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IC693CPU363 How-to Troubleshoot & Test GE Fanuc PLC Training Series 90-30 CPU

Introduction: GE Fanuc IC693CPU363 Troubleshooting Guide

This troubleshooting guide is a test of an IC693CPU363 90-30 processor attached to an IC693CHS397 5-slot rack which is empty. Slots 2 through 5 need to be empty for this test as it’s just a test on the processor. The processor is being powered by an IC693PWR330 high capacity power supply.

Step 1: Power Up & Assess LED Status

The first thing you are going to do in the test is power it up and you are looking for an OK light, a solid OK light, which indicates to you that the processor is ready for a test and there’s nothing immediately wrong with the processor. Now if you don’t have a light here or if your light is blinking then it’s very likely that you have a major problem with the processor and you won’t be able to finish this test. If this is the case, please see the end of this post for links to parts and service.
1-OK-Light
 

Step 2: Setup Configuration in Proficy Machine Edition

Now that it’s powered up you are going to connect up to the processor in Proficy Machine Edition and the first thing you are going to do is go into Programmer Mode and go to Target > Offline Commands and Clear only Controller Fault Table and I/O Fault Table the bottom two selections Controller Fault Table and I/O Fault Table you don’t want to clear anything else because there may be information that you don’t want to lose in the Memory so you are going to go ahead and say OK to that and keep in mind that under the main rack where the software configuration is for your hardware configuration slots 2 through 5 need to be empty as illustrated here and that way you won’t make any faults.

Step 3: Download and Run

Now you are going to go ahead and download and Run this information and what you are trying to do here is get the processor into run mode. If you can get the processor into run mode it’s likely that it’s a good working processor. If it can’t go into run mode then you know that there’s a problem.
So next it will be asking you what to download to the controller. You want to download hardware configuration and logic so you are going to OK that and let this build continue. Now keep in mind you see the ON/OFF switch is in the off position (see below) and there’s a reason for that which will be discussed below.
switch-off

Step 4: The Two Functions of the ON/OFF Switch

The switch (see above) does two functions, it is a memory protect switch when it’s on the memory is protected the second it’s an I/O enabled switch.
So it’s asking you if you want to enable any outputs, yes, but it shouldn’t do that until you actually physically turn the switch so you are going to get an error that says “The controller is not in run mode after you attempted to start it. This may be due to the Run/Stop switch position application” which is true. So now when you turn this key you should get a run light. If you do get the green LED Run light on then you know that this is functioning properly 
2-run-LED-ON
 

Step 5: Testing Ports 1 & 2

So the next two things you want to test of course are Port 2 and Port 1.
testing-ports-1-and-2
You do it in kind of reverse order because you already have this AS693SNP232 cable working that you are using so flip it around and plug it into Port 2 and you are looking for the Port 2 LED to start blinking and if it is you know that’s a functioning port.
Port 1 Test
Next is Port 1 and you take part number IC693CBL316, which looks kind of like a phone jack (see above) and on the other side there’s a serial port. You are going to plug into your computer. So go ahead and plug into port 1 and on the other side you are going to be plugging into your computer and of course you are looking for the LED to start blinking for port 1 to tell you that it’s functioning. If it is functioning that pretty much concludes the test.

Step 6: Additional Steps if Necessary

If this is a processor that you feel is giving you a problem then you should let in run overnight or over a couple days, usually over a weekend, and what you are trying to make sure is that this processor is going to keep itself in run mode and to determine the reason if it comes out of Run Mode.
When you come in a couple days and this LED is off and it wasn’t able to keep itself in run mode what then go into Proficy Machine Edition under Target sub category Diagnostics. Your Info Viewer will present you a fault table and the fault table will tell you why it jumped out of run mode.
Sometimes the explanations in the fault table are not very understandable and sometimes they are. But if it does kick itself out of run mode you have a problem with the processor.

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This entry was posted on June 4th, 2015 and is filed under GE Fanuc, Troubleshooting Guide. Both comments and pings are currently closed.

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