Delta ASDA-B2 Servo Drive

Delta ASDA-B2 Servo Drive Fault Codes:

Fault Code and MeaningCause and Remedy
AL001

Over current
Cause:

  • The drive output is short-circuited.

  • The motor wiring is in error.

  • IGBT is abnormal (heat sink temperature abnormal).

  • The control parameter setting is in error.

  • Unreasonable command (acceleration time too fast).




Remedy:


  • Eliminate short-circuit and avoid metal conductor being exposed.

  • Rewire by following the wiring description from the user manual.

  • Send the drive back to the distributors or contact Delta.

  • Set back to the default setting and then gradually adjust the value.

  • Use less steep command or apply filter to smooth command.
AL002

Over voltage
Cause:

  • The input voltage of the main circuit is higher than the rated allowable voltage.

  • Wrong power input (incorrect power system).

  • The hardware of the servo drive is damaged.




Remedy:


  • Apply to the correct power supply or serial voltage regulator.

  • Apply to the correct power supply or serial adaptor.

  • Send the drive back to the distributors or contact Delta.
AL003

Under voltage
Cause:

  • The input voltage of the main circuit is lower than the rated allowable voltage.

  • No power supply for the main circuit.

  • Wrong power input (incorrect power system).




Remedy:


  • Re-confirm the voltage wiring.

  • Check the power switch.

  • Apply to the correct power supply or serial adaptor.
AL004

Motor combination error
Cause:

  • The encoder is damaged.

  • The encoder is loose.

  • Motor Combination Error (Connected to wrong motor).




Remedy:


  • Change the motor.

  • Install the motor again.

  • Change the motor / Connect to the right motor.
AL005

Regeneration error
Cause:

  • Chose wrong regenerative resistor or did not connect to external regenerative resistor.

  • Parameter P1-53 is not set to zero when the regenerative resistor is not in use.

  • Wrong parameter setting.




Remedy:


  • Calculate the value of the regenerative resistor again and correctly set P1-52 and P1-53.

  • Set parameter P1-53 of regenerative resistor to zero when it is not applying.

  • Correctly reset the value of P1-52 and P1-53.
AL006

Overload
Cause:

  • Over the rated loading of the drive and continuously excessive use.

  • The setting of the control system parameter is inappropriate.

  • Wrong wiring of the motor and the encoder.

  • The encoder of the motor is defective.




Remedy:


  • Increase the motor capacity or reduce the load.

  • Adjust the gain value of the control circuit; Slow down acceleration/deceleration setting.

  • Correct the wiring of U, V, W and the encoder.

  • Send the drive back to the distributors or contact Delta.
AL007

Overspeed
Cause:

  • Unreasonable command (Analog voltage abnormal).

  • Inappropriate parameter setting (P2-34 is too small).

  • Torque limit issue.




Remedy:


  • Use less steep command or apply filter to smooth command.

  • Correctly set parameter P2-34 (condition of over-speed warning).

  • Disable torque limit DI; Disable default setting; Set P1-12 ~ P1-14 to 100%.
AL008

Abnormal pulse command
Cause:

  • The pulse command frequency is higher than the rated input frequency.




Remedy:


  • Correctly set the input pulse frequency.
AL009

Excessive deviation of Position Command
Cause:

  • Parameter P2-35 is set too small.

  • The setting of the gain value is too small.

  • The torque limit is too low.

  • Excessive external load.




Remedy:


  • Increase the setting value of P2-35.

  • Correctly adjust the gain value.

  • Correctly adjust the torque limit value.

  • Reduce the external load or evaluate the motor capacity again.
AL011

Encoder error
Cause:

  • Wrong wiring of the encoder.

  • The encoder is loose.

  • Bad connection of the encoder (CN2 loose).

  • The encoder is damaged.




Remedy:


  • Correct wiring following the user manual.

  • Install the encoder again.

  • Reconnect the wiring.

  • Change the motor.
AL012

Adjustment error
Cause:

  • The analog input contact is incorrectly set back to zero.

  • The detection device is damaged.




Remedy:


  • Correctly ground the analog input contact.

  • Reset the power supply. If issue persists, send drive back to Delta.
AL013

Emergency stop
Cause:

  • Press the emergency stop button.




Remedy:


  • Activate (Release) emergency stop.
AL014

Reverse limit error
Cause:

  • Reverse limit switch is activated.

  • The servo system is unstable.




Remedy:


  • Enable the reverse limit switch.

  • Re-adjust the parameter or evaluate the motor capacity.
AL015

Forward limit error
Cause:

  • Forward limit switch is activated.

  • The servo system is unstable.




Remedy:


  • Enable the forward limit switch.

  • Re-adjust the parameter or evaluate the motor capacity.
AL016

IGBT Overheat
Cause:

  • Over the rated loading of the drive and continuously excessive using.

  • The drive output is short-circuit.




Remedy:


  • Increase the motor capacity or reduce the load.

  • Check the drive output wiring and correct it.
AL017

Abnormal EEPROM
Cause:

  • Error when DSP accesses EEPROM (Code EXGAB).

  • Abnormal hidden parameter (Code E100X).

  • Data in ROM is damaged (Code E0001).




Remedy:


  • If parameter is over reasonable range: Re-power on after adjusting.

  • If error writing parameter: Alarm can be cleared by DI.ARST.

  • Set the correct type of the drive.

  • Send the drive back to the distributors or contact Delta.
AL018

Abnormal signal output
Cause:

  • The encoder is in error (Check for AL011, AL024, AL025, AL026).

  • The output pulse exceeds the hardware allowable range.




Remedy:


  • Conduct the corrective actions for AL.011, AL.024, AL.025, AL.026.

  • Correctly set parameter P1-76 and P1-46 so P1-76 > Motor Speed.
AL019

Serial communication error
Cause:

  • Improper setting of the communication parameter.

  • Incorrect communication address.

  • Incorrect communication value.




Remedy:


  • Correctly set the parameter value.

  • Correctly set the communication address.

  • Correctly set the value.
AL020

Serial communication time out
Cause:

  • Improper setting of the time-out parameter.

  • The drive hasn’t received the communication command for a long time.




Remedy:


  • Correctly set the value.

  • Check if communication cable is loose/broken and correct wiring.
AL022

Main circuit power lack phase
Cause:

  • The main circuit power is abnormal (RST cable loose or not connected).




Remedy:


  • Make sure power applies. If issue persists, send drive back to Delta.
AL023

Early warning for overload
Cause: Early warning for overload.

Checking Method:

  • Check if it is used in overload condition.

  • Check if the value of parameter P1-56 is set too small.




Remedy:

  • Please refer to the corrective actions of AL006.

  • Please increase the setting value of parameter P1-56.

  • Or set the value over 100 and deactivate the overload warning function.
AL024

Encoder initial magnetic field error
Cause: The initial magnetic field of the encoder is in error (Signal U, V, W).

Checking Method:

  • Check if the servo motor is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit to avoid interference.

  • Check if shielding cables are used in the wiring of the encoder.




Remedy:

  • If issue persists, please send the drive back to the distributors or contact Delta.
AL025

The internal of the encoder is in error
Cause: Internal memory and internal counter are in error.

Checking Method:

  • Check if the servo is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit.

  • Check if shielding cables are used.




Remedy:

  • Please connect the UVW connector (color green) to the heat sink of the servo drive.

  • Ensure encoder cable separates from power supply/high-current circuits.

  • Please use shielding mesh.

  • If issue persists, send the drive back to the distributors or contact Delta.
AL026

Unreliable internal data of the encoder
Cause: Errors occur in the internal data for three times continuously.

Checking Method:

  • Check if the servo is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit.

  • Check if shielding cables are used.




Remedy:

  • Please connect the UVW connector (color green) to the heat sink of the servo drive.

  • Ensure encoder cable separates from power supply.

  • Please use shielding mesh.

  • If issue persists, send the drive back to the distributors or contact Delta.
AL027

The internal of the encoder is in error
Cause: The internal reset of the encoder is in error.

Checking Method:

  • Check if the servo is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit.

  • Check if shielding cables are used.




Remedy:

  • Please connect the UVW connector (color green) to the heat sink of the servo drive.

  • Ensure encoder cable separates from power supply.

  • Please use shielding mesh.

  • If issue persists, send the drive back to the distributors or contact Delta.
AL028

The internal of the encoder is in error
Cause: The encoder U, V, W signals are in error.

Checking Method:

  • Check if the servo is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit.

  • Check if shielding cables are used.




Remedy:

  • Please connect the UVW connector (color green) to the heat sink of the servo drive.

  • Ensure encoder cable separates from power supply.

  • Please use shielding mesh.

  • If issue persists, send the drive back to the distributors or contact Delta.
AL029

The internal of the encoder is in error
Cause: The internal address of the encoder is in error.

Checking Method:

  • Check if the servo is properly grounded.

  • Check if the encoder cable separates from the power supply or high-current circuit.

  • Check if shielding cables are used.




Remedy:

  • Please connect the UVW connector (color green) to the heat sink of the servo drive.

  • Ensure encoder cable separates from power supply.

  • Please use shielding mesh.

  • If issue persists, send the drive back to the distributors or contact Delta.
AL030

Motor crash error
Cause: Motor Crash Error.

Checking Method:

  • Check if P1-57 is enabled.

  • Check if P1-57 is set too small and the time of P1-58 is set too short.




Remedy:

  • If it is enabled by mistake, please set P1-57 to zero.

  • Adjust torque setting: if value is too small, alarm triggers by mistake. If too big, protection is lost.
AL031

Incorrect wiring of the motor power line U, V, W
Cause: The wiring of U, V, W of the motor is incorrect connected or the connection is breakdown.

Checking Method:

  • Check if U, V, W of the motor is incorrect connected.




Remedy:

  • Follow the user manual to correctly wire U, V, and W.

  • Make sure it is grounded.
AL035

Encoder temperature exceeds the protective range
Cause: Encoder temperature is over 120°C.

Checking Method:

  • Check if the environment temperature is excessive or the motor temperature is over 105°C.




Remedy:

  • Try to reduce operating temperature.
AL048

Excessive encoder output error
Cause: Encoder error causes abnormal output OR Output pulse exceeds hardware tolerance.

Checking Method:

  • Exam error recording (P4-00 ~ P4-05) to check if encoder error also occurs (AL011, AL024, AL025, AL026).

  • Check if P1-76 < Motor speed equation condition occurs.




Remedy:

  • Please refer to the corrective actions of AL011, AL024, AL025, and AL026.

  • Correctly set P1-76 and P1-46 according to the formula.
AL067

Encoder temperature warning
Cause: Encoder temperature is over 100°C.

Checking Method:

  • Check if the operating temperature is excessive or the motor temperature is over 85°C.




Remedy:

  • Try to reduce operating temperature.
AL083

Servo Drive Outputs Excessive Current
Cause: UVW cable short-circuited, Wrong motor wiring, or Analog signal interference.

Checking Method:

  • Check configuration of motor power cable. See if metal wire is exposed or AWG is worn.

  • Check if wiring sequence of UVW is correct.

  • Check for lack of phase when connecting UVW.

  • Check if GND of analog signal is misconnected to other signal.




Remedy:

  • Replace by new UVW cable and avoid exposed metal conductors.

  • Refer to Chapter 3 description and conduct wiring again.

  • GND of analog signal cannot be grounded with other signals.
AL085

Regeneration error
Cause: Wrong regenerative resistor chosen/connected, or Parameter P1-53 not set correctly.

Checking Method:

  • Check the connection of regenerative resistor.

  • Check if parameter P1-53 is set to zero when resistor is not in use.

  • Check the setting value of parameter P1-52 and P1-53.




Remedy:

  • Calculate value of regenerative resistor and correctly set P1-52 and P1-53.

  • Set P1-53 to zero when external resistor is not applying.

  • If issue persists, send drive back to distributors or contact Delta.
AL099

DSP firmware upgrade
Cause: Upgrade DSP firmware.

Checking Method:

  • Check if the firmware is upgraded.




Remedy:

  • Firstly set P2-08 to 30.

  • Then set P2-08 to 28, the alarm will be cleared when re-power on.
AL555

System failure
Cause: DSP processing error.



Remedy:

  • If AL555 occurs, do not do anything.

  • Send the drive back to the distributors or contact Delta.
AL880

System failure
Cause: DSP processing error.



Remedy:

  • If AL880 occurs, do not do anything.

  • Send the drive back to the distributors or contact Delta.