Posted 14 Sep 2015 Hello, I need some help to get my servo to stop accurate. My sensor is E3X-ECT type. When the sensor detect a mark on top of the servo it is supposed to go exactly 360 degree, and it will then stop on the mark, but it goes a little past the mark. What can i do to make the sensor to detect it faster and then stop on the mark? Thanks for any help Share this post Link to post Share on other sites
Posted 14 Sep 2015 What model servo? Hope it has a latch [Touch Probe] function. Connect the sensor to the touch probe input of the servo drive. Record the position the sensor WAS triggered using the MC_TouchProbe. Define stop position by adding the equivalent units for 360deg to the recorded position. Absolute move to this new position. 1 person likes this Share this post Link to post Share on other sites
Posted 14 Sep 2015 Thank you so much for your help The servo model is R88M-K20030H-S2, so i think it will work. Share this post Link to post Share on other sites
Posted 14 Sep 2015 Another option: Is it consistent? If it always stops in the same spot, then jog to the 360 degree position after the home search (one time) and see what position it says. Let's say that you have a 0-360 table. If after the Home search you jog to the physical 360 position and it says 358, then you need the position to say 2 degrees after if finishes the home search. So, put 2 in for the Home Offset as shown below: Then for every home search, when it is done the present position will be 2 degrees, then you just need to do an MC_MoveAbsolute to 0 degrees. Share this post Link to post Share on other sites
Posted 14 Sep 2015 Thank you for the suggestion Not sure if i can use that one. The mark is on a cup on top of the servo, and when a new cup comes in the mark is on another place. Share this post Link to post Share on other sites
Posted 14 Sep 2015 Oh, I misread your initial question. For some reason, I thought you were asking about origin / home search. Not sure where I got that from. Yes, use the Mark input and look at the MC_MoveFeed instruction. Share this post Link to post Share on other sites