Diagnostic Fault Codes - Franklin Electric SUBDRIVE UTILITY UT2W 5870202003 Serie Manuel Du Propriétaire

DIAGNOSTIC FAULT CODES

Number of
Fault
Flashes
Underload
x1
Undervoltage/
Overvoltage
x2
Locked Pump
x3
Open Circuit
x5
Short Circuit
Over Current
x6
28
Possible Cause
• Overpumped well
• Broken shaft or coupling
• Blocked pump screen
• Worn pump
• Air/gas locked pump
• Incorrect motor/pump hp setting
• Low input voltage
• High input voltage
• Incorrectly wired input leads
• Incorrect motor voltage setting
• Motor and/or pump misalignment
• Dragging motor and/or pump
• Abrasives in pump
• Amperage above SFA
• Loose connection
• Defective motor or drop cable
• Incorrect motor
• Open circuit reading on DC test at startup
• If fault occurs immediately after power-up
- Short circuit due to loose connection
- Defective cable
- Bad splice or failed motor
• If fault occurs while motor is running
- Over current due to trapped debris in pump
- Incorrect motor/pump hp setting
• Amperage exceeded 72 amps on DC test
or while running
• Incorrect wiring
• Phase to phase short circuit
• Phase to ground short circuit
Corrective Action
• Frequency near maximum with pump loaded less than Underload
Sensitivity setting (page 23)
• Well or tank is drawing down to pump inlet (out of water)
• High static, light pump loading; adjust underload sensitivity knob is
not out of water
• Set pump deeper in well to reduce chance of air/gas lock
• Verify DIP switch settings for motor/pump hp
• Check incoming line voltage
- For 115 VAC motor setting, incoming line should be xxx–yyy VAC
- For 230 VAC motor setting, incoming line should be 190–260 VAC
• Verify motor voltage setting
• Check input power connections and correct or tighten as necessary
• Correct incoming voltage; check circuit breaker or fuses; if problem
persists, contact power company
• Verify correct motor/pump hp setting
• Remove and repair/replace motor/pump as required
• Check motor terminal connections; tighten and repair as necessary
• Disconnect motor leads and check drop cable and motor resistance
• Check drive with a "dry" benchtop motor; if drive will not run the
motor or achieve underload fault at max frequency, replace drive
• Verify wire connections at motor terminal block
• Disconnect motor leads and use Megger to check motor insulation
resistance; if low reading, replace motor
• If fault is still present after resetting the drive and removing
motor leads, replace drive