28
Fault Tracing
Honeywell
6
8
System fault
• Component failure
• Faulty operation
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)!
9
Undervoltage
The DC-link voltage has
exceeded the internal safety
limit:
• Most probable cause: too
low a supply voltage
• Frequency converter internal
fault
• Power outages
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.
11
Output phase
supervision
Current measurement has
detected that there is no current
in one motor phase
Check motor cable and
motor.
13
Frequency con-
verter undertem-
perature
Heat sink temperature is under -
10°C
Check the ambient temper-
ature.
14
Frequency con-
verter overtem-
perature
Heat sink is overheated.
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.
15
Motor stalled
Motor stall protection has
tripped
Check that the motor is
able to rotate freely
16
Motor overtem-
perature
Motor overheating has been
detected by frequency converter
motor temperature model.
Motor is overloaded
Decrease the motor load
If no motor overload exists,
check the temperature
model parameters.
17
Motor Underload
Motor underload protection has
tripped
Check motor and load, e.g.
for broken belts or dry
pumps
Fault
code
Fault name
Possible cause
Correcting actions
Table 6.1 : Fault codes
