Franklin Electric SubDrive Connect Plus Guide De Démarrage Rapide page 10

Drive Configuration
• If a FE MagForce motor has been configured, this parameter defaults to the SFA rating of the
motor at the designated pump power rating.
• If a FE MagForce Custom motor model has been configured, this parameter defaults to 1 A and
must be adjusted as appropriately.
5. Sensor Type: Configures the drive for the type of pressure transducer or sensor being used. Selecting
Transducer displays the Sensor Range screen. If a standard Pressure Sensor (5A) is selected, the tar-
get pressure is set using the adjusting screw on the sensor itself. The System Response screen is dis-
played next for Pressure Sensor use.
6. Sensor Range: This is only configurable when the sensor type is transducer. This setting scales system
operation to the installed transducer. The range is 100 to 300, with a default setting of 200 PSI.
Setpoints: Drive speed control is based on the difference between the setpoint and the transducer feedback
value. As user demand (flow) causes pressure changes, the drive varies the output frequency (motor speed)
to maintain pressure at or near the target setpoint.
If a single drive/pump system has different pressure requirements for separate applications at separate
times, there are two user configurable setpoints in the system — Setpoint 1 and Setpoint 2 — which are
selectable through an optional switch connected to the Dual Setpoint input on the control board. Refer to
"Control Circuit Connections" on page
When the input is closed, Setpoint 2 is used.
NOTE: Factory defaults for both setpoints are 0 PSI. This puts the drive in the Sleep/Stop state, keeping the
drive from running while programming takes place. The Drive will run 5 seconds after SETPOINT 1 is
adjusted above 0 PSI and NEXT button is pressed.
Setpoint 1: When using a Pressure Transducer, use this screen to set the desired target pressure the
7.
system will maintain during normal operation. Recommended maximum value is 5% less than sensor
max for proper operation.
8. Setpoint 2: When using a Pressure Transducer, an alternate setpoint can be set here and activated by
closing a switch connected to the Dual Setpoint terminal block.
IMPORTANT: Monitor pressure gauge during initial startup to ensure system does not over-pressurize.
9. Drawdown: When using a pressure transducer, the "cut-in" pressure offset can be set to allow for more
water to be drawn from the system pressure tank before a sleeping drive will wake up. This will reduce
sleep/wakeup cycles.
For example, a system setpoint pressure of 50 PSI and a drawdown value of 20 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.
10. System Response: System response time affects how the drive reacts to the pressure transducer/sen-
sor feedback. Faster response times can improve pressure stability in some systems. However, if the
response is too fast, the system could overshoot, leading to overpressure, rapid cycling, or hydraulic
noise. Selections include SLOW, MEDIUM, FAST, and Custom. These control the following configuration
items:
• Proportional Gain, default = 500
• Integral Time, default = 25 (2.5 seconds)
• Ramp Time, default = 10 (1.0 seconds)
• Acceleration Time, default = 2s for SUB, 20s for CEN
• Deceleration Time, default = 2s for SUB, 20s for CEN
11. Underload Sensitivity: The drive is configured 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.
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5. When the input is open, Setpoint 1 is used for pressure control.