Troubleshooting And Maintenance; Operation Of The Faults And Alarms - WEG CFW-11M RB User Manual

6 TROUBLESHOOTING AND MAINTENANCE

This chapter presents the following:
- Lists all faults and alarms that may occur.
- Indicates the possible causes of each fault and alarm.
- Lists most frequent problems and corrective actions.
- Presents instructions for periodic inspections and
preventive maintenance in the equipment.

6.1 OPERATION OF THE FAULTS AND ALARMS

When a fault is detected fault (FXXX):
The PWM pulses are blocked.
;
The keypad displays the fault code and description.
;
The "STATUS" LED starts flashing red.
;
The output relay set to "NO FAULT" opens.
;
Some control circuitry data is saved in the EEPROM memory:
;
- The fault or alarm code that occurred (shifts the last nine previous faults and alarms).
- The state of the operating hours counter (P0043) and the powered-up hours counter (P0042).
Reset the converter to return the drive to a "READY" condition in the event of a fault. The following reset
options are available:
Removing the power supply and reapplying it (power-on reset).
;
Pressing the operator key
;
Through the "Reset" soft key.
;
Automatically by setting P0340 (auto-reset).
;
Through a digital input: DIx = 20 (P0263 to P0270).
;
When an alarm situation alarm (AXXX) is detected:
The keypad displays the alarm code and description.
;
The "STATUS" LED changes to yellow.
;
The PWM pulses are not blocked (the converter is still operating).
;
Troubleshooting and Maintenance
(manual reset).
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