12.3 b: Application
664 YASKAWA SIEPC71061705H GA700 Series Technical Manual
■ b3-25: Speed Search Wait Time
No.
(Hex.)
Name Description
Default
(Range)
b3-25
(01C8)
Expert
Speed Search Wait Time
Sets the length of time the drive will wait to start the Speed Search Retry function.
0.5 s
(0.0 - 30.0 s)
If the drive detects these faults during speed search, increase the setting value:
• oC [Overcurrent]
• ov [Overvoltage]
• SEr [Speed Search Retries Exceeded]
■ b3-26: Direction Determination Level
No.
(Hex.)
Name Description
Default
(Range)
b3-26
(01C7)
Expert
Direction Determination
Level
Sets the level to find the motor rotation direction. Increase the value if the drive cannot find the
direction.
1000
(40 to 60000)
■ b3-27: Speed Search RUN/BB Priority
No.
(Hex.)
Name Description
Default
(Range)
b3-27
(01C9)
Expert
Speed Search RUN/BB
Priority
Sets the conditions necessary to start Speed Search.
0
(0, 1)
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
■ b3-29: Speed Search Back-EMF Threshold
No.
(Hex.)
Name Description
Default
(Range)
b3-29
(077C)
Expert
Speed Search Back-EMF
Threshold
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.
10%
(0 - 10%)
To make adjustments, gradually decrease the setting value. If you decrease the setting value too much, speed
search will not operate correctly.
■ b3-31: Spd Search Current Reference Lvl
No.
(Hex.)
Name Description
Default
(Range)
b3-31
(0BC0)
Expert
Spd Search Current
Reference Lvl
Sets the current level that decreases the output current during Current Detection Speed Search.
1.50
(1.50 - 3.50)
Set this parameter as a ratio of E2-03 [Motor No-Load Current]. The setting is a ratio with respect to 30% of the
motor rated current when E2-03 ≤ E2-01 [Motor Rated Current (FLA)] × 0.3.
Note:
When A1-02 = 8 [Control Method Selection = EZOLV], the setting is a ratio with respect to E9-06 [Motor Rated Current (FLA)] × 0.5.
■ b3-32: Spd Search Current Complete Lvl
No.
(Hex.)
Name Description
Default
(Range)
b3-32
(0BC1)
Expert
Spd Search Current
Complete Lvl
Sets the current level that completes Speed Search.
1.20
(0.00 - 1.49)
To Next Page
Loading...
