YASKAWA iQpump Manual Supplement page 17

P8-05 Wake-Up Suction Pressure
Range
If the drive is forced to sleep based upon the minimum suction pressure
0.0 - 1200.0 psi (P8-04), the suction pressure must go above this level for more than the P8-13
time in order to wake up.
P8-06 Suction Control Minimum Speed
Range
This parameter sets the minimum speed the drive will run when the drive is
controlling suction pressure. When the drive is controlling outlet pressure or
0.00 - 120.00 Hz
this parameter is set less than P1-06 and P4-05, P1-06 and P4-05 will be used as
the minimum speed.
P8-07 Low Suction Pressure Detection Level <1>
Range
When the amount of suction pressure drops below this level for more than the
0.0 - 1200.0 psi P8-08 time, the drive will respond depending on the P8-09 setting. A setting of
0.0 disables this detection.
P8-08 Low Suction Pressure Detection Time
Range
Sets the amount of time delay that the suction pressure must drop below the
0.0- 300.0 min
P8-07 level before the drive will react. *Time units are defined by P8-14.
P8-09 Water Level/Suction Pressure Selection
Sets how the drive will respond when the water level in the well drops below the P8-07 level for more than the P8-08
time.
Setting
0 No Display (Digital Output Only)
1 Alarm Only (factory default)
2 Fault
3 Auto-Restart (time set by P8-12) (New)
P8-10 Suction Control Proportional Gain
Range
0.00 - 25.00 Sets the proportional gain for the suction pressure control.
P8-11 Suction Control Integral Time
Range
Sets the integral time for the suction pressure control. A setting of zero disables
0.0 - 360.0 sec
the suction pressure control integrator.
P8-12 Suction Control Auto-Restart Time
Range
Sets the amount of time the drive will wait before attempting an auto-restart of
0.1 - 6000.0 min
the "Low Suction" fault. Effective only when P8-09 = 3 and L5-01 > 0.
<1> Low Level/Low Suction Detection (P8-07/P8-08): This feature is disabled when the drive is in Run-Stop control
(b1-02 = 5, Timed Run).
YASKAWA TM.iQp.10 iQpump Technical Manual Supplement
7 Suction Control via Constant Pressure w/Well Draw Down
Description
Description
Description
<1>
Description
Description
Description
Description
Description
Default
30.0 psi
Default
0.00 Hz
Default
0.0 psi
Default
0.1 min
Default
2.00
Default
5.0 min
Default
5.0 min
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