TX2 overheat BPT Interact 720

[FLjoyride]

Was working on figuring out the programming on this machine when the TX2 overheat error came up for the second time (axes were not on their limits this time). Wondering if it could be my high input voltages, but its adjusted so the output is a tad below the required voltage. Is there a way to figure out what is drawing extra current and if thats the problem? Also my coolant pump keeps tripping the breaker when I turn it on (doesn't even pump a little bit), maybe there is something else drawing current and the pump brings it above the max current rating?

One more - - anyone know the original bridgeport website where you download the communication software.. heidenhain directed it to me but I neglected to write it down, you go to www.archive.org and use the wayback machine to get the original bpt website where you can still download the communication software.

[machintek]

The old EZCAM had a utility that included COMM to Heidenhain. It was called EZUTLS.

I used a DOS shareware version of PROCOMM to communicate with Heidenhain, Fanuc and Bridgeport controls.

George

[FLjoyride]

Well I figured out the coolant pump tonight. It was the 5 prong female plug on the cord that was shorting out internally. I cut the plug off and put individual connectors on it temporarily and it works great now. I'll try to find one of those plugs in Grainger or maybe the local electrical hardware store.

Still have the problem with the axes drive transformer over heating.. everything works fine but after sitting on the machine and slowly learning the programming language (weird compared to G code) the error comes up as X axis overload or TX2 Overheat. TX2 is the transformer I had problems with configuring, and its definitely hot (not burning but still pretty hot). There is absolutely no load on the X axis.. other than to hold it in place. I am going to take of the drive motor cover and see if anything looks out of the ordinary. Figure I might as well see if I can get some lube in there on the way's too since it has some very audible noise when moving the X axis fast.

Also the machine uses a lot of air, even with nothing running. Seems to be leaking from around the spindle mostly.. probably going to end up taking that apart too. I am thinking I might as well take the whole machine apart and lube everything check connections and reassemble with loctite since there are a lot of loose bolts.

Thanks George for your help

[machintek]

Every modern spindle has a air purge set to about 15PSI. Due to the laws of physics and the right hand screw rule, the spindle turning creates a situation that has a tendency to suck coolant and chips into the spindle. The air purge is to counter act this.

George

[FLjoyride]

Question about the remote storage. TNC 355 manual (heidenhain says its basically the same as the 2500) indicates that the 17 pin RS-232 port can be hooked up to a tape reader or disk drive, but there is no indication or diagram on how to wire it to a com port on a computer. Has anyone ever done this before? How would I go about wiring the 17 pin connector on the controls to the 9 pin com port connector?

[machintek]

The heidenhain cassette holds one program per side and comes with a cable. I never saw their floppy but assume the same.
Some people on this forum use TNC_REMO which can be downloaded from the Heidenhain web site. Cable unknown.
I have used PROCOMM for years (DOS shareware) to communicate with Bridgeport, Fanuc and heidenhain.
There is a Bridgeport tech bulletin about communication to a Heidenhain. Need your email address.

George

[FLjoyride]

Thanks George for the tech bulletin. I called Fanuc today and we trouble shot the transformer overheat problem. As suspected, the input power voltages are most likely at fault. I am going to make some small changes to the transformer configuration and get my output voltage up to 195 or so rather than the 175 I have now to see if that will help. Its a bit high but the max is 203 before things could fry the axis drive circuitry. Can't wait to get milling on some parts!