Omron 1S Series Servo Drives

Fault Code and MeaningCause and Remedy
0011
EtherCAT State Change Error

Cause:

A communications state change command was received for which the current communications state could not be changed.



Remedy:

Check the command specifications for communications state transitions in the host controller and correct host controller processing.
0012
EtherCAT Illegal State Change Error

Cause:

An undefined communications state change command was received.



Remedy:

Check the command specifications for communications state transitions in the host controller and correct host controller processing.
0013
Bootstrap State Transition Request Error

Cause:

The state transition to unsupported Bootstrap was requested by the EtherCAT master.



Remedy:

Check the EtherCAT master setting so that the EtherCAT master does not request the transition to Bootstrap.
0014
SII Verification Error


Cause:

Data was incorrectly overwritten in the non-volatile memory of the EtherCAT slave communications controller.



Remedy:

If this event does not occur after you cycled the power supply, use the product continuously. It is supposed that a temporary error occurred due to a read error.


Cause:

Failure of the EtherCAT slave communications controller or false detection.



Remedy:

If this event occurs again, replace the Servo Drive.

0016
Mailbox Setting Error

Cause:

An incorrect mailbox setting of Sync Manager was detected.



Remedy:

Check the mailbox setting, and then download it to the EtherCAT master again.
001B
Sync Manager WDT Error


Cause:

An EtherCAT communications cable is disconnected, loose, or broken. (PDO communications were interrupted for the allowable period or longer).



Remedy:

Connect the EtherCAT communications cable securely.


Cause:

Host controller error.



Remedy:

Check the operation of the host controller. Take appropriate countermeasures if there is a problem.

001D
RxPDO Setting Error


Cause:

The RxPDO setting of EtherCAT master is incorrect.



Remedy:

Correct the RxPDO setting according to the definition of ESI of Servo Drive, and then download it to the EtherCAT master again.


Cause:

Servo Drive failure.



Remedy:

If this event occurs repeatedly after the download to the EtherCAT master, the Servo Drive is faulty. Replace the Servo Drive.

001E
TxPDO Setting Error


Cause:

The TxPDO setting of EtherCAT master is incorrect.



Remedy:

Correct the TxPDO setting according to the definition of ESI of Servo Drive, and then download it to the EtherCAT master again.


Cause:

Servo Drive failure.



Remedy:

If this event occurs repeatedly after the download to the EtherCAT master, the Servo Drive is faulty. Replace the Servo Drive.

001F
PDO WDT Setting Error

Cause:

An incorrect PDO WDT setting was detected.



Remedy:

Check the PDO WDT setting, and then download it to the EtherCAT master again.
0024
TxPDO Mapping Error

Cause:

An incorrect TxPDO was set, such as out of the allowable range of Index, Subindex, or size. This error is detected when:

  • An object which cannot be mapped as a PDO is mapped.

  • Total size of objects mapped as safety process data exceeds specified size.

  • Total size of objects mapped to Sync Manager 3 PDO Assignment is one byte.

  • Total size of objects mapped as variable PDOs exceeds the maximum size.

  • 1B10 hex is not mapped while 1710 hex is mapped.

  • There were too many or too little data in 1B10 hex.

  • Process data components were included in PDOs other than 1B10 hex.





Remedy:

Correct the TxPDO setting, and then download it to the EtherCAT master again.
0025
RxPDO Mapping Error

Cause:

An incorrect RxPDO was set, such as out of the allowable range of Index, Subindex, or size. This error is detected when:

  • An object which cannot be mapped as a PDO is mapped.

  • Total size of objects mapped as safety process data exceeds specified size.

  • Total size of objects mapped to Sync Manager 2 PDO Assignment is one byte.

  • Total size of objects mapped as variable PDOs exceeds the maximum size.

  • 1710 hex is not mapped while 1B10 hex is mapped.

  • There were too many or too little data in 1710 hex.

  • Process data components were included in PDOs other than 1710 hex.





Remedy:

Correct the RxPDO setting, and then download it to the EtherCAT master again.
0028
SM Event Mode Setting Error

Cause:

The unsupported SM Event Mode was set.



Remedy:

Check the synchronization setting, and then download it to the EtherCAT master again.
002C
Synchronization Error


Cause:

Noise. (A signal for synchronous communications could not be detected).



Remedy:

Take noise countermeasures if excessive noise affects the EtherCAT communications cable.


Cause:

Error of the EtherCAT slave communications controller.



Remedy:

If this event occurs again after you cycled the power supply, replace the Servo Drive.

002D
Synchronization Interruption Error


Cause:

Incorrect EtherCAT synchronization setting of the host controller.



Remedy:

Set the synchronization setting of the host controller according to the synchronization specifications for the EtherCAT slave.


Cause:

Failure of the EtherCAT slave communications controller or false detection.



Remedy:

If this event does not occur after you cycled the power supply, use the product continuously. It is supposed that a temporary error occurred due to a read error. If this event occurs again, the Servo Drive is faulty. Replace the Servo Drive.

0030
DC Setting Error

Cause:

A mistake was made in the DC Mode operation setting.



Remedy:

Check the DC Mode setting, and then download it to the EtherCAT master again.
0034
Communications Synchronization Error


Cause:

The power supply to the host controller was interrupted during PDO communications.



Remedy:

Reset the error in the host controller. This event reports an error that was detected when the power supply to the host controller was interrupted. It does not indicate that an error currently exists.


Cause:

An EtherCAT communications cable is disconnected, loose, or broken, or has a contact failure.



Remedy:

Connect the EtherCAT communications cable securely. If the cable is broken, replace it.


Cause:

Noise.



Remedy:

Take noise countermeasures if excessive noise affects the EtherCAT communications cable.

0035
Synchronization Cycle Setting Error


Cause:

The variable PDO mapping is used, and the number of objects is more than the maximum number of mapped objects for the cycle time.



Remedy:

Set the number of objects to a value smaller than the maximum number of mapped objects for the cycle time.


Cause:

The cycle time setting is incorrect.



Remedy:

Correct the cycle time setting.

0050
ESC Error

Cause:

Error access from the non-OMRON EtherCAT master.



Remedy:

Please contact the manufacturer of EtherCAT master.
0051
ESC Error

Cause:

Error of the EtherCAT slave communications controller or false detection.



Remedy:

If this event occurs repeatedly after you cycled the power supply, the EtherCAT slave communications controller is faulty. Replace the Servo Drive.
0061
Node Address Updated

Cause:

The node address is changed to a value of the ID switches, or changed from a set value in Sysmac Studio to a value of the ID switches.



Remedy:

Check the node address value. Set a correct value if it is wrong.
8000
Unit Restarted

Cause:

Restart was performed.



Remedy:


12 00

Overvoltage Error


Cause: The main circuit power supply voltage (P-N voltage) exceeded the operation guarantee range.


Remedy:


  • Input the correct voltage.



Cause: The input voltage increased.


Remedy:


  • Use appropriate external devices such as UPS.



Cause: The Regeneration Resistor wiring is broken.


Remedy:


  • If a resistance value of the external resistor is infinite between terminal B1 and B2, the wiring is broken. Replace the external resistor.



Cause: The External Regeneration Resistor is set or selected inappropriately.


Remedy:


  • Confirm the necessary regeneration processing capacity, and connect an appropriate External Regeneration Resistor.
  • Set the parameters of the External Regeneration Resistor to the resistance value of the resistor in use.



Cause: Servo Drive failure.


Remedy:


  • If this event occurs again after you performed all corrections shown above, replace the Servo Drive.


13 00

Main Power Supply Undervoltage


Cause: Incorrect wiring of the main circuit power supply.


Remedy:


  • If the power supply cables are not wired to the main circuit terminals (L1, L2, L3), connect them.



Cause: The low power supply voltage is applied to the Servo Drive.


Remedy:


  • Increase the power supply capacity if it is small.
  • Measure the applied power supply voltage, and apply voltage according to the specification.



Cause: The long time was set in Momentary Hold Time and the voltage was decreased momentarily.


Remedy:


  • Remove the cause that momentarily decreased the voltage.
  • Set a short time in the Momentary Hold Time.


13 01

Main Circuit Power Supply Phase Loss Error


Cause: Incorrect wiring, for example single-phase power supply is input to a 3-phase input type Servo Drive.


Remedy:


  • Confirm the Servo Drive specifications and perform the correct wiring.



Cause: Single-phase power supply is input but phase loss detection is enabled.


Remedy:


  • Set Main Circuit Power Supply – Phase Loss Detection Enable (4320-02 hex) to 0 (disabled).



Cause: The power supply voltage is low or insufficient.


Remedy:


  • Improve power supply conditions by increasing the power supply capacity.



Cause: Broken wiring of the main circuit power supply input.


Remedy:


  • Replace the main circuit power supply input cable.


14 00

Overcurrent Error


Cause: There is a short circuit, ground fault, or contact failure on the U, V, or W motor cable.


Remedy:


  • Correct the connection of the U, V, or W motor cable.



Cause: There is a short circuit on the wiring of External Regeneration Resistor.


Remedy:


  • Correct the wiring of External Regeneration Resistor.



Cause: The insulation resistance failed between the U, V, or W motor cable and the motor ground wire.


Remedy:


  • Replace the motor.



Cause: False detection due to noise.


Remedy:


  • Take noise countermeasures.


14 01

Power Module Error


Cause: Short circuit, ground fault, or contact failure on U, V, W motor cable.


Remedy:


  • Correct the connection of the U, V, or W motor cable.



Cause: Short circuit on External Regeneration Resistor wiring or resistance too small.


Remedy:


  • If there is a short-circuit on the wiring, correct the wiring.



Cause: Insulation resistance failure between U, V, W and ground.


Remedy:


  • Replace the motor.


14 02

Regeneration Circuit Error


Cause: Power supply voltage insufficient, rising slowly, fluctuating, or L1/L2/L3 not connected.


Remedy:



  • If charge lamp is OFF: Check wiring, check External Resistor resistance/power, check P-N1 voltage.

  • If charge lamp is ON: Check for power supply fluctuation or instantaneous drop.




Cause: N1 and N2 terminals are opened.


Remedy:


  • Wait until voltage between B2 and N1 is stable. Replace Servo Drive if resistance check fails.


15 00

Servo Drive Overheat


Cause: Ambient temperature exceeded specified value.


Remedy:


  • Improve the ambient temperature and cooling conditions.



Cause: Overload.


Remedy:


  • Increase acceleration/deceleration time or stopping time to lighten load.
  • Increase capacities of Servo Drive and motor.


15 01

Motor Overheat Error


Cause: Temperature is high around the motor.


Remedy:


  • Adjust temperature around the motor to within operating range.



Cause: The motor is overloaded.


Remedy:


  • Adjust the motor load ratio to be within the specified range.


16 00

Overload Error


Cause: Operation continued for a long time with high load.


Remedy:



  • Increase acceleration/deceleration time or stop time.

  • Lighten the load.

  • Adjust gain or inertia ratio.

  • Set appropriate brake timing.

  • Increase capacity of Servo Drive and motor.




Cause: Incorrect wiring of motor cable or broken cable.


Remedy:


  • Connect cable as shown in wiring diagram. Replace if broken.
  • Measure voltage at brake terminal.



Cause: Increase in friction.


Remedy:


  • Check machine conditions and remove the cause of friction.


18 00

Regeneration Overload Error


Cause: Regeneration processing is set inappropriately.


Remedy:


  • Set the regeneration processing value equal to the resistance of the Resistor in use.



Cause: Regeneration Resistor selected inappropriately.


Remedy:



  • Increase deceleration/stopping time.

  • Decrease command velocity.

  • Use an External Regeneration Resistor.




Cause: Applied power supply voltage is too high.


Remedy:


  • Apply the specified power supply voltage.


18 02

Regeneration Processing Error


Cause: Regeneration processing continues for 500 ms or more (Selection/Setting issue).


Remedy:



  • Check settings and resistor selection.

  • Increase deceleration time.

  • Use External Regeneration Resistor.




Cause: Regeneration Resistor failure.


Remedy:


  • Check if Resistor is faulty and replace.


20 00

Runaway Detected


Cause: Incorrect wiring of motor cable or broken cable.


Remedy:


  • Connect motor cable correctly. Replace if broken.



Cause: Motor rotated opposite to command by external forces.


Remedy:


  • Take countermeasures so motor is not subjected to external forces.
  • Set Runaway Detection (3B71-01 hex) to 0 (disabled) if intended.


21 00

Encoder Communications Disconnection Error


Cause: Noise into the encoder cable.


Remedy:



  • Separate motor and encoder cables.

  • Connect shield to FG.

  • Confirm motor ground is connected to FG.




Cause: Contact failure or disconnection.


Remedy:


  • Replace encoder cable if broken. Firmly connect connector.



Cause: Power supply undervoltage to encoder.


Remedy:


  • Use the recommended encoder cable.


21 01

Encoder Communications Error


Cause: Noise into the encoder cable.


Remedy:


  • Separate cables, connect shield to FG, ground motor.



Cause: Contact failure or disconnection.


Remedy:


  • Replace encoder cable, secure connector.


24 00

Excessive Position Deviation Error


Cause: Motor operation does not follow command.


Remedy:



  • Identify and remove cause limiting motor operation.

  • Adjust gain, increase acceleration/deceleration time.




Cause: Following error window value is small.


Remedy:


  • Increase the setting of the Following error window.


24 01

Excessive Speed Deviation Error


Cause: Motor does not follow command (parameter inappropriate).


Remedy:


  • Adjust gain, increase acceleration time.



Cause: Output axis limited by external forces.


Remedy:


  • Take countermeasures against external forces.


26 00

Excessive Speed Error


Cause: Velocity command value is too large.


Remedy:


  • Do not give excessive velocity command. Check electronic gear ratio.



Cause: Overshooting occurred.


Remedy:


  • Adjust gain if overshooting due to faulty gain adjustment.


27 01

Absolute Value Cleared


Cause: The multi-rotation counter of the absolute encoder was cleared.


Remedy:


  • This operation is performed for safety and is not an error.


28 00

Pulse Output Overspeed Error


Cause: Dividing ratio setting is inappropriate.


Remedy:


  • Correct the setting of Encoder Dividing Pulse Output (Denominator/Numerator).


29 03

Following Error Counter Overflow


Cause: Motor operation does not follow the command.


Remedy:


  • Adjust gain, increase acceleration/deceleration time.



Cause: Motor rotated/limited by external forces.


Remedy:


  • Take countermeasures against external forces.


34 01

Software Limit Exceeded


Cause: Incorrect setting of Software Position Limit.


Remedy:


  • Correct the setting of Software Position Limit.



Cause: Position exceeded value set in Software Position Limit.


Remedy:


  • Set command value to be within the range of Software Position Limit.


35 00

FPGA WDT Error


Cause: False detection due to excessive noise.


Remedy:


  • If not repeated after power cycle, it is a temporary error due to noise.



Cause: Hardware failure.


Remedy:


  • If event occurs again, replace the Servo Drive.


35 01

System Error


Cause: False detection due to excessive noise or fatal software error.


Remedy:


  • Cycle power. If repeated, replace the Servo Drive.


36 00

Non-volatile Memory Data Error


Cause: Power interruption or noise occurred while parameters were saved.


Remedy:


  • Save data after setting parameters again, and cycle power.


38 00

Drive Prohibition Input Error


Cause: Both Positive (POT) and Negative (NOT) Drive Prohibition Inputs turned ON.


Remedy:


  • Check and correct error on switch, wire, power supply connected to Drive Prohibition Inputs.


41 00

Absolute Encoder Counter Overflow


Cause: An inappropriate value was set in Encoder Operation Selection.


Remedy:


  • Set appropriate value in Encoder Operation Selection when Using Absolute Encoder.



Cause: Multi-rotation number exceeded maximum.


Remedy:


  • Set travel distance so multi-rotation number does not exceed maximum.


43 01

Encoder Memory Error


Cause: False detection due to noise or Non-volatile memory failure.


Remedy:


  • If occurs after power cycle, encoder is faulty. Replace motor.


45 00

Absolute Encoder Multi-rotation Counter Error


Cause: Temporary error due to multi-rotation detection function (vibration, impact).


Remedy:


  • Use product if error does not recur. If repeated, replace motor.


47 00

Overspeed Error


Cause: Motor rotated by external forces.


Remedy:


  • Take countermeasures so motor is not subjected to external forces.



Cause: Encoder failure.


Remedy:


  • If repeated, replace the motor.


59 00

Fan Error


Cause: Foreign matter in cooling fan.


Remedy:


  • Remove foreign matter.



Cause: Cooling fan failure.


Remedy:


  • If no improvement, replace Servo Drive.


62 00

Control Right Release Error


Cause: USB or EtherCAT cable disconnected during Sysmac Studio connection.


Remedy:


  • Connect the USB or EtherCAT cable.



Cause: Excessive noise.


Remedy:


  • Take noise countermeasures.


87 00

Error Stop Input


Cause: The Error Stop Input (ESTP) was input.


Remedy:


  • Remove the cause of Error Stop Input.



Cause: ESTP incorrectly wired.


Remedy:


  • Correct the wiring.


88 01

ESC Initialization Error


Cause: Data incorrectly written in memory or Controller failure.


Remedy:


  • Cycle power. If repeated, replace Servo Drive.


93 00

Electronic Gear Setting Error


Cause: Electronic gear ratio exceeded allowable range.


Remedy:


  • Correct the electronic gear ratio to the range from 1/2,000 to 2,000.


A0 00

Overload Warning


Cause: Operation continued for long time with high load (exceeded 85%).


Remedy:


  • Increase acceleration/deceleration time.
  • Lighten load.
  • Adjust gain/brake timing.


A1 00

Regeneration Overload Warning


Cause: Regeneration Load Ratio exceeded 85%.


Remedy:


  • Check regeneration processing setting.
  • Use External Regeneration Resistor.


A4 00

Encoder Communications Warning


Cause: Noise into encoder cable.


Remedy:


  • Separate cables, connect shield to FG.



Cause: Contact failure of encoder cable.


Remedy:


  • Check connector, replace cable if broken.


C0 00

STO Detected


Cause: The safety input OFF state was detected via safety input signal or EtherCAT.


Remedy:


  • Reconnect the input wiring for safety inputs.
  • Remove the cause that turned OFF the safety input signal.