For Q5-01 = 1 (Suction Pressure): If Q5-11 = 2 or 3, the drive will respond based on the Q5-11 setting when the suction
pressure feedback falls below the Q5-09 setting for the time set in Q5-10. If Q5-11 = 0 or 1, the drive will respond based on
the Q5-11 setting as soon as the suction pressure feedback falls below the Q5-09 setting.
For Q5-01 = 2 (Vacuum): If Q5-11 = 1, 2 or 3, the drive will respond based on the Q5-11 setting when the suction pressure
feedback falls below the Q5-09 setting for the time set in Q5-10. If Q5-11 = 0, the 9Ch Low Suction MFDO will close as soon
as the suction pressure feedback falls below the Q5-09 setting.
No. Parameter Name Setting Range Default
Q5-09 Low Suction Pressure Detection Level 0.0 to 1200.0 0.0 PSI
n
Q5-10: Low Suction Pressure Detection Time
Sets the delay time after which a Low Suction Pressure alarm or fault will occur. When the suction pressure feedback falls
below the Q5-09 setting for the time set in Q5-10, the drive will respond based on the setting in Q5-11.
No. Parameter Name Setting Range Default
Q5-10 Low Suction Pressure Detection Time 0.0 to 300.0 0.1 min
n
Q5-11: Low Suction Pressure Behavior Select
Selects the drive response to a Low Suction Pressure condition. When the suction pressure feedback falls below the Q5-09
setting for the time set in Q5-10, the drive will respond based on the setting in Q5-11. By setting Q5-11 to 3 (Restart Q5-15),
the drive will attempt to reset itself for the number of times set in L5-01 waiting for the Q5-15 reset time before each reset
attempt. The drive will fault if the L5-01 attempts are exceeded.
Note: If Q5-01 = 1 (Suction Pressure), the Q5-10 detection delay time only applies to Q5-11 settings 2 and 3. If Q5-01 = 2 (Vacuum), the Q5-10
detection delay time applies to Q5-11 settings 1, 2, and 3.
No. Parameter Name Setting Range Default
Q5-11 Low Suction Pressure Behavior Select 0 to 3 1
Setting 0: No display (digital output only)
Setting 1: Alarm only
Setting 2: Fault
Setting 3: Auto-restart (time set in Q5-15)
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Q5-16: Suction Control Proportional Gain
Sets the proportional gain of the Suction Pressure controller. Increasing this value will make the system more responsive but
can lead to instability. Q5-16 is used in place of b5-02 for suction pressure control.
No. Parameter Name Setting Range Default
Q5-16 Suction Control Proportional Gain 0.00 to 25.00 2.00
n
Q5-17: Suction Control Integral Time
Sets the integral time of the Suction Pressure controller. Decreasing this value will make the system more responsive but can
lead to overshoot. Q5-17 is used in place of b5-03 for suction pressure control.
No. Parameter Name Setting Range Default
Q5-17 Suction Control Integral Time 0.0 to 360.0 s 5.0 s
n
Q6–23: PI Auxiliary Control
Determines whether the PI Auxiliary Controller is Direct-acting (feedback higher than setpoint results in lower speed) or
Inverse-acting (feedback lower than setpoint results in lower speed).
No. Parameter Name Setting Range Default
Q6–23 PI Auxiliary Control 0, 1 1
Setting 0: Direct Acting
When Q6-25 (PI Aux Control Activation Level) = 0, the PI Aux Controller can affect the output frequency if the controller’s
output is less than the primary PID (System Pressure) controller’s output.
4.7 Basic iQpump Setup and Application Preset Parameters
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
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4
Start-Up Programming
& Operation
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