Schneider ATV950 Drives

Schneider ATV950 Drives Fault Codes:

Fault Code and MeaningCause and Remedy
NOA
[No Warning stored]		Cause: No warning stored.
FRF
[Fallback Frequency]		Cause: Reaction on event: Fallback frequency.

Remedy: Check fallback configuration.
RLS
[Speed Maintained]		Cause: Reaction on event: Speed maintained.

Remedy: Check speed settings.
STT
[Type of stop]		Cause: Reaction on event: Stop following [Type of stop] STT without triggering an error.

Remedy: Verify stop type configuration.
SRA
[Ref Frequency Warning]		Cause: Frequency reference reached.

Remedy: Informational warning.
LCA1
[Life Cycle Warn 1]		Cause: Life cycle warning 1.

Remedy: Check drive maintenance counters.
LCA2
[Life Cycle Warn 2]		Cause: Life cycle warning 2.

Remedy: Check drive maintenance counters.
PCPA
[PumpCycle warning]		Cause: Pumpcycle monitoring warning.
PEE
[PID error Warning]		Cause: PID error warning.
PFA
[PID Feedback Warn]		Cause: PID feedback warning.
PFAH
[PID High Fdbck Warn]		Cause: PID feedback high threshold reached.
PFAL
[PID Low Fdbck Warn]		Cause: PID feedback low threshold reached.
PISH
[Regulation Warning]		Cause: PID feedback monitoring warning.
LSA
[Limit Switch Reached]		Cause: Limit switch reached.
RSDA
[Slack Rope Warning]		Cause: Slack rope warning.
DLDA
[Dynamic Load Warning]		Cause: Dynamic load warning.
TP3A
[AI3 Th Warning]		Cause: AI3 Thermal warning.
TP4A
[AI4 Th Warning]		Cause: AI4 Thermal warning.
TP5A
[AI5 Th Warning]		Cause: AI5 Thermal warning.
AP1
[AI1 4-20 Warning]		Cause: AI1 4-20 mA loss warning.

Remedy: Check analog input connection.
AP3
[AI3 4-20 Warning]		Cause: AI3 4-20 mA loss warning.

Remedy: Check analog input connection.
AP4
[AI4 4-20 Warning]		Cause: AI4 4-20 mA loss warning.

Remedy: Check analog input connection.
AP5
[AI5 4-20 Warning]		Cause: AI5 4-20 mA loss warning.

Remedy: Check analog input connection.
THA
[Device Therm Warn]		Cause: Drive overheating warning.

Remedy: Check ventilation and load.
TJA
[IGBT Thermal Warning]		Cause: IGBT thermal state warning.

Remedy: Check motor load and drive cooling.
FCTA
[Fan Counter Warning]		Cause: Fan counter speed warning.
FFDA
[Fan Feedback Warning]		Cause: Fan feedback warning.
BOA
[BR Thermal Warning]		Cause: Braking resistor thermal warning.

Remedy: Check braking resistor sizing/cooling.
EFA
[Ext. Error Warning]		Cause: External error warning.
USA
[Undervoltage Warning]		Cause: Undervoltage warning.

Remedy: Check mains supply voltage.
UPA
[Preventive UnderV Active]		Cause: Controlled stop threshold is reached.

Remedy: Check supply stability.
ERN
[Forced Run]		Cause: Drive in forced run.

Remedy: Check operation mode.
FTA
[Mot Freq High Thd]		Cause: Motor frequency high threshold 1 reached.
FTAL
[Mot Freq Low Thd]		Cause: Motor frequency low threshold 1 reached.
FQLA
[Pulse Warn Thd Reached]		Cause: Pulse warning threshold reached.
F2AL
[Mot Freq Low Thd 2]		Cause: Motor frequency low threshold 2 reached.
FLA
[High Speed Reached]		Cause: High speed reached warning.

Remedy: Check motor speed limits.
RTAH
[Ref Freq High Thd reached]		Cause: Reference frequency high threshold reached.
RTAL
[Ref Freq Low Thd reached]		Cause: Reference frequency low threshold reached.
F2A
[2nd Freq Thd Reached]		Cause: Motor frequency high threshold 2 reached.
CTA
[Current Thd Reached]		Cause: Motor current high threshold reached.
CTAL
[Low Current Reached]		Cause: Motor current low threshold reached.
TTHA
[High Torque Warning]		Cause: High torque threshold reached.
TTLA
[Low Torque Warning]		Cause: Low torque threshold reached.
ULA
[Process Undld Warning]		Cause: Process underload warning.
OLA
[Process Overload Warning]		Cause: Overload warning.
SSA
[Torque Limit Reached]		Cause: Torque limit reached.
RTA
[Torque Control Warning]		Cause: Torque control warning.
TAD
[Dev Thermal reached]		Cause: Drive thermal threshold reached.

Remedy: Check drive cooling/ventilation.
TSA
[Motor Therm Thd reached]		Cause: Motor thermal threshold reached.
TS2
[Mot2 Therm Thd reached]		Cause: Motor 2 thermal threshold reached.
TS3
[Mot3 Therm Thd reached]		Cause: Motor 3 thermal threshold reached.
TS4
[Mot4 Therm Thd reached]		Cause: Motor 4 thermal threshold reached.
PTHA
[Power High Threshold]		Cause: Power high threshold reached.

Remedy: Monitor power consumption.
PTHL
[Power Low Threshold]		Cause: Power low threshold reached.

Remedy: Monitor power consumption.
CAS1
[Cust Warning 1]		Cause: Customer warning 1 active.
CAS2
[Cust Warning 2]		Cause: Customer warning 2 active.
CAS3
[Cust Warning 3]		Cause: Customer warning 3 active.

Remedy: Check customer defined settings.
CAS4
[Cust Warning 4]		Cause: Customer warning 4 active.

Remedy: Check customer defined settings.
CAS5
[Cust Warning 5]		Cause: Customer warning 5 active.

Remedy: Check customer defined settings.
URA
[AFE Mains Undervoltage]		Cause: AFE mains undervoltage.

Remedy: Check main supply lines.
POWD
[Power Cons Warning]		Cause: Power consumption warning.

Remedy: Check load or efficiency settings.
ANA
[Slipping warn]		Cause: Slipping warning.
BSA
[Load Mvt Warn]		Cause: Load movement warning.

Remedy: Check load mechanical integrity.
BCA
[Brake Cont Warn]		Cause: Brake contact warning.

Remedy: Check brake contactor/wiring.
TP1A
[AI1 Th Warning]		Cause: AI1 Thermal warning.
BSC
[Backspin Active]		Cause: Backspin control function is active.
IWA
[MonitorCircuit A Warn]		Cause: Monitoring circuit A warning.

Remedy: Check internal monitoring circuit.
IWB
[MonitorCircuit B Warn]		Cause: Monitoring circuit B warning.

Remedy: Check internal monitoring circuit.
IWC
[MonitorCircuit C Warn]		Cause: Monitoring circuit C warning.

Remedy: Check internal monitoring circuit.
IWD
[MonitorCircuit D Warn]		Cause: Monitoring circuit D warning.

Remedy: Check internal monitoring circuit.
CWA
[CabinetCircuit A Warn]		Cause: Cabinet circuit A warning.
CWB
[CabinetCircuit B Warn]		Cause: Cabinet circuit B warning.
CWC
[CabinetCircuit C Warn]		Cause: Cabinet circuit C warning.
TWA
[MotorWinding A Warn]		Cause: Motor winding A warning.
TWB
[MotorWinding B Warn]		Cause: Motor winding B warning.
TWC
[MotorBearing A Warn]		Cause: Motor bearing A warning.
TWD
[MotorBearing B Warn]		Cause: Motor bearing B warning.
CBW
[Circuit Breaker Warn]		Cause: Circuit breaker warning.
P24C
[Cab I/O 24V Warn]		Cause: Cabinet I/O 24V missing warning.

Remedy: Check 24V supply and wiring.
CLIM
[AFE Motor Limitation]		Cause: AFE motor limitation.
CLIG
[AFE Generator Limitation]		Cause: AFE regen limitation.
THSA
[AFE Sensor thermal state]		Cause: AFE thermal state warning.

Remedy: Check AFE cooling and sensors.
THJA
[AFE IGBT thermal state]		Cause: AFE IGBT thermal warning.

Remedy: Check AFE loading and cooling.
FFCA
[Cabinet Fan Fdbck Warn]		Cause: Cabinet fan feedback warning.
FCCA
[Cabinet Fan Counter Warn]		Cause: Cabinet fan counter warning.
CHA
[Cabinet Overheat Warn]		Cause: Cabinet overheat warning.
CMIJ
[CMI Jumper Warn]		Cause: CMI jumper warning.

Remedy: Check jumper configuration.
FCBA
[AFE Fan Counter Warn]		Cause: AFE fan counter warning.
FFBA
[AFE Fan Fdbck Warn]		Cause: AFE fan feedback warning.
MSDA
[M/S Device Warn]		Cause: Master/Slave device warning.
FCBB
[BUO Fan Counter Warn]		Cause: BUO fan counter warning.

Remedy: Check fan maintenance.
BSQA
[Backlash Warn]		Cause: Backlash warning.
FFBB
[BUO Fan Fdbck Warn]		Cause: BUO fan feedback warning.

Remedy: Check fan operation.
THWB
[BUO Thermal State Warn]		Cause: BUO thermal state warning.

Remedy: Check cooling system.
MDW
[AFE Bus Ref Warn]		Cause: AFE bus reference link warning.

Remedy: Check bus reference connection.
TPEA
[Encoder Thermal Warn]		Cause: Encoder module thermal warning.
TS1A
[Temp Sens AI1 Warn]		Cause: Temperature sensor AI1 warning (open circuit).

Remedy: Check sensor wiring and probe.
TS3A
[Temp Sens AI3 Warn]		Cause: Temperature sensor AI3 warning (open circuit).

Remedy: Check sensor wiring and probe.
TS4A
[Temp Sens AI4 Warn]		Cause: Temperature sensor AI4 warning (open circuit).

Remedy: Check sensor wiring and probe.
TS5A
[Temp Sens AI5 Warn]		Cause: Temperature sensor AI5 warning (open circuit).

Remedy: Check sensor wiring and probe.
DCRW
[DC Bus Ripple Warn]		Cause: DC Bus Ripple Warning.

Remedy: Check input phases and capacitors.
COPA
[Cooling Pump Warn]		Cause: Cooling pump warning resulting from the detection of an error during pump operation or resulting from [Pump Diagnostics] CPT– (related to ATV9L0).

Remedy: Check pump diagnostics.
MOA
[Module Overheat]		Cause: Module overheating warning resulting from the ambient temperature monitoring.

Remedy: Check ambient environment and ventilation.
AFFL
[Fallback Channel]		Cause: Automatic fallback behavior activated after a fieldbus communication interruption.
LKON
[ON Lock Warning]		Cause: ON lock warning resulting from an external device not ready.

Remedy: Check external device status.
INFM
[Internal Error 22]		Cause: Internal error 22 (Embedded Ethernet).

Remedy: Restart drive/Check Ethernet settings.
RFTA
[Pwr Backup Warn]		Cause: Power backup mode warning.

Remedy: Check power backup supply.
SLF1
[Modbus Com Inter.]		Cause: Modbus communication interruption warning.

Remedy: Check Modbus wiring and settings.
ACF1

[AFE DC-Caps Error]
Cause: AFE DC-capacitors error: DC-capacitors overcurrent.

Low mains voltage for too long.

Mains voltage is on a low limit, the modulation rate of the AFE increases to help protect the DC link capacitors.



Remedy:

  • Verify mains voltage.

  • Verify parameter setting for mains voltage.
ACF2

[AFE Current Control Error]
Cause: Mains voltage interruption.



Remedy:

  • Verify mains voltage.

  • Reduce number of voltage drop-downs.
ACF3

[AFE Line Filter Error]
Cause: Mains voltage drops during generator operation.



Remedy:

  • Verify mains voltage.
AnF

[Load slipping]
Cause: Not following the ramp. The difference between the output frequency and the speed feedback is not correct.



Remedy:

  • Confirm the drive rating according to the application (motor, load, and so on).

  • Verify the motor, gain, and stability parameters.

  • Add a braking resistor.

  • Verify the mechanical coupling and wiring of the encoder.

  • If the torque control function is used and if the encoder is assigned to speed feedback:

  • Set [Load slip detection] Sdd = [No].

  • Set both [Positive deadband] dbP and [Negative deadband] dbn to a value less than 10% of the nominal motor frequency.
ASF

[Angle error]
Cause: This error is triggered during the phase-shift angle measurement if the motor phase is disconnected or if the motor inductance is too high.



Remedy:

  • Verify the motor phases and the maximum current allowed by the drive.
bLF

[Brake Control]
Cause: Brake release current not reached.

The torque set point is not reached.

The fluxing current is not stable.



Remedy:

  • Verify the drive/motor connection.

  • Verify the motor windings.

  • Verify the [Brk Release Current] Ibr and [Brake release I Rev] Ird settings.
bOF

[Brake Resistor ovld]
Cause: The braking resistor is overloaded.



Remedy:

  • Wait for the braking resistor to cool down.

  • Verify the nominal power of the braking resistor.

  • Verify the [Braking Resistor Power] brP and [Braking Resistor Value] brV parameters.
brF

[Brake Feedback]
Cause: The status of the brake feedback contact or the status of the brake relay feedback is not correct compared to the brake logic control.

The brake does not stop the motor quickly enough (detected by measuring the speed on the “Pulse input” input).



Remedy:

  • Verify the brake feedback circuit.

  • Verify the brake logic control circuit.

  • Verify the brake behavior.

  • Verify that the setting of [Brake Release Time] brt and [Brake Engage Time] bEt take into account the brake response time.
b59F

[Backlash Error]
Cause: The torque threshold used for backlash function can not be reached after [BL Monit Delay] bqt.



Remedy:

  • Verify the settings.

  • Verify the coupling.
bUF

[DB unit sh. circuit]
Cause: Short-circuit from braking unit.

Braking unit not connected (not applicable for drive system braking unit option).



Remedy:

  • Verify the wiring of the braking unit.

  • Verify that the braking unit value is not too low.
bUFo

[DB unit op. circuit]
Cause: Open circuit from braking circuit and/or braking resistor.

Braking resistor and/or braking unit not connected/detected.



Remedy:

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

  • Verify by measurement that the resistance of the braking resistor is not too high.

  • Verify the parameter brI1.
bUHF

[BUO Overheat error]
Cause: The cabinet thermal switch of the braking unit option is at active state, the fan cabinet has been switched on but there is no fan feedback.

The digital inputs DI50 and DI51… configured as cabinet temperature monitoring… enclose thermo switch opens in case of over temperature.



Remedy:

  • Verify the braking unit option cabinet fan and its wiring.

  • Verify the temperature in the braking unit option enclosure is not too high.

  • Verify the setting of the thermo switch of the BUO (must be 60 °C (140 °F)).

  • Verify the BUO load, the ventilation, and the ambient temperature. Wait for the supply unit to cool down before restarting.
bUOC

[BUO Overcurrent error]
Cause: Parameters in the [Braking Resistor monit] brP – menu are not correct.

Braking load too high.



Remedy:

  • Verify the braking unit parameters.

  • Check the braking resistor.
CbF

[Circuit Breaker Error]
Cause: The DC bus voltage level is not correct compared to the circuit breaker logic control (start or stop pulse) after the configured timeout [Mains V. time out] LCt.



Remedy:

  • Verify the circuit breaker logic control (pulse time for start and stop).

  • Verify the mechanical state of the circuit breaker.
CFA

[CabinetCircuit A Error]
Cause: The monitoring function has detected an error. The digital input assigned to [CabinetCircuit A Assign] CFAA is active when the detected error duration is longer than [CabinetCircuit A Delay] FdA.



Remedy:

  • Identify the cause of detection.

  • Verify the connected device (door switch, thermal switch,…) and its wiring.

  • Verify the [CabinetCircuit A Assign] CFAA parameter assignment.
CFb

[CabinetCircuit B Error]
Cause: The monitoring function has detected an error. The digital input assigned to [CabinetCircuit B Assign] CFAb is active when the detected error duration is longer than [CabinetCircuit B Delay] Fdb.



Remedy:

  • Identify the cause of detection.

  • Verify the connected device (door switch, thermal switch,…) and its wiring.

  • Verify the [CabinetCircuit B Assign] CFAb parameter assignment.
CFC

[CabinetCircuit C Error]
Cause: The monitoring function has detected an error. The digital input assigned to [CabinetCircuit C Assign] CFAC is active when the detected error duration is longer than [CabinetCircuit C Delay] FdC.



Remedy:

  • Identify the cause of detection.

  • Verify the connected device (door switch, thermal switch,…) and its wiring.

  • Verify the [CabinetCircuit C Assign] CFAC parameter assignment.
CFF

[Incorrect Configuration]
Cause: Option module changed or removed.

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

The current configuration is inconsistent.



Remedy:

  • Verify that there is no detected error on the option module.

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

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

[Invalid Configuration]
Cause: Invalid configuration.

The configuration loaded in the drive via the commissioning tool or fieldbus is inconsistent.



Remedy:

  • Verify the loaded configuration.

  • Load a valid configuration.
CFI2

[Conf Transfer Error]
Cause: The configuration transfer to the drive was not successful or interrupted.

The configuration loaded is not compatible with the drive.



Remedy:

  • Verify the configuration loaded previously.

  • Load a compatible configuration.

  • Use PC software commissioning tool to transfer a compatible configuration.

  • Perform a factory setting.
CFI3

[Pre-settings Transfer Error]
Cause: The configuration transfer to the drive was not successful or interrupted.



Remedy:

  • Contact your local Schneider Electric representative.
CFI4

[Empty Configuration]
Cause: The selected configuration for the [Multimotors config] nnc – function has not been created previously.



Remedy:

  • Verify the configurations saved.

  • Switch to a compatible configuration.
CHF

[Cabinet Overheat Error]
Cause: The cabinet thermal switch is at active state, the cabinet fan(s) has been switched on but there is no fan feedback.

Digital inputs DI50 and DI51… configured as cabinet temperature monitoring… enclose thermo switch opens in case of over temperature.



Remedy:

  • Verify cabinet fan(s) and its wiring.

  • Verify the temperature in the enclosure is not too high.

  • Verify the setting of the thermoswitch (must be 60°C (140°F)).
CnF

[Fieldbus Com Interrupt]
Cause: Communication interruption on fieldbus module.

This error is triggered when the communication between the fieldbus module and the master (PLC) is interrupted.



Remedy:

  • Verify the environment (electromagnetic compatibility).

  • Verify the wiring.

  • Verify the timeout.

  • Replace the option module.

  • Contact your local Schneider Electric representative.
CoF

[CANopen Com Interrupt]
Cause: Communication interruption on the CANopen® fieldbus.



Remedy:

  • Verify the communication fieldbus.

  • Verify the timeout.

  • Refer to the CANopen® manual.
CoPF

[Cooling Pump Error]
Cause: Cooling pump is not working.



Remedy:

  • Contact your local Schneider Electric representative.
CrF1

[Precharge Capacitor]
Cause: Charging circuit control detected error or charging resistor damaged.

Supply mains too low.



Remedy:

  • Turn off the drive and then turn on again.

  • Verify the setting of [DC Bus Source Type] dCbS.

  • Verify the internal connections.

  • Verify the voltage and the parameters of [Undervoltage handling] usb.

  • Contact your local Schneider Electric representative.
CrF3

[AFE contactor fdbk error]
Cause: This error occurs in different conditions (on start / on stop / during operation).

This error is analysed inside each AFE brick independent from each other. If the AFE mains contactor feedback signal does not match with the internal AFE mains contactor command.



Remedy:

  • Verify the environment (electromagnetic compatibility) related to: Cable routing, Ground cabling, Ground Shielding.

  • Verify the cables connecting the drive to the motor.

  • Verify which AFE brick detected the error by connecting the Graphic Display Terminal.

  • Contact your local Schneider Electric representative.
CSF

[Channel Switch Error]
Cause: Switch to an invalid channel.



Remedy:

  • Verify the function parameters.
dLF

[Dynamic Load Error]
Cause: Load variation out of range.



Remedy:

  • Verify for a mechanical cause of load instability.
dCrE

[DC Bus Ripple Error]
Cause: Persistent ripple observed on the DC bus or DC bus capacitors damaged.



Remedy:

  • Turn off the drive and then turn on again.

  • Verify correct behavior of the input filter.

  • Verify the mains wirings.

  • Verify the internal connections.

  • Contact your local Schneider Electric representative.
ECF

[Encoder Coupling]
Cause: The mechanical coupling of the encoder is broken.

The detection is active when [Encoder Coupling Monit] ECC is set to Yes.

Speed feedback is 0 and the drive is in torque or current limitation.



Remedy:

  • Verify the mechanical coupling of the encoder.
EEF1

[EEPROM Control]
Cause: An error of the internal memory of the control block has been detected.


Remedy:

  • Verify the environment (electromagnetic compatibility).

  • Switch off the product.

  • Return to factory settings.

  • Contact your local Schneider Electric representative.
EEF2

[EEPROM Power]
Cause: An error of the internal memory of the power board has been detected.


Remedy:

  • Verify the environment (electromagnetic compatibility).

  • Switch off the product.

  • Return to factory settings.

  • Contact your local Schneider Electric representative.
EnF

[Encoder]
Cause: Encoder feedback error. The difference between the measured and estimated speed is greater than 4%.


Remedy:

  • Verify the configuration parameters for the encoder used.

  • Verify the mechanical and electrical operation of the encoder.

  • Verify the consistency between the encoder signals and the direction of rotation of the motor.

  • If necessary, reverse the direction of rotation of the motor ([Output Ph rotation] PHr parameter).

  • Verify the encoder module.

  • Verify the encoder type and supply voltage.
EPF1

[External Error]
Cause: Event triggered by an external device, depending on user; An external error has been triggered via Embedded Ethernet; The error is caused by an external circuit; Ethernet configuration file is corrupted.


Remedy:

  • Remove the cause of the external error.

  • Perform a factory setting of the Ethernet configuration or modify the IP Mode.
EPF2

[Fieldbus Error]
Cause: Event triggered by an external device, depending on user.


Remedy:

  • Remove the cause of the external error.
EtHF

[Embd Eth Com Interrupt]
Cause: Communication interruption on the Ethernet IP ModbusTCP bus.


Remedy:

  • Verify the communication bus.

  • Refer to the Ethernet manual.
FCF1

[Out Contact Closed Error]
Cause: The output contactor remains closed although the opening conditions have been met.


Remedy:

  • Verify the output contactor and its wiring.

  • Verify the contactor feedback wiring.
FCF2

[Out Contact Opened Error]
Cause: The output contactor remains opened although the closing conditions have been met.


Remedy:

  • Verify the output contactor and its wiring.

  • Verify the contactor feedback wiring.
Fdr1

[FDR 1 Error]
Cause: Embedded Ethernet FDR error; Communication interruption between the drive and the PLC; Configuration file incompatible, empty or invalid; Drive rating not consistent with the configuration file.


Remedy:

  • Verify the drive and PLC connection.

  • Verify the communication workload.

  • Restart the transfer of configuration file from drive to PLC.
Fdr2

[FDR 2 Error]
Cause: Ethernet fieldbus module FDR error; Communication interruption between the drive and the PLC; Configuration file incompatible, empty or corrupted; Drive rating not consistent with the configuration file.


Remedy:

  • Verify the drive and PLC connection.

  • Verify the communication workload.

  • Restart the transfer of configuration file from drive to PLC.
FFdF

[Fan Feedback Error]
Cause: Fan speed too low. [Fan Feedback Warning] warning has been active for a time longer than 10 minutes.


Remedy:

  • Replace the fan.
FWEr

[Firmware Update Error]
Cause: Firmware update function has detected an error.


Remedy:

  • Contact your local Schneider Electric representative.
HCF

[Boards Compatibility]
Cause: Hardware configuration error. The [Pairing password] parameter has been enabled and an option module has been changed.


Remedy:

  • Refit the original option module.

  • Confirm the configuration by entering the [Pairing password], if the module was changed deliberately.
IdLF

[Egy Saving Exit Error]
Cause: The drive is not turned on even though [Egy Saving Timeout] has elapsed.


Remedy:

  • Verify the Supply Mains/contactor/drive wiring.

  • Verify the timeout.
IFA

[MonitorCircuit A Error]
Cause: The digital input assigned to [MonitorCircuit A Assign] is active for longer than [MonitorCircuit A Delay].


Remedy:

  • Verify the connected device and its wiring.

  • Verify the [MonitorCircuit A Assign] parameter assignment.
IFb

[MonitorCircuit B Error]
Cause: The digital input assigned to [MonitorCircuit B Assign] is active for longer than [MonitorCircuit B Delay].


Remedy:

  • Verify the connected device and its wiring.

  • Verify the [MonitorCircuit B Assign] parameter assignment.
IFC

[MonitorCircuit C Error]
Cause: The digital input assigned to [MonitorCircuit C Assign] is active for longer than [MonitorCircuit C Delay].


Remedy:

  • Verify the connected device and its wiring.

  • Verify the [MonitorCircuit C Assign] parameter assignment.
IFd

[MonitorCircuit D Error]
Cause: The digital input assigned to [MonitorCircuit D Assign] is active for longer than [MonitorCircuit D Delay].


Remedy:

  • Verify the connected device and its wiring.

  • Verify the [MonitorCircuit D Assign] parameter assignment.
iHF

[Input Overheating]
Cause: The AFE brick temperature is too high.


Remedy:

  • Verify the drive ventilation and the ambient temperature. Wait for the drive to cool down before restarting.
ILF

[Internal Link Error]
Cause: Communication interruption between option module and the drive.


Remedy:

  • Verify the environment (electromagnetic compatibility).

  • Verify the connections.

  • Replace the option module.

  • Contact your local Schneider Electric representative.
InF0

[Internal Error 0]
Cause: Communication interruption between microprocessors of the control board; The power board rating is not valid.


Remedy:

  • Contact your local Schneider Electric representative.
InF1

[Internal Error 1]
Cause: The power board rating is not valid.


Remedy:

  • Contact your local Schneider Electric representative.
InF2

[Internal Error 2]
Cause: The power board is incompatible with the control block software.


Remedy:

  • Contact your local Schneider Electric representative.
InF3

[Internal Error 3]
Cause: Internal communication detected error.


Remedy:

  • Verify the wiring on drive control terminals (internal 10V supply for analog inputs overloaded).

  • Contact your local Schneider Electric representative.
InF4

[Internal Error 4]
Cause: Internal data inconsistent.


Remedy:

  • Contact your local Schneider Electric representative.
InF6

[Internal Error 6]
Cause: The option module installed in the drive is not recognized; The removable control terminal modules are not present or not recognized; The embedded Ethernet adapter is not recognized.


Remedy:

  • Verify the catalog number and compatibility of the option module.

  • Plug the removable control terminal modules after the drive has been switched off.

  • Contact your local Schneider Electric representative.
InF7

[Internal Error 7]
Cause: Communication interruption with CPLD component of Control board.


Remedy:

  • Contact your local Schneider Electric representative.
InF8

[Internal Error 8]
Cause: The internal power switching supply is not correct.


Remedy:

  • Contact your local Schneider Electric representative.
InF9

[Internal Error 9]
Cause: An error on the current circuit measurement has been detected.


Remedy:

  • Contact your local Schneider Electric representative.
InFA

[Internal Error 10]
Cause: The input stage is not operating correctly.


Remedy:

  • Contact your local Schneider Electric representative.
InFb

[Internal Error 11]
Cause: The internal drive thermal sensor is not operating correctly.


Remedy:

  • Contact your local Schneider Electric representative.
InFC

[Internal Error 12]
Cause: Internal current supply error.


Remedy:

  • Contact your local Schneider Electric representative.
InFd

[Internal Error 13]
Cause: Differential current deviation.


Remedy:

  • Verify connection of DigiLink cable (GG45).

  • Contact your local Schneider Electric representative.
InFE

[Internal Error 14]
Cause: Internal microprocessor detected error.


Remedy:

  • Verify that the error code can be cleared.

  • Contact your local Schneider Electric representative.
InFF

[Internal Error 15]
Cause: Serial memory flash format error.


Remedy:

  • Contact your local Schneider Electric representative.
InFG

[Internal Error 16]
Cause: Communication interruption or internal error of output relays option module.


Remedy:

  • Verify that the option module is correctly connected to the slot.

  • Replace the option module.

  • Contact your local Schneider Electric representative.
InFH

[Internal Error 17]
Cause: Communication interruption with the Extension module of digital & analog I/O or internal error of the Extension module of digital & analog I/O.


Remedy:

  • Verify that the option module is correctly connected to the slot.

  • Replace the option module.

  • Contact your local Schneider Electric representative.
InFi

[Internal Error 18]
Cause: Safety Module Internal Error; Communication interruption with Safety function module; Internal error of the Safety function module.


Remedy:

  • Verify the Safety Module errors for additional information.

  • Verify that the option module is correctly inserted into the slot.

  • Replace the option module.

  • Contact your local Schneider Electric representative.
InFJ

[Internal Error 19]
Cause: An error on the encoder module has been detected.


Remedy:

  • Verify if the encoder option module is connected correctly to the slot.

  • Verify the compatibility of the encoder.

  • Contact your local Schneider Electric representative.
InFk
[Internal Error 20]
Cause:

Option module interface board error.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFl
[Internal Error 21]
Cause:

Internal Real Time Clock error. It could be a communication error between the keypad and the drive or a clock oscillator start error.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFM
[Internal Error 22]
Cause:

An error on the embedded Ethernet adapter has been detected.



Remedy:

  • Verify the connection to the Ethernet port.

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFn
[Internal Error 23]
Cause:

A communication interruption between the control block and AFE or BU bricks has been detected.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFP
[Internal Error 25]
Cause:

Incompatibility between Control Board hardware version and firmware version.



Remedy:

  • Update the firmware package.

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFr
[Internal Error 27]
Cause:

Diagnostics in CPLD have detected an error.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFS
[Internal Error 28]
Cause:

An error on the AFE brick has been detected.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFt
[Internal Error 29]
Cause:

An error on the power unit / inverter brick has been detected.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFu
[Internal Error 30]
Cause:

An error on the rectifier brick has been detected or an [Input phase loss] PHF error has been triggered when the DC bus is charged.



Remedy:

  • Turn off the drive and then turn on again.

  • If [Input phase loss] PHF error code replaces [Internal Error 30] InFu, refer to the instructions of [Input phase loss] PHF error otherwise contact your local Schneider Electric representative.

  • This detected error requires a power reset.
InFV
[Internal Error 31]
Cause:

An error on the brick architecture has been detected (brick unavailable).



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error can be cleared with the [Auto Fault Reset] or manually with the [Fault Reset Assign] parameter.
InFw
[Internal Error 32]
Cause:

Firmware update function has detected an error.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
LCF
[Input Contactor]
Cause:

The drive is not switched on even though [Mains V. time out] LCt timeout has elapsed.



Remedy:

  • Verify the input contactor and its wiring.

  • Verify the [Mains V. time out] LCt timeout.

  • Verify the supply mains/contactor/drive wiring.
LFF1
[AI1 4-20mA loss]
Cause:

Loss of the 4-20 mA on analog input AI1. This error is triggered when the measured current is below 2 mA.



Remedy:

  • Verify the connection on the analog inputs.

  • Verify the setting of [AI1 4-20mA loss] LFL1 parameter.
LFF3
[AI3 4-20mA loss]
Cause:

Loss of the 4-20 mA on analog input AI3. This error is triggered when the measured current is below 2 mA.



Remedy:

  • Verify the connection on the analog inputs.

  • Verify the setting of [AI3 4-20mA loss] LFL3 parameter.
LFF4
[AI4 4-20mA loss]
Cause:

Loss of the 4-20 mA on analog input AI4. This error is triggered when the measured current is below 2 mA.



Remedy:

  • Verify the connection on the analog inputs.

  • Verify the setting of [AI4 4-20mA loss] LFL4 parameter.
LFF5
[AI5 4-20mA loss]
Cause:

Loss of the 4-20 mA on analog input AI5. This error is triggered when the measured current is below 2 mA.



Remedy:

  • Verify the connection on the analog inputs.

  • Verify the setting of [AI5 4-20mA loss] LFL5 parameter.
LKon
[ON Lock Error]
Cause:

External device not ready.



Remedy:

  • Verify external device assigned to ON lock input.
MdCF
[Load Mvt Error]
Cause:

Load movement for which no command has been given.



Remedy:

  • Verify the brake command circuit. Verify the brake.

  • This detected error requires a power reset.
MdF
[AFE Bus Ref Error]
Cause:

Communication interruption or disturbance of the DC bus reference link between the Supply Unit AFE and the drives during operation.

If the DC bus reference is shared using PTI/PTO, the error is triggered if the PTI signal is less than 10 kHz.

If the DC bus reference is shared using Modbus Serial line, the error is triggered if the drive does not receive a new value within the [Modbus Timeout] tto value.



Remedy:

  • If DC bus reference is shared using PTI/PTO:

    • Verify the values of PTI and PTO signals.

    • Verify PTI parameters configuration on drive side.

    • Verify PTO parameters configuration on Supply Unit AFE side.

    • Verify that only 4 drives maximum are connected on PTO signal (PTO max current is 20 mA and PTI consumption is 5 mA).



  • If DC bus reference is shared using Modbus Serial:

    • Verify the Modbus serial communication line.
MdLF
[MultiDrive Link Error]
Cause:

The communication has been interrupted while running.

The function has detected an inconsistency in the system configuration.



Remedy:

  • Check the communication network.

  • Check the configuration of the multi-drive link function.
MFF
[Mains Freq Out Of Range]
Cause:

[Mains Frequency] FRC on the AFE brick is out of range.



Remedy:

  • Verify the mains frequency.
MOF
[Module Overheat]
Cause:

Cabinet temperature too high.

[Module Overheat] MOA warning has been active for a time longer than 10 minutes.



Remedy:

  • Verify the cooling of the cabinet.
MSdF
[M/S Device Error]
Cause:

For a master, one or more slaves are not present or not ready.

For a slave, the master is not present.



Remedy:

  • Verify the drive status.

  • Verify the settings of the master/slave architecture.
ObF
[DC Bus Overvoltage]
Cause:

Deceleration time too short or driving load too high.

Supply mains voltage too high.



Remedy:

  • Increase the deceleration time.

  • Configure the [Dec ramp adapt.] brA function if it is compatible with the application.

  • Verify the supply mains voltage.
ObF2
[AFE Bus unbalancing]
Cause:

AFE DC bus unbalancing.

Supply mains voltage too high.

Total generative power too high.



Remedy:

  • Verify the supply mains voltage.

  • Contact your local Schneider Electric representative.
OCF
[Overcurrent]
Cause:

Parameters in the [Motor data] nOA – menu are not correct.

Inertia or load too high.

Mechanical locking.



Remedy:

  • Verify the motor parameters.

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

  • Verify the state of the mechanism.

  • Decrease [Current limitation] CLI.

  • Increase the switching frequency.

  • This detected error requires a power reset.
OHF
[Drive Overheating]
Cause:

Drive temperature too high.



Remedy:

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

  • Wait for the drive to cool down before restarting.
OLC
[Process Overload]
Cause:

Process overload.



Remedy:

  • Verify and remove the cause of the overload.

  • Verify the parameters of the [Process overload] oLd function.
OLF
[Motor Overload]
Cause:

Triggered by excessive motor current.



Remedy:

  • Verify the setting of the motor thermal monitoring.

  • Verify the motor load. Wait for the motor to cool down before restarting.

  • Verify the setting of the following parameters: [Motor Th Current], [Motor Thermal Mode], [Motor Therm Thd], [MotorTemp ErrorResp].
OPF1
[Single Output Phase Loss]
Cause:

Loss of one phase at drive output.



Remedy:

  • Verify the wiring from the drive to the motor.
OPF2
[Output Phase Loss]
Cause:

Motor not connected or motor power too low.

Output contactor opened.

Instantaneous instability in the motor current.



Remedy:

  • Verify the wiring from the drive to the motor.

  • If an output contactor is being used, set [OutPhaseLoss Assign] OPL to [No Error Triggered] OAC.

  • If the drive is connected to a low-power motor or not connected to a motor, deactivate motor phase loss detection.

  • Verify and optimize parameters: [IR compensation] UFr, [Nom Motor Voltage] unS and [Rated mot. current] nCr and perform [Autotuning] tUn.
OSF
[Supply Mains Overvoltage]
Cause:

Supply mains voltage too high.

Disturbed supply mains.



Remedy:

  • Verify the supply mains voltage.
P24C
[Cab I/O 24V Error]
Cause:

The input DI58 is used to monitor the 24V on input terminal. If it breaks down, all inputs are suppressed to avoid unintended error messages.

DI58 cabinet I/O input is not wired to the internal terminal X231.

DI58 is used by another cabinet I/O function.



Remedy:

  • Verify if the terminal X231 is wired to the cabinet I/O input DI58.

  • If the DI58 is used by another cabinet function, it is needed to change the function to another free cabinet I/O input on the X220 terminals.
PCPF
[PumpCycle Start Error]
Cause:

The Pumpcycle monitoring function has exceeded the maximum number of start sequences allowed in the time window.



Remedy:

  • Search for a possible cause of repetitive start of system.

  • Verify the settings of the monitoring function.
PFMF
[PID Feedback Error]
Cause:

The PID feedback error was out of the allowed range around the set point during the time window.



Remedy:

  • Check for mechanical breakdown of pipes.

  • Check for water leakage.

  • Check for open discharge valve.

  • Check for fire hydrant opened.

  • Verify the settings of the monitoring function.
PGLF
[Program Loading Error]
Cause:

Verify that the error code can be cleared.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error is cleared as soon as its cause has been removed.
PGrF
Program Running Error
Cause: Verify that the error code can be cleared.



Remedy:

  • Contact your local Schneider Electric representative.

  • This detected error requires a power reset.
PHF
Input phase loss
Cause:
Drive incorrectly supplied or a tripped fuse.

One phase is unavailable.

3-phase Drive used on a single-phase supply mains.

Unbalanced load.



Remedy:

  • Verify the power connection and the fuses.

  • Use a 3-phase supply mains.

  • Disable the detected error by [Input phase loss] IPL = [No] nO if single phase supply mains or DC bus supply is used.
RAdF
Rotation Angle Monit
Cause: The monitoring of the rotation angle has detected a too high deviation.



Remedy:

  • Check for mechanical problems in the system.

  • Verify the settings of the monitoring function.
SAFF
Safety Function Error
Cause:
Debounce time exceeded.

Internal hardware error.

STOA and STOB have a different status (high/low) for more than 1 second.



Remedy:

  • Verify the wiring of the digital inputs STOA and STOB.

  • Contact your local Schneider Electric representative.
SAVF
Safety Violation
Cause:
Safety Module Violation Error.

Safety Module has detected a violation of defined limits.



Remedy:

  • Verify the Safety Module errors for additional information.

  • Contact your local Schneider Electric representative.
SCF1
Motor short circuit
Cause: Short-circuit or grounding at the drive output.



Remedy:

  • Verify the cables connecting the drive to the motor, and the motor insulation.

  • Adjust the switching frequency.

  • Connect chokes in series with the motor.

  • Verify the adjustment of speed loop and brake.

  • Increase the [Time to restart] ttr.
SCF3
Ground Short Circuit
Cause: Significant ground leakage current at the drive output if several motors are connected in parallel.



Remedy:

  • Verify the cables connecting the drive to the motor, and the motor insulation.

  • Adjust the switching frequency.

  • Connect chokes in series with the motor.

  • If you have long cables, verify the setting of [Ground Fault Activation] GrFL.
SCF4
IGBT Short Circuit
Cause: Power component detected error. At product power-on, the IGBTs are tested for short circuit. The time to check each transistor is between 1 and 10 μs.



Remedy:

  • Verify the setting of [Output Short Circuit Test] Strt parameter.

  • Contact your local Schneider Electric representative.
SCF5
Motor Short Circuit
Cause: Short-circuit at drive output.



Remedy:

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

  • Contact your local Schneider Electric representative.
SCF6
AFE ShortCircuit error
Cause: AFE rectifier IGBT short-circuit. AFE over current due to power factor correction systems in the grid.



Remedy:

  • Verify the mains voltage when the power factor correction system is changing the capacitive load. Install only power factor correction systems with integrated reactors.

  • Verify the cables connecting the AFE brick to the mains.

  • Contact your local Schneider Electric representative.
SCFF
Safety Config Error
Cause:
Safety Module Configuration Error.

Incorrect configuration linked to the Safety Module has been detected.



Remedy:

  • Verify the Safety Module errors for additional information.

  • Contact your local Schneider Electric representative.
SIOF
Safety IO Error
Cause:
Safety Module IO Error.

Error on input / output of the Safety Module.

Error on encoder signal.



Remedy:

  • Verify the Safety Module errors for additional information.

  • Contact your local Schneider Electric representative.
SLF1
Modbus Com Interruption
Cause: Communication interruption on the Modbus port.



Remedy:

  • Verify the communication bus.

  • Verify the timeout.

  • Refer to the Modbus user manual.
SLF2
PC Com Interruption
Cause: Communication interruption with the commissioning software.



Remedy:

  • Verify the commissioning software connecting cable.

  • Verify the timeout.
SLF3
HMI Com Interruption
Cause: Communication interruption with the Graphic display terminal.



Remedy:

  • Verify the Graphic display terminal connection.

  • Verify the timeout.
SoF
Motor Overspeed
Cause:
Instability or driving load too high.

If a downstream contactor is used, the contacts between the motor and the drive have not been closed before applying a Run command.

The overspeed threshold (corresponding to 110 % of [Max frequency] tFr) has been reached.



Remedy:

  • Verify the motor parameter settings.

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

  • Verify and close the contacts between the motor and the drive before applying a Run command.

  • Verify the consistency between [Max frequency] tFr and [High Speed] HSP.
SPF
Encoder Feedback Loss
Cause:
The measured speed is lower than 2 % of [Nominal Motor Freq] FrS.

EMC perturbations on the network.

No input signal or top Z signal after two rotation has been done.

Encoder feedback signal missing.



Remedy:

  • Verify the error code value [Encoder Fdbck Error] EnCE.

  • Verify the wiring between the encoder and the drive.

  • Verify the encoder settings.

  • Use a shielded cable and ground both ends.

  • Verify the encoder power supply. Reduce [Encoder Supply Voltage] uECV value.
SPFC
Security Files Corrupt
Cause: Security files corrupted or missing.



Remedy:

  • Switch off the product. At next switch-on, the security file will be created again, and the information related to cybersecurity are set back to the default value.
SrF
Torque timeout
Cause: The torque control function is not able to regulate the torque within the configured dead band. The drive has switched to speed control for longer than [Torque ctrl time out] rto.



Remedy:

  • Verify the settings of the [Torque control] tor – function.

  • Verify that there are no mechanical constraints.
SSF
Torque Limitation Error
Cause: The drive was in torque limitation or current limitation state during [Trq/I Limit Timeout] Sto.



Remedy:

  • Verify the settings of the [Torque limitation] toL – function.

  • Verify that there are no mechanical constraints.
StF
Motor Stall Error
Cause: The stall monitoring function has detected an error (output frequency smaller than stalling frequency, current higher than stalling current, duration longer than stalling time).



Remedy:

  • Search for a mechanical blocking of the motor.

  • Search for a possible cause of motor overload.

  • Verify the settings of the monitoring function.
t1CF
AI1 Thermal Sensor Error
Cause: The thermal monitoring function has detected an error of the thermal sensor connected to the analog input AI1 (Open circuit or Short circuit).



Remedy:

  • Verify the sensor and its wiring.

  • Replace the sensor.
t3CF
AI3 Thermal Sensor Error
Cause: The thermal monitoring function has detected an error of the thermal sensor connected to the analog input AI3 (Open circuit or Short circuit).



Remedy:

  • Verify the sensor and its wiring.

  • Replace the sensor.

  • Verify the setting of [AI3 Type] AI3t parameter.
t4CF
AI4 Thermal Sensor Error
Cause: The thermal monitoring function has detected an error of the thermal sensor connected to the analog input AI4 (Open circuit or Short circuit).



Remedy:

  • Verify the sensor and its wiring.

  • Replace the sensor.

  • Verify the setting of [AI4 Type] AI4t parameter.
t5CF
AI5 Thermal Sensor Error
Cause: The thermal monitoring function has detected an error of the thermal sensor connected to the analog input AI5 (Open circuit or Short circuit).



Remedy:

  • Verify the sensor and its wiring.

  • Replace the sensor.

  • Verify the setting of [AI5 Type] AI5t parameter.
tECF
Encoder Th Sensor Error
Cause: The thermal sensor monitoring function has detected a thermal sensor on the encoder module analog input (Open circuit or Short circuit).



Remedy:

  • Verify the sensor and its wiring.

  • Replace the sensor.
tFA
MotorWinding A Error
Cause: The digital input assigned to [MotorWinding A Assign] tFAA is active for longer than [MotorWinding A Delay] tFdA.



Remedy:

  • Verify the connected device (motor winding thermal switch) and its wiring.

  • Verify the motor load and the ambient temperature. Wait for the motor to cool down before restarting.
tFb
MotorWinding B Error
Cause: The digital input assigned to [MotorWinding B Assign] tFAb is active for longer than [MotorWinding B Delay] tFdb.



Remedy:

  • Verify the connected device (motor winding thermal switch) and its wiring.

  • Verify the motor load and the ambient temperature. Wait for the motor to cool down before restarting.
tFC
MotorBearing A Error
Cause: The digital input assigned to [MotorBearing A Assign] tFAC is active for longer than [MotorBearing A Delay] tFdC.



Remedy:

  • Verify the connected device (motor winding thermal switch) and its wiring.

  • Verify the motor load and the ambient temperature. Wait for the motor to cool down before restarting.
tFd
MotorBearing B Error
Cause: The digital input assigned to [MotorBearing B Assign] tFAd is active for longer than [MotorBearing B Delay] tFdd.



Remedy:

  • Verify the connected device (motor winding thermal switch) and its wiring.

  • Verify the motor load and the ambient temperature. Wait for the motor to cool down before restarting.

tH1F



[AI1 Th Level Error]

Cause: The thermal sensor monitoring function has detected a high temperature on analog input AI1.



Remedy:



  • Search for a possible cause of overheating.

  • Verify the settings of the monitoring function.

tH3F



[AI3 Th Level Error]

Cause: The thermal sensor monitoring function has detected a high temperature on analog input AI3.



Remedy:



  • Search for a possible cause of overheating.

  • Verify the settings of the monitoring function.

tH4F



[AI4 Th Level Error]

Cause: The thermal sensor monitoring function has detected a high temperature on analog input AI4.



Remedy:



  • Search for a possible cause of overheating.

  • Verify the settings of the monitoring function.

tH5F



[AI5 Th Level Error]

Cause: The thermal sensor monitoring function has detected a high temperature on analog input AI5.



Remedy:



  • Search for a possible cause of overheating.

  • Verify the settings of the monitoring function.

tHEF



[Encoder Th Detected Error]

Cause: The thermal sensor monitoring function has detected a high temperature on encoder module analog input.



Remedy:



  • Search for a possible cause of overheating.

  • Verify the settings of the monitoring function.

tJF



[IGBT Overheating]

Cause: Drive power stage overheating.



Remedy:



  • Verify the size of the load/motor/drive according to environment conditions.

  • Reduce the switching frequency.

  • Increase the ramp time.

  • Decrease the current limitation.

tJF2



[AFE IGBT over-heat error]

Cause: Rectifier IGBT power stage overheating.



Remedy:



  • Verify the size of the load/motor/drive according to environment conditions.

  • Verify and clean, if necessary, the cooling channel.

  • Clean or replace the filter mats on IP54 products.

tLOF



[Drive Overload]

Cause: The [Drive overload monit] Obr function has detected an error.



Remedy:



  • Verify the size of the load/motor/drive according to environment conditions.

  • Verify the settings of the [Drive Overload Monit] tLoL parameter.

tnF



[Autotuning Error]

Cause:

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

  • Motor not connected to the drive.

  • Motor not stopped.




Remedy:



  • Verify that the motor/drive are compatible.

  • Verify that the motor is connected to the drive during autotuning.

  • If an output contactor is being used, verify that it is closed during autotuning.

  • Verify that the motor is present and stopped during autotuning.

  • In case of reluctance motor, reduce [PSI Align Curr Max] MCr.

uLF



[Process Underload]

Cause: Process underload.



Remedy:



  • Verify and remove the cause of the underload.

  • Verify the parameters of the [Process underload] uLd function.

urF



[AFE Mains Undervoltage]

Cause:

  • Too low DC-Bus voltage due to mains undervoltage.

  • AFE overload.




Remedy:



  • Verify mains voltage.

  • Verify the size of the load/motor/drive according to environment conditions.

uSF



[Supply Mains UnderV]

Cause:

  • Supply mains too low.

  • Transient voltage dips.




Remedy:


Verify the voltage and the parameters of [Undervoltage handling] uSb.