"Schneider Electric Altivar 71 Fault Codes" indicate an error occur in drive due to internal hardware problem or parameter issue. With the help of these error code you can easily identify and correct the issue in drive.

Schneider Electric Altivar 71 Fault Codes and their solutions:

• AI2F – no signal at analog input AI2
• AnF - the speed measured by the encoder does not match the set one
• bOF – braking resistor overload
• brF – braking feedback error
• bUF - a short circuit of the braking circuit
• CrF1 - malfunction of the charge circuit and inrush current limitation
• CrF2 - malfunction of the charge circuit and inrush current limitation
• ECF - encoder malfunction
• EEF1 - malfunction of the EEPROM memory chip of the control circuit
• EEF2 - malfunction of the EEPROM memory chip of the power circuit
• EnF – encoder communication error
• FCF1 - malfunction of the switching circuit of the output circuit
• HdF - short circuit or earth fault at the output of the frequency converter
• ILF - communication error between the expansion board and the control board
• lnF1 - the power board does not correspond to this model of the frequency converter
• OCF - converter overload
• PrF – power removal function execution error
• SCF1 - short circuit or earth fault of the connected motor
• SCF2 - short circuit or earth fault of the connected motor
• SCF3 - the ground fault of the connected motor
• SPF - open encoder circuit
• APF - malfunction of the built-in controller
• CnF - communication error
• EPF1 - external fault, signal transmitted by "dry contact"
• EPF2 - external fault, the signal was transmitted over the communication network
• LCF - malfunction of the input power circuits of the converter
• LFF2 - no 4-20 mA signal at AI2 input
• LFF3 - no 4-20 mA signal at AI3 input
• LFF4 - no 4-20 mA signal at AI4 input
• ObF - too fast braking
• OHF - frequency converter overheating
• OLF - motor overload
• OPF1 - breakage of the input power circuit
• OPF2 - breakage of the output power circuit
• OSF - overvoltage
• OtF1 - overheating by PTC1 sensor
• OtF2 - overheating by PTC2 sensor
• OtFL - overheating by PTC sensor at LI6 input
• PtF1 - an open or short circuit of the PTC1 sensor circuit
• PtF2 - an open or short circuit of the PTC2 sensor circuit
• PtFL - an open or short circuit of the PTC sensor circuit at the input LI6
• SCF4 - a short circuit of the output IGBT module
• SCF5 - a short circuit of the electric motor
• tJF - output IGBT module overheating
• USF - low voltage.

Resetting faults in Schneider Electric drives typically involves accessing the drive's control interface, identifying the fault code, and taking appropriate action to clear the fault. Here's a general guide on how to reset faults in Schneider Electric drives:

1. Identify the Fault: When a fault occurs, the drive usually displays an alphanumeric fault code or indicator on its control panel or interface. Consult the drive's user manual or documentation to interpret the fault code and understand the nature of the fault.

2. Address the Cause: Before attempting to reset the fault, it's essential to identify and address the root cause of the issue. Common causes of faults in drives include overloads, overcurrents, overheating, power supply issues, motor faults, or communication errors. Inspect the drive, motor, and associated components to identify any issues or abnormalities.

3. Isolate Power: Ensure the drive is disconnected from the power supply and any external power sources before attempting to reset the fault. This is crucial for safety reasons and prevents any unintended consequences during the reset process.

4. Reset Procedure: Once the root cause of the fault has been addressed, you can attempt to reset the fault using the drive's control interface. The reset procedure may vary depending on the specific model and type of Schneider Electric drive you're using. Here are some general steps:

   • Navigate to the drive's control interface or keypad.
   • Locate the option to view or clear faults. This may be labeled as "Faults," "Alarms," or a similar term.
   • Select the option to clear faults or reset the fault memory.
   • Follow any on-screen prompts or instructions to confirm the fault reset operation.

5. Power On: After clearing the fault, reconnect the drive to the power supply and any external devices or components as necessary.

6. Monitor Operation: Once the fault has been reset, monitor the operation of the drive and associated equipment to ensure that the issue has been resolved successfully. Keep an eye on the drive's status indicators and any subsequent fault messages that may appear.

7. Documentation: It's essential to document the occurrence of faults, the actions taken to address them, and any relevant diagnostic information for future reference and troubleshooting.