WEG CFW08 Vector inverter User Manual page 112

FAULT
E04 Power-on
Inverter Manual (key
Overtemperature Auto-reset
DI
E05
Motor/Inverter
Overload
Ixt Function
E06
External Fault
E08
CPU Error
(Watchdog)
E09 Contact WEG
Program Memory (refer to section 7.3)
Error (Checksum)
E10 Power-on
Keypad Manual (key
Error Auto-reset
DI
E14 Power-on
Self-Tuning Manual (key
Fault
E24 It is automatically reset
Programming when the incompatible
error parameters are changed
E31 It is reset automatically
Keypad (HMI) when the communication
Connection Fault between inverter and the
keypad is reestablished.
E41 Contact WEG
Self- Diagnosis (refer to section 7.3)
Fault
DIAGNOSTICS AND TROUBLESHOOTING
RESET (1)
)
)
)
Note:
(1) In case of E04 Fault due to inverter overtemperature, allow the
inverter to cool down before trying to reset it.
In the types 10A/200-240 and 10A/380-480V fitted with internal
Class A RFI-filters, the fault E04 can be caused by internal airflow
overtemperature. Please check blower installed inside.
NOTE!
Long motor cables (longer than 150ft (50 m)) can generate excessive
capacitance to ground. This can cause nuisance ground fault trip and
consequently disabling by E00 fault immediately after the inverter has
been enabled. Solution:
Reduce the switching frequency (P297).
Connect a load reactor in series with the motor supply line.
Refer to Section 8.16.
POSSIBLE CAUSES
Ambient temperature too high (>40
current too high.
Blower locked or defective.
P156 set too low for the motor that is being used.
Motor is under an actual overload condition.
Ani DI (DI3 and/or DI4) programmed for external fault
detection is open (not connected to GND - XC1).
Electrical noise.
Memory with corrupted values.
Defective contact in the HMI-CFW08-RS cable.
Electrical noise in the installation
(electromagnetic interference).
Motor is not connected to the inverter output.
Wrong motor connection (wrong voltage, lack of one
phase).
The used motor is too small for the inverter
(P401<0.3 x P295). Use V/Fcontrol.
The value of P409 (stator resistance) is too high for the used
inverter.
Incompatible parameters were programmed
Refer to table 5.1.
Keypad cable misconnected.
Electrical noise in the installation (electromagnetic
interference).
Inverter power circuit is defective.
o
C) and/or output
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