Franklin Electric Fhoton Drive Guide D'installation page 22

Fault Flash
Sequence
1 Motor Underload
2 Overvoltage
3 Locked Pump
4 Low Flow Trip
5 Open Circuit
(a) At power-up: Short Circuit
6
(b) While running: Over Current
7 Overheated Controller
9 Internal Error
* "Cycle input power" means disconnecting PV power (if used) for at least five minutes, then re-connecting power.
22
Fault
Air-locked pump. Overpumped or dry
well. Worn pump, damaged shaft or
coupling, blocked pump or pump screen.
Misconnected input leads.
Incorrect sizing of solar array.
Motor/pump misaligned.
Pump bound up with sand or abrasive.
Dragging motor or pump.
Flow switch miswired.
Flow switch clogged.
Inadequate power to generate flow.
Motor wired incorrectly.
Loose or open connection to motor.
Defective motor or cable.
(a) Short in motor connections at
terminal or within motor cable.
(b) Debris in pump.
Unit in direct sunlight.
High ambient temperature.
Obstruction of air flow.
Controller internal processing has
encountered an incorrect value.
Table 6: Fault Code / Troubleshooting
Possible Causes Corrective Action
Wait for well to recover and auto restart to
occur. (See description in Underload (Dry
Well) section). If the problem persists, check
pump and motor.
Ensure array wiring is correct.
Check series/parallel connections.
Confirm array ratings are within Fhoton™
Drive input range.
Unit will attempt to free a locked pump. If it
is unsuccessful, check the motor
and pump.
Check that "FLOW SWITCH" terminal is
correctly wired to flow switch.
Check that flow switch is properly installed in
pipe discharge.
Check that the flow switch is not clogged.
Check that pipe discharge is not blocked.
Wait for sufficient solar power to pump
adequate water.
Check that the motor is wired correctly and
spinning in the correct direction.
Check motor cable connections.
If problem persists, check cable and motor.
(a) Check motor connections at terminal.
(b) Check pump.
If problem persists, check motor cable
and pump.
Shade unit.
Clean any debris from heat sink fins on rear
of enclosure.
This fault automatically resets when
temperature returns to safe level.
Cycle input power.*