bLF
[BRAKE CONTROL FAULT] |
Cause:
- Brake release current not reached.
- Brake engage frequency threshold [Brake engage freq] (bEn) = [No] (nO) whereas the brake control [Brake assignment] (bLC) is assigned.
- Loss of one phase at drive output.
- Output contactor open.
Remedy:
- Check the drive/motor connection.
- Check the motor windings.
- Check the [Brake release I FW] (Ibr) setting in the [APPLICATION FUNCT.] (FUn-) menu.
- Apply the recommended settings for [Brake engage freq] (bEn).
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CrF
[PRECHARGE FAULT] |
Cause:
Precharge relay control or damaged precharge resistor.
Remedy:
Replace the drive.
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EEF
[EEPROM FAULT] |
Cause:
Internal memory issue.
Remedy:
- Check the environment (electromagnetic compatibility).
- Replace the drive.
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IF1
[INTERNAL FAULT] |
Cause:
Unknown rating.
Remedy:
- Replace the drive.
- Restart the drive.
- Contact a Schneider Electric representative.
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IF2
[INTERNAL FAULT] |
Cause:
- HMI card not recognized.
- HMI card incompatible.
- No display present.
Remedy:
- Replace the drive.
- Restart the drive.
- Contact a Schneider Electric representative.
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IF3
[INTERNAL FAULT] |
Cause:
EEPROM issue.
Remedy:
- Replace the drive.
- Restart the drive.
- Contact a Schneider Electric representative.
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IF4
[INTERNAL FAULT] |
Cause:
Industrial EEPROM issue.
Remedy:
- Replace the drive.
- Restart the drive.
- Contact a Schneider Electric representative.
|
OCF / o.CF / OC.F
[OVERCURRENT] |
Cause:
- Parameters in the [SETTINGS] (SEt-) and [MOTOR CONTROL] (drC-) menus are incorrect.
- Inertia or load too high.
- Mechanical locking.
- Phase/Ground Motor short-circuit.
- Impedant short-circuit.
Remedy:
- Check the parameters in [SETTINGS] (SEt-) and [MOTOR CONTROL] (drC-).
- Check the size of the motor/drive/load.
- Check the state of the mechanism.
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SCF
[MOTOR SHORT CIRCUIT] |
Cause:
- Short-circuit at the drive output.
- Significant ground leakage current at the drive output if several motors are connected in parallel.
- Grounding at the drive output.
Remedy:
- Check the cables connecting the drive to the motor, and the motor insulation.
- Reduce the switching frequency.
- Connect chokes in series with the motor.
|
SoF
[OVERSPEED] |
Cause:
- Instability.
- Driving load too high.
Remedy:
- Check the motor, gain and stability parameters.
- Add a braking resistor.
- Check the size of the motor/drive/load.
|
CnF
[NETWORK FAULT] |
Cause:
Communication detected fault on the communication card.
Remedy:
- Check the environment (electromagnetic compatibility).
- Check the wiring.
- Check the time out.
- Replace the option card.
- See the [CANopen fault mgt] (COL) parameter to define the stop mode.
|
CoF
[CANopen FAULT] |
Cause:
Interruption in communication on the CANopen bus.
Remedy:
- Check the communication bus.
- Refer to the relevant product documentation.
|
EPF
[EXTERNAL FAULT] |
Cause:
Depending on user.
Remedy:
Depending on user.
|
ILF
[INTERNAL LINK FAULT] |
Cause:
Identification detected fault of the communication card by the drive.
Remedy:
- Check that the option card is compatible with the drive.
- Replace the option card.
|
LFF
[4-20mA LOSS] |
Cause:
Loss of the 4-20 mA reference on input AI3.
Remedy:
Check the connection on input AI3.
|
ObF
[OVERBRAKING] |
Cause:
Braking too sudden or driving load.
Remedy:
- Increase the deceleration time.
- Install a braking resistor if necessary.
- Activate the [Dec ramp adapt.] (bra) function if compatible with the application.
|
OHF
[DRIVE OVERHEAT] |
Cause:
Drive temperature too high.
Remedy:
Check the motor load, the drive ventilation and the environment. Wait for the drive to cool before restarting.
|
OLF
[MOTOR OVERLOAD] |
Cause:
- Triggered by excessive motor current.
- [Cold stator resist.] (rSC) parameter value incorrect.
Remedy:
- Check the [Mot. therm. current] (ItH) setting of the motor thermal protection, check the motor load. Wait for the drive to cool before restarting.
- Remeasure [Cold stator resist.] (rSC).
|
OPF
[MOTOR PHASE LOSS] |
Cause:
- Loss of one phase at drive output.
- Output contactor open.
- Motor not connected or motor power too low.
- Instantaneous instability in the motor current.
Remedy:
- Check the connections from the drive to the motor.
- If an output contactor is being used, set [Output Phase Loss] (OPL) to [Output cut] (OAC).
- Test on a low-power motor or without a motor: In factory settings mode, motor output phase loss detection is active. To check the drive in a test or maintenance environment without having to switch to a motor with the same rating as the drive, deactivate motor phase loss detection ([Output Phase Loss] (OPL) = [No] (nO)).
- Check and optimize the [IR compensation] (UFr), [Rated motor volt.] (UnS), and [Rated mot. current] (nCr) parameters, and perform an [Auto tuning] (tUn) operation.
|
OSF
[MAINS OVERVOLTAGE] |
Cause:
- Line voltage is too high.
- Disturbed line supply.
Remedy:
Check the line voltage.
|
PHF
[INPUT PHASE LOSS] |
Cause:
- Drive incorrectly supplied or a fuse blown.
- Failure of one phase.
- Three-phase ATV312 used on a single-phase line supply.
- Unbalanced load (protection only operates with the drive on load).
Remedy:
- Check the power connection and the fuses.
- Reset.
- Use a three-phase line supply.
- Disable the detection by setting [Input phase loss] (IPL) = [No] (nO).
|
SLF
[MODBUS FAULT] |
Cause:
- Interruption in communication on the Modbus bus.
- Remote display terminal enabled ([HMI command] (LCC) = [Yes]) and terminal disconnected.
Remedy:
- Check the communication bus.
- Refer to the relevant product documentation.
- Check the link with the remote display terminal.
|
tnF
[AUTO TUNING FAULT] |
Cause:
- Special motor or motor whose power is not suitable for the drive.
- Motor not connected to the drive.
Remedy:
- Use the L ratio or the [Var. torque] (P) ratio (see [U/F mot 1 selected] (UFt)).
- Check that the motor is present during auto-tuning.
- If an output contactor is being used, close it during auto-tuning.
|
CFF
[INCORRECT CONFIG.] |
Cause:
- The current configuration is inconsistent.
- Addition or removal of an option.
Remedy:
- Return to factory settings or retrieve the backup configuration, if it is valid. See the [Restore config.] (FCS) parameter.
|
CFI
[INVALID CONFIG] |
Cause:
- Invalid configuration.
- The configuration loaded in the drive via the serial link is inconsistent.
Remedy:
- Check the configuration loaded previously.
- Load a consistent configuration.
|
USF
[UNDERVOLTAGE] |
Cause:
- Insufficient line supply.
- Transient voltage dip.
- Damaged precharge resistor.
Remedy:
- Check the voltage and the voltage parameter.
- Tripping threshold in [UNDERVOLTAGE] (USF):
ATV312….M2: 160 V
ATV312….M3: 160 V
ATV312….N4: 300 V
ATV312….S6: 430 V
- Replace the drive.
|
InIt
Initialization in progress |
Cause:
- The microcontroller is initializing.
- Search underway for communication configuration.
Remedy:
Wait for initialization to complete.
|
COM.E (Flashing)
Communication error |
Cause:
- Time out detected fault (50 ms).
- This message is displayed after 20 attempts at communication.
Remedy:
Check communication connections.
|
A-17 (Flashing)
Alarm button |
Cause:
- A button has been held down for more than 10 seconds.
- The keypad is disconnected.
- The “keypad” wakes up when a button is pressed.
Remedy:
Release the button or check keypad connection.
|
cLr (Flashing)
Confirmation of detected fault reset |
Cause:
This is displayed when the STOP button is pressed once during a remote terminal detected fault.
Remedy:
None required (informational).
|
dEU.E (Flashing)
Drive disparity |
Cause:
The drive brand does not match that of the remote terminal.
Remedy:
Use a compatible remote terminal.
|
rOM.E (Flashing)
ROM anomaly |
Cause:
The remote terminal detects a ROM anomaly on the basis of checksum calculation.
Remedy:
Replace remote terminal.
|
rAM.E (Flashing)
RAM anomaly |
Cause:
The remote terminal detects a RAM anomaly.
Remedy:
Replace remote terminal.
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CPU.E (Flashing)
Other detected faults |
Cause:
Other detected faults.
Remedy:
Check drive diagnostics.
|