Mecanumeric MF2040 LI retrofit (Pantograph)

Hi, yes im the same guy , the machine its giving me some problems , btw if i can ask how much did you paid them ? I saw them for ~400 the motor and ~400 the drive. Leadshine seem a good product but idk i'ld like if someone can guarantee them for a professional work as the Delta , they seem pretty good at a really good price.

Good to know samlevy0515 , do you know a good place were to buy them ? I found them on the sites that i named .

My experience with issues with servos on older machines, has been. probably 70% of the time servo problems are usually cabling issues, about 20% a problem with the drive, and maybe 10% a motor problem. Intermittent problems are almost always cable related, and most servo motor alarms from the drive are also usually cabling issues. Check any cables that move or are flexed regularly, as well as connections at plugs, cord grips, and pinch points.

As to servo replacement options, I think Delta is nice, but Leadshine is nearly as good. Be careful of Chinese knockoffs if buying from questionable 3rd party venders.

Hi Todd,
I’ve checked everything—the only thing left is the motor encoder, and a lot of people, including an electrician, told me it’s likely the problem. I’ve tested all the cables (several times), the controller, and I’ve even done parameter resets. So, It must be the encoder , because i've powered the motor with a  power supply and it works.Just to clarify: I’m not doing the retrofit only for  the motor. It’s because I’ve been talking to a guy who used to work on the same machine, and he said there are serious issues with the Z axis ,it doesn’t save its position. Actually, before the machine broke, I had experienced this issue myself.Over the last few days, I did some research and found a good shop online Variumetrum and  i have done some research and seem's good so here my choices:

• 3 x Leadshine ELM1 750W with brake
• 3 x Leadshine AC Servodrive EL6 750W
• 1 x Mesa 7I76EU(not from the same shop)

On the old machine i've Sanyo Denki 500W  DC80 Model 850T-0123EL7 , brushed motor .
Let me know what you think!

Ps- I've only to think to the z axis and than i can buy all of them.

One thing about optical encoders, they really don't appreciate contamination. If oil or coolant get into them, it will generally really screw them up. Even if none of the electronics with are hurt, a little dirt in the wrong spot or on the wheel can be very bad. Also when they get really old sometimes the LED source can get weak or fail.

And the slotted disk can sometimes rust.