telemecanique vfd fault code 3

Drive does not start, no fault displayed
• If the display does not light up, check the power supply to the drive.
• The assignment of the "Fast stop" or "Freewheel" functions will prevent the drive starting if the corresponding logic inputs are not powered up. The Altivar vfd then displays [Freewheel] (nSt) in freewheel stop and [Fast stop] (FSt) in fast stop.

This is normal since these functions are active at zero so that the drive will be stopped safely if there is a wire break.
• Make sure that the run command input or inputs are activated in accordance with the selected control mode ([2/3 wire control] (tCC) and [2 wire type] (tCt) parameters,)

• If an input is assigned to the limit switch function and this input is at zero, the drive can only be started up by sending a command for the opposite direction.

• If the reference channel or command channel is assigned to a communication bus, when the power supply is connected, the drive will display [Freewheel] (nSt) and remain in stop mode until the communication bus sends a command.

Faults, which cannot be reset automatically
The cause of the fault must be removed before resetting by turning off and then back on.
AnF, brF, ECF, EnF, SOF, SPF and tnF faults can also be reset remotely by means of a logic input or control bit ([Fault reset] (rSF) parameter).
AnF, EnF, InFA, InFb, SOF, SPF, and tnF faults can be inhibited and cleared remotely by means of a logic input or control bit ([Fault inhibit assign.] (InH) parameter).

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Drive state codes:
The display flashes when a value is stored.
Normal display, with no fault present and no startup:
- ACC: Acceleration
- CLI: Current limit
- CTL: Controlled stop on input phase loss
- DCB: DC injection braking in progress
- DEC: Deceleration
- FLU: Motor fluxing in progress
- FST: Fast stop
- NLP: No line power (no line supply on L1, L2, L3)
- NST: Freewheel stop
- OBR: Auto-adapted deceleration
- PRA: Power Removal function active (drive locked)
- RDY: Drive ready
- RUN: Drive running
- SOC: Controlled output cut in progress
- TUN: Auto-tuning in progress
- USA: Undervoltage alarm

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OtF1 [PTC1 overheat]
• Overheating of the PTC1 probes detected
• 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

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OtF2 [PTC2 overheat]
• Overheating of the PTC2 probes detected
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OtFL [LI6=PTC overheat]
• Overheating of PTC probes detected on input LI6
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PtF1 [PTC1 probe]
• PTC1 probes open or shortcircuited
• Check the PTC probes and the wiring between them and the motor/drive
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PtF2 [PTC2 probe]
• PTC2 probes open or shortcircuited
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PtFL [LI6=PTC probe]
• PTC probes on input LI6 open or short-circuited
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SCF4 [IGBT short circuit]
• Power component fault
• Perform a test via the [1.10 DIAGNOSTICS] menu.
• Inspect/repair the IGBT Compenet drive
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SCF5 [Motor short circuit]
• Short-circuit at drive output
• 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
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SLF1 [Modbus com.]
• Interruption in communication on the Modbus bus
• Check the communication bus.
• Check the time-out
• Refer to the Modbus User's Manual
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SLF2 [PC com.]
• Fault communicating with PCSoftware
• Check the PC-Software connecting cable.
• Check the time-out
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SLF3 [HMI com.]
• Fault communicating with the graphic display terminal
• Check the terminal connection
• Check the time-out
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SrF [TORQUE TIME OUT FLT]
• The time-out of the torque control function is attained
• Check the function’s settings
• Check the state of the mechanism
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SSF [Torque/current lim]
• Switch to torque limitation
• Check if there are any mechanical problems
• Check the parameters of [TORQUE LIMITATION] (tLA-) the parameters of the [TORQUE OR I LIM. DETECT.] (tId-) fault).
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tJF [IGBT overheat]

• Drive overheated

• Check the size of the load/motor/drive.
• Reduce the switching frequency.
• Wait for the motor to cool before restarting
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Option card changed or removed
When an option card is removed or replaced by another, the drive locks in [Incorrect config.] (CFF) fault mode on power-up. If the card has been deliberately changed or removed, the fault can be cleared by pressing the ENT key twice, which causes the factory settings to be restored for the parameter groups affected by the card. These are as follows:
Card replaced by a card of the same type
• I/O cards: [Drive configuration] (drM)
• Encoder cards: [Drive configuration] (drM)
• Communication cards: only the parameters that are specific to communication cards
• Controller Inside cards: [Prog. card menu] (PLC)
• Card removed (or replaced by a different type of card)
• I/O card: [Drive configuration] (drM)
• Encoder card: [Drive configuration] (drM)
• Communication card: [Drive configuration] (drM) and parameters specific to communication cards
• Controller Inside card: [Drive configuration] (drM) and [Prog. card menu] (PLC)
• Control card changed

When a control card is replaced by a control card configured on a drive with a different rating, the drive locks in [Incorrect config.] (CFF) fault mode on power-up. If the card has been deliberately changed, the fault can be cleared by pressing the ENT key twice, which causes all the factory settings to be restored.
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CFF [Incorrect config.]

• Option card changed or removed
• Control card replaced by a control card configured on a drive with a different rating
• The current configuration is inconsistent
• Check that there are no card errors.
• In the event of the option card being changed/removed deliberately, see the remarks below
• Check that there are no card errors.
• In the event of the control card being changed deliberately, see the remarks below
• Return to factory settings or retrieve the backup configuration, if it is valid.
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CFI [Invalid config.]
• Invalid configuration
The configuration loaded in the drive via the bus or communication network is inconsistent.
• [Max frequency] (tFr) has been set at a value higher than 599Hz
• Check the configuration loaded previously.
• Load a compatible configuration
• Set [Max frequency] (tFr) at a value lower or equal to 599 Hz
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dLF [Dynamic load fault]
• Abnormal load variation
• Check that the load is not blocked by an obstacle
• Removal of a run command causes a reset
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HCF [Cards pairing]
• The [CARDS PAIRING] (PPI-) function, has been configured and a drive card has been changed
• 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
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PHF [Input phase loss]
• Drive incorrectly supplied or a fuse blown
• Failure of one phase
• 3-phase Altivar vfd used on a singlephase line supply
• Unbalanced load
This protection only operates with the drive on load
• Check the power connection and the fuses.
• Use a 3-phase line supply.
• Disable the fault by[Input phase loss] (IPL) = [No] (nO).
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USF [Undervoltage]
• Line supply too low
• Transient voltage dip
• This protection only operates with the drive running in motor mode
• Check the voltage and the parameters of [UNDERVOLTAGE MGT] (USb-).