Motor/Pump Size; Underload Sensitivity - Franklin Electric SubDrive15 Manuel D'utilisation

SubDrive/MonoDrive
Motor / Pump Size
The SubDrive/MonoDrive can be configured to operate by setting only two (2) DIP
switches; one (1) for the motor size and one (2) for the pump size. The DIP switches are
located on the top of the User Interface board as shown in the figure below.
Note: When operating a SubDrive as a MonoDrive, the MonoDrive pump and motor
specifications on page 5 apply.
"HP Values"
Select the one (1) DIP switch from SW2 that corresponds to the motor hp being used
and one (1) DIP switch from SW3 that corresponds to the pump hp being used. The
corresponding hp values are printed above the SW2 and SW3 diagrams on the black
shield. Selecting none or more than one switch in either SW2 or SW3 will result in an
Invalid DIP Switch Fault indicated by F24 on the display.
Underload Sensitivity (if needed)
The Underload Sensitivity MUST be adjusted only when the SubDrive/MonoDrive is
POWERED OFF. The new setting will not take effect until the drive is powered up.
The SubDrive/MonoDrive controller is configured at the factory to ensure detection of
Underload faults in a wide variety of pumping applications. In rare cases (as with certain
pumps in shallow wells) this trip level may result in nuisance faults. If the pump is installed
in a shallow well, activate the controller and observe system behavior. Once the controller
begins to regulate pressure, check operation at several flow rates to make sure the default
sensitivity does not induce nuisance Underload trips.
If it becomes necessary to desensitize the Underload trip level, remove power and wait five
minutes for the controller to discharge. Once the internal voltages have dissipated, locate
the Underload Potentiometer on the upper-right corner of the User Interface Board as
shown in the figure on the next page.
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