Performance Settings; Drawdown Feature (Fe Connect App Only); System Response (Dip Sw3); Underload Sensitivity - Franklin Electric SubDrive 50 Manual Del Usaurio

Performance Settings

Risk of damage to drive or water system can occur due to improper adjustment
or settings.
• System behavior should be monitored when adjusting any of these settings to ensure proper opera-
tion.
• Confirm that an adequate pressure relief valve is included in the system.

Drawdown Feature (FE Connect App Only)

When using a pressure transducer, an optional "cut-in" pressure can be set to allow for more water to be
drawn from the tank. For example, a system setpoint pressure of 50 PSI and a cut-in pressure of 30 PSI
would cause the drive to maintain system pressure at 50 PSI when running; however when the system is
idle, the drive will not start the motor until the system pressure drops below 30 PSI.
Refer to "Drive Configuration Using the FE Connect App" on page 32
and set the cut-in pressure.

System Response (DIP SW3)

When using a pressure transducer with a surface pump application, the system response can be adjusted as
follows:
System Response
Proportional Gain (P)
Integration Time (I)
Ramp Rate (R)
Select one DIP switch for preset FAST, MED, or SLOW system response parameters. Selecting more than one
switch will result in an Invalid DIP Switch Fault indicated by F24 on the display. If no selection is made, the
system will default to SLOW (no fault occurs).
Refer to "Surface Application System Response Settings" on page 33
Minimum Frequency: In surface pump applications, placing DIP SW3 Position 6 in the OFF (down) position
will set the minimum output frequency to 30Hz (default). Move the switch to the ON (up) position to set the
minimum output frequency to 15Hz. More precise settings are available when using the FE Connect mobile
app. Refer to "Pump and Motor Settings" on page

Underload Sensitivity

The drive is configured at the factory to ensure detection of Underload faults in a wide variety of pump-
ing applications. In rare cases (as with certain pumps in shallow wells), this trip level may result in
unnecessary faults. If the pump is installed in a shallow well, activate the drive and observe system
behavior. Once the system begins to regulate pressure, check operation at several flow rates to make
sure the default sensitivity does not cause false Underload trips.
If it becomes necessary to adjust 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.
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 will need to be adjusted counter-clockwise to a lower sensitivity set-
ting. Check the Underload trip level and repeat as necessary.
SW3-3 FAST
(VR, MH, or DDS)
70
0.2
90
32.
to activate
SW3-5 SLOW
SW3-4 MED
53
.02
50
for more options.
DRIVE CONFIGURATION
Performance Settings
(BT 4)
35
.02
20
27