YASKAWA HV600 Technical Reference page 660

Ac drive bypass for hvac fan and pump applications
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9.16 Y: Application Features
No.
Name
(Hex.)
Y4-12
Thrust Frequency
(3D05)
RUN
Y4-13
Thrust Deceleration Time Sets the length of time necessary for the drive to go from the Thrust Frequency in Y4-12
(3D06)
RUN
Y4-18
Differential Level
(3D0B)
RUN
Y4-19
Differential Lvl Detection
Time
(3D0C)
RUN
Y4-20
Differential Level
Detection Sel
(3D0D)
RUN
Y4-22
Low City On-Delay Time Sets the length of time that the drive will wait to stop when the drive detects a Low City
(3D0F)
RUN
Y4-23
Low City Off-Delay Time Sets the length of time that the drive will wait to start again after you clear a Low City
(3D10)
RUN
Y4-24
Low City Alarm Text
(3D11)
RUN
Y4-36
Pressure Reached Exit
Conditions
(3D1D)
RUN
Y4-37
Pressure Reached
Hysteresis Lvl
(3D1E)
RUN
Y4-38
Pressure Reached On
Delay Time
(3D1F)
RUN
Y4-39
Pressure Reached Off
Delay Time
(3D20)
RUN
Y4-40
Pressure Reached
Detection Sel
(3D21)
RUN
Y4-41
Diff Lvl Src Fdbk Backup
Select
(3D22)
RUN
660
Sets the Thrust Frequency that the drive will use to know which acceleration and
deceleration time to use. The drive will accelerate to this frequency in the Y4-11 [Thrust
Acceleration Time] time and decelerate from this frequency in the Y4-13 [Thrust
Deceleration Time] time.
[Thrust Frequency] to stop when Thrust Mode is active.
Sets the maximum difference that the drive will allow when it subtracts the Differential
Feedback from the Primary PID Feedback.
Note:
• The drive will respond as specified by the setting in Y4-20 [Differential Level
Detection Selection] when the difference increases to more than the value set in this
parameter for the time set in Y4-19 [Differential Level Detection Time].
• Set this parameter to 0.00 to disable Differential Feedback Detection.
Sets the length of time that the difference between PID Feedback and the Differential
Feedback must be more than Y4-18 [Differential Level] before the drive will respond as
specified by Y4-20 [Differential Level Detection Selection].
Sets the drive response during a Differential Level Detected condition.
0 : Fault (and Digital Out)
1 : Alarm (and Digital Out)
2 : Digital Out Only
Pressure condition.
Pressure condition.
Sets the alarm message to show on the keypad when the drive detects a Low City Pressure
condition.
0 : Low City Pressure
1 : Low Suction Pressure
2 : Low Water in Tank
Sets how the digital output responds to Feedback changes after it activates.
0 : Hysteresis Above & Below
1 : Hysteresis 1-Way
Sets the hysteresis level that will cause the drive to exit the Pressure Reached condition.
Sets the length of time that the drive will wait before it activates the Pressure Reached
condition.
Sets the length of time that the drive will wait before it deactivates the Pressure Reached
condition.
Sets the drive status that triggers the Pressure Reached Detection digital output.
0 : Always
1 : Drive Running
2 : Run Command
Sets the function to enable or disable Differential Level Source [H3-xx = 2D] as the
backup transducer if there is a failure with the primary PID Feedback transducer [H3-xx =
B] and the PID Feedback Backup transducer [H3-xx = 24] is not available.
0 : Disabled
1 : Enabled
Description
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Default
Ref.
(Range)
0.0 Hz
416
(0.0 - 400.0 Hz)
5.0 s
416
(0.0 - 600.0 s)
0.00%
416
(-99.99 - +99.99%)
10 s
417
(0 - 3600 s)
0
417
(0 - 2)
10 s
417
(1 - 1000 s)
5 s
417
(0 - 1000 s)
0
417
(0 - 2)
1
417
(0, 1)
0.30%
418
(0.1 - 10.00%)
1.0 s
418
(0.1 - 60.0 s)
1.0 s
418
(0.1 - 60.0 s)
0
418
(0 - 2)
0
418
(0, 1)

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