[hub]

The encoder wires are: Red, Brown, Shield (obviously GND)

*EDIT*
The connection on the motor sticker says red is + and brown is -. ?
Which is A? Or actually, my question is, what kind of encoder is it & how should I connect it?

[Al_The_Man]

Encoder? I believe you are looking at the DC tach these are not usually used on modern drives as velocity feedback to the drive is seldom used, now often torque mode is used.
If using Step/dir control, you may want to look at Larken drives, but you will need an encoder.
Al.

[hub]

Encoder? I believe you are looking at the DC tach these are not usually used on modern drives as velocity feedback to the drive is seldom used, now often torque mode is used.
If using Step/dir control, you may want to look at Larken drives, but you will need an encoder.
Al.

Aaah, now I get it! That makes sense! Thanks
Ok, will have to connect an encoder.
I had a look at the Larken website. When I clicked on Servo motor drivers -> "404 Not Found"...

[Al_The_Man]

This one worked Viper Servo Motor control
Al.

[hub]

Thanks The Viper 200 would work? If I input say 80V to it?
How can that thing work? lol. It has no heat-sink yet capable of driving 3400W..
Then next up; any suggestion on a nice power supply that would work? I can order a custom made, but it's expensive..

[hub]

What do you think about this:
Versatile Servo Drive VSD-XE | Granite Devices Online Shop

It's a bit more expensive, but it's a local company here in Finland so the final price might be about the same for me. And the specs are within the motor's I think.

[Al_The_Man]

Looks like they would cover it.
If you have access to the components, it is cheaper to build a rugged linear supply.
Transformer, bridge rectifier and Electrolytic are the basic components needed.
Depending on how many servo's will run off the P.S. will decide the VA rating of the Txfr.
Al.

[hub]

Looks like they would cover it.
If you have access to the components, it is cheaper to build a rugged linear supply.
Transformer, bridge rectifier and Electrolytic are the basic components needed.
Depending on how many servo's will run off the P.S. will decide the VA rating of the Txfr.
Al.

I have never built a PSU & I don't know how. With good instructions I might try it.

Also, reading the Granite device it says "VSD-XE is perfectly matched to wide range of motors from 5 to 1500W". That means 1500W is max, and at 80V I could use only max 18.75A?
Ok, fair enough, that's more than I need really

[Al_The_Man]

I have never built a PSU & I don't know how. With good instructions I might try it.

If you have used a soldering iron and can follow a simple wiring schematic, it should be easy for you to do.
You need to add the proper fusing etc.
There are plenty of build posts, here and other places on the web.
Your Txfr secondary needs to be 0.7x your desired DC voltage.
Your Txfr would need to be around 1Kva.
Al.

[hub]

If you have used a soldering iron and can follow a simple wiring schematic, it should be easy for you to do.
You need to add the proper fusing etc.
There are plenty of build posts, here and other places on the web.
Your Txfr secondary needs to be 0.7x your desired DC voltage.
Your Txfr would need to be around 1Kva.
Al.

Yes, I have soldered lots. Thats not a problem. And I have done lots & lost of connections & following schematics.
I'll have a look (google) for instructions.
Thanks again I really appreciate your help very much.

[Al_The_Man]

If you can get a Toroidal type Txfr they are a little more expensive, but can easily be modified for voltage out by reducing or adding turns on.
Another plus is auxiliary winding can also easily be added for a 5/12/or 24v P.S. without the need for adding wall-wart supplies etc.
These of course will also be switched on simultaneously with the main supply.
Al.

[hub]

Got this encoder (from extra stuff just laying around). The problem is it has only 100ppr.. Sure I could add some gearing to increase the resolution but...
I'll try it once I get a driver & see if it's good enough. I doubt it..

The PSU building.. It's just too much for me I think, reading stuff.. I'll have to try & find a factory made one..

[hub]

Got my X axis ballscrew finished & tested. Works (almost) very well
(Note to myself: using cheap chinese ballnuts on precision ballscrews is not a very good idea = some minor grinding noise even with lots of grease...)

Pic; Trying to sort out my messy electrical connections a bit, funny DIN rail on-scrap-wood-thing at the moment Added a 5V PSU for sensors too.

[hub]

Calibrating the axis - my method. Works pretty well

[diyengineer]

Calibrating the axis - my method. Works pretty well

thats awesome.

[hub]

What a mess! Got lots of electrical stuff today. next is wiring & connecting while waiting for mechanical stuff.
Got these things:
- 1.5kW AC Yaskawa servo
- 1.5kW AC Yaskawa servo drive
- Machine controller, it came with the drive (not sure I will use it since I use Mach3 for now at least).
- 2 pcs 400W AC Yaskawa servos
- a 400W Mitsubishi AC servo (which I'm going to disassemble and move the encoder to my 2kW DC servo)
- huge amount of cabling

Now I have to read hundreds (if not thousands) of pages of manuals... :tired:

[Al_The_Man]

- a 400W Mitsubishi AC servo (which I'm going to disassemble and move the encoder to my 2kW D servo)
-

Are you sure that the Mitsubishi encoder is a standard RS422 differential output?
As Mitsubishi predominantly use a serial encoder.
Al.

[hub]

Are you sure that the Mitsubishi encoder is a standard RS422 differential output?
As Mitsubishi predominantly use a serial encoder.
Al.

No I'm not.. In fact I have no idea at all what type of encoder it is. I haven't looked at it yet.
Damn So now I have a 100ppr incremental encoder & the Mitsubishi one, which won't work with "standard" drives?

If I can't use the encoder -> do you need a 400W Mitsu servo? I will sell it very very cheaply

[hub]

A couple of pics of the Mitsu servo..

[orkki]

Sell it here

CNC - Harrastus