Will this work operating the servo bi-directional? I have a servo connected to a gearbox On a rotary apparatus that needs to work in both directions. Everything I have tried so far will ONLY JOG forward. If I try to reverse direction, it will still only move forward. Thanks
In other words, yes...what I show is bi-directional if you swap the direction you wan to run. Just note that a servo has a standard order of operation it needs to follow before movement. That could be your issue as well. I have a video on this UA-cam channel about servo order of operation
@@ShaneWelcher I also have (4) servo-driven hoists that have no problem going either direction, but they are set up as linear. The servo function in question is set up as rotary with a scaling unwind parameter for 0-359 display and control. Is there any way I could have you look at the program? It is too big to copy and paste here. Also, to whoever reads this, I started out learning how to program AB PLC's by watching Shane's UA-cam videos. Awesome teaching tool. If you want more than UA-cam, check out Shane's Servo Motion Mastery courses at Udemy.
Add a manually controlled request that triggers a mam instruction to a certain position that seems to fit what you are asking. An MAJ instruction is a continuous move as long as active so if you use an MAJ then set that instruction run speed really low. Although, it sounds like the MAM instruction sounds best for what you are asking.
Hi Shane, I have a problem in a servo motor, the actual position variable when the servo does a move or a jog, only have a variation between 0 and 1. For example, if execute a MAM the servo completes the move but the actual position variable doesn´t show the real position, only a variation between 0 and 1. Any idea what the may be?? Thanks!
Very useful information Shane. Thank you for sharing.
afigayed
Glad I could help out.
Will this work operating the servo bi-directional? I have a servo connected to a gearbox On a rotary apparatus that needs to work in both directions. Everything I have tried so far will ONLY JOG forward. If I try to reverse direction, it will still only move forward. Thanks
Then it sounds like a mechanical hang up, maybe something is wrong with the gearbox
In other words, yes...what I show is bi-directional if you swap the direction you wan to run.
Just note that a servo has a standard order of operation it needs to follow before movement.
That could be your issue as well.
I have a video on this UA-cam channel about servo order of operation
@@ShaneWelcher I also have (4) servo-driven hoists that have no problem going either direction, but they are set up as linear. The servo function in question is set up as rotary with a scaling unwind parameter for 0-359 display and control. Is there any way I could have you look at the program? It is too big to copy and paste here. Also, to whoever reads this, I started out learning how to program AB PLC's by watching Shane's UA-cam videos. Awesome teaching tool. If you want more than UA-cam, check out Shane's Servo Motion Mastery courses at Udemy.
@@emilwirth2113 email me the program, I'll look into this.
Also, talk about what is wrong that is causing the question.
Shane@OnlinePLCsupport.com
How to manual jog servo only one pitch of ball screw ?
Add a manually controlled request that triggers a mam instruction to a certain position that seems to fit what you are asking.
An MAJ instruction is a continuous move as long as active so if you use an MAJ then set that instruction run speed really low.
Although, it sounds like the MAM instruction sounds best for what you are asking.
Hi Shane, I have a problem in a servo motor, the actual position variable when the servo does a move or a jog, only have a variation between 0 and 1. For example, if execute a MAM the servo completes the move but the actual position variable doesn´t show the real position, only a variation between 0 and 1.
Any idea what the may be?? Thanks!
It really could be multiple things & without seeing it, this is really a long list of things to check.
@@ShaneWelcher yes, I suspected. I´m gonna start to check the configuration, but I think I did it well. Thanks for the quick answer anyway!