EEPROM Problems

[inquisitive lobster]

Hi,

Firstly thank you for taking the time to read this post, it is highly appreciated.

As the title says, I have a problem with an EEPROM.

7 pins/legs have been broken off from an EEPROM making it unreadable, but there are still metal pieces at the sides where it can be soldered.

Does anyone know of any professional places in Thailand that can repair the EEPROM and transfer the information to a new EEPROM?

The EEPROM cannot be replaced due to the information stored on it.

Any suggestions regarding the EEPROM you may have will be highly appreciated.

Warm Regards,

IL

[Crossy]

Moving to IT.

Do you know the part number of your device? If you're not sure, post a clear photo of the device markings.

Where are you in Thailand?

[JaiMaai]

Do you still have the broken bits of leg? It may be possible to somehow tack solder them into a a DIL socket but it would be lot easier to tell from a photo as Crossy said.

[inquisitive lobster]

Hi,

Thanks for the replies.

The eprom is from an old Parvex Drive.

See attached picture.

I usually travel alot between Bangkok and Rayong Areas.

[gandalf12]

Better if you can get get another EEPROM flashed for you. Soldering the pins can be done but it can lead to problems

[Crossy]

OK it's not an EEPROM it's an EPROM based microcontroller.

http://pdf.datasheetcatalog.com/datasheets2/12/1289755_1.pdf

It also looks like someone has had a go at it already

It's from a GEC Alsthom Parvex motor drive and therefore contains copyright data. There's a strong possibility that the security bits have been set so it will be impossible to read the EPROM data anyway.

Have you tried contacting GEC Alsthom for a spare device? Or possibly the data if the kit is old enough that they don't mind letting it out.

Failing that, you will need to talk to a development lab with the kit to read / program these devices, try your local university.

They may of course baulk at reading copyright data (if they can).

The fact that it's a ceramic package makes life more difficult as it will be impossible to shave back the encapsulation to solder on some tails, a DIL clip may do the trick.

EDIT This has the potential for falling under the "illegal activity" rule, I'm not going to close it right now, but our OP needs to justify why he needs to duplicate a copyright device. The device does not contain any E² memory, so it doesn't have any motor profile data that would be useful.

EDIT 2 at least the (blank of course) device is still available, $33 a pop

EDIT 3 Other than that I think you're going to be stuck with scouring the second-hand market for a used drive with a serviceable processor, or (hopefully not 'coz it will be a nightmare) replacing the drive with a modern equivalent.

[inquisitive lobster]

Hi Everyone,

Thanks for all the great answers.

To clear up a few things;

I have already tried to contact the company for the Eprom, but they told me that a new one will not have the program on it as they do not supply the program for the EPROM.

This is done by the company who programs the drive.....

I contacted the company that programs the drive and they told me that they will not be able to help with the Eprom as they do not have the program.....

Hence the reason why I am looking to repair/Reprogram this EPROM.

[Aussie69]

http://www.cnc-shopping.co.uk/parvex-alsthom-c-89.html

Is this EEPROM from a VSD? Variable Speed Drives (VFDs) are not really that expensive these days (depending on the size of motor). They have so much functionality that they practically do away with having to build a motor cubicle.

[inquisitive lobster]

http://www.cnc-shopping.co.uk/parvex-alsthom-c-89.html

Is this EEPROM from a VSD? Variable Speed Drives (VFDs) are not really that expensive these days (depending on the size of motor). They have so much functionality that they practically do away with having to build a motor cubicle.

Hi,

Firstly thanks for the response.

Secondly, thank you very much for this website, this has been tremendously helpful.

Finally, due to circumstances involving a Native Company that specializes in fixing Servo Drives and Inverter Drives, they had "unfortunately lost" the plastic covering for this board.

That plastic covering has all the information regarding the model number of this drive.

It is about 3 drives that are connected together, and they "unfortunately lost" all three of the plastic coverings.

All I can tell you is it has FELX302265GP2 and FELX302265GP3 written on the side of the board and it has CMS2 45/90 LC840TF 10V 2200CR on a sticker on a different part of the board.