Maintenance and Fault Display

- Ensure that the recommendations regarding the environment, mounting, and connections have been followed.
- The first detected fault is saved, displayed, and causes the drive to lock.
- The drive can indicate a fault remotely via a logic output or relay, which can be configured in the [1.5 INPUTS/OUTPUTS CFG] (I-O-) menu.

[1.10 DIAGNOSTICS] Menu

- Accessible only with the graphic display terminal.
- Displays faults and their causes in plain text and allows for tests to be carried out.

Clearing the Fault

- Disconnect the drive power supply in the event of a non-resettable fault and wait for the display to disappear completely.
- The drive can be unlocked by:
- Turning off the drive until the display disappears, then turning it on again.
- Automatically, as described in the [AUTOMATIC RESTART] (Atr-) function.
- Using a logic input or control bit assigned to the [FAULT RESET] (rSt-) function.
- Pressing the STOP/RESET button on the graphic display terminal.

[1.2 MONITORING] (SUP-) Menu

- Used to prevent and find the causes of faults by displaying the drive state and its current values.
- Accessible with the integrated display terminal.

Spares and Repairs

- Consult Schneider Electric product support.

Faults – Causes – Remedies

- If the starter does not start and no fault is displayed:
- Check the power supply to the drive.
- Ensure that the "Fast stop" or "Freewheel" functions are correctly assigned and that the corresponding logic inputs are powered up.
- Verify that the run command input or inputs are activated according to the selected control mode.
- If the reference or command channel is assigned to a communication bus, the drive will display [Freewheel] (nSt) and remain in stop mode until a command is received from the communication bus.

Faults That Cannot Be Reset Automatically

- The cause of the fault must be removed before resetting by turning off and then back on.
- Certain faults (AI2F, EnF, SOF, SPF, tnF) can be reset remotely via a logic input or control bit ([Fault reset] (rSF) parameter).
- Some faults (EnF, InFA, InFb, SOF, SPF, tnF) can be inhibited and cleared remotely via a logic input or control bit ([Fault inhibit assign.] (InH) parameter).

- AI2F: Non-conforming signal on analog input AI2. (continued >>)
- bOF: The braking resistor is under excessive stress. (continued >>)
- bUF: Short-circuit output from the braking unit. (continued >>)
- CrF1: Precharge error. (continued >>)
- CrF2: DC bus charging fault (thyristors). (continued >>)
- dCF: Current difference between power block A and B. (continued >>)
- EEF1: Control EEPROM error. (continued >>)
- EEF2: Power EEPROM error. (continued >>)
- EnF: Encoder feedback fault. (continued >>)
- FCF1: Output contactor stuck closed. (continued >>)
- Fd2: Damper remains open. (continued >>)
- HdF: IGBT desaturation fault. (continued >>)
- LF: Communication fault between option card and drive. (continued >>)
- InF1: Rating error. (continued >>)
- InF2: Incompatible power board. (continued >>)
- InF3: Internal serial link fault. (continued >>)
- InF4: Internal manufacturing area fault. (continued >>)
- InF6: Unrecognized option installed in the drive. (continued >>)
- InF7: Incomplete initialization of the drive. (continued >>)
- InF8: Incorrect control power supply. (continued >>)
- InF9: Incorrect current measurements. (continued >>)
- InFA: Input stage not operating correctly. (continued >>)
- InFb: Drive temperature sensor fault. (continued >>)
- InFC: Fault on the electronic time measurement component. (continued >>)
- InFE: Internal microprocessor fault. (continued >>)
- OCF: Overcurrent fault. (continued >>)
- PrF: Fault with the drive’s “Power removal” safety function. (continued >>)
- SCF1: Motor short circuit. (continued >>)
- SCF2: Impedant short circuit. (continued >>)
- SCF3: Ground short circuit. (continued >>)
- SOF: Overspeed fault. (continued >>)
- SPF: Speed feedback loss. (continued >>)
- tnF: Auto-tuning fault. (continued >>)
- APF: Application fault. (continued >>)
- CnF: Communication network fault. (continued >>)
- COF: CAN communication fault. (continued >>)
- EPF1: External fault triggered by an LI/Bit. (continued >>)
- EPF2: External fault triggered by a communication network. (continued >>)
- FCF2: Output contactor remains open. (continued >>)
- Fd1: Damper stuck closed. (continued >>)
- LCF: Input contactor fault. (continued >>)
- LFF2, LFF3, LFF4: Loss of 4-20 mA reference on analog input AI2, AI3, or AI4. (continued >>)
- nFF: No flow fault. (continued >>)
- ObF: Overbraking fault. (continued >>)
- OHF: Drive overheating. (continued >>)
- OLC: Process overload fault. (continued >>)
- OLF: Motor overload fault. (continued >>)
- OPF1: One motor phase loss at drive output. (continued >>)
- OPF2: Three motor phase loss. (continued >>)
- OSF: Mains overvoltage. (continued >>)
- OtF1: PTC1 probes overheating. (continued >>)
- OtF2: PTC2 probes overheating. (continued >>)
- OtFL: PTC probes overheating on input LI6. (continued >>)
- PtF1: PTC1 probes open or short-circuited. (continued >>)
- PtF2: PTC2 probes open or short-circuited. (continued >>)
- PtFL: PTC probes on input LI6 open or short-circuited. (continued >>)
- SCF4: IGBT short circuit. (continued >>)
- SCF5: Motor short circuit. (continued >>)
- SLF1: Modbus communication fault. (continued >>)
- SLF2: PC communication fault. (continued >>)
- SLF3: HMI communication fault. (continued >>)
- SPIF: PI feedback fault. (continued >>)
- SSF: Torque/current limit fault. (continued >>)
- tJF: IGBT overheating. (continued >>)
- ULF: Process underload fault. (continued >>)
- CFF: Incorrect configuration. (continued >>)
- CFI: Invalid configuration. (continued >>)
- HCF: Cards pairing fault. (continued >>)
- PHF: Input phase loss. (continued >>)
- PrtF: Power Identification fault. (continued >>)
- USF: Undervoltage fault. (continued >>)