Water Level / Suction Pressure Control - YASKAWA U1000 iQpump MATRIX Drive User Manual

4.6 U1000 iQpump Presets and Functions
u

Water Level / Suction Pressure Control

This function provides the ability to use the Low and High Level Detection feature of Water Level or Suction Pressure Control
without affecting the output speed (drive main PI control).
This function will affect the output speed only when setting Q4-01 > 0 to enable Water Level Control will and setting Q4-20
to 1 to enable Water Level Speed Control.
In all other cases, only Sleep at Minimum Water Level and Level Detection features are usable.
This function will affect the output speed only when setting Q5-01 > 0 to enable Suction Pressure Control will and setting
Q5-20 to 1 to enable Suction Pressure Speed Control.
In all other cases, only Sleep at Minimum Suction Pressure and Pressure Detection features are usable.
n Related Parameters
No.
Q4-20 Water Level Speed Control
Q5-20 Suction Pressure Speed Control
u
Delta Data Entry
Delta Data Entry allows the user to set the Low and High Feedback Detection Levels relative to the current setpoint and
establish a PI setpoint when PID is not active.
Parameter/Condition
P1-04 Start Draw Down Level PID Direct-
acting
P1-04 Start Draw Down Level PID Inverse-
acting
P1-08 Low Feedback Level
P1-11 High Feedback Level
The following conditions will change the setpoint in order of priority when the drive is a non-PID mode or when PID is
disabled:
The default Setpoint is Q1-01 (Setpoint 1)
1. Setpoints Q1-02 to Q1-04 when Multi-setpoint Digital Inputs are active (H1-oo = 8D, 8E, 83, 84, or 85)
2. MEMOBUS Setpoint when MEMOBUS PID Setpoint enable bit is set
3. Pulse Input RP when H6-01 = 2 (PID Setpoint)
4. Analog Input when H3-oo = C (PID Setpoint).
n Related Parameters
No.
P1-04 Start / Draw Down Level
P1-08 Low Feedback Level
P1-11 High Feedback Level
114
Parameter Name
Delta Entry Absolute Entry
-0.0 to -999.9 0.0 to 999.9
+0.0 to +999.9 0.0 to 999.9
-0.0 to -999.9 0.0 to 999.9
+0.0 to +999.9 0.0 to 999.9
Parameter Name
YASKAWA TOEPYAIUPW01A YASKAWA AC Drive - U1000 iQpump Matrix Drive User Manual
Setting Values
Default: 1
Range: 0, 1
Default: 1
Range: 0, 1
Range Display
(Toggles Automatically)
(0.0 to 999.9) <– –> "–Sub frm SetPt"
(0.0 to 999.9) <– –> "+Add to SetPt"
(0.0 to 999.9) <– –> "–Sub frm SetPt"
(0.0 to 999.9) <– –> "+Add to SetPt"
Setting Values
Default: 0.0
Range: 0.0 to 999.9
Default: 0.0
Range: 0.0 to 999.9
Default: 155.0
Range: 0.0 to 999.9