b3-26: Direction Determination Level
No.
Name
(Hex.)
b3-26 Direction Determination
Level
(01C7)
Expert
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b3-27: Speed Search RUN/BB Priority
No.
Name
(Hex.)
b3-27 Speed Search RUN/BB
Priority
(01C9)
Expert
Executes Speed Search from Fmax or Fref [H1-xx = 61/62] for initial speed searches or from the MFDI terminal.
0 : SS Only if RUN Applied Before BB
1 : SS Regardless of RUN/BB Sequence
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
V/f OLV/PM EZOLV OLV/PM
Sets the Speed Search method when you start the motor or when you return power after a momentary
power loss.
V/f OLV/PM EZOLV OLV/PM
Sets the length of time the drive will wait to start the Speed Search Retry function.
V/f OLV/PM EZOLV OLV/PM
Sets the level to find the motor rotation direction. Increase the value if the drive cannot find the
direction.
V/f OLV/PM OLV/PM EZOLV
Sets the conditions necessary to start Speed Search.
Description
Description
Description
Description
2.3 b: Application
Default
(Range)
Determined by A1-02
(1, 2)
Default
(Range)
0.5 s
(0.0 - 30.0 s)
Default
(Range)
1000
(40 to 60000)
Default
(Range)
0
(0, 1)
2
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