Heidenhain programming ?

[bherr]

I'm running a Bridgeport Series II w/ Heidenhain TNC155b and I'm doing a circular pocket mill program. In the cycle def 5.1 it calls for the set-up clearance which I want at +.125, however when I place a + sign in the program it gives me a error as wrong sign programmed. If I place a - it will work. so the question is were do I set the Z axis spindle?? At zero or at +.125 or somewhere else? It seems that the Z spindle will sometimes go too deep and not the programmed depth of .448.

Help me please understand.

Also sometimes the spindle will just stop turning while milling a program. Not all the time, but sometimes. Any suggestions on this problem??

Thanks in advance for your assistance.

Ben Herr

[gus]

It wants to see all negative, just a quirk.

Remember that you must set the z to where you told it it is on this vintage control. IOW, if the set up clearance is .125, you must move to that number prior to cycle call. It will just assume you are there. It is handy when pocketing the same pocket or drilling the same hole in several 'z' heights. Only one cycle define.

Later controls with newer written cycles will want an absolute surface number.

[gus]

look out that you are not accidentally programming an M0 in random blocks. It will do it if you press 'enter' at the wrong time, instead of 'no enter', To get rid of it you may have to hit delete when that M function is highlighted

[gus]

I just tried it, if you try to run through a block with enter enter enter, it will error on the m function, and if you hit CE to clear the error, it leaves you with a M0. To avoid it you hit no enter or delete block, to fix it once done, you hit no enter. That is the only control issue I could think of. Or maybe if you have a tool call with a spindle speed of 0 or close, if you have a controlled spindle

everything else would be machine problems

[bherr]

Got the clearance problem worked out, but still getting the problem with the spindle stopping while the programming is running. I checked the voltages on the 3-phase and I'm getting 329.2, 329.4 and 226.4. could the difference be causing the spindle to drop out??

[gus]

1] are you on a converter?
2] what is your line voltage supposed to be?

[bherr]

Gus, I made a mistake its 235, 234, & 225, so that seems to be OK and I'm on a converter.
Ben

[gus]

So what "exactly" is the spindle failure mode?

There is a current sensor that may not appreciate being on the wild leg

[bherr]

Gus, Not quite sure what you mean by spindle mode. I'm running a circular pocket program that start and then about a minute or two into the program the spindle just stops, not error codes displayed. the * is flashing and if I hit the start cycle once or twice the program continues but the spindle is not turning. I've run these programs before with no problems, now this is happening.

Ben

[gus]

so what does it take to get the spindle going again?

remember, we all are not standing there, gotta tell everything to get some sorta helpful info

So the control stops running, in pause, so it knows the spindle has stopped. It is during the cycle call, so it is not a mis-programming, you can make it run so it isn't like a low oil level.....

So answer the above question and we can go from there


something has interrupted the spindle enable somewhere.....

[bherr]

Gus, the only way I can get it to run is stop the program entirely, clear it and then recall it back and start over again. Sometimes it does the same thing and then other times it will go the whole way thru without stopping. It's driving me crazy. I checked the oil level and it is good. Here's the program I'm using:

0 BEGIN PGM 1 INCH
1 TOOL DEF L 0.000 R +0.750
2 TOOL CALL 1 Z S 2500
3 X 0.000 Y0.000 Z0.000 R0 F80 M03
4 CYC DEF 5.0 CIRCULAR POCKET
5 CYC DEF 5.1 SET-UP -.125
6 CYC DEF 5.2 DEPTH -0.4480
7 CYC DEF 5.3 PECK -0.4480
8 CYC DEF 5.4 RADIUS 1.004
9 CYC DEF 5.5 FEED 80 DR-
10 CYC CALL
11 LIX 0.00 IY 0.00 IZ +0.125 R0 F80 M03
12 CC X0.00 Y 0.00
13 LP PR+1.600 PA +0.000 RL F80 M03
14 LZ -.4480 RL F80 M03
15 LP PR+1.1240 PA 0.00 RL F80 M03
16 CP PA+720.00 DR- RL F80 M03
17 X 0.00 Y 0.00 Z +.125
18 STOP M05
19 END PGM 1

Like I said sometimes it runs with no problems and then the next time it won't.

Ben

[gridley51]

Ben,is it stopping at the same bit in the programme each time or is it random?
Mark.