Retrofiting Scm record 220

I have this idea about hacking into the drive between the logic side and the isolation to main transistor's and run off a mesa card and hal. Has anybody tried something like that. I have a fanuc robot project that would benefit from this also.

Hi....I am new to this forum. I have a faulty NUM controller card for the SCM Record 220.  I can get a service exchange card from NUM for about $1500. Seems a lot. Is there any other option? We believe the problem is the card because when we replaced the card with one from another machine, it worked. The part number is 0204204478

While we do have an older SCM CNC machine here (and it is still running it's original control.) I am far from familiar enough with them to be able to tell you what your bad part even is just from the part number. What does the part do, what does it look like?

Also even though this thread was about helping someone retrofitting a Record 220 like yours, doesn't necessarily mean that it was the same or used the same control hardware. SCM made these machines over a long time period and offered many different options and fitted different controls over the years.

Hi there,

I recently bought very cheap record 220, but in non working condition since battery is dead in num 1040 controller.
Already have replacement BOB but now thinking why not try to fix original unit since everything is ready for it and machine also have 4th axis(that dont accept step/dir) and drilling unit.
Should I try to repair Num or take a time to connect everything with new BoB that would probably not been able to drive all in/outs and 4.axis?

What BOB are you talking about?
Normal BOB is for parallel port with 12 outputs and 5 inputs, while this machine from what it says here needs much, much more.
Also normal BOB will not work at all for analog servo systems, and most probably the machines uses those.
Still, do upload the pictures here so we can have a look.

 Its uc300eth-max, about 20output and 45input.
Machine still have much more but its certanly enough if make connections more simply.

Thing is am not sure should I mess up factory instalations or maybe its better to get controller fixed and just threw it in and go, would benefit from 4.axis which motor is driven analog (tool turret maybe too) and I guess its professional nc. and is probably better quality and reliability that of diy approach.

On the other hand with new bob would have more possibility, like 4.axis on table rotation and add diode laser or plasma torch.

Have already tried those Yaskawa servos and are working with step/dir signal, just had some problem with endless motor vibration on X axis with smallest move of shaft.
Have swap it with Y drive and they work fine, its only happening with X drive on X servo.

Am not worried about tools turret since if cant work with step/dir its a small motor and probably have some stepper laying around that can replace it.

Here is pic of the drive for the 4.axis (tilting spindle head on sides).
Midi Maestro 140x8/16