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Problem solving
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
F13 Drive under temperature fault
Possible cause:
1.
Heatsink temperature is under –10°C
F14 Drive over temperature fault
Possible cause:
1.
Heatsink temperature is over acceptable limits.
See user’s manual for the temperature limit. Over
temperature warning is issued before actual trip limit
is reached
Correcting measures
•
Check correct amount and flow of cooling air
•
Check the heatsink for dust
•
Check ambient temperature
•
Make sure that switching frequency is not too high in
relation to ambient temperature and motor load
F15 Motor stalled
The motor stall protection protects the motor from short
time overload situations such as one caused by a stalled
shaft. The reaction time of the stall protection can be set
shorter than that of motor thermal protection. The stall
state is defined with two parameters, Stall current and Stall
frequency limit. If the current is higher than the set limit and
output frequency is lower than the set limit the stall state is
true. There is actually no real indication of the shaft rotation.
Stall protection is a type of over current protection.
•
Check motor and load
F16 Motor over temperature
Motor overheating has been detected by frequency
converter motor temperature model. Motor is overloaded.
Calculated temperature has exceeded 105 %.
Possible cause:
1.
Motor load is too high
2.
Motor values are set incorrectly
Correcting measures:
•
Decrease motor load
•
If no motor overload exists, check the temperature
model parameters
F17 Motor underload fault
The purpose of the motor underload protection is to ensure
that there is load on the motor when the drive is running.
If the motor loses its load there might be a problem in the
process, e.g. a broken belt or a dry pump.
The underload curve is a squared curve set between
the zero frequency and the field weakening point. The
protection is not active below 5Hz (the underload time
counter is stopped).
The torque values for setting the underload curve are set in
percentage which refers to the nominal torque of the motor.
The motor’s name plate data, parameter motor nominal
current and the drive’s nominal current IH are used to find
the scaling ratio for the internal torque value.
Correcting measures:
•
Check load
F22 EEPROM checksum fault
Possible cause:
1.
Parameter save fault
2.
Faulty operation
3.
Component failure
Correcting measures:
•
Should the fault re-occur, contact your local distributor.
F24 Counter fault
Possible cause:
1.
Values displayed on counters are incorrect
Correcting measures:
•
Have a critical attitude towards values shown on counters
F25 Microprocessor watchdog fault
Possible cause:
1.
Faulty operation
2.
Component failure
Correcting measures:
•
Reset the fault and restart
•
Should the fault re-occur, contact your local distributor
F26 Start-up prevention
Possible cause:
1.
Start-up of the drive has been prevented
2.
Run request is ON when a new application is loaded
to drive
Correcting measures:
•
Cancel prevention of start-up if this can be done safely
•
Remove Run Request