Franklin Electric SUBDRIVE UTILITY, Руководство пользователя

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INSTALLATION AND SETUP
Drive Configuration
27
Performance Settings
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).
Minimum Frequency (DIP SW3 – Position 8)
The default minimum speed for submersible pumps is 35 Hz. If necessary to prevent hydraulic
vibration in the piping system, the minimum speed can be raised to 40 Hz. To raise the minimum
speed, place DIP SW3 Position 8 in the
Hz
(up) position.
NOTE:
The default for surface pump applications is 40 Hz. When the drive is programmed for a
surface application, this switch has no effect.
Underload Sensitivity
The SubDrive Utility is configured at the factory to ensure detection of Under-
load 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 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 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 sen-
sitivity setting.
The Underload Sensitivity MUST be adjusted only when the SubDrive Utility is POWERED OFF. The
new setting will not take effect until the drive is powered up.
Risk of damage to
d
rive 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 operation.
• Confirm that an adequate pressure relief valve is included in the system.