Schneider ATV61 Drives

Schneider ATV61 Drives Fault Codes:

Fault Code and MeaningCause and Remedy
AI2F
[AI2 input]
Cause: Non-conforming signal on analog input AI2.



Remedy:

  • Check the wiring of analog input AI2 and the value of the signal.

  • If necessary, modify the fault configuration via [AI2 4-20mA loss] (LFL2).
bOF
[DBR overload]
Cause: The braking resistor is under excessive stress.



Remedy:

  • Check the size of the resistor and wait for it to cool down.

  • Check the [DB Resistor Power] (brP) and [DB Resistor value] (brU) parameters.
bUF
[DB unit sh. Circuit]
Cause:

  • Short-circuit output from braking unit.

  • Braking unit not connected.




Remedy:

  • Check the wiring of the braking unit and the resistor.

  • Check the braking resistor.

  • The monitoring of this fault must be disabled by the [Brake res. fault Mgt] (bUb) parameter if there is no braking unit or resistor connected to the drive.
CrF1
[Precharge]
Cause: Load relay control fault or charging resistor damaged.



Remedy:

  • Switch the drive off and then back on again.

  • Check the internal connections.

  • Inspect/repair the drive.
CrF2
[Thyr. soft charge]
Cause: DC bus charging fault (thyristors).



Remedy:

  • Inspect/repair the drive.
dCF
[Differential curent Fault]
Cause: Current difference between power block A and B (ATV61EC60 … M14N4 or ATVEM15…M24Y only).



Remedy:

  • Check thyristor with [TEST THYRISTORS].

  • Check IGBT with [TRANSISTOR TEST].

  • Check current transformer.
EEF1
[Control Eeprom]
Cause: Internal memory fault, control card.



Remedy:

  • Check the environment (electromagnetic compatibility).

  • Turn off, reset, return to factory settings.

  • Inspect/repair the drive.
EEF2
[Power Eeprom]
Cause: Internal memory fault, power card.



Remedy:

  • Inspect/repair the drive.
EnF
[Encoder]
Cause: Encoder feedback fault.



Remedy:

  • Check [Number of pulses] (PGI) and [Encoder type] (EnS).

  • Check that the encoder’s mechanical and electrical operation, its power supply and connections are all correct.

  • If necessary, reverse the direction of rotation of the motor ([Output Ph rotation] (PHr) parameter) or the encoder signals.
FCF1
[Out. contact. stuck]
Cause: The output contactor remains closed although the opening conditions have been met.



Remedy:

  • Check the contactor and its wiring.

  • Check the feedback circuit.
Fd2
[Damper open]
Cause: The damper remains open although the closing conditions have been met.



Remedy:

  • Check the damper and its wiring.

  • Check the feedback circuit.

  • Check the time delay for the function.
HdF
[IGBT desaturation]
Cause: Short-circuit or grounding at the drive output.



Remedy:

  • Check the cables connecting the drive to the motor, and the insulation of the motor.

  • Perform the diagnostic tests via the [1.10 DIAGNOSTICS] menu.
ILF
[internal com. link]
Cause: Communication fault between option card and drive.



Remedy:

  • Check the environment (electromagnetic compatibility).

  • Check the connections.

  • Check that no more than 2 option cards (max. permitted) have been installed on the drive.

  • Replace the option card.

  • Inspect/repair the drive.
InF1
[Rating error]
Cause: The power card is different from the card stored.



Remedy:

  • Check the reference of the power card.
InF2
[Incompatible PB]
Cause: The power card is incompatible with the control card.



Remedy:

  • Check the reference of the power card and its compatibility.
InF3
[Internal serial link]
Cause: Communication fault between the internal cards.



Remedy:

  • Check the internal connections.

  • Inspect/repair the drive.
InF4
[Internal MFG area]
Cause: Internal data inconsistent.



Remedy:

  • Recalibrate the drive (performed by Schneider Electric Product Support).
InF6
[Internal-option]
Cause: The option installed in the drive is not recognized.



Remedy:

  • Check the reference and compatibility of the option.
InF7
[Internal-hard init.]
Cause: Initialization of the drive is incomplete.



Remedy:

  • Turn off and reset.
InF8
[Internal-ctrl supply]
Cause: The control power supply is incorrect.



Remedy:

  • Check the control section power supply.
InF9
[Internal- I measure]
Cause: The current measurements are incorrect.



Remedy:

  • Replace the current sensors or the power card.

  • Inspect/repair the drive.
InFA
[Internal-mains circuit]
Cause: The input stage is not operating correctly.



Remedy:

  • Perform the diagnostic tests via the [1.10 DIAGNOSTICS] menu.

  • Inspect/repair the drive.
InFb
[Internal- th. sensor]
Cause:

  • The drive temperature sensor is not operating correctly.

  • The braking unit’s temperature sensor is not operating correctly.




Remedy:

  • Replace the temperature sensor.

  • Inspect/repair the drive.

  • Replace the braking unit’s temperature sensor.

  • Inspect/repair the braking unit.

  • The monitoring of this fault must be disabled by the [Brake res. fault Mgt] (bUb) parameter if there is no braking unit connected to the drive.
InFC
[Internal-time meas.]
Cause: Fault on the electronic time measurement component.



Remedy:

  • Inspect/repair the drive.
InFE
[internal- CPU]
Cause: Internal microprocessor fault.



Remedy:

  • Turn off and reset. Inspect/repair the drive.
OCF
[Overcurrent]
Cause:

  • Parameters in the [SETTINGS] and [MOTOR CONTROL] menus are not correct.

  • Inertia or load too high.

  • Mechanical locking.




Remedy:

  • Check the parameters.

  • Check the size of the motor/drive/load.

  • Check the state of the mechanism.
PrF
[Power removal]
Cause: Fault with the drive’s “Power removal” safety function.



Remedy:

  • Inspect/repair the drive.
SCF1
[Motor short circuit]
Cause: Short-circuit or grounding at the drive output.



Remedy:

  • Check the cables connecting the drive to the motor, and the insulation of the motor.

  • Perform the diagnostic tests via the [1.10 DIAGNOSTICS] menu.
SCF2
[Impedant sh. circuit]
Cause: Impedant short circuit.



Remedy:

  • Reduce the switching frequency.

  • Connect chokes in series with the motor.

  • Check the adjustment of speed loop and brake.

  • If [Energy Sav.] (nLd) motor control type is used, change to an U/F type.
SCF3
[Ground short circuit]
Cause: Significant earth leakage current at the drive output if several motors are connected in parallel.



Remedy:

  • Check the cables connecting the drive to the motor, and the insulation of the motor.

  • Reduce the switching frequency.

  • Connect chokes in series with the motor.
SOF
[Overspeed]
Cause: Instability or driving load too high.



Remedy:

  • Check the motor, gain and stability parameters.

  • Add a braking resistor.

  • Check the size of the motor/drive/load.

  • Check the parameter settings for the [FREQUENCY METER] (FqF-) function.
SPF
[Speed fdback loss]
Cause:

  • Encoder feedback signal missing.

  • No signal on “Pulse input”, if the input is used for speed measurement.




Remedy:

  • Check the wiring between the encoder and the drive.

  • Check the encoder.

  • Check the wiring of the input and the detector used.
tnF
[Auto-tuning]
Cause:

  • Special motor or motor whose power is not suitable for the drive.

  • Motor not connected to the drive.




Remedy:

  • Check that the motor/drive are compatible.

  • Check that the motor is present during auto-tuning.

  • If an output contactor is being used, close it during auto-tuning.

APF



[Application fault]

Cause:

Controller Inside card fault.



Remedy:

  • Please refer to the card documentation.

CnF



[Com. network]

Cause:

Communication fault on communication card.



Remedy:

  • Check the environment (electromagnetic compatibility).

  • Check the wiring.

  • Check the time-out.

  • Replace the option card.

  • Inspect/repair the drive.

COF



[CAN com.]

Cause:

Interruption in communication on the CANopen bus.



Remedy:

  • Check the communication bus.

  • Check the time-out.

  • Refer to the CANopen User’s Manual.

EPF1



[External flt-LI/Bit]

Cause:

Fault triggered by an external device, depending on user.



Remedy:

  • Check the device, which caused the fault, and reset.

EPF2



[External fault com.]

Cause:

Fault triggered by a communication network.



Remedy:

  • Check for the cause of the fault and reset.

FCF2



[Out. contact. open.]

Cause:

The output contactor remains open although the closing conditions have been met.



Remedy:

  • Check the contactor and its wiring.

  • Check the feedback circuit.

Fd1



[Damper stuck]

Cause:

The damper remains closed although the opening conditions have been met.



Remedy:

  • Check the damper and its wiring.

  • Check the feedback circuit.

  • Check the time delay for the function.

LCF



[input contactor]

Cause:

The drive is not turned on even though [Mains V. time out] (LCt) has elapsed.



Remedy:

  • Check the contactor and its wiring.

  • Check the time-out.

  • Check the line/contactor/drive connection.

LFF2
LFF3
LFF4



[AI2 4-20mA loss]
[AI3 4-20mA loss]
[AI4 4-20mA loss]

Cause:

Loss of the 4-20 mA reference on analog input AI2, AI3 or AI4.



Remedy:

  • Check the connection on the analog inputs.

  • If necessary, modify the fault configuration via [AIx 4-20mA loss] (LFLx).

nFF



[No Flow Fault]

Cause:

Zero fluid.



Remedy:

  • Check and rectify the cause of the fault.

  • Check the zero fluid detection parameters.

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:

Power board -PCB over temperature.

Braking unit over temperature.

Phase module over temperature.

Rectifier over temperature.



Remedy:

  • Check the motor load, the drive ventilation and the ambient temperature.

  • Wait for the drive to cool down before restarting.

OLC



[Proc. Overload Flt]

Cause:

Process overload.



Remedy:

  • Check and remove the cause of the overload.

  • Check the parameters of the [PROCESS UNDERLOAD] (OLd-) function.

OLF



[Motor overload]

Cause:

Triggered by excessive motor current.



Remedy:

  • Check the setting of the motor thermal protection.

  • Check the motor load.

  • Wait for the drive to cool down before restarting.

OPF1



[1 motor phase loss]

Cause:

Loss of one phase at drive output.



Remedy:

  • Check the connections from the drive to the motor.

OPF2



[3 motor phase loss]

Cause:

Motor not connected or motor power too low.

Output contactor open.

Instantaneous instability in the motor current.



Remedy:

  • Check the connections from the drive to the motor.

  • If an output contactor is being used, parameterize [Output Phase Loss] (OPL) = [Output cut] (OAC).

  • Test on a low power motor or without a motor: In factory settings mode, motor phase loss detection is active [Output Phase Loss] (OPL) = [Yes] (YES). To check the drive in a test or maintenance environment, without having to use a motor with the same rating as the drive, deactivate motor phase loss detection.

  • Check and optimize the [IR compensation] (UFr), [Rated motor volt.] (UnS) and [Rated mot. current] (nCr) parameters, and perform [Auto tuning] (tUn).

OSF



[Mains overvoltage]

Cause:

Line voltage too high.

Disturbed line supply.



Remedy:

  • Check the line voltage.

OtF1



[PTC1 overheat]

Cause:

Overheating of the PTC1 probes detected.



Remedy:

  • Check the motor load and motor size.

  • Check the motor ventilation.

  • Wait for the motor to cool before restarting.

  • Check the type and state of the PTC probes.

OtF2



[PTC2 overheat]

Cause:

Overheating of the PTC2 probes detected.



Remedy:

  • Check the motor load and motor size.

  • Check the motor ventilation.

  • Wait for the motor to cool before restarting.

  • Check the type and state of the PTC probes.

OtFL



[LI6=PTC overheat]

Cause:

Overheating of PTC probes detected on input LI6.



Remedy:

  • Check the motor load and motor size.

  • Check the motor ventilation.

  • Wait for the motor to cool before restarting.

  • Check the type and state of the PTC probes.

PtF1



[PTC1 probe]

Cause:

PTC1 probes open or short-circuited.



Remedy:

  • Check the PTC probes and the wiring between them and the motor/drive.

PtF2



[PTC2 probe]

Cause:

PTC2 probes open or short-circuited.



Remedy:

  • Check the PTC probes and the wiring between them and the motor/drive.

PtFL



[LI6=PTC probe]

Cause:

PTC probes on input LI6 open or short-circuited.



Remedy:

  • Check the PTC probes and the wiring between them and the motor/drive.

SCF4



[IGBT short circuit]

Cause:

Power component fault.



Remedy:

  • Perform a test via the [1.10 DIAGNOSTICS] menu.

  • Inspect/repair the drive.

SCF5



[Motor short circuit]

Cause:

Short-circuit at drive output.



Remedy:

  • Check the cables connecting the drive to the motor, and the motor’s insulation.

  • Perform tests via the [1.10 DIAGNOSTICS] menu.

  • Inspect/repair the drive.

SLF1



[Modbus com.]

Cause:

Interruption in communication on the Modbus bus.



Remedy:

  • Check the communication bus.

  • Check the time-out.

  • Refer to the Modbus User’s Manual.

SLF2



[PC com.]

Cause:

Fault communicating with PC Software.



Remedy:

  • Check the PC-Software connecting cable.

  • Check the time-out.

SLF3



[HMI com.]

Cause:

Fault communicating with the graphic display terminal.



Remedy:

  • Check the terminal connection.

  • Check the time-out.

SPIF



[PI Feedback]

Cause:

PID feedback below lower limit.



Remedy:

  • Check the PID function feedback.

  • Check the PID feedback supervision threshold and time delay.

SSF



[Torque/current lim]

Cause:

Switch to torque limitation.



Remedy:

  • Check if there are any mechanical problems.

  • Check the parameters of [TORQUE LIMITATION] (tLA-) and the parameters of the [TORQUE OR I LIM. DETECT.] (tId-) fault.

tJF



[IGBT overheat]

Cause:

Drive overheated.



Remedy:

  • Check the size of the load/motor/drive.

  • Reduce the switching frequency.

  • Wait for the motor to cool before restarting.

ULF



[Proc. Underload Flt]

Cause:

Process underload.



Remedy:

  • Check and remove the cause of the underload.

  • Check the parameters of the [PROCESS OVERLOAD] (OLd-) function.

CFF



[Incorrect config.]

Cause:

Option card changed or removed.

The current configuration is inconsistent.



Remedy:

  • Check that there are no card errors.

  • In the event of the option card being changed/removed deliberately, see remarks.

  • Return to factory settings or retrieve the backup configuration, if it is valid.

CFI



[Invalid config.]

Cause:

Invalid configuration. The configuration loaded in the drive via the bus is inconsistent.

[Max frequency] (tFr) has been set at a value higher than 599Hz.



Remedy:

  • Check the configuration loaded previously.

  • Load a compatible configuration.

  • Set [Max frequency] (tFr) at a value lower or equal to 599 Hz.

HCF



[Cards pairing]

Cause:

The [CARDS PAIRING] (PPI-) function has been configured and a drive card has been changed.



Remedy:

  • In the event of a card error, reinsert the original card.

  • Confirm the configuration by entering the [Pairing password] (PPI) if the card was changed deliberately.

PHF



[Input phase loss]

Cause:

Drive incorrectly supplied or a fuse blown.

Failure of one phase.

3-phase ATV61 used on a single-phase line supply.

Unbalanced load.

(This protection only operates with the drive on load).



Remedy:

  • Check the power connection and the fuses.

  • Use a 3-phase line.

  • Disable the fault by [Input phase loss] (IPL) = [No] (nO).

PrtF



[Power Ident]

Cause:

The [Power Identification] (Prt) parameter is incorrect.

Control card replaced by a control card configured on a drive with a different rating.



Remedy:

  • Enter the correct parameter (reserved for Schneider Electric product support).

  • Check that there are no card errors.

  • In the event of the control card being changed deliberately, see remarks.

USF



[Undervoltage]

Cause:

Line supply too low.

Transient voltage dip.

Damaged pre-charge resistor.

(This protection only operates with the drive running in motor mode).



Remedy:

  • Check the voltage and the parameters of [UNDERVOLTAGE MGT] (USb-).

  • Replace the pre-charge resistor.

  • Inspect/repair the drive.
CFF
[Incorrect config.]
Cause:

  • Option card changed or removed.

  • Control block replaced by a control block configured on a drive with a different rating.

  • The current configuration is inconsistent.




Remedy:

  • Check that there are no card errors.

  • In the event of the option card being changed/removed deliberately, see manual remarks.

  • Check that there are no card errors.

  • In the event of the control block being changed deliberately, see manual remarks.

  • Return to factory settings or retrieve the backup configuration, if it is valid.
CFI / CFI2
[Invalid config.]
Cause:

  • Invalid configuration.

  • The configuration loaded in the drive via the bus or communication network is inconsistent.




Remedy:

  • Check the configuration loaded previously.

  • Load a compatible configuration.
CSF
[Ch. Sw. fault]
Cause:

  • Switch to not valid channels.




Remedy:

  • Check the function parameters.
dLF
[Dynamic load fault]
Cause:

  • Abnormal load variation.




Remedy:

  • Check that the load is not blocked by an obstacle.

  • Removal of a run command causes a reset.
FbE
[FB fault]
Cause:

  • Function blocks error.




Remedy:

  • See [FB Fault] (FbFt) for more details.
HCF
[Cards pairing]
Cause:

  • The [CARDS PAIRING] (PPI-) function has been configured and a drive card has been changed.




Remedy:

  • In the event of a card error, reinsert the original card.

  • Confirm the configuration by entering the [Pairing password] (PPI) if the card was changed deliberately.
PHF
[Input phase loss]
Cause:

  • Drive incorrectly supplied or a fuse blown.

  • One phase missing.

  • 3-phase ATV32 used on a single-phase line supply.

  • Unbalanced load.

  • This protection only operates with the drive on load.




Remedy:

  • Check the power connection and the fuses.

  • Use a 3-phase line supply.

  • Disable the detected fault by [Input phase loss] (IPL) = [No] (nO).
USF
[Undervoltage]
Cause:

  • Line supply too low.

  • Transient voltage dip.




Remedy:

  • Check the voltage and the parameters of [UNDERVOLTAGE MGT] (USb-).
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 and parameters.
A-17 (Flashing)
[Alarm button]
Cause:

  • A key has been held down for more than 10 seconds.

  • The keypad is disconnected.

  • The keypad wakes up when a key is pressed.




Remedy:

  • Release the key.

  • Check keypad connection.
CLr (Flashing)
[Confirmation of detected fault reset]
Cause:

  • This is displayed when the STOP key is pressed once if the active command channel is the remote display terminal.




Remedy:

  • Informational message; no specific remedy required.
dEU.E (Flashing)
[Drive disparity]
Cause:

  • The drive brand does not match that of the remote display terminal.




Remedy:

  • Ensure the remote display is compatible with the drive.
rOM.E (Flashing)
[ROM anomaly]
Cause:

  • The remote display terminal detects a ROM anomaly on the basis of checksum calculation.




Remedy:

  • Replace the remote display terminal.
rAM.E (Flashing)
[RAM anomaly]
Cause:

  • The remote display terminal detects a RAM anomaly.




Remedy:

  • Replace the remote display terminal.
CPU.E (Flashing)
[Other detected faults]
Cause:

  • Other detected faults.




Remedy:

  • Check for other fault codes on the drive.