YASKAWA HV600

5.13 Y: Application Features
410 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Note:
• Unit and decimal place change when the system units change.
• If there is a fault, the drive will coast to a stop.
• Set this parameter to 0.0 to disable the function.
• This function is only active during run when in Auto Mode.
■ Y1-16: Not Maintaining Setpoint Time
No.
(Hex.)
Name Description
Default
(Range)
Y1-16
(3C0F)
RUN
Not Maintaining Setpoint
Time
Sets the delay time before a Setpoint Not Met condition occurs. The drive must detect the setpoint
difference set in Y1-15 [Maximum Setpoint Difference] before the timer will start.
60 s
(0 - 3600 s)
Note:
Set Y1-15 = 0 [Maximum Setpoint Difference = 0] to disable this function.
■ Y1-17: Not Maintaining Setpoint Sel
No.
(Hex.)
Name Description
Default
(Range)
Y1-17
(3C10)
Not Maintaining Setpoint Sel Sets the drive response when the feedback increases to more or decreases to less than the setpoint for
more than the amount set in Y1-15 [Maximum Setpoint Difference].
0
(0 - 2)
The drive enables the Not Maintaining Set Point detection when:
• Drive is operating in PID control (b5-01 ≠ 0 [PID Mode Setting ≠ Disabled)
• Drive is operating in AUTO Mode
• Drive is not in Pre-Charge Mode
• Drive is not in the sleep state
• Parameter Y1-15 > 0 [Maximum Setpoint Difference > 0]
0 : Fault (and Digital Output)
The keypad will show an NMS [Setpoint Not Met] fault and the motor coasts to stop. The output terminal set for H2-
xx = AC [Setpoint Not Maintained] will activate.
To deactivate the digital output, do a Fault Reset.
• If Not Maintaining Setpoint condition continues for longer than Y1-16 [Not Maintaining Setpoint Time] the drive
will detect an NMS fault.
• If the feedback increases or decreases to less than Y1-15 from the setpoint before Y1-16 expires, the drive will
deactivate the output terminal, clear the alarm, and reset Y1-16.
1 : Alarm (and Digital Output)
The keypad will show an NMS [Setpoint Not Met] alarm and the output terminal set for H2-xx = AC will activate.
To deactivate the digital output and clear the alarm, increase or decrease the feedback to less than Y1-15 from the
setpoint.
Note:
There is no time limit for this condition.
2 : Digital Output Only
The drive will detect Not Maintaining Setpoint and the output terminal set for H2-xx = AC will activate.
To deactivate the digital output, increase or decrease the feedback to less than Y1-15 from the setpoint.
Note:
There is no time limit for this condition.
■ Y1-18: Prime Loss Detection Method
No.
(Hex.)
Name Description
Default
(Range)
Y1-18
(3C11)
Prime Loss Detection
Method
Sets the units and quantity that the drive will use to determine LOP [Loss of Prime]. 0
(0 - 2)