"Duty factor warning" versus "Joint load

dhyan

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

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

dhyan

Dear Mr Jorge

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

Regard

Gloris13

Jorge, por qué decidiste reducir la temperatura?

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

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.