YASKAWA iQpump1000 Quick Start Manual page 169

This is useful in preventing a peak power surge when multiple drives power up and begin accelerating simultaneously. This
function works when the drives all have different P4-17 settings to spread out the power draw during acceleration.
No.
P4-17
n P5-02: HAND Reference 1
Sets the frequency reference of HAND mode. When the drive is stopped, pressing the HAND key will start the drive and the
drive will accelerate to the P5-02 setting.
No.
P5-02
n P5-04: HAND Key Function Selection
Selects whether the HAND key on the HOA keypad is active. Disabling this function by setting P5-04 to 0 will prevent the
drive from entering HAND Mode.
No.
P5-04
Setting 0: Disabled
Setting 1: Enabled
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.
Q1-01
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.
Q5-03
n
Q5-06: Wake-Up Suction Pressure
Sets the wake up level for the suction pressure control function. The drive falls asleep based on the Q5-04 level and Q5-05
delay time. The drive will wake up when the suction pressure feedback rises above the Q5-06 setting for the time set in Q5-07
AND the standard sleep function calls for a wake up (P1-04 and P1-05).
No.
Q5-06
n Q5-09: Low Suction Pressure Detection Level
Sets the level at 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.
Q5-09
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
4.6 Basic iQpump Setup and Application Preset Parameters
Parameter Name
Utility Start Delay
Parameter Name
HAND Reference 1
Parameter Name
HAND Key Function Selection
Parameter Name
PID Controller Setpoint 1
Parameter Name
Suction Pressure Setpoint
Parameter Name
Wake-Up Suction Pressure
Parameter Name
Low Suction Pressure Detection Level
Setting Range
0.0 to 1000.0
Setting Range
0.0 to E1-04
Setting Range
0, 1
Setting Range
0.0 to 6000.0
Setting Range
0.0 to 1200.0
Setting Range
0.0 to 1200.0
Setting Range
0.0 to 1200.0
Default
0.2 min
Default
40.0 Hz
Default
1
Default
0.0
Default
20.0
4
Default
30.0
Default
0.0
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