"ERROR" in the display LCD of AC700 F
Dear Sumit Gargav,
I was perfectly working with abb's freelance controller "AC 700F" but today the LCD displayed "error" and the "ERR" Led keep blinking. I don't know what can I do to fix it. I thaught of reseting the CPU (PM 783F) or erasing the user program but I didn't find the way to do so.
Please can you help me.
Voted best answer
First of all what went wrong and brought this three letter ERR on LCD :) any idea ? if no
Go online with controller and in comissioning mode check in project tree against D-PS resource, what is status ? Right click > header check status what message it displays
Or check if any task went into error state ?
It could be programming error or HW error or something else...
Which Freelance version/Firmware version controller running with ?
Controller is running any process plant or at non-critical site ? if running process then
Do you have last latest project backup(downloaded to controller) saved or exported on system ? If yes,
Controller AC 700F is having back up battery ? If yes,
Remove the back up battery, power off controller atleast for more then 5sec and power on again, resource should come in no operating system status. in that case download firmware from configure tool and then resource should come into running status or version error status. then make whole station down load from project tree.
Controller should come into running mode. if it again goes into ERR mode there might be possibility of errornous program/logic/task. pls reply back if not resolved...