AD75P1-S3 Error

[cltoh77 0]

I had installed a AD75P1-S3 on a Mitsubishi A2N Series PLC. After I power up, the PLC CPU can detect the AD75 module, nothing went wrong. After I sent the parameter to AD75, a error code "768" been detected. One more thing is the parameter set is same with the another 5 machines, it is a duplicate project. After I run through the manual, I cannot find this error code, did anybody encounter this problem before? Please help. Thanks. Best regards, C.L.Toh

[panic mode 246]

Hi C.L.Toh That's interesting. I'd like to help but I have some questions too. Don't mind if they apear basic, I simply don't know what is your experience with Mitsubishi. So here it goes: I would verify PLC parameters, disconnect load and reduce Servo program to a minimum - don't change AD75 parameters, just turn on the PC READY signal and check if you can jog. Observe I/O signals and check if the buffer memory tells you the same story. Error code for Axis1 is in buffer#807. Then gradually build on it until you get full functionality. See if anything here helps nad tell us how it went. (awsome emoticon...)

[cltoh77 0]

Hi Panic Mode, Sorry for the in-complete information. All along I am using Allen Bradley, Omron and Idec, and this is the second project I using Mitsubishi, the first one are A1S series, second one is this project. 1-- The AD75 is installed on the Slot 0. 2&3-- In the first scan, I use the "TO" command send the setting to AD75, if AD75 not installed or no detected, the PLC will promt a error. I encounter this problem before. After I turn ON the PC READY then the AD75 error occur. 4&5-- I read this error code from AD75 using "FROM" Command. Last few set are done by me too. I use the error code read from the module to do troubleshooting, so far so good. I hope the answers above can help you have a better picture for the problem. Your help are deeply appreciated. Best regards, C.L.Toh

[panic mode 246]

that's good but tiny step forward. you really need to re-read my first post, there is lot's of hints in it. to help you more I would need more information. wish you luck...

[cltoh77 0]

Hi all, The machine can operate already, most probably is the module faulty. :-p I replace the AD75, without changing anything, the error do not occur again. I will plug the card to the next machine, if same thing happen then I will exchange with the supplier, but have to wait for another 1 week, because the next machine still doing wiring. By the time, I will update the status. Panic Mode, thanks for your help. I do learn something from you reply. Hopefully can have more discussion with you. Best regards, C.L.toh

[Guest mykicks69]

If you took AD75 modulke out of rack and installed in another, all parameters may have been lost unless initialization code is in program or you are using flash memory.