Easy Troubleshooting Guide for GE Fanuc IC697CGR772

Introduction: GE Fanuc 90-70 Central Processor IC697CGR772

This troubleshooting guide is a test of the 90-70 central processor, part number IC697CGR772. No need to consider the revision letters, this test will be the same for all of them. The door is removed so you can better see everything and we’re using a IC697CHS750 rack.

Step 1: Power up using a IC697PWR711 Power Supply

When you power up the LED should be blinking at first and then turn solid. If it’s only blinking and you do not get a solid light, then there’s obviously an immediate problem with your processor.

Step 2: Connect the AS693SNP232 Cable to Port 3

Now that it’s powered up, connect up to Port 3 using the AS693SNP232 cable. Plug that in and confirm that the bottom right hand LED, Port #3, is blinking; this is a test of Port 3 as well. If it’s blinking we know it’s working, and also we know it’s communicating and talking.

Step 3: Clear Controller Fault & IO Fault Table & Get Processor Into Run Mode

Now that that’s connected you’re going to go to target >> online commands and clear controller fault and I/O fault table, the bottom two selections in the clear memory category. You’re then going to hit OK. You DO NOT want to hit ALL MEMORY or any of your saved information, just those two faults. Note: In this illustration we’re using Proficy* Machine Edition GE software to control this processor.

Now that you’re done that, you’re going to hit the Download and Run icon which is the download information and run button in one icon. You’re going to download the hardware Configuration and Logic. You are not going to write anything to the flash memory or initial force values. This is just a simple test. Your goal here is to get the processor here into run mode.

Step 4: Complete Building & Confirm LEDs On

After a successful build, if you look up to right hand corner of the processor the first light again is the OK light for the Processor. Second light, middle light left side, is the Run Enabled. And the third LED in the bottom left, is the I/O enabled. Input Output Enabled.

Step 5: Use 3-Part Switch to Test 3 LED lights

The first setting is all the way up and all 3 LED lights are on with Processor, Run and I/O enabled. The second setting, in the middle, is I/O disabled. Then down one more, the third setting, is run disabled. If the LEDs behave in this manner, the switch is working.

Step 6: Test Memory Protect Switch

The next switch you want to test is your Memory Protect switch which is located on the TOP of your processor, above the LED lights. When you turn this on you are looking for this LED to turn on and this tells you that the memory protect feature is working.

Step 7: Check to see that Port 2 is working

The last thing you want to do is test the three ports. You know Port 3 is working so you’re going to go ahead and unplug this and go to Port 2. If you have communication in Port 2 you can be confident it is working.

Step 8: Check to see that Port 1 is working

The last step involves a special cable to plug into Port #1. This cable is the IC693CBL316 and appears to be like a phone jack on one side and the other side you can’t see has a serial port connection to go into your computer.

Plug that in, and then plug into the computer side and check to see if the top right LED is blinking and Port 1 is communicating.

Step 9: Additional Steps To Take if Problems Persists

Now you know that your GE Fanuc IC697CGR772 central processor is working properly and some of the features and functions about this processor and it’s in run mode.

However, if you feel that this processor has a problem its a good idea to leave it running over night or over a weekend or for a few days. You hope to find that the processor stays in run mode, that usually indicates that its o.k.

If it falls out of run mode, using your Proficy* Machine Edition software, go to the top menu bar: Target >> Diagnostics towards the bottom of that selection. Then, your diagnostics table will open up and you can see why your processor fell out of run mode.

If that still doesn’t work, we offer repair services and you can reach us at www.pdfsupply.com with all the information.

Tags: ge fanuc, ge fanuc plc troubleshooting

This entry was posted on March 9th, 2015 and is filed under GE Fanuc, Troubleshooting. Both comments and pings are currently closed.