YASKAWA HV600 Manual page 489

The drive monitors the feedback level and output frequency.
When the output frequency < Y9-13 and the difference between the feedback and the setpoint is more than Y9-14 for
the time set in Y9-15, and when this drive is not the only drive running, the Lead Drive will send a de-stage request.
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Y9-13: De-staging Frequency Level
No.
Name
(Hex.)
Y9-13 De-staging Frequency Level
(3E00)
RUN
Note:
• When A1-02 = 8 [Control Method Selection = EZOLV], the range is 0.0 - 120.0 Hz.
• Parameter Y9-12 [De-staging Mode] sets the condition to request for the removal:
–Y9-12 = 0 [Output Frequency]: The output frequency must decrease to less than this level for the time set in Y9-15 [De-staging Delay
Time] to request for the removal.
–Y9-12 = 2 [Feedback + Fout]: The output frequency must decrease to less than this level and the difference between the feedback and
setpoint must be more than Y9-14 [De-staging Delta Feedback Level] for the time set in Y9-15 [De-staging Delay Time] to request for the
removal.
■
Y9-14: De-staging Delta Feedback Level
No.
Name
(Hex.)
Y9-14 De-staging Delta Feedback
Level
(3E01)
RUN
Note:
• When b5-09 = 0 [PID Output Level Selection = Normal Output (Direct Acting)], the drive uses the feedback minus the setpoint to
determine the delta feedback level.
• When b5-09 = 1 [Reverse Output (Reverse Acting)], the drive uses the setpoint minus the feedback to determine the delta feedback level.
• Parameter Y9-12 [De-staging Mode ] sets the condition to request for the removal:
–Y9-12 = 1 [Feedback]: The difference between the feedback and setpoint must increase to more than this level for the time set in Y9-15
[De-staging Delay Time] to request for the removal.
–Y9-12 = 2 [Feedback + Fout]: The difference between the feedback and setpoint must increase to more than this level and the output
frequency must be less than Y9-13 [De-staging Frequency Level] level for the time set in Y9-15 [De-staging Delay Time] to request for the
removal.
• Parameters b5-46 [PID Unit Display Selection], b5-38 [PID User Unit Display Scaling], and b5-39 [PID User Unit Display Digits] set the
unit, range, and resolution.
■
Y9-15: De-staging Delay Time
No.
Name
(Hex.)
Y9-15 De-staging Delay Time
(3E02)
RUN
■
Y9-16: Stabilization Time
No.
Name
(Hex.)
Y9-16 Stabilization Time
(3E03)
RUN
Note:
Lead-lag control and pump protection is stopped during the stabilization time.
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
V/f OLV/PM EZOLV OLV/PM
Sets the level below which the output frequency must decrease before the Lead Drive will request to
be removed from the system through the MEMOBUS network.
V/f OLV/PM EZOLV OLV/PM
Sets the level above which the difference between the feedback and setpoint must increase before the
lead drive will request to be removed from the system through the MEMOBUS network.
V/f OLV/PM EZOLV OLV/PM
Sets the delay time before removing the Lead Drive from the system.
V/f OLV/PM OLV/PM EZOLV
Sets the time used to keep the system stable when you stage or de-stage a drive.
2.14 Y: Application Features
Description
Description
Description
Description
Default
(Range)
40.0 Hz
(0.0 - 400.0 Hz)
Default
(Range)
0.00
(0.00 - 600.00)
Default
(Range)
10 s
(0 - 3600 s)
Default
(Range)
3 s
(0 - 3600 s)
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