hi every one, i have a R30-i controller
i have a strange problem, i modify some points in program and after test the positions are OK.
after some days when i check the positions they are NOT OK, there is shift in positions.
please let me have your comment
best regards
Positions or Position Registers?
Are the values changing, or is the robot drifting?
Is the robot properly bolted down? Had this happen to me on a couple of occasions.
What process are you working on ?
What type of job is this robot doing ?
What and when does your problem happen ?
Check the Position page and note the values for the XYZWPR. When the position changes, do these values change?
(You can also highlight the P[] value and check program position before/after to see if someone/something is changing the target value.)
Hello,
You can send robot to its Zero position and check witness mark . Usually this happen when on of the robot servo/ gear box is wear out.
You can give us more info to think..
1> How old is the robot?
2> Did you get any maintenance work done on particular one?
3> What kind of work environment is in robot working on?-- Most importance temperature , wash environment
How much is the shift in positions ?
Other possible issues can be :
Not properly grounded cables,
An encoder that is loose (had this myself, forgot to tighten the bolts after exchanging an encoder)
Did you ever find a solution for this problem? I'm having the same type of issue where the robot will run fine for 3-4 hours and then all of the sudden my x and z positions are off by 6-8mm. I manually adjust the x and z and it will run fine for a couple of hours and then I have to change the positions back to the original settings. I check the zero marks and everything always lines up.
