5.13 Y: Application Features
416 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
â– Y4-12: Thrust Frequency
No.
(Hex.)
Name Description
Default
(Range)
Y4-12
(3D05)
RUN
Thrust Frequency 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.
0.0 Hz
(0.0 - 400.0 Hz)
WARNING! Sudden Movement Hazard. When you set Thrust Frequency, do not re-energize the drive while you enter the Run
command. If you de-energized the drive while it is running, the drive can automatically start when you energize it and it can cause
serious injury or death.
At start, the drive will use the Y4-11 [Thrust Acceleration Time] time until the output frequency increases to Y4-12.
During the Y4-11 time, the terminal set for H2-xx = AB [MFDO Function Selection = Thrust Mode] will be active.
When the output frequency is at or more than Y4-12, the drive will use the active acceleration and deceleration times
set in C1-01 [Acceleration Time 1] to C1-04 [Deceleration Time 2]. At stop, when the output frequency decreases to
Y4-12, the drive will use Y4-13 [Thrust Deceleration Time] for the remaining deceleration time.
Figure 5.97 shows an example of drive operation during Thrust mode when b1-03 = 0 [Stopping Method Selection =
Ramp to Stop].
C1-01: Acceleration Time 1
C1-02: Deceleration Time 1
H2-xx = AB: Thrust Mode
Y4-11: Thrust Acceleration Time
Y4-12: Thrust Frequency
Y4-13: Thrust Deceleration Time
Figure 5.97 Thrust Frequency
â– Y4-13: Thrust Deceleration Time
No.
(Hex.)
Name Description
Default
(Range)
Y4-13
(3D06)
RUN
Thrust Deceleration Time Sets the length of time necessary for the drive to go from the Thrust Frequency in Y4-12 [Thrust
Frequency] to stop when Thrust Mode is active.
5.0 s
(0.0 - 600.0 s)
When Y4-13 > 0.0, the drive will decelerate from the Y4-12 value to zero in exactly the Y4-13 time.
When Y4-13 = 0, the drive will use the standard deceleration rate.
â– Y4-18: Differential Level
No.
(Hex.)
Name Description
Default
(Range)
Y4-18
(3D0B)
RUN
Differential Level Sets the maximum difference that the drive will allow when it subtracts the Differential Feedback
from the Primary PID Feedback.
0.00%
(-99.99 - +99.99%)
Note:
• The drive will respond based on 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.
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