QUICKSTART GUIDE
Operation
9
System Response:
System response time affects how the drive reacts to the pressure transducer/sensor
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)
•
Ramp Time (default = 10)
•
Acceleration Time (default = 2 for SUB, 20 for CEN)
•
Deceleration Time (default = 2 for SUB, 20 for CEN)
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.
•
Shallow Set:
If the pump is installed in an extremely shallow well and the system continues to trip, then
adjust 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, adjust to a higher sensitivity setting.
Underload Off Time:
This setting determines how long the drive will wait before attempting to run after an
Underload event. The default time is five minutes, but is user-adjustable from one minute to 48 hours.
QR Code:
This screen displays a code identifying the drive for connection to the mobile app. Refer to
Drive Connect Plus Mobile App” on page 10
.
Operation
System Status
When the drive is controlling the motor and pump, the display will be illumi
-
nated and the following information will be shown:
1.
Whether the system is in HAND or AUTO mode.
2. Whether the motor of running or stopped.
3. When using a pressure transducer, the system displays the current sys
-
tem pressure in PSI.
When using a standard pressure sensor, the system displays the current motor speed (in Hz).
When running in HAND mode, the system displays the keypad setpoint.
4. When using a pressure transducer in AUTO mode, the motor speed is displayed at the lower left of the
screen. In HAND mode, current system pressure is displayed.
When using a standard pressure sensor, this field is not displayed.
5. The lower right of the screen displays output current in Amps.
6. Internal drive temperatures are displayed at the left side of the screen.
Fault Detected
If a fault condition occurs, the drive will display the fault code and description.
Several faults will reset automatically. For faults that require a manual reset, turn off power
to the drive and restart after five minutes.
Refer to
“Diagnostic Fault Codes” on page 11
for details.
