PM864A redundant shut down

There is a PM864A thats shut down suddenly (like in the photo attached). I cant find anything in the redundant cpu log because it erases when the error occurs. Can somebody help me?

Thanks,

Joao Paulo.

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Joao Rank: 2407

Asked 4 years ago

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From the Attach screen shot its clear that Controller base plate not getting the power.Base plate fuse may gone.

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Thirumalai.M Rank: 396

Answered 4 years ago

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Hello,

The picture of CPU shows no any LED lighting - may be there some problem in power supply. Please check +24VDC line and also external battery connection.

Is the CPU starts after restart, is the redundant CPU switch0over and take control after the fault?

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by Joao Rank: 2407 on 8/30/2016 7:15:52 AM | Like (0) | Report

Hello,

I already checked the power supply and it doesnt have any problems. The CPU starts normaly after a restart. The redundatn CPU take control after the fault. I already replaced the CPU and the problem persists.

Best regards.

kstoilov

Rank: 5 on 8/30/2016 9:50:07 AM | Like (0) | Report

If the CPU is OK, you can have many different issues it to go to fault status - here are some typical:
-both Ethernet connections to the CPU are disconnected
-the CPU loses connection to the I/O modules

kstoilov

Rank: 5 on 8/30/2016 9:54:41 AM | Like (0) | Report

From your pictures I can see there are not I/O, connected by FO to the CPU (direct) - may be you are using Profibus. Also I can see almost all CP's are connected to the first CPU - most probably Profibus is there. Please send a scatch of your system configuration

kstoilov

Rank: 5 on 8/30/2016 9:55:46 AM | Like (0) | Report

May be you need to have one CP854 to the first CPU and the second CP to the second CPU? I can see that you don't have BC810

by Joao Rank: 2407 on 9/1/2016 10:57:10 AM | Like (0) | Report

We dont have BC810 for this controller. Im sending two pictures: upper controller and under controller.

by admin Rank: 46 on 9/1/2016 8:17:06 PM | Like (0) | Report

please attach file via next answer, in answer area select 'pin' attachment symbol and pick up file from the local drive, press attach and it's done.

by Joao Rank: 2407 on 9/6/2016 12:26:02 PM | Like (0) | Report

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kstoilov

Rank: 5

Answered 4 years ago

Check the controller is getting 24VDC. If it is then the fuse in the controller base plate is gone...

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Thirumalai.M Rank: 396

Answered 4 years ago

The pictures.

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Joao Rank: 2407

Answered 4 years ago

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PM864A redundant shut down

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