
SubDrive/MonoDrive
19
Steady Flow Selection
SubDrive75/100/150/300,
SubDrive2W/MonoDrive/MonoDriveXT
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 changes for possible overshoot. A larger
pressure tank and/or wider margin between regulation and valve pressure may be required as
the Steady Flow features reduce 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”. Use a small screwdriver (provided) to move position 4 to “ON” as shown.
s
WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
O
N
1 2 3 4
CTS 206-4
T950
O
N
1 2 3 4
CTS 206-4
T950
R1
ADJUST
SW1
SW2
Configuration Switch SW1
1
2
3
4
O
N
1
2
3
4
O
N
Normal (default)
Steady Flow
NEMA 3R
NEMA 1
NEMA 4
SENSOR
2
1
3
3
SW2
SW1
2
4
1
4
R1
ADJUST
ON
Configuration
Switch SW1
ON
1
2
3
4
SW1
Configuration Switch SW1
1
2
3
4
O N
1
2
3
4
O N
Normal (default)
Steady Flow
1
2
3
4
O
N
1
2
3
4
O
N
Normal (default)
Steady Flow
Содержание MonoDrive
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Страница 46: ...46 SubDrive MonoDrive Notes ...