Payload ?
I have received collision alarms & OVC on welding robots in hot environments; flux-core welding 450+ amps with hour long cycle times. Changing speed and motion path on large joint moves would solve that issue.
Payload ?
I agree that is worth investigating. Also, you have it set to be more sensitive than default.
Menu > Next > System > Motion
If that did not fix it try putting new grease into the joint. Worse case scenario you might have to replace the motor.
hi sanjay, how many robots are Welding on the same Jig?
did you checked if there is a air bubble in the transmision?
how much current is the engine pulling when you are getting this Alarm?
I had the same behavior few weeks ago.. in my case it was the Engine.. after we changed it the Problem disappeared.
You can also check the disturbance in menu > next > status > axis. You have to see DISTURB above the F4 button if I remember right.
Another thing worth considering is if you have a linear move that is close to your last taught point, but with joint angles that have the robot in a different posture. The robot may try moving fast enough to error out on an axis speed limit, and if it's already moving fast enough the sudden stop may trigger a collision alarm. What is the specific error you are getting, and how does it appear? What I mean is are you getting a yellow warning like this one, or just an alarm in the message window and fault history?
