IKEGAI TU15 Fanuc O-T 998 ROM Parity: ROM No. 801 System Alarm

[rlarios]

I was called to see this machine showing the system alarm 998 ROM Parity: ROM No. 801. The system board P/N: A16B-1010-0281/03A.

According to Fanuc O-T manual, 801 is the ROM that may be corrupted or damaged. The only place where I found that ROM number was in an EPROM that is in a cartridge that is attached to this system board. Cartridge P/N: A02B-0091-C111. The owner of this machine had bought another cartridge with same P/N from eBay which once installed shows same System Alarm. I already read the contents of both cartridges and they are not the same.

I checked with CookeCNC and they told me that this cartridge usually contains data that is machine specific and only the Machine Tool manufacturer may have it. However, IKEGAI seems to be no longer in business. I wonder if anyone of you guys has this same machine where we could get the EPROMS contents from.

I read both EPROMs using a MiniPro Universal Programmer vrs. 6.60. Chksum for 801 chip was 0x0054 3364. Chksum for 802 chip was 0x0054 7D96 per MiniPro software.

Please, if anybody can help, let me know.

Thanks in advance

Rafael Larios

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[oetkbyentc]

That cassette stores a custom program (i.e Macro Executer) created by the OEM or a 3rd party. That is why the purchased cassette and original's contents do not match. They are not interchangeable.
You would need to burn the original contents onto the new cassette assuming it is not corrupt.

If you unplug that cassette will the control boot past the system alarm?
Specifically what series 0 control are you working on?
Can you advise on the led status on the mother board?

[rlarios]

That cassette stores a custom program (i.e Macro Executer) created by the OEM or a 3rd party. That is why the purchased cassette and original's contents do not match. They are not interchangeable.
You would need to burn the original contents onto the new cassette assuming it is not corrupt.

If you unplug that cassette will the control boot past the system alarm?
Specifically what series 0 control are you working on?
Can you advise on the led status on the mother board?

I just got brand new EPROMs to burn the contents of original cassette. I'll let you know what results I get.

If cassette is not in place, we get a Watchdog alarm.

We used to get 911 RAM parity alarm. After RAM was replaced, no more RAM parity alarms.

I'll check later this week board status LEDs, and 0 control version.

Thanks

Rafael

[rlarios]

That cassette stores a custom program (i.e Macro Executer) created by the OEM or a 3rd party. That is why the purchased cassette and original's contents do not match. They are not interchangeable.
You would need to burn the original contents onto the new cassette assuming it is not corrupt.

If you unplug that cassette will the control boot past the system alarm?
Specifically what series 0 control are you working on?


Can you advise on the led status on the mother board?

I was finally able to go back to machine.


With cassette in, only green LED on mother board lights up with 998 ROM Parity error display. When cassette is out, green and red LEDs come on showing the watchdog screen. By the way, when the cassette bough on eBay is in, it also shows the Watchdog screen. I made a mistake about Alarm message with this other cassette when I started this thread.

It seems to me that the numbers 0615-04 shown on top right may be software/firmware version of system.

I reviewed the contents of cassette EPROMS using the EPROM programmer software. I noticed that every block of 4KB was repeated on the following 4KB block. I copied the contents of both EPROMs and ran a comparison using a software tool I found online, and sure enough, every block of 4 KB was repeated and was identical to the next block in both EPROMs. I was hoping to find a difference, but none was found. I am beginning to think that maybe these EPROMs are not the ones being referred to by the 998 ROM 801 Parity alarm.

I also checked the mother board's EPROMs contents but they didn't follow this repeated block pattern.

I hope somebody has an idea on what to look at. I will see if this forum allows me to post the contents of both EPROMs.

Regards

rlarios

[memoryman]

The ROM which gives the alarm is located on the motherboard, to the left of the I/O socket; it's likely the one in the socket F81.
0615-04 is indeed to system software version.

[rlarios]

The ROM which gives the alarm is located on the motherboard, to the left of the I/O socket; it's likely the one in the socket F81.
0615-04 is indeed to system software version.

Memoryman,

Thanks for your reply!

Socket F81 is empty. So is socket FA1 right above it. Sockets FE1 and FC1 between I/O connector and FA1 and F81 seem to contain system software.

Now I am puzzled. Could this system be incomplete? Are FA1 and F81 required to be on board? If anybody has access to one of these machines to verify what EPROMs it should have, please let me know.

I really appreciate all the help. If anybody has the complete set for this machine. I am willing to pay for it.

rlarios

[rlarios]

This is another picture showing the entire area where these EPROMs are.

[bumzag]

The ROM which gives the alarm is located on the motherboard, to the left of the I/O socket; it's likely the one in the socket F81.
0615-04 is indeed to system software version.

I don't believe it's the F81 ROM giving the alarm if the socket is empty, I would think the alarm screen would show F81 indicating the ROM number, just like it shows OE1 when the main system software ROM is at fault.

Memoryman,

Thanks for your reply!

Socket F81 is empty. So is socket FA1 right above it. Sockets FE1 and FC1 between I/O connector and FA1 and F81 seem to contain system software.

Now I am puzzled. Could this system be incomplete? Are FA1 and F81 required to be on board? If anybody has access to one of these machines to verify what EPROMs it should have, please let me know.

I really appreciate all the help. If anybody has the complete set for this machine. I am willing to pay for it.

rlarios

Like memoryman stated earlier, that cassette is some sort of custom macro, "Macro Cassette A" based on the part number. The A02B-0091-C111 part number is a FANUC part. If the contents of the 801 EEPROM are indeed corrupted, it's possible to have FANUC re-burn that data. You'll have to call them up of course

[rlarios]

Bumzag and Memoryman,

I have included the pictures of EPROMs inside Macro Cassette. The EPROMs with handwritten labels on are the ones that came in the original Cassette. Whatever could have been typed on them has faded away with time. The ones with typed numbers on (0A3A/802E and 0A3A/801E) are the ones that came in the Cassette bough on eBay. I had thought this Parity ROM 801 message was referring to this 801E EPROM.

Like memoryman stated earlier, that cassette is some sort of custom macro, "Macro Cassette A" based on the part number. The A02B-0091-C111 part number is a FANUC part. If the contents of the 801 EEPROM are indeed corrupted, it's possible to have FANUC re-burn that data. You'll have to call them up of course

According to Charlie Cooke -from CookeCNC-, the contents of Macro Cassette is responsibility of the Tool Manufacturer, that's why contents are not the same on different machines in spite of being same Fanuc Part Number A02B-0091-C111. I will try Fanuc, anyway. Although, I still hope somebody in the forum has this machine kicking around to share the contents.

Thanks for your comments.

[Hardplates]

Memoryman,

Thanks for your reply!

Socket F81 is empty. So is socket FA1 right above it. Sockets FE1 and FC1 between I/O connector and FA1 and F81 seem to contain system software.

Now I am puzzled. Could this system be incomplete? Are FA1 and F81 required to be on board? If anybody has access to one of these machines to verify what EPROMs it should have, please let me know.

I really appreciate all the help. If anybody has the complete set for this machine. I am willing to pay for it.

rlarios

FA1 is for option assembly A2 and F81 is for option assembly A3. It is highly unlikely they were ever populated

615 is the software and indicates it is a model B control.

Do you have a backup of parameters and PMC param? If so what is 912.7?

Provided you have a backup I would reinitialize the memory. If the parity alarm is gone I would reload all parameters except 912.7. If all is well at this point then I would set 912.7. If the parity alarm comes back that confirms the issue is inside the macro cassette.

[Hardplates]

I don't believe it's the F81 ROM giving the alarm if the socket is empty, I would think the alarm screen would show F81 indicating the ROM number, just like it shows OE1 when the main system software ROM is at fault.

OE1 and OE2 parity are an issue with the ladder EPROMS not the software

[rlarios]

Everytime we start this machine with Reset, same 998 ROM Parity No. 801 Alarm comes up. We cannot go past this point. No way we can re-enter parameters.

However, if anybody has the contents of these EPROMs, I have attached the contents of both EPROMs in the original Cassette module in case anybody has them in order to do a comparison with known good ones.

Thanks again to all with your comments.

rlarios

[bumzag]

OE1 and OE2 parity are an issue with the ladder EPROMS not the software

I believe you are correct, that’s my bad

[Hardplates]

I would isolate the source of the parity issue before attempting to locate difficult to find macros.

[memoryman]

FA1 is the eprom containing option A1; F81 is the eprom containing option A2; neither appear to be installed. That make me wonder if you have an option enable that requires A2 eprom. Can you post parameters 900 and above?

[Hardplates]

FA1 is the eprom containing option A1; F81 is the eprom containing option A2; neither appear to be installed. That make me wonder if you have an option enable that requires A2 eprom. Can you post parameters 900 and above?

While that is true of an OT-c I'm pretty sure on a model B the basic option only consisted of 1 eprom FE1. FC1 for option assembly A1, FA1 for option assembly A2 and F81 for option assembly A3.

Just to double check I looked on a model B board that has only FE1 and FC1. This machine has user macro B which requires option assembly A1.

[memoryman]

'While that is true of an OT-c'
That is correct, but the Fanuc option database doesn't list the locations for software 0615 (0T-B digital).
Option assembly A3 is in location 201 on the memory board, but 0615 has no option assembly A3 listed..

[rlarios]

FA1 is the eprom containing option A1; F81 is the eprom containing option A2; neither appear to be installed. That make me wonder if you have an option enable that requires A2 eprom. Can you post parameters 900 and above?

I have already requested the parameter list. I'll post them as soon as I get them.

Thanks

[rlarios]

FA1 is the eprom containing option A1; F81 is the eprom containing option A2; neither appear to be installed. That make me wonder if you have an option enable that requires A2 eprom. Can you post parameters 900 and above?

I finally got the parameters list.

Please review.

rlarios

[memoryman]

Turn off 904 bit 0; it is the option for Japanese language.