Setting 1: Home Monitor Text
FlowLim Foldback
U1-02= 41.50Hz
QMONI: Use F1/F2
U5-99= 100PSI
U1-91= 98.3PSI
<- MONITOR ->
n
Q1-01: PID Controller Setpoint 1
Sets the PID setpoint for the controller. The drive will use the system feedback signal and modulate the pump speed to regulate
the feedback at the Q1-01 setpoint. The units for Q1-01 are selected by b1-01 and the scaling is set in parameter P1-03. This
parameter is active when b1-01 (Reference Source) is set to 0 (HOA keypad).
No.
Parameter Name
Setting Range
Default
Q1-01
PID Controller Setpoint 1
0.0 to 6000.0
0.0 PSI
n
Q3-06: Current Limit Foldback Message Style
Selects how the “Current Limit Foldback” message is displayed on the operator.
No.
Parameter Name
Setting Range
Default
Q3-06
Current Limit Foldback Message Style
0, 1
0
Setting 0: Full Screen Message
Current Limit
Foldback
- MODE -
DRV RDY
Setting 1: Home Monitor Text
Cur Lim Foldback
U1-02= 41.50Hz
QMONI: Use F1/F2
U5-99= 100PSI
U1-91= 98.3PSI
<- MONITOR ->
n
Q5-03: Suction Pressure Setpoint
Sets the Suction Pressure setpoint. The units of Q5-03 are selected in Q5-01 and the scaling is set in Q5-02 (Suction Transducer
Scaling). The Suction Pressure function is enabled by setting Q5-01 = 1 (Suction Pressure). This function uses Q5-03 as the
setpoint instead of Q1-01, and Q5-02 as the feedback scaling instead of P1-02. Set b5-01 to a value other than 0 to enable the
drive PID controller and use this function.
This feature can be used to allow the drive to control (outlet) pressure when there is adequate pressure on the inlet side of the
pump by setting Q5-01 to 1 (Suction Pressure). When the suction pressure (pump inlet pressure) drops to the Suction Pressure
Setpoint (Q5-03), it will regulate the suction pressure and the outlet pressure will be allowed to drop. This requires both a
suction pressure transducer on the pump inlet and a pressure feedback transducer on the pump output.
No.
Parameter Name
Setting Range
Default
Q5-03
Suction Pressure Setpoint
0.0 to 1200.0
20.0 PSI
4.7 Basic U1000 iQpump Setup and Application Preset Parameters
YASKAWA TOEPYAIUPW01A YASKAWA AC Drive - U1000 iQpump Matrix Drive User Manual
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Start-Up Programming & Operation