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SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
10. Fault codes
F1 Overcurrent fault
Drive has detected a high current in the output phase.
S1 = Hardware trip: Current above 4*Ih
S2 = Only in SVX unit
S3 = Current controller supervision. Current limit too low or
current peak value too high.
Possible cause and solutions
1.
Sudden increase in load
•
Check motor load
2.
Short circuit in motor cables
•
Check motor and cables
3.
Motor is under magnetized at start
•
Make identification run
4.
Unsuitable motor
5.
Sine filter is used but drive settings are not correct
•
Activate Sine filter parameter (P6.7.5) in system menu
F2 Overvoltage fault
DC-link voltage has exceeded the drive protection limits.
S1 = Hardware trip.
500 Vac unit DC voltage above 911 Vdc
690 Vac unit DC voltage above 1200 Vdc
S2 = Overvoltage control supervision (only 690 Vac unit).
DC voltage has been above 1100 Vdc for too long.
Possible cause and solutions
1.
Too short a deceleration time
•
Increase deceleration time
•
Use brake chopper and brake resistor
•
Use Brake chopper unit
•
Use active front end unit (AFE ARFIFF02)
•
Activate overvoltage controller
2.
High overvoltage spikes in supply
•
Activate overvoltage controller
3.
690 V unit operating too long above 1100 Vdc
•
Check input voltage
F3 Earth fault
Earth fault protection ensures that the sum of the motor
phase currents is zero. The overcurrent protection is always
working and protects the frequency converter from earth
faults with high currents.
S1 = Sum of motor current is not zero
Possible cause and solutions
1.
Insulation failure in cables or motor
•
Check motor cables and motor
F5 Charge switch
Charge switch status is not correct when start command
is given
S1 = Charge switch was open when START command
was given
Possible cause and solutions
1.
Charge switch was open when the START command
was given
•
Check connection of the feedback from charging relay
•
Reset the fault and restart
Should the fault re-occur, contact your local distributor.
F6 Emergency stop
Emergency stop command has been given by using a
special option board.
F7 Saturation fault
S1 = Hardware failure
Possible cause and solutions
1.
If there is a brake chopper in use
•
Check the isolation resistance and the resistance on
the brake resistor
2.
FR4-FR8: Power module
•
Measure the power module directly from its terminals.
3.
Hardware
•
Check the capacitors