Troubleshooting - Franklin Electric SubMonitor Manual De Instalación

Troubleshooting

Fault Message
SF Amps Set Too High
Phase Reversal
Overrange
Underload
Overload
Overheat
Unbalance
Overvoltage
Undervoltage
False Starts
14
Problem / Conditions
SF Amps setting
above 350 Amps
Reversed incoming
voltage phase sequence
Measured voltage or
current is exceeding the
selected motor settings
Normal line current
Low line current
Normal line current
High line current
Motor temperature
sensor has detected
excess motor winding
temperature
Current difference between
any two legs exceeds
programmed setting
Line voltage exceeds
programmed setting
Line voltage below
programmed setting
Power has been
interrupted too many times
in a 10 second period
Possible Cause
Motor SF Amps not entered
Incoming power problem
Wrong Motor Voltage or SFA
Setting
Excessively high line voltage
or motor current
Wrong SF Max Amps setting
Over pumping well
Clogged pump intake
Closed valve
Loose pump impeller
Broken shaft or coupling
Phase loss
Wrong SF Max Amps setting
High or low line voltage
Ground fault
Pump or motor dragging
Motor stalled or bound pump
High or low line voltage
Motor is overloaded
Excessive current unbalance
Poor motor cooling
High water temperature
Excessive electrical noise
(VFD in close proximity)
Phase loss
Unbalanced power supply
Open delta transformer
Unstable power supply
Poor connections in motor
power circuit
Unstable or weak power supply
Chattering contacts
Loose connections in motor
power circuit
Arcing contacts