SubDrive/MonoDrive Connect
31
Underload Sensitivity: Shallow Set
If the pump is installed in an extremely shallow (i.e. artesian) well and the system continues
to trip, then the Underload Potentiometer (Pot) will need to be adjusted counter-clockwise
to a lower sensitivity setting. Check the Underload trip level and repeat as necessary.
Underload Sensitivity: Deep Set
In cases where the pump is set very deep, run the system at open discharge to pump the
well down and observe carefully that an Underload is detected properly. If the system does
not trip as it should, then the Underload Pot will need to be adjusted clockwise to a higher
sensitivity setting.
If necessary to adjust the Underload Sensitivity, remove power and allow the controller
to discharge. Wait 5 minutes to allow internal voltage to dissipate, locate the Underload
Sensitivity knob, and make necessary adjustments.
Steady Flow Selection (DIP SW1 - Position 4)
The SubDrive/MonoDrive controller is configured at the factory to ensure quick response to
maintain constant pressure. In rare cases (as with a water line tap before the pressure tank),
the controller may need to be adjusted to offer better control.
If the controller is used on a system that has a water line tapped before the pressure tank
and close to the well head or where audible speed variations of the PMA can be heard
through the pipes, adjusting the pressure control response time may be necessary. After
enabling this feature, the installer should check flow and pressure changes for possible
overshoot. A larger pressure tank and/or wider margin between regulation and pressure
relief valve pressure may be required as the Steady Flow feature reduces the controller’s
reaction time to sudden changes in flow.
If it is necessary to adjust the pressure control, remove power and allow the controller
to discharge. Wait 5 minutes to allow internal voltage to dissipate, locate the DIP switch
marked “SW1”. Move DIP SW1 Position 4 to “ON” (up) position.
Underload Sensitivity
Potentiometer
R28
R19
R15
R14
R18
R16
R27
R28
P3
ON
6
8 1
6
1
1
R13
R12
R10
R9
UNDERLOAD
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6
1 2 3 4 5 6
SW1
SW2
SW3
C22
C23
PRESSURE
SET POINT
R23
R24
R21 R34 R35
R56 R66
R47
R48
R42
R57
R39
R58
R106
C29
R21
R26
D8
C36
D7
R45
R50
R64
J6
Q9
Q2
Q1
R79
R78
R60
R59
R53
C18
C19
R47
D11
R5
P2
USB
1
+
BT1
R65
D3
D6
U1
R52
R44
R43
C20
C
C26
C27
C21
C16
C48
J2
R48
R71
C45
R51
U8
C25
C14
C10
C9
R30
R85
R62
C30
C13
C15
C28
R70
J1
D4
UB
R84
R11
C32
C31
Содержание 5870205003C
Страница 1: ...Owner s Manual SubDrive15 20 30 50 MonoDrive MonoDriveXT Connect NEMA 3R ...
Страница 45: ...NOTES ...
Страница 46: ...SubDrive15 20 30 50 MonoDrive MonoDriveXT Connect NEMA 3R Manual del propietario ...
Страница 90: ...NOTAS ...
Страница 91: ...Manuel du propriétaire SubDrive15 20 30 50 MonoDrive MonoDriveXT Connect NEMA 3R ...
Страница 135: ...REMARQUES ...