Tank Size And Bump Mode Adjustments - Franklin Electric MONODRIVE UTILITY Manuel Du Propriétaire

INSTALLATION AND SETUP
Drive Configuration

Tank Size and Bump Mode Adjustments

The Tank Size and Bump Mode settings of the drive can be changed to modify system perfor-
mance. Bump Mode controls how hard the drive will pump for the very short time period just
before attempting to shut down. The default Tank Size and Bump Mode settings are compatible
with most applications. For applications with large pressure tanks or trouble shutting down, the
Tank Size and Bump Mode can be modified to make the controller more aggressive.
Tank Size Selection (DIP SW3 – Position 3): The MonoDrive Utility generally allows for a smaller
pressure tank to be used. If a larger pressure tank exists in the system, the pressure control may
need to be adjusted to help the system properly shut off at low or no flow. If a smaller tank is being
used and the system is shutting off as expected, SW3 Position 3 may remain in the ST (down)
position. If a larger pressure tank is used, or if the system is having difficulty shutting down at low
or no flow, place SW3 Position 3 in the LT (up) position to improve the ability of the system to shut
off in low-flow conditions.
Aggressive Bump (DIP SW3 - Position 4): In applications where the default bump setting is not
aggressive enough for the system to shut down as expected, the bump can be modified to be more
aggressive. To enable the Aggressive Bump feature, place SW3 Position 4 in the AB (up) position.
Bump Disable (DIP SW3 - Position 5): In applications where the occasional pressure bump is not
desirable, the bump feature of the drive may be disabled. To disable the bump feature, place SW3
Position 5 in the BD (up) position.
IMPORTANT: Disabling the bump feature will result in the system having more difficulty shutting
down in low-flow situations.
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