Performance Settings; System Response (Dip Sw2 - Positions 2-4); Underload Sensitivity - Franklin Electric MONODRIVE UTILITY Manuel Du Propriétaire

INSTALLATION AND SETUP
Drive Configuration

Performance Settings

Risk of damage to
adjustment or settings.
• System behavior should be monitored when adjusting any of these settings to ensure
proper operation.
• Confirm that an adequate pressure relief valve is included in the system.
System Response (DIP SW2 – Positions 2–4)
When using a pressure transducer, the system response time can be adjusted to match user
demands related to a specific piping network. Faster response times can improve pressure stability
in some systems. However, if the response is too fast, the system could overshoot, leading to over-
pressure, rapid cycling, or hydraulic noise.
Select one DIP switch for preset FAST, MED, or SLOW system response parameters. Selecting more
than one switch will result in an Invalid Configuration fault. If no selection is made, the system will
default to SLOW (no fault occurs).

Underload Sensitivity

The MonoDrive Utility 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 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 VFD 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 setting. Check the Underload trip level and repeat as necessary.
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 potentiometer will need to be adjusted clockwise to a higher
sensitivity setting.
The Underload Sensitivity MUST be adjusted only when the MonoDrive Utility is POWERED OFF.
The new setting will not take effect until the drive is powered up.
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rive or water system can occur due to improper