Diagnostics And Troubleshooting; Alarms, Faults And Possible Causes - WEG MVW3000 Programming Manual

6 DIAGNOSTICS AND TROUBLESHOOTING

This chapter assists the user in the identification and correction of possible faults that may occur during the inverter
operation. Guidance on the necessary periodical inspections and cleaning of the inverter is also provided.

6.1 ALARMS, FAULTS AND POSSIBLE CAUSES

When faults or alarms are detected, the inverter indicates them on the HMI. Alarms and faults are displayed as
AXXX (for alarms) and FXXX (for faults), and "XXX" is the code of the alarm or fault.
A0094
!
Inverter
ventilation alarm
Exit
If a fault occurs the inverter is disabled, whereas in an alarm event it continues operating normally. In order to
restart the inverter after a fault has occurred, it must be reset. The reset can normally be performed in the following
manners:
O
By pressing the key
Automatically through P0206 (Auto-reset).
Via digital input: DI3 (P0265 = 12) or DI4 (P0266 = 12) or DI5 (P0267 = 12) or DI6 (P0268 = 12) or DI7
(P0269 = 12) or DI8 (P0270 = 12) or DI9 (P0271 = 12) or DI10 (P0272 = 12): DI Reset.
Via networks.
The table below defines each alarm/fault code, explains how to reset the faults and shows the possible causes for
each one.
Fault/alarm
A0008
Time-out in the synchronism with
the input line during synchronous
transfer
F0009
Incorrect status of the input cubicle
F0013
Feedback missing on sinusoidal
filter
0rpm
LOC
Warning
A0094
Reset
13:38
Figure 6.1: Example of alarm and fault codes displayed on the HMI
(Manual Reset).
Reset
O
Manual ( /RESET key).
Contact WEG Technical Assistance.
Auto-reset.
It resets automatically after the cause is
eliminated.
DIAGNOSTICS AND TROUBLESHOOTING
LOC
F0014
Warning
!
F0014
The closing of the
input CB failed
Exit 13:38
Synchronism function could not synchro-
nize successfully.
Incorrect operation of the input cubicle.
Defective input cubicle.
Wiring of the DI3 input (XC7:3) and/or action
of the DI4 input (XC7:4) of PIC card defec-
tive.
Fault on the closing or opening of the sinu-
soidal filter contactor.
Defect on the DI/DO connections of the si-
nusoidal filter drive and feedback function.
0rpm
Reset
Possible causes
MVW3000 | 6-1
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