YASKAWA HV600 Technical Reference page 411

0 : Current (A)
The drive compares the U1-03 [Output Current], U1-08 [Output Power], or U1-09 [Torque Ref] value with these
LOP Detection Level parameters:
• b5-84 [Feedback Loss Loss Of Prime Lvl]
• S5-08 [HAND Reference Prime Loss Level]
• Y1-19 [Prime Loss Level]
• Y4-05 [Pre-Charge Loss of Prime Level]
1 : Power (kW)
2 : Torque (%)
■
Y1-19: Prime Loss Level
No.
Name
(Hex.)
Y1-19 Prime Loss Level
(3C12)
RUN
■
Y1-20: Prime Loss Time
No.
Name
(Hex.)
Y1-20 Prime Loss Time
(3C13)
RUN
■
Y1-21: Prime Loss Activation Freq
No.
Name
(Hex.)
Y1-21 Prime Loss Activation Freq
(3C14)
■
Y1-22: Prime Loss Selection
No.
Name
(Hex.)
Y1-22 Prime Loss Selection
(3C15)
0 : Fault (and Digital Output)
The keypad shows an LOP [Loss of Prime] fault and the motor coasts to stop. The output terminal set for H2-xx = 94
[MFDO Function Selection = Loss of Prime] will activate.
To deactivate the digital output, do a Fault Reset.
1 : Alarm (and Digital Output)
The keypad shows an LOP [Loss of Prime] alarm and the output terminal set for H2-xx = 94 will activate.
2 : Digital Output Only
The output terminal set for H2-xx = 94 will activate.
■
Y1-23: Prime Loss Max Restart Time
No.
Name
(Hex.)
Y1-23 Prime Loss Max Restart
Time
(3C16)
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Sets the level to detect the LOP [Loss of Prime] in the pump when in Auto or Sleep Boost Mode.
Sets the delay time before the drive detects an LOP [Loss of Prime] condition. The timer starts when
the drive detects the conditions in Y1-18 [Prime Loss Detection Method] and Y1-19 [Prime Loss
Level].
Sets the frequency level above which the drive enables Loss of Prime detection.
Sets the drive response when the drive is in the Loss of Prime condition.
Sets the time in minutes that the drive will wait before it tries a restart after a restart fails or after it
does not do a restart because of a fault.
5.13 Y: Application Features
Description
Description
Description
Description
Description
Default
(Range)
0.0
(0.0 - 1000.0)
Default
(Range)
20 s
(0 - 600 s)
Default
(Range)
0.0 Hz
(0.0 - 400.0)
Default
(Range)
0
(0 - 2)
5
Default
(Range)
0.2 min
(0.2 - 6000.0 min)
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