# "Duty factor warning" versus "Joint load
**URL:** https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887
**Category:** Robot Controller
**Created:** [May 24, 2012, 4:11am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887 "2012-05-24T04:11:01Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@dhyan](https://tech-community.robotics.abb.com/u/dhyan)
#### Post date: [May 24, 2012, 4:11am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/1 "2012-05-24T04:11:01Z")
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
---
### Author:  [@Jorge](https://tech-community.robotics.abb.com/u/Jorge)
#### Post date: [May 24, 2012, 1:10pm UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/2 "2012-05-24T13:10:49Z")
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
---
### Author:  [@dhyan](https://tech-community.robotics.abb.com/u/dhyan)
#### Post date: [May 25, 2012, 4:27am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/3 "2012-05-25T04:27:11Z")
Dear Mr Jorge
Thank you very much for sharring your experience. It’s very very helpful.
Regard
---
### Author:  [@Gloris13](https://tech-community.robotics.abb.com/u/Gloris13)
#### Post date: [March 29, 2017, 5:14am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/4 "2017-03-29T05:14:49Z")
Jorge, por qué decidiste reducir la temperatura?
---
### Author:  [@Amine108](https://tech-community.robotics.abb.com/u/Amine108)
#### Post date: [April 15, 2021, 12:53am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/5 "2021-04-15T00:53:22Z")
> [@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
How do you solve 50055 alarm
---
### Author:  [@innebandy](https://tech-community.robotics.abb.com/u/innebandy)
#### Post date: [April 16, 2021, 4:25am UTC](https://tech-community.robotics.abb.com/t/duty-factor-warning-versus-joint-load/4887/6 "2021-04-16T04:25:22Z")
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.