Clear Major Fault Compactlogix L32E

[gab2005]

Hi, I have a problem with a Compactlogix L32E, this controller goes to Major Fault sometimes, I need it clear this fault by Controller Fault Handler subroutine, How I do this?, I just read about this and I dont understanding GSV and SSV instruction, code fault showed is: Type 03 , Code 16
Someone haves a subroutine example for this fault code?
Thanks.!

 

[TConnolly]

The fault code indicates that a required IO module connection failed.
Check that the io module is properly connected and that the modules are properly mounted and latched together. If this fault is occuring on a CompactLogix you probably need to have the controller fault.

 

[TheStarr]

Eliminate the fault, then you won't have to handle it in the program.

We have an L32E that would fault and also drop the program.

A good line filter on the PLC supply power to supress voltage spikes solved all of our problems.

 

[Bitmore]

I ran into the same problem. Do you have an analog Resistance or TC/Milli Volt card installed? There is a new firmware update for that problem, I think it's free. Sorry I don't have the link.
Where is that "football headed little guy" when you need him.

Bitmore

 

[introl]

Hi, I have a problem with a Compactlogix L32E, this controller goes to Major Fault sometimes, I need it clear this fault by Controller Fault Handler subroutine, How I do this?, I just read about this and I dont understanding GSV and SSV instruction, code fault showed is: Type 03 , Code 16
Someone haves a subroutine example for this fault code?
Thanks.!

right click the I/O modules in rslogix 5000 and uncheck the "major fault when I/O module loses communication with processor" or something like that, you'll find it in the connection tab of the properties for the particular I/O module. This occurs when u lose power to the unit and or any catastrophic events that may occur.
let me know if i was clear enough. the "" is not exactly same but u get the message i hope.

cool

 

[kentuckytech]

I had this happening on a L32e also.It would happen if the machine was powered down for maintenance work and then powered back up the processor would fault, sometimes even dump the program.It was a new machine so the company sent us a new processor and i installed it but the same thing kept happening.I investigated further and finally figured out it was because of a 2channel analog output card with the internal switch set to external power. What was happening was that the controller would power up and do its check for i/o cards before the external power was up and stable so the processor would detect no voltage and fault. I simply flipped the switch to internal power and the problem went away. I also could have installed a time delay relay to delay the processor powerup to give the external power supply time to stablize but everything did ok with the internal buss power so i left it alone.