YASKAWA HV600 Manual page 469

The keypad will show LOFB [Low Feedback Sensed] and the output terminal set for H2-xx = 97 will activate.
To deactivate the digital output and clear the alarm, increase the feedback to more than Y1-08 + Y1-14 [Feedback
Hysteresis Level], or make sure that one or more of the conditions that enable Low Feedback detection are no longer
true.
2 : Digital Output Only
The output terminal set for H2-xx = 97 will activate.
To deactivate the digital output and clear the alarm, increase the feedback to more than Y1-08 + Y1-14, or make sure
that one or more of the conditions that enable Low Feedback detection are no longer true.
■
Y1-11: High Feedback Level
No.
Name
(Hex.)
Y1-11 High Feedback Level
(3C0A)
RUN
Note:
• Unit and decimal place change when the system units change.
• Range is 0.00 to 99.99 with sign-bit "+" indicating Delta to Setpoint.
■
Y1-12: High Feedback Lvl Fault Dly Time
No.
Name
(Hex.)
Y1-12 High Feedback Lvl Fault
Dly Time
(3C0B)
RUN
Note:
This parameter is effective only when Y1-13 = 0 [High Feedback Selection = Fault (and Digital Output)].
■
Y1-13: High Feedback Selection
No.
Name
(Hex.)
Y1-13 High Feedback Selection
(3C0C)
The drive enables the High Feedback detection when:
• Parameter Y1-11 > 0.0
• There is a Run command, including sleep and timer operation (b5-09 = 0 [PID Output Level Selection = Normal
Output (Direct Acting)])
• Drive is running in AUTO Mode, including feedback drop detection (b5-09 = 1 [Reverse Output (Reverse Acting)])
0 : Fault (and Digital Output)
The keypad will show HFB [High Feedback Sensed] and the motor coasts to stop. The output terminal set for H2-xx
= 96 [MFDO Function Selection = High Feedback] will activate.
To deactivate the digital output, do a Fault Reset.
1 : Alarm (and Digital Output)
The keypad will show HIFB [High Feedback Sensed] and the output terminal set for H2-xx = 96 will activate.
To deactivate the digital output and clear the alarm, decrease the feedback to be less than Y1-11 - Y1-14 [Feedback
Hysteresis Level], or make sure that one or more of the conditions that enable High Feedback detection are no longer
true.
2 : Digital Output Only
The output terminal set for H2-xx = 96 will activate.
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
V/f OLV/PM EZOLV OLV/PM
Sets the upper detection level for the PID feedback.
V/f OLV/PM EZOLV OLV/PM
Sets the delay time between when the drive detects high feedback until the drive faults on an HFB
[High Feedback Sensed] fault.
V/f OLV/PM EZOLV OLV/PM
Sets the drive response when the feedback increased to more than Y1-11 [High Feedback Level] for
longer than the time set in Y1-12 [High Feedback Lvl Fault Dly Time].
2.14 Y: Application Features
Description
Description
Description
Default
(Range)
0.00%
(0.00 - 99.99%)
Default
(Range)
5 s
(0 - 3600 s)
Default
(Range)
0
(0 - 2)
2
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