Parameter Details
5
5.13 Y: Application Features
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 415
â– Y2-25: Anti-No-Flow Release Level
No.
(Hex.)
Name Description
Default
(Range)
Y2-25
(3C7C)
RUN
Anti-No-Flow Release Level Sets the amount below the setpoint which the feedback must decrease before the drive will disengage
Anti-No-Flow and return to normal PI operation.
0.30%
(0.00 - 10.00%)
Note:
The display unit and scaling change when the System Units change.
â—† Y4: Application Advanced
â– Y4-01: Pre-Charge Level
No.
(Hex.)
Name Description
Default
(Range)
Y4-01
(3CFA)
RUN
Pre-Charge Level Sets the level at which the drive will activate the pre-charge function when the drive is running at the
frequency set in Y4-02 [Pre-Charge Frequency].
0.00%
(0.00 - 600.00%)
Note:
The drive will stop when one of these conditions is true:
• The feedback level increases to more than Y4-01
• The pre-charge time set in Y4-03 [Pre-Charge Time] expires
â– Y4-02: Pre-Charge Frequency
No.
(Hex.)
Name Description
Default
(Range)
Y4-02
(3CFB)
RUN
Pre-Charge Frequency Sets the frequency at which the pre-charge function will operate. 0.0 Hz
(0.0 - 400.0 Hz)
â– Y4-03: Pre-Charge Time
No.
(Hex.)
Name Description
Default
(Range)
Y4-03
(3CFC)
RUN
Pre-Charge Time Sets the length of time that the Pre-Charge function will run. 0.0 min
(0.0 - 3600.0 min)
Note:
Set this parameter to 0.0 to disable the function.
â– Y4-05: Pre-Charge Loss of Prime Level
No.
(Hex.)
Name Description
Default
(Range)
Y4-05
(3CFE)
RUN
Pre-Charge Loss of Prime
Level
Sets the level at which the drive will detect loss of prime in the pump. 0.0 A
(0.0 - 1000.0 A)
â– Y4-11: Thrust Acceleration Time
No.
(Hex.)
Name Description
Default
(Range)
Y4-11
(3D04)
RUN
Thrust Acceleration Time Sets the time at which the drive output frequency will ramp up to the reference frequency set in Y4-
12 [Thrust Frequency].
1.0 s
(0.0 - 600.0 s)
When Y4-11 = 0.0, the drive will use the standard acceleration rate.
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