Parameter Details
5
5.13 Y: Application Features
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 425
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.
â– YF-12: PI Aux Control High Level Detect
No.
(Hex.)
Name Description
Default
(Range)
YF-12
(3F5B)
RUN
PI Aux Control High Level
Detect
Sets the value above which the level must be for longer than YF-13 [PI Aux High Level Detection
Time] to respond as specified by YF-14 [PI Aux Hi Level Detection Select].
0.0 PSI
(-999.9 - +999.9 PSI)
Note:
• Set this parameter to 0.0 to disable the function.
• Parameter YF-13 only applies to when YF-14 = 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.
â– YF-13: PI Aux High Level Detection Time
No.
(Hex.)
Name Description
Default
(Range)
YF-13
(3F5C)
RUN
PI Aux High Level
Detection Time
Sets the length of time that the level must be more than YF-12 [PI Aux Control High Level Detect]
before the drive will respond when YF-14 = 2, 3 [PI Aux Hi Level Detection Select].
0.1 s
(0.0 - 300.0 s)
â– YF-14: PI Aux Control Hi Level Det Sel
No.
(Hex.)
Name Description
Default
(Range)
YF-14
(3F5D)
PI Aux Control Hi Level Det
Sel
Sets the drive response when the PI Aux Feedback increases to more than the YF-12 [PI Aux Control
High Level Detect] level for longer than the time set in YF-13 [PI Aux High Level Detection Time].
1
(0 - 3)
Note:
• Set YF-01 = 1 [PI Aux Control Selection = Enabled] and YF-12 [PI Aux Control High Level Detect] > 0 to enable PI Aux High Level
Detection.
• Parameter YF-13 only applies when YF-14 = 2 or 3
0 : NoDisplay (Digital Output Only)
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