Troubleshooting And Maintenance; Operation Of The Faults - WEG CFW-11W G2 RB Series User Manual

6 TROUBLESHOOTING AND MAINTENANCE

This chapter presents:
The list of all faults and alarms.
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Most probable causes for each fault and alarm.
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The list of the most common problems and corrective actions.
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Instructions for periodical inspections of the product and preventive maintenance.
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6.1 OPERATION OF THE FAULTS

When a fault (FXXX) is identified, what occurs is:
Locking of the PWM pulses.
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Indication on the display of the fault description and code.
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The "STATUS" LED flashes red.
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The relay programmed for "NO FAULTS" is turned off.
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Saving of some data on the EEPROM of the control circuit:
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- The fault or alarm code occurred (it moves the nine previous faults).
- The status of the hours enabled (P0043) and energized (P0042) counter.
For the converter to return to normal operation right after the occurrence of a fault, it is necessary to reset it,
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which can be done as follows:
- Switching off the power supply and switching it back on (power-on reset).
- Pressing the (manual reset) key.
- Via soft key "Reset".
- Automatically by means of the P0340 setting (auto-reset).
- Via digital input: DIx = 20 (P0263 to P0270).
When an alarm (AXXX) is identified, what occurs is: re:
Indication on the display of the alarm description and code.
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The "STATUS" LED becomes yellow.
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The PWM pulses are not blocked and the converter remains in operation.
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Troubleshooting and Maintenance
CFW-11MW G2 RB | 6-1
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