IC697MDL340 Troubleshooting Tutorial GE Proficy Machine Edition GE Fanuc PLC 90-70

Introduction: GE Fanuc IC697MDL340 Troubleshooting Guide

This troubleshooting guide is a test of the GE Fanuc IC697MDL340, a 16 point discreet output. The channels are on the right hand side terminals as illustrated on the door card: A 1 2 3 4 and then B 1 2 3 4, C and D only on the odd numbered Terminals.

Step 1: The Physical Setup

First of all, illustrated here, is all in an IC697CHS750 5-Slot Rack powered by an IC697PWR711 Power Supply. And the processor is an IC697CPX772, and of course the IC697MDL340. As you can see, all of the channels are currently toggled On for this test.
There are leads that are jumpered from terminal 1 to 11, 11 to 21, 21 to 31, and that is plugged in with a 115 volt AC power cord, that’s been cut and split. The hot lead is going to all your jumpered wires, as indicated.

Your neutral lead is going to a neutral lead of a utility light, which you can see on the right hand side of your screen.(see below)

Step 2: Setting up Proficy Machine Edition

The utility light’s hot lead is going to a “pencil” like probe (see image below). So when you are ready to test you can use the probe.
On the Proficy Machine Edition, in main rack you will have the IC697CHS750 5-slot rack IC697PWR711 and IC697CPX772 and the IC697MDL340 configured.
Note that in this configuration, on slot number 2, where the IC697MDL340 is, you can right click and select configure or you can double click on slot number 2 and you can open up the tab in which the IC697MDL340 resides, so you can see what the settings are. The settings you want to look at for this particular test are where the reference address is.

So when you go to your reference table, your output table, (see above) you will know where output 1 starts and so on. So it is the top bit of information under perimeters which says reference address. And it would be %Q (Q is the symbol for output). 00001, in this illustration, yours might be different. So that when you go to your output table, you know that you are going to start toggling bits on changing your 0’s to 1’s at address 00001.

Step 3: Run Test, Turning Bits On

So now that you have had that and done that and toggled all of your 16 channels on, and you are going to go ahead and run a test.

Your goal is that when you touch this probe (see above), the light should come on each of the corresponding outputs. So A1, 2, 3, and 4 are terminals 3, 5, 7, and 9. B 1 through 4 are 13, 15, 17, and 19. And your C outputs are 23,25, 27, and 29. D outputs 1-4, 33, 35, 37, and 39. If all is o.k. than keep going.

Step 4: Run Test, Turning Bits Off

The second side of the test is to make sure that you are able to turn all those bits off. So you are going to go and turn all those ones to zeros, and you are going to be shutting off all these outputs 1 – 16 or groups A, B, C, and D.
And you are going to do the same thing as above: take the terminal lead, touch it to the terminals, 3, 5, 7, and 9. 13, 15, 17, and 19. 23, 25, 27, and 29. 33, 35, 37, and 39. So they are all not working, which is what you want to see. If one of them is still on then there is a problem.
You can try touching the lead to the hot, just to make sure the light is still working. Just to test your test procedure and then you can be satisfied that these are not working when they are in the off position.At this point you can be satisfied that this is a good working output module.
So, there are two things that can go wrong, usually with these modules. One, when you turn the output on, you do not get a response, it is unable to light up the light, or when you turn it off, it works when its off but when you shut it off it is still on. It is frozen in the on state. Which is a more typical problem that you are likely to encounter.

Tags: GE Fanuc, IC697MDL340, Troubleshooting Guide

This entry was posted on May 26th, 2015 and is filed under GE Fanuc, Troubleshooting Guide. Both comments and pings are currently closed.