MODULE FAULT IN RACK A2 SLOT 2.....7

justo

Member
Join Date
Oct 2024
Location
Kampala
Posts
3
Hi team I need some help my engines have shutdwon twice on module fault in rack A2 slot 2... 7, and we are able to restart again without doing another, what would be causing this problem we have modicon quantum CPU 434 12 PLC and its creating for a lot of downtime because it comes un expected.
 
What sort of engines do you operate with this control system ?

Modicon Quantum have been largely obsolete for 20 years, but they are used on hundreds of thousands of different applications around the world. If you're running a shipboard or offshore or power generation application, you need to consult with experts on your machinery, or with experts on troubleshooting the Quantum and its I/O networking and modules.
 
I presume this setup has more than one rack(backplane). As the error is referring to rack "A2" i would have a look at the cable between the main rack and 2nd rack and the backplane terminators. Also maybe the power supply on the 2nd rack could be failing, or some short circuit on a input or output on the 2nd rack could be pulling the power supply down occasionally if proper protection for the said inputs or outputs is not in place. But all this is just speculation as there could be a lot of other things causing this
 

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