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28
Fault
Fault name
code
8
System fault
9
Undervoltage
Output phase
11
supervision
Frequency con-
13
verter undertem-
perature
Frequency con-
14
verter overtem-
perature
15
Motor stalled
Motor overtem-
16
perature
17
Motor Underload
Table 6.1 : Fault codes
6
Fault Tracing
Possible cause
• Component failure
• Faulty operation
The DC-link voltage has
exceeded the internal safety
limit:
• Most probable cause: too
low a supply voltage
• Frequency converter internal
fault
• Power outages
Current measurement has
detected that there is no current
in one motor phase
Heat sink temperature is under -
10°C
Heat sink is overheated.
Motor stall protection has
tripped
Motor overheating has been
detected by frequency converter
motor temperature model.
Motor is overloaded
Motor underload protection has
tripped
Honeywell
Correcting actions
Reset the fault and restart.
Should the fault re-occur,
contact the distributor near
to you.
NOTE! If fault F8 occurs,
find out the subcode of the
fault from the Fault History
menu under M (minutes)!
In case of temporary supply
voltage break reset the fault
and restart the frequency
converter.
Check the supply voltage.
If it is adequate, an internal
failure has occurred.
Contact the distributor near
to you.
Check motor cable and
motor.
Check the ambient temper-
ature.
Check that the cooling air
flow is not blocked.
Check the ambient temper-
ature.
Make sure that the switch-
ing frequency is not too
high in relation to ambient
temperature and motor
load.
Check that the motor is
able to rotate freely
Decrease the motor load
If no motor overload exists,
check the temperature
model parameters.
Check motor and load, e.g.
for broken belts or dry
pumps
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