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Well, I've at least made some progress. I was able to trace out the circuit enough to figure out that I needed to provide power to the coil on the COR relay (to replicate the Power button on the...

Hello,

I have successfully replaced most of the Ultimax-II control functions with a LinuxCNC/Mesa conversion. My goal is/was to perform this conversion entirely at the connectors to the dual...

I believe that I have it figured out. My X-axis problem was a red-haring. Apparently, I bumped the bulkhead connector for that axis going into the control cabinet as I was swapping the encoder from...

OK, so I am a little embarrassed. When I was checking the encoder signal on the AC1-P1 and AC2-P1 connectors, I inadvertently swapped the DB-25 covers (that had the labels on them). So, swapping...

Thanks, Bloke. That was my first thought, but I've checked and re-checked and I have the cables in their proper places (consistent with your description). Is there anything else that could cause...

Sadly, I'm going from bad to worse with this. I swapped the encoders for the Z and Y axis and got the same behavior. I removed an reseated the Dual Axis boards a few more times, cleaned the...

Thanks, Bloke. I've checked all that. As I say, I can see that the encoder is producing a square wave that increases frequency with motor speed. I haven't been able to find any specs for the...

I have a KM-3, with Ultimax 2 controls. I am having trouble with the z-axis. Here are the symptoms:


On occasion, the z axis will head at the current speed towards + or - Z, well beyond its...

It was the bolts labeled "B" and the pins labeled "b". I was thrown off originally because when I took the cap off of the first "b" hole, all I could see was a smooth surface down about five inches...

Sorry about that. How's this?

-joel
224172

I'm trying to align the turret on my 4NE-600. It is rotated up about 0.100" on the centerline of the ID tools (it took a crash). I'm having trouble figuring out which bolts might constitute an...

Tools,

I ended up with a bad thyristor module (an EMGG07-08). Assuming that you've checked all of your circuit breakers and fuses (including the three big Fuji 75A rapid-blow fuses), you should...

I need to correct one statement in my earlier post. It turns out that my carriage is moving faster than I thought. I timed it from corner to corner on a G00 move and it was going just under 300...

I've now had my Lightning CNC for two weeks and can still say that I'm very happy with it. I've now cut something approaching a thousand inches with the machine (all in 16 gauge steel). Here are a...

I just got my Lightning CNC M6 (2'x3' table) up and running this weekend and thought I'd share my experience as there seems to be much commentary here about the company, but not necessarily about the...

Check the line voltages going into the machine. The electrician that installed the machine in its new location installed a buck-boost transformer from the old location, but with the line available,...

My lathe has the motor alarm LED on and I need help! It was running fine, in the middle of a MDI-commanded facing operation (very light cut) when the spindle stopped and the alarm light came on.
...

Thanks, Al. I think that I've found what I'm looking for at: Fanuc 6_RS232. It shows the pinout for the 20-pin Honda Connector.

-joel

I have a Hitachi Seiki 4NE-600 lathe with Fanuc 6T controls. The front cabinet has a Honda connector below the tape reader, presumably for the RS232 serial communication. Does anyone have the...

Thanks for the response. Actually, you are right that the 3 phase was hooked up incorrectly and the spindle *was* running backwards. However, we've since fixed that and still have the same servo...

This is an old question from a post that I made many months ago, but I still have the problem. I'm hoping that by posting some additional information, I can get some help getting me off of...

I have a KM-3 with Ultimax II controls (v8.60) that is acting up. I was milling a part that had a lot of retracts and after a couple of hours of working fine, it plunged the spindle rather violently...

My KM3-P has a new problem after a cross-country move. When I turn the spindle on, it stops after about one revolution with a servo error. I've reseated all of the cards and connectors, checked the...

I have a KM3 with a problem. It has been working fine, but in the middle of boring a hole today, the spindle stopped. There was no particular fault right away, but within a few seconds and before I...

Well, lacking the time and expertise to troubleshoot my graphics display, I bit the bullet and purchased a new (used) unit and installed it into my max-2 console. It worked just fine.

So, now I...

Thanks, Bloke. I just checked and the ribbon cables (all) have brown on number 1 pin.

According to the troubleshooting table in my manual, I should check the LED on the fron panel cable connect...

UPDATE: I opened up the console, cleaned out all of the swarf, jiggled all the connectors, then did the same for the electronics cabinet. Put it all back together and now the text CRT comes on, but...

I turned my KM3P on today after a couple of weeks of nonuse and neither of the displays (text or graphics) came on. I'm pretty sure I saw/smelled smoke coming from the Ultimax unit before I turned...

Great, thanks! I got my USB-Serial adaptor in today and was able to run the Predator Drip Feed from my BobCAD to run the mill (previously I was stuck with an old computer that had a serial port, but...

I have my PC talking to my KM3 swimmingly--well almost. I can upload NC programs to it all day long at 19.2Kbps without error. However, when I'm machining a program that is greater than its memory...