Monitoring Functions; Protection Features; Over Temperature Foldback; Motor Soft Start - Franklin Electric SUBDRIVE UTILITY UT3P Manuel Du Propriétaire

OPERATION

Monitoring Functions

Monitoring Functions
When the drive is controlling the motor and pump, the status LEDs will be illuminated and the following
information will be shown:
• Running
• Idle
• Faulted (if applicable)
The drive also maintains a log of fault events.
If a fault condition occurs, the drive will display the fault code via LED blinks. Several faults will reset auto-
matically. For faults that require a manual reset, turn off power to the drive and restart after five minutes.
Refer to "System Diagnostics Fault History" on page

Protection Features

Over Temperature Foldback

The drive is designed for full power operation in ambient temperatures up to 122 °F (50 °C) at nominal input
voltage. In extreme thermal conditions, the controller will reduce output power in an attempt to avoid shut-
down or damage while still trying to provide water. Full output power is restored when the internal control-
ler temperature cools to a safe level.
NOTE: Motor over-temperature sensing is not provided by the drive.

Motor Soft Start

When the drive detects that water is being used, the drive starts and increases the motor speed slowly,
gradually increasing voltage, resulting in a cooler motor and lower start-up current compared to conven-
tional water systems. In those cases where the demand for water is small, the system may cycle on and off
at low speed. Because of the soft-start feature, this will not harm the motor or the pressure sensor.

Motor Overload Protection

The drive does not provide thermal overload protection for the motor.

Broken Pipe Protection

When enabled, the Broken Pipe Detection feature will stop the system and display a Fault if the drive runs at
full power for 10 minutes without reaching the pressure setpoint. If a Broken Pipe Fault occurs, drive power
must be cycled to clear the fault.
To enable Broken Pipe detection, set DIP SW3 Position 2 in the BP (up) position.
If the system is used with a sprinkler system or is being used to fill a pool or cistern, this feature should be
disabled.
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