WEG CFW-11 User Manual - page 97
Troubleshooting and Maintenance
6
CFW-11 | 6-7
Fault/Alarm
Description
Possible Causes
F416
(7)
IGBT Current Imb. Fault
Fault of current imbalance on the IGBTs.
IGBTs of the same phase presented a current imbalance
above 15 %.
A417
(7)
Thermal Imbalance
The temperature difference between IGBT modules of
the same phase (U, V, W) was above 10 °C (50 ° F).
The temperature difference between IGBT modules
of different phases (U and V, U and W, V and W) was
above 10 °C (50 ° F). The temperature difference
between rectifier modules of different phases (R and S,
R and T, S and T) was above 10 °C (50 °F).
F418
(7)
Air Control
Overtemperature
Fault of overtemperature of the internal air on the
control board.
Temperature of the internal air of the control board is
above 85 °C (185 ° F).
A419
(7)
Control Air Temperature
High Alarm
Alarm of overtemperature of the internal air on the
control board.
When the temperature of the internal air of the control
board is above 70 °C (158 °F).
A700
(4)
Disconnected HMI
Alarm or fault related to the HMI disconnection.
RTC function block has been activated in the SoftPLC
applicative and the HMI is disconnected from the inverter.
F701
(4)
Disconnected HMI
A702
(4)
Disabled Inverter
Alarm indicating that the General Enable
command is not active.
The SoftPLC Run/Stop command is equal to Run or a
movement block has been enable while the inverter is
general disabled.
A704
(4)
Two Enabled
Movements
Two movements have been enabled.
It occurs when two or more movement blocks are
enabled simultaneously.
A706
(4)
Speed Reference not
Programmed for SoftPLC
Speed reference not programmed for SoftPLC.
It occurs when a movement block has been enabled and
the speed reference has not been configured for SoftPLC
(check P0221 and P0222).
Models where they can occur and additional notes:
(1) With a Profibus DP module connected into the slot 3 (XC43).
(2) All the frame sizes G and H models.
(3) With an IOE-01 (02 or 03) module connected into the slot 1 (XC41).
(4) All the models with a SoftPLC applicative.
(5) Very long motor cables (longer than 100 meters) present a high parasite capacitance against the ground. The circulation of parasite currents through
those capacitances may cause the ground fault circuit activation and thus disabling the inverter with F074, immediately after the inverter enabling.
(6) CFW110370T4, CFW110477T4, and all the frame sizes G and H models.
(7) Only frame size H.
(8) Below -20 °C (- 4 °F) for frame size H.
(9) Only for models of frame sizes F and G.
NOTE!
The range from P0750 to P0799 is destined to the SoftPLC applicative user faults and alarms.