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Schneider Electric Altivar 58 VW3-A58101 Manual de usuario Pagina 86

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ALTIVAR
58 Keypad Display VVDED397047US R8/01
Chapter 3 — Diagnostics and Troubleshooting 08/01
86
© 1998–2001 Schneider Electric All Rights Reserved
USING FAULT CODES AND MESSAGES TO SOLVE PROBLEMS
The fault messages displayed on the keypad display can be used to
troubleshoot problems. The fault messages can be divided into three
categories:
• Protective faults: These faults are displayed when the drive controller
detects conditions that, if left uncorrected, may result in damage to the
drive controller and/or motor. The drive controller shuts down to
prevent further damage from occurring.
• Drive faults: These faults are displayed when a problem is detected in
the drive controller.
• Process faults: These faults are displayed when a process feedback
or communication signal used by the drive controller is interrupted
momentarily or completely.
MAINTENANCE
Read the safety statements on page 87 before proceeding with any
maintenance or troubleshooting procedures.
The following steps should be done at regular intervals:
• Check the condition and tightness of the connections.
• Make sure ventilation is effective and temperature around the drive
controller remains within specified levels.
• Remove dust and debris from the drive controller, if necessary.
Table 23: Fault Messages
Protective Faults Drive Faults Process Faults
Input phase loss Precharge fault Loss of 4–20 mA signal
Undervoltage EEPROM fault Loss of RS-485
Overvoltage Internal fault External fault
Drive overheating Internal communication fault Speed feedback fault
Motor overload Power rating error Communication network fault
Overbraking Option error
Motor phase loss Option removed
Overcurrent EEPROM checks
Motor short circuit
Motor overheating
Thermal sensor fault
Overspeed
Ramp not followed
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