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How about a garbage character somewhere in the file Bill? Lower case n? Keep shortening it 5 lines at a time until it goes?

This may just be a failure of the 24V power supply that runs the logic on the drives. Check the voltage on the blue wires.

My guess it that there's a default configuration for keyboard, CRT, and basic I/O. Do you agree Memoryman? The connection, description, and maintenance manuals should give you some guidance. I've not...

Regarding the leadscrew comp, that didn't come until later - the 5M never had it.

OK, I see that you have the famed Black Box used for the older controls and you have the tapered front eprom reader/writer. Not sure what PMC version the 15MA uses however. I'd start by firing up the...

As Memoryman said (Hi) the boxes to read the eproms are extremely rare. Also, the 15MA has eproms and are EXTREMELY tedious to program (about one hour for "load, modify, erase, write" cycle). The PMC...

Capt Bob,
The parameter 0070, bit 7 (the one on the far left) listed in the 0MC Parameter manual is to control whether the control outputs LF (line feed) or LF AND CR( carriage return) in ISO...

A good customer of ours lost parameters on their SJ-20MC. This lathe has live tooling, a C-Axis, and a Duplomatic turret. After a week of reconstructing various parameters, they realize that the Data...

Older Fanucs have a way of zeroing in the morning that is a little difficult to understand. On a Fanuc 6 control, the FIRST homing attempt after power up is different from all others. Encoders that...

John,
Write down the state of all of the jumpers on the board. They will mostly be the same. Maybe one or two different. Swap the entire box, not just the top board. The grey Honda plugs on the...

John,
On the premise that the vibration heated up and damaged the drive (VCU), it's probably time to swap VCU's (if they are the same), or get yours tested somewhere. If they are the same (you need...

The vibration is a clue. One of the classic problems with most Yellow Cap motors from Fanuc is gradual wear between the motor shaft and the brass coupling that connects it to the encoder. This wear,...

Are both of the Velocity Control Units (the boxes where the HCAL light is) the same size? The Fanuc number on the very bottom tells the size. A06B-6047-H002 or 3 would be my guess.
Warren
Uptime...

It is unlikely that all four switches failed together. I would have someone check the wiring at the joint where it flexes the most, where the arm attaches to the machine. That is a common place for...

Yes.

Here's a picture of the screen you want. Press this button until the Diagnostics screen appears. Then, look for the X0004 line.
Good luck,
Warren
Uptime Electronics, Inc.225472

Pumas are prone to coolant contamination in the area where the Q switch attaches to the arm. Sometimes the wire breaks where the arm attaches to the machine, since that is where it bends the most....

I doubt the lube pump will pump while the machine is in an alarm state. Still, it would be a good idea to expose the ballscrew and see if it turns freely.
Warren
Uptime Electronics, Inc.

The HCAL alarm on this system stands for "High Current Alarm" and can be trouble. I would start by pulling a motor brush and taking a look at that and the motor's commutator. Smell it. If it smells...

If you have 4 and 5 jumpered and 6,8,20 jumpered, there shouldn't be any alarms. You might check your null modem first or check it on another Fanuc control before declaring the port bad. All 10...

Did you also re-load the Diagnostics in the 300 area when you restored the parameters. This is the area where the timers, counters, and keep relays (software controlled latching relays) are stored on...

We've found ourselves working on a few lately. We're in L.A. Also, these guys:
Bourn & Koch Gear Shaping Machines -

seem to have purchased the remains of the old company. We purchased some lube...

Looks like you have the correct hardware. I missed the fact that you have 6050 drives, not 6047 in an earlier post. They are both controlled with an analog velocity command signal.

I believe the...

Be careful - there were two Fanuc 11's made and they really should have renamed the newer one. The newer one that these boards are from is the DIGITAL version and WON'T work with the 6047 series of...

Sounds like you're pretty close. The motor and VCU don't necessarily need to match the X and Y sizes. They do need to be of the same vintage and type. The parameter manual should be available from...

Aram,

Sorry for being vague -it's been a long time since I've done it.

Yes, press the number 4 and input to get to the next question.

I think the answer to the question is "Y" input.
...

Aram,
To disable the soft limits temporarily on a 10M:

1) Power on the control while holding the Period and Minus keys simultaneously.
2) This invokes the IPL menu, which gives several choices....

What memoryman (Hi Bill) is alluding to is that reloading a 10 control is, by design, VERY difficult. To quote my instructor when I attended one of the first 10/11 classes at the General Numeric HQ...

I think you need to find a good industrial electrician and have him check your taps to make sure the output voltage is correct. It will be money WELL spent. I've had to sort this kind of thing out...

The Fanuc 6, 10,11 and others with incremental encoders zero in the following sequence:

1) After you begin the zeroing move, the motion accelerates. When it gets to a certain speed, it reads the...