"Duty factor warning" versus "Joint load

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dhyan
dhyan ✭
in Robot Controller
Dear All



   Hi, after using ABB Robot for 4 years, it's a first time I got

Alarm 50263 (Duty factor warning).

"The duty factor for the gearbox of joint rob1_1 of robot ROB_1 is too high.

Continued running without adjustment may cause damage to motor and gearbox.

Contact your local ABB service support center."

Action : Reduce the speed or increase the wait time.



In almost of all the cases, I ussually get Alarm 50055 (Joint load too high).



My question :

1. What is the differences between "Duty factor warning" and Joint

load too high?

  I see that they have the same remedy : reducing the speed.

  Is it right that "Duty factor warning" is a special case of "Joint

load too high"?



2. Actually the robot's cycle time is close to the minimum limit ( I

must catch up the target of speed).

  Is there anyone know the solution to solve this problem beside reducing the

speed? May be there is a parameter that I can set by software?



Thanks and regards

fear of GOD is the beginning of wisdom

Comments

  • Jorge
    Jorge ✭✭
    Duty Factor, is error that raises the robot when, after evaluate the last 30 minutes of produccion (moves, speed, loads, acceleration, etc), thinks that a gearbox is working outside of the specification, and they life will reduce.

    You can reduce the problem, if you change the following parameter:

    MOTION_SYSTEM:

          -name "system_1" -min_temp_ambient_cabinet 5 -max_temp_ambient_cabinet 45
          -min_temp_ambient_robot 5 -max_temp_ambient_robot 45

    Change 45 to 40.

    /Jorge
    Jorge Turiel

  • dhyan
    dhyan ✭
    Dear Mr Jorge

            Thank you very much for sharring your experience. It's very very helpful.

    Regard

    fear of GOD is the beginning of wisdom
  • Gloris13
    Gloris13 ✭
    Jorge, por qué decidiste reducir la temperatura?
  • Amine108
    Amine108 ✭
    dhyan said:
    Dear All

       Hi, after using ABB Robot for 4 years, it's a first time I got
    Alarm 50263 (Duty factor warning).
    "The duty factor for the gearbox of joint rob1_1 of robot ROB_1 is too high.
    Continued running without adjustment may cause damage to motor and gearbox.
    Contact your local ABB service support center."
    Action : Reduce the speed or increase the wait time.

    In almost of all the cases, I ussually get Alarm 50055 (Joint load too high).

    My question :
    1. What is the differences between "Duty factor warning" and Joint
    load too high?
      I see that they have the same remedy : reducing the speed.
      Is it right that "Duty factor warning" is a special case of "Joint
    load too high"?

    2. Actually the robot's cycle time is close to the minimum limit ( I
    must catch up the target of speed).
      Is there anyone know the solution to solve this problem beside reducing the
    speed? May be there is a parameter that I can set by software?

    Thanks and regards
    How do you solve 50055 alarm 
  • innebandy
    innebandy ✭✭
    edited April 2021
    To Amine108:
    Regarding Error 50055, you need to follow the instructions in the troubleshooting manual as listed below.
    Description: Actual torque on joint arg too high. Might be caused by incorrect load data, too high acceleration, high external process forces, low temperature or hardware error.
    Recommended actions: • Check load data. • Reduce acceleration or speed. • Check hardware.
    When it comes to H/W error, Motor power cable issues are most common.

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