The pin-out should be the following:
I’m unsure why the pins are not marked as written above. Anyways, when soldering / making connections you should not break the encoder unless you wire the supply voltage and/or ground to wrong pins. If you get the supply wires correctly, the rest you can do by -even by- trial an error. The 0V color black and 5V color red makes at least sense.
thanks…lets see if someone from the granity staff know the exact wiring, or i think im going to stripp of the motor connector and check with multimeter.
Hi Barry
The BISS-C upgrade kit is that a direct fit replacement for the Mige?
Tomo mentioned he would be offering those for sale but I do not see it on the website.
Love your vids btw.
Peter
I still can’t understand how a direct replacement can be made, unless the kit includes some type of an adapter for mounting as well.
Yes, this was a direct bolt on replacement for the small Mige I reviewed in the recent SRG OSW review. This Mige has two opposing holes that are tapped for M3 threads. This pair of holes are closer together than the holes that the SinCos is using. And they fit the BISS-C mounting bracket perfectly. Now, some older Mige motors may not have these extra holes. If that is the case, Tomo includes a machined adapter bracket that bolts to the SinCos holes. This adapter has two tapped holes with screws in them, that will fit the BISS-C’s mounting bracket.
I will have review video out on Tomo’s conversion kit this weekend. As usual, it will show all this in detail. Along with the settings I used in Granity to get it up and running. This is a very easy kit to install.
Wow, ok.
Good to know!
It comes with a new cable as well I take it?
I’ll have to check with Tomo regarding an ETA on availability.
Yes, new cable included.
Yes sounds like you probably have a revised Mige Servo as the older units only have one pair of mounting holes and a longer encoder shaft which fails the direct replacement ability.
The only thing is, Barry said he updated the Mige he used for his SRG OSW review which had the Sincos.
Which, if I’m not mistaken fits the old shaft style.
Anyway, we’ll soon see the upgrade process in the upcoming review. I’m curious about the shaft fitment as well.
Yes the SinCOS fit the old style shaft because the sinCOS has a deeper Void for the encoder shaft from the Servo than does the BiSS which is part of why Mige had to make mods to the servo itself… The other issue is the Mounting hole locations being narrower on the BiSS which is what Barry mentioned was on the one he has so it was an already Mige Modded Servo… It sounds like there will be a crossover and some SinCOS and all newer 10K Servos (as the 10K’s will use the old mounting) will be able to accept the BiSS directly though in reality I am not sure that the upgrade from the SinCOS to the BiSS will be worth the upgrade cost. However it will be the new standard upper end encoder so it is what it is there.
Unfortunately I was not able to get the last of the sincos encoders floating around so I’ll have to wait to see if there is a biss retrofit solution with the older mige… let’s see what tomo comes up with…if it just needs to be spaced out a bit it should be an easy fix…
JCL currently has four SinCos encoders left in stock…
http://www.jcl-simracing.com/en/wheels/474-sincos-encoder-for-mige-motors.html
Fortunately we have access to all of the Mige M10010 motors from the early 5000ppr versions, we have measured the shafts to see exactly what is compatible with the new BISS-C encoder it seems that one adapter plate will cover all previous versions.
We will be manufacturing the adapter plates as of next week, if anybody would like to manufacture one for themselves the drawing and STEP files are available here:
BISS-C Adapter Plate Drawing and STEP File
The wiring details for the Mige cable to the DA15 Plug are available here:
BISS to SimuCube Cable Wiring
Thanks for drawings!
So it’s a single-turn absolute 22 bit, Binary code, Clockwise counting, 5 volts, BISS, the smaller diameter of a holder, 0.3 meters. 62.5kHz update rate with 10 Mbit rate on <12 meter 24AWG UTP cable.
Inside it is using sin-cos encoder + digital converter with 9 bit subdivision resolution and 2048 P/R, so it’s >1M resolution (last 2 bits could be noise). Original sin-cos on IONI was around 5 bit sibdivision resolution, so it’s 4 bits less noise.
But accuracy is +/- 45 arcseconds which would make it 14400/turn. Not very good, to be honest. If we want to exceed DirectInput resolution at 450deg bumpstop - it has to be < +/- 12 arcseconds.
If we will use Rongde DVC48.3V9D-G0.3M1S-8192BM - that should be higher accuracy even it’s sin-cos - +2 clean bits. And with proper sin-cos to BISS converter - should be even better.
Another option is to take Rongde RDE94T30-20-1-SBG and make shaft (from 30 straight to 9mm tapper) and holder adapter. That would be 1M resolution (instead of 4M, but 7.5 arcsecond accuracy instead of 45). 4M from Rongde requires 60mm shaft encoders.
Alternatively can take resolute encoders http://www.renishaw.com/en/resolute-absolute-encoder-system-with-resa-rotary-angle-ring--10939 26bit would have 5.5 arcsecond accuracy. That is ideal option. RA26BAA052B05A
Reality is that we need as high CPR as possible to have filters work correctly (because ioni speed/acceleration calculations are too simple) but we need <12 arcsecond accuracy to get position data. No encoder that are widely used now can achieve that. And this biss-c from Yunghe is not real 22 bit - they just don’t have any encoders better than 45 arcsecond.
I will get one to test how acceleration graph looks with it on low-speed vibrations (or anyone willing to test and post?).
But with any effect based sim it should work better (iracing/ac should be placebo only if no filters in use). On top of that should be no noise anymore, lower drift and higher accuracy, no phasing issue. Could use much lighter ordinary UTP CAT5 cable.
Unfortunately, IONI doesn’t check CRC, so glitches still might come through. But it should be catching tracking error then.
I have a feeling that I should try to do converter of RS485 Tamagawa T-format into BISS RS422 format. Then we can use TS5700N8401 - direct fit encoder with 23 bit single-turn and 16 bit multi-turn. 80$.
https://www.tamagawa-seiki.com/products/rotaryencoder/absolute-multiturn.html
Hey @Mash, how are you deriving the absolute accuracy of these encoders? I have a Henglsgter Ad58 on my AKM, what kind of accuracy am I looking at there?
Some of them actually posting it in datasheets. Especially if it’s absolute encoder. And I measured noise on Simucube + Rongde 2048 SinCos. In your case, it’s clearly stated - Absolute accuracy ±35 arcseconds. Somewhat better than 45 of Yunghe. I don’t think you can have better than that with 2048 plates sincos under the hood. If your one is 22 bit - you should see a lot of position noise at least significant bits. They state repeatability of 7", so it would be last 5 bits noise, that they filter out. 13 bit version is guarantee to be accurate with all data, but for our application 22bits is better to calculate effects and filters.
What is your exact model number @smilen ? If you got 22bit BISS + sincos encoder - you really should not connect it in a sincos mode.
Yep, 35 was my understanding from the datasheets,
Looking at the encoder the model number looks to be AD58/0022AX.0XBIO.5652?
I’m currently running it at full 22 bit Biss resolution in granity.
