Inovance MD520 Drive

Inovance MD520 Drive Fault Codes:

Fault Code and MeaningCause and Remedy
E002.1
Hardware overcurrent

Cause: The instantaneous output current exceeds 2.5*1.414 times the rated current.



Remedy: Connect to mobile App via Wi-Fi for self-diagnosis.



Cause: Output grounding.



Remedy: Check for output ground points and measure the ground impedance by segment using a megohmmeter.



Cause: Inter-phase short-circuit.



Remedy:

  • Check whether the output side is short circuited.

  • Check whether the power cable is short circuited.

  • Check whether motor resistance is symmetrical.





Cause: No parameter auto-tuning in vector control mode.



Remedy: Set motor parameters correctly and perform auto-tuning again.



Cause: Encoder interference or wire breakage.



Remedy:

  • Check if encoder cable is connected securely.

  • Check if encoder cable is grounded at the AC drive side.

  • Ground the motor enclosure.

  • Replace the encoder and the encoder cable.





Cause: Output phase loss.



Remedy:

  • Check if cables are properly connected.

  • Check contactor opening logic and contacts if present at output.





Cause: Current detection exception.



Remedy: Contact after-sales service.



Cause: V/f control acceleration/deceleration time too short.



Remedy:

  • Enable the overcurrent suppression function.

  • Increase the acceleration/deceleration time.





Cause: Encoder phase sequence error.



Remedy: If encoder direction and motor running direction are opposite, change the encoder direction.



Cause: Model setting error.



Remedy: Set the AC drive model correctly (FF-01).
E002.2
Software overcurrent

Cause: Software overcurrent threshold (FF-18) triggered. Default is 100% (indicating threshold does not take effect).



Remedy: Refer to remedies for E002.1 (Hardware overcurrent) as causes are identical.


Cause: Output grounding.



Remedy: Check for output short-to-ground and measure ground impedance.


Cause: Inter-phase short-circuit.



Remedy: Check output side, power cable, and motor resistance symmetry.


Cause: No parameter auto-tuning in vector control mode.



Remedy: Set motor parameters correctly and perform auto-tuning.


Cause: Encoder interference, wire breakage, or phase sequence error.



Remedy: Check connections, grounding, or change encoder direction.


Cause: V/f control accel/decel time too short.



Remedy: Enable overcurrent suppression; Increase accel/decel time.
E005.1
Bus overvoltage

Cause: Output grounding.



Remedy: Check output side/power cable for shorts; check motor resistance symmetry.



Cause: Encoder interference/wire breakage.



Remedy: Check connections, grounding, or replace encoder/cable.



Cause: Power generation during motor deceleration.



Remedy:

  • Enable overvoltage suppression if there is no active load.

  • Connect a braking resistor if possible.

  • Set F3-19 (V/f) or AB-25 bit1 (Vector) settings.





Cause: Fault reaction upon runaway of synchronous motor.



Remedy: Shorten overspeed protection time (F9-67 and F9-68).



Cause: Braking resistor selection error.



Remedy: Ensure braking module power is sufficient (Continuous load 0.8x motor power, Short-term 1.5x).



Cause: Braking resistor phase loss.



Remedy: Check that the braking resistor is properly connected.



Cause: Overshoot upon speed reach in vector control mode.



Remedy: Configure RFG with rounding time and acceleration feedforward.



Cause: V/f oscillation.



Remedy: Enable oscillation suppression function and optimize the coefficient.



Cause: AC drive model setting error.



Remedy: Set the AC drive model correctly.
E008.1
Frequent pre-charge
Cause: Pre-charge circuit exception (action of the pre-charge contactor can be heard frequently).



Remedy: Contact after-sales service (frequent pre-charge can cause overload of the circuit).
E009.1
Undervoltage

Cause: Instantaneous power failure.



Remedy: Enable overvoltage suppression if no active load. Set F9-59 (V/f) or AB-25 bit0 (Vector).



Cause: AC drive input voltage out of range.



Remedy: Adjust the input voltage to the normal range.



Cause: Input phase loss and large output power.



Remedy: Make sure the input grid is normal.



Cause: High undervoltage threshold.



Remedy: Lower the undervoltage threshold as appropriate.



Cause: AC drive model setting error.



Remedy: Set the AC drive model correctly.



Cause: Rectifier bridge, pre-charge resistor, drive board, or control board exception.



Remedy: Contact the technical support personnel.
E009.3
Pre-charge fault
Cause: Failure to power on the bus long after the motor is started in the state of undervoltage.



Remedy: Start the motor after the bus becomes stable after power-on.
E010.1
AC drive overload

Cause: Excessive load or locked-rotor.



Remedy: Reduce the load and check the motor and mechanical conditions.



Cause: High carrier frequency.



Remedy: Decrease the carrier frequency.



Cause: Low bus voltage during high speed running with heavy load.



Remedy:

  • Increase the input voltage of the grid.

  • Enable the overmodulation function.





Cause: Derating at low frequency due to long-term running below 5 Hz.



Remedy: Avoid running motor with heavy load at low speed for long time, or select higher power AC drive.



Cause: Output grounding or Output phase loss.



Remedy: Check for output ground points and output phase loss.



Cause: Motor parameter error.



Remedy: Check nameplate parameters and perform auto-tuning correctly.



Cause: Flying start not applied when the motor is started during rotation.



Remedy: Enable flying start by setting F6-00.



Cause: Encoder direction error.



Remedy: Change the A/B phase sequence of the encoder (F1-30).



Cause: Inadequate power rating of the AC drive.



Remedy: Replace the AC drive with one of higher power rating.
E010.3
AC drive pre-overload
Cause: AC drive overload ratio reaching 80%.



Remedy:

  • Same countermeasures as E010.1 (see above).

  • Change the pre-overload response level by setting parameters in group H1 (pre-overload is not reported by default).
E011.1

Motor overload
Cause:

Inappropriate F9-01 (motor overload protection) setting; Inadequate power rating of the motor; Brake error; Excessive load or locked-rotor.



Remedy:


  • Set F9-01 correctly.

  • Select an appropriate motor.

  • Check that the brake can be opened properly.

  • Reduce the load and check the motor and mechanical conditions.
E011.2

Motor pre-overload
Cause:

Motor overload ratio reaching the value of F9-02.



Remedy:


  • Same as E011.1.

  • Change the motor pre-overload coefficient (F9-02).

  • Change the exception response level by setting parameters in group H1 because motor pre-overload is not reported by default.
E012.1

Input phase loss
Cause:

Three-phase input power input phase loss; Three-phase grid imbalance; Drive board, surge protector, main control board, or rectifier bridge exception.



Remedy:


  • Check that the power input is normal.

  • Make sure the input grid is symmetrical (unbalanced grid causes bus voltage fluctuation).

  • Contact the technical support personnel.
E013.1

Output phase loss
Cause:

Motor phase loss.



Remedy:

Check whether open circuit occurs on the motor.
E013.2

Output phase loss (Cable)
Cause:

Exception of the cable connecting the AC drive and the motor.



Remedy:

Check that the wiring is secure.
E013.3

Output phase loss (Unbalance)
Cause:

Unbalanced three-phase output of the AC drive during motor running.



Remedy:

Check whether the motor three-phase winding is normal. If not, eliminate the fault.
E013.4

Output phase loss (Hardware)
Cause:

Drive board or IGBT exception.



Remedy:

Contact the technical support personnel.
E014.1

IGBT overheat
Cause:

Over-high ambient temperature; Air filter blocked; Fan damage; IGBT thermistor damage; IGBT damage.



Remedy:


  • Reduce the ambient temperature.

  • Clean the air filter.

  • Replace the fan.

  • Replace the thermistor.

  • Replace the IGBT.
E014.2

Module pre-overtemperature
Cause:

Module temperature exceeding the pre-overtemperature threshold.



Remedy:


  • Same as E014.1.

  • Change the exception response level by setting parameters in group H1 because module pre-overtemperature is not reported by default.
E015.1

External device fault (NO)
Cause:

External fault input through the multi-function DI (NO).



Remedy:

Eliminate the external fault, ensure that the mechanical condition allows restart (F8-18), and reset the operation.
E015.2

External device fault (NC)
Cause:

External fault input through the multi-functional DI (NC).



Remedy:

Eliminate the external fault, ensure that the mechanical condition allows restart (F8-18), and reset the operation.
E017.1

Contactor fault
Cause:

Drive board and power supply exception; Contactor exception; Surge protector exception.



Remedy:


  • Replace the drive board or power supply board.

  • Replace the contactor.

  • Replace the surge protector.
E018.1

Current detection fault
Cause:

Hall component exception; AC drive stopped while synchronous motor is rotating at high speed; Drive board exception.



Remedy:


  • Replace the hall component.

  • Disable zero drift detection by setting bit07 of BF-07.

  • Replace the drive board.
E019.1

Auto-tuning timeout
Cause:

Motor parameter setting exception or AC drive model setting exception.



Remedy:

Set the motor and AC drive parameters correctly.
E019.2

Auto-tuning interruption
Cause:

Auto-tuning interrupted by a stop command.



Remedy:

Wait until auto-tuning is completed. The motor will stop automatically.
E019.3

Overcurrent during auto-tuning
Cause:

Current out-of-control during auto-tuning.



Remedy:


  • Set the motor parameters and AC drive model correctly.

  • Contact the technical support personnel.
E019.4

Auto-tuning back EMF exception
Cause:

Basic motor parameter setting error; Oscillation suppression failure during auto-tuning of back EMF.



Remedy:


  • Set the motor nameplate parameters and AC drive model correctly.

  • Adjust the oscillation suppression parameter.
E019.5

Motor type setting error
Cause:

Incorrect motor type.



Remedy:

Set the motor type correctly.
E019.7

No-load current auto-tuning error
Cause:

No-load current out-of-range during motor auto-tuning.



Remedy:

Set the motor nameplate parameters and AC drive model correctly.
E020.1

Encoder hardware wire breakage detection
Cause:

Encoder hardware feedback signal exception.



Remedy:


  • Check whether the correct PG card is selected.

  • Check whether the wiring is normal.

  • Check whether the encoder is normal.

  • Check whether the encoder DIP switch is appropriate.

  • Check whether the encoder parameters are set correctly.

  • Set F1-36 to a non-zero value, and set bit02 of AA-30 to enable PG fault detection. (Fault reported only in FVC mode).
E020.2

Encoder PPR error
Cause:

Inconsistency between encoder feedback speed and actual motor speed.



Remedy:

Check whether the ABZ encoder PPR or number of pole pairs of resolver is incorrect.
E020.3

No encoder feedback
Cause:

No encoder feedback speed.



Remedy:


  • Check whether the correct PG card is selected.

  • Check whether the wiring is normal.

  • Check whether the encoder is normal.

  • Check whether the encoder DIP switch is appropriate.

  • Check whether the encoder parameters are set correctly.
E020.4

Encoder direction fault
Cause:

Encoder direction opposite to motor rotation direction.



Remedy:

Set F1-30 to switch the encoder direction.
E020.5

Large encoder feedback speed fluctuation
Cause:

Sudden change of the encoder feedback speed (introduces control fluctuations/divergence). Detection disabled by default.



Remedy:


  • Check whether the correct PG card is selected.

  • Check whether the wiring is normal.

  • Check whether the encoder is normal.

  • Check whether the encoder DIP switch is appropriate.

  • Check whether the encoder parameters are set correctly.

  • Check whether the encoder shield layer is grounded at the AC drive side.

  • Check whether the motor enclosure is grounded.

  • Check whether the encoder cable is far away from the power cables.

  • Install a magnetic ring on the encoder cable.

  • Use twisted pair cable with dense metal mesh shield layer.

  • Use as few adapters as possible.

  • Set bit01 of A9-09 to enable software detection of wire breakage, set A9-08 to specify coefficient, set bit02 of A9-09 to remove glitches.
E020.8

ABZ encoder Z signal loss
Cause:

ABZ encoder Z signal loss.



Remedy:

This fault is reported only during self-check when the synchronous motor uses the ABZ encoder in FVC mode.
E020.9

Encoder pulse interference
Cause:

Encoder feedback speed fluctuation exception.



Remedy:

This fault is reported only during self-check of the encoder.
E021.1
E021.2
E021.3
E021.4

EEPROM read-write fault
Cause:

EEPROM read-write exception.



Remedy:


  • For parameters written through communication, check the RAM addresses and address mapping (Section 1.2 “Parameter Communication Addresses”).

  • If the EEPROM chip is damaged, contact the manufacturer to replace the main control board.
E021.5

EEPROM internal cache overrun
Cause:

EEPROM internal cache overrun.



Remedy:

For parameters written through communication, check for frequent writes.
E023.1

Short-to-ground
Cause:

Motor short-to-ground; Self-check during motor running; IGBT short circuit.



Remedy:


  • Check the connector adapters and measure the ground impedance by using a megohmmeter. If the problem persists, replace the cable or motor.

  • Do not run the motor until the cause of the fault is located.

  • Replace the motor and perform static self-check again.
E026.1

Accumulative running duration reach
Cause:

Accumulative running duration reaching setpoint.



Remedy:

Clear the record through parameter initialization.
E027.1
E027.2

User-defined fault
Cause:

Signal of user-defined fault input through the multi-function DI terminal, virtual I/O, or connector.



Remedy:

Eliminate the external fault, ensure that the mechanical condition allows restart (F8-18), and reset the operation.
E027.3
E027.4

User-defined fault (Connector)
Cause:

Signal of user-defined fault input through the connector.



Remedy:


  • Check settings of connector parameters (H2-06 to H2-07).

  • Eliminate the external fault, ensure that the mechanical condition allows restart (F8-18), and reset the operation.
L028.1
L028.2
L028.3
L028.4

User-defined alarm
Cause:

Signal of user-defined fault input through the connector.



Remedy:

Check settings of connector parameters (H2-08 to H2-11).
E029.1

Accumulative power-on duration reach
Cause:

Accumulative power-on duration reaching the setpoint.



Remedy:

Clear the record through parameter initialization.
E031.1

PID feedback loss during running
Cause:

PID feedback less than the value of FA-26.



Remedy:

Check the PID feedback signal or set FA-26 properly.
E032.1

Parameter exception (Reset)
Cause:

Parameter reset exception.



Remedy:

Reset FP-01. If the fault persists, contact the technical support personnel.
E032.2

Parameter exception (Backup)
Cause:

Parameter backup exception.



Remedy:

Back up all parameters again. If the fault cannot be reset, contact the technical support personnel.
E032.3

Parameter power-off exception
Cause:

Parameter power-off exception.



Remedy:

Check whether the power is off and whether the bus capacitor discharges too fast.
E032.4

Parameter setting exception
Cause:

Parameter setting exception.



Remedy:

Check whether the related parameters are set as required, especially parameters with setting limits that are associated with other parameters.
E032.6

Parameter power-on check exception
Cause:

Parameter power-on check exception.



Remedy:

Check the value of U2-09. If the value is normal, contact the technical support personnel.
E040.1

Pulse-by-pulse current limit fault
Cause:

  • Excessive load or locked-rotor.

  • Output short-to-ground.

  • Motor turn-to-turn short circuit.

  • Motor nameplate parameter error.

  • Output phase loss.

  • V/f oscillation.

  • Inadequate power rating of the AC drive.




Remedy:

  • Reduce the load and check the motor and mechanical conditions.

  • Perform self-check to check for the short-to-ground point.

  • Perform self-check, measure whether the resistance of the output terminal is symmetrical with a multimeter; replace motor if short circuit confirmed.

  • Set the motor parameters correctly.

  • Perform self-check and connect the motor properly.

  • Enable V/f oscillation suppression and adjust the oscillation suppression coefficient.

  • Replace the AC drive with one of higher power rating.
E042.1

Excessive speed deviation
Cause:

  • Incorrect setting of encoder parameters.

  • Motor auto-tuning not performed.

  • Excessive load.

  • Encoder direction fault.

  • Inappropriate setting of F9-69 and F9-70.




Remedy:

  • Set encoder parameters correctly.

  • Perform motor auto-tuning.

  • Ensure that a proper load is connected.

  • Set the encoder direction correctly.

  • Set the parameters correctly based on actual conditions.
E043.1

Motor overspeed
Cause:

  • Incorrect setting of encoder parameters.

  • Motor auto-tuning not performed.

  • Runaway caused by incorrect encoder zero point angle of synchronous motor.

  • Inappropriate setting of F9-67 and F9-68.




Remedy:

  • Set encoder parameters correctly.

  • Perform motor auto-tuning.

  • Check whether the encoder zero point angle obtained by auto-tuning is accurate and whether the connection is loose.

  • Set the parameters correctly based on actual conditions.
E045.1

Motor overtemperature
Cause:

  • Loose connection of temperature sensor.

  • Overhigh motor temperature.

  • Excessively low motor overtemperature protection threshold (F9-57 or F9-76).




Remedy:

  • Check the wiring of the temperature sensor.

  • Decrease the carrier frequency or take other measures to cool the motor.

  • Raise the motor overtemperature protection threshold to between 90°C to 100°C.
E045.2

Motor pre-overtemperature
Cause:

  • Loose connection of temperature sensor.

  • Overhigh motor temperature.

  • Excessively low motor pre-overtemperature protection threshold (F9-58 or F9-77).




Remedy:

  • Check the wiring of the temperature sensor.

  • Decrease the carrier frequency or take other measures to cool the motor.

  • Raise the motor pre-overtemperature protection threshold.
E047.2

STO fault
Cause: STO1 and STO2 signal disconnection.



Remedy: Check the wiring of STO1 and STO2.
E047.3

STO circuit undervoltage or overvoltage
Cause: STO circuit voltage exception.



Remedy: Contact the technical support personnel.
E047.4

STO circuit input subsystem exception
Cause: Input subsystem exception.



Remedy: Contact the technical support personnel.
E047.5

STO blocking output chip exception
Cause: Chip exception.



Remedy: Contact the technical support personnel.
E051.1

Pole position auto-tuning error
Cause: Check the motor for output phase loss.



Remedy: Connect the motor output correctly and ensure that the output contactor is closed.
E055.1

Slave error in master-slave control
Cause: Slave fault.



Remedy: Troubleshoot the problem based on the slave fault code.
E056.2

IGBT U- short circuit
Cause: IGBT monitoring VCE signal exception.



Remedy: Contact after-sales service.
E056.3

IGBT U+ short circuit
Cause: IGBT monitoring VCE signal exception.



Remedy: Contact after-sales service.
E056.4

IGBT V- short circuit
Cause: IGBT monitoring VCE signal exception.



Remedy: Contact after-sales service.
E056.5

IGBT V+ short circuit
Cause: IGBT monitoring VCE signal exception.



Remedy: Contact after-sales service.
E056.9

Output phase loss
Cause: Motor output phase loss.



Remedy: Make sure the motor is connected properly and the output contactor is normal.
E057.1

U phase upper bridge or V phase lower bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.2

U phase lower bridge or V phase upper bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.3

V phase upper bridge or W phase lower bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.4

V phase lower bridge or W phase upper bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.5

W phase upper bridge or U phase lower bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.6

W phase lower bridge or U phase upper bridge IGBT continuity failure
Cause: IGBT open circuit.



Remedy: Contact after-sales service.
E057.7

UV output end short circuit
Cause: Inter-phase output short circuit.



Remedy: Check for inter-phase short circuit.
E057.8

VW output end short circuit
Cause: Inter-phase output short circuit.



Remedy: Check for inter-phase short circuit.
E057.9

WU output end short circuit
Cause: Inter-phase output short circuit.



Remedy: Check for inter-phase short circuit.
E058.1

Module U phase current sensor inversely installed
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E058.2

Module V phase current sensor inversely installed
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E058.3

Module W phase current sensor inversely installed
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E058.4

Module UV phase sensor incorrectly inserted
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E058.5

Module VW phase sensor incorrectly inserted
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E058.6

Module WU phase sensor incorrectly inserted
Cause: Current sampling sensor exception.



Remedy: Contact after-sales service.
E059.1

UV phase imbalance
Cause: Motor turn-to-turn short circuit.



Remedy: Replace the motor and then perform self-check to confirm the cause.
E059.2

VW phase imbalance
Cause: Motor turn-to-turn short circuit.



Remedy: Replace the motor and then perform self-check to confirm the cause.
E059.3

WU phase imbalance
Cause: Motor turn-to-turn short circuit.



Remedy: Replace the motor and then perform self-check to confirm the cause.
E061.1

Braking unit overload
Cause: Overhigh power of braking resistor (resistance too small).



Remedy: Use a braking resistor with higher resistance.
E062.2

Braking transistor shoot-through
Cause:

  • Braking module exception.

  • Braking resistor short circuit.




Remedy:

  • Contact the technical support personnel.

  • Check whether the braking resistor is short circuited or damaged. If yes, replace it.
E062.3

Braking transistor overcurrent
Cause: Incorrect connection of braking resistor.



Remedy: Check whether the braking resistor is properly connected and whether the braking unit is normal.
E093.1

Motor rotor locked
Cause:

  • Excessive load or brake exception.

  • Low torque limit/current limit.

  • Auto-tuning not performed.

  • AC drive model setting error.




Remedy:

  • Ensure that the motor load is within a reasonable range.

  • Set the torque limit as appropriate.

  • Perform auto-tuning before running.

  • Set the AC drive model correctly.
E093.2

Motor stall
Cause:

  • Encoder interference/wire breakage.

  • Encoder PPR error or loose connection.

  • Auto-tuning not performed.

  • AC drive model error.




Remedy:

  • Check the encoder for interference.

  • Check whether the encoder is connected reliably.

  • Set the rated parameters of the motor correctly, and perform dynamic auto-tuning if possible.

  • Set the AC drive model correctly.
E093.4

Current control exception
Cause:

  • Output phase loss.

  • Encoder interference or encoder wire breakage.

  • Sudden and large drop in bus voltage.

  • Auto-tuning not performed.




Remedy:

  • Check the motor for phase loss.

  • Check whether the encoder is normal.

  • Keep the grid voltage stable.

  • Input motor parameters correctly and perform auto-tuning.
E094.1
Inconsistency between calculated and set numbers of pole pairs
Cause:

Incorrect setting of the number of motor pole pairs.



Remedy:


  • Set A9-02 only when the number of motor pole pairs exceeds 12.
E094.2
Motor power, voltage, and current matching error
Cause:

Motor power, voltage, and current mismatch.



Remedy:


  • Set the motor parameters correctly.
E094.3
No-load current range error
Cause:

Incorrect motor no-load current range.



Remedy:


  • Check the motor nameplate parameters and ensure correct model setting of the AC drive.
E094.4
Inconsistency between Lm, I0 and rated voltage
Cause:

Inconsistency with rated voltage caused by separate modification of no-load current or mutual inductance.



Remedy:


  • Set motor nameplate parameters correctly and perform auto-tuning.
E094.5
Rotor resistance range exception
Cause:

Rotor resistance range out-of-range.



Remedy:


  • Check whether the motor is rotating during auto-tuning.

  • Check whether the motor nameplate parameters and AC drive model setting are correct.
E094.7
Mismatch between the numbers of pole pairs of the resolver and synchronous motor
Cause:

Incorrect number of resolver pole pairs of synchronous motor.



Remedy:


  • Ensure that the number of pole pairs of the synchronous motor is divisible by the number of resolver pole pairs.
E159.1
Auto reset failure
Cause:

Auto reset disabled.



Remedy:


  • Check H2-20 to H2-39 to see whether auto reset is disabled.
E160.1
Modbus communication fault
Cause:

Modbus communication timeout.



Remedy:


  • Check whether the RS-485 communication cable is correctly connected.

  • Check whether the setting of FD-04 and the PLC communication cycle are proper.
E161.1
CANopen communication fault
Cause:

CANopen communication timeout.



Remedy:


  • Check whether the CAN communication cable is correctly connected.

  • Check parameters FD-15 to FD-17 for further action.
E161.2
CANopen PDO mapping inconsistency
Cause:

Inconsistency between PDO mapping configured for CANopen and the actual mapping.



Remedy:


  • Check the PDO mapping of parameters in group AF.
E162.1
CANlink communication fault
Cause:

CANlink heartbeat timeout.



Remedy:


  • Check whether the CAN communication cable is correctly connected.

  • Check parameters FD-15 to FD-17 for further action.
E162.2
CANlink station number conflict
Cause:

CANlink station number conflict.



Remedy:


  • Modify the CAN station numbers by using FD-13.
E164.1
Expansion card fault
Cause:

Expansion card fault.



Remedy:


  • Check communication of the expansion card.
E174.1
Wire breakage (HDI1)
Cause:

HDI1 wire breakage.



Remedy:


  • Check HDI wiring.
E174.3
Wire breakage (AI1)
Cause:

AI1 wire breakage.



Remedy:


  • Check AI1 wiring.
E174.4
Wire breakage (AI2)
Cause:

AI2 wire breakage.



Remedy:


  • Check AI2 wiring.
E174.5
Wire breakage (AI3)
Cause:

AI3 wire breakage.



Remedy:


  • Check AI3 wiring.