# Problem when using positioner
**URL:** https://tech-community.robotics.abb.com/t/problem-when-using-positioner/3705
**Category:** Robot Controller
**Created:** [July 9, 2010, 10:02am UTC](https://tech-community.robotics.abb.com/t/problem-when-using-positioner/3705 "2010-07-09T10:02:17Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@winnefly](https://tech-community.robotics.abb.com/u/winnefly)
#### Post date: [July 9, 2010, 10:02am UTC](https://tech-community.robotics.abb.com/t/problem-when-using-positioner/3705/1 "2010-07-09T10:02:17Z")
We use a turntable as external axe. My workobject is defined as following:
PERS wobjdata
Workobject\_1:=[FALSE,FALSE,“ETL750”,[[0,0,0],[1,0,0,0]],[[0,0,200],[6.12303176911189E-17,0,0,1]]];
But when i execute the program, there is an error as below
60006 : the workobject wobj\_1 contains a coordinated mechanical unit which has no defined userframe
I try to create the userframe for the turntable, but it doesn?\_Tt work.
Anyone know how to solve this problem?:unamused:
---
### Author:  [@j\_proulx](https://tech-community.robotics.abb.com/u/j_proulx)
#### Post date: [July 19, 2010, 11:10pm UTC](https://tech-community.robotics.abb.com/t/problem-when-using-positioner/3705/2 "2010-07-19T23:10:33Z")
Hello. I hope you have this working by now. The values you have for the workobject are defined in the object frame and not the user frame section of the wobj data. Attached are some docs to help define the turn table user frame
BR / Jim Proulx
[webwiz/222/Positioners.zip](http://forums.robotstudio.com/webwiz/222/Positioners.zip)