YASKAWA HV600 Manual page 500

2.14 Y: Application Features
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YF-09: PI Aux Control Low Level Detect
No.
Name
(Hex.)
YF-09 PI Aux Control Low Level
Detect
(3F58)
RUN
Note:
• Set this parameter to 0.0 to disable the function.
• Parameter YF-10 only applies to when YF-11 = 2 and 3 [Fault and Auto-Restart (time set by YF-15)].
• Parameters YF-21 [PI Aux Ctrl Level Unit Selection] and YF-22 [PI Aux Level Decimal Place Pos] set the unit and resolution.
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YF-10: PI Aux Low Level Detection Time
No.
Name
(Hex.)
YF-10 PI Aux Low Level Detection
Time
(3F59)
RUN
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YF-11: PI Aux Control Low Level Det Sel
No.
Name
(Hex.)
YF-11 PI Aux Control Low Level
Det Sel
(3F5A)
Note:
• Set YF-01 = 1 [PI Aux Control Selection = Enabled] and YF-09 [PI Aux Control Low Level Detect] > 0 to enable PI Aux Low Level
Detection.
• Parameter YF-10 only applies when YF-11 = 2 or 3.
0 : No Display
When the PI Aux Feedback decreases to less than the YF-09 [PI Aux Control Low Level Detect] level, the digital
output set for H2-xx = 9E [MFDO Function Selection = Low PI Auxiliary Control Level will activate. When the level
increases to more than the YF-09 level, the digital output will immediately deactivate.
1 : Alarm Only
When the PI Aux Feedback decreases to less than YF-09 level, the keypad will show an LOAUX [Low PI Aux
Feedback Level] alarm and the digital output set for H2-xx = 9E will activate. When the feedback increases to more
than YF-09 level, the drive will clear the alarm and the digital output will deactivate.
2 : Fault
When the output frequency is more than zero, and the PI Aux Feedback decreases to less than the YF-09 level, the
digital output set for H2-xx = 9E and an LOAUX alarm will immediately activate. If the feedback stays less than the
YF-09 level for the time set in YF-10 [PI Aux Low Level Detection Time], the drive will detect an LOAUX [Low PI
Aux Feedback Level] fault.
3 : Auto-Restart (time set by YF-15)
When the output frequency is more than zero, and the PI Aux Feedback decreases to less than the YF-09 level, the
digital output set for H2-xx = 9E and an LOAUX alarm will immediately activate. If the feedback stays less than the
YF-09 level for the time set in YF-10 [PI Aux Low Level Detection Time], the drive will detect an LOAUX fault.
When L5-01 [Number of Auto-Restart Attempts] > 0 and if the drive detects an LOAUX fault, the drive will
automatically try an Auto-Restart after YF-15 [PI Aux Level Detect Restart Time] is expired. If the feedback is not
more than the YF-09 level, the Auto-Restart counter will increment and the drive will stay faulted.
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V/f OLV/PM EZOLV OLV/PM
Sets the level below which the drive must be for longer than YF-10 [PI Aux Control Low Lvl Det
Time] to respond as specified by YF-11 [PI Aux Control Low Level Det Sel].
V/f OLV/PM EZOLV OLV/PM
Sets the length of time that the PI Aux Feedback must be less than YF-09 [PI Aux Control Low Lvl
Detection] to trigger a drive response when YF-11 = 2 and 3 [PI Aux Control Low Level Det Sel =
Fault and Auto-Restart (time set by YF-15)].
V/f OLV/PM EZOLV OLV/PM
Sets drive response when the PI Aux Feedback decreases to less than YF-09 [PI Aux Control Low Lvl
Detection] for longer than YF-10 [PI Aux Control Low Lvl Det Time].
Description
Description
Description
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Default
(Range)
0.0 PSI
(-999.9 - +999.9 PSI)
Default
(Range)
0.1 s
(0.0 - 300.0 s)
Default
(Range)
1
(0 - 3)