IC693ALG223 How-to Test Analog Input Module GE Fanuc PLC Proficy Programming Tutorial

Introduction: GE Fanuc IC693ALG223 Troubleshooting Guide

This troubleshooting guide is a test of GE Fanuc IC693ALG223, a 16 channel analog input and it measures current from 4 to 20 milliamps. Illustrated is the configuration of the physical setup, including the wiring, and will show how to configure it in Proficy Machine Edition and some troubleshooting.

Step 1: Setting Up

In this illustration is an IC693CHS397 module in a 5-slot rack. It’s being powered by an IC693PWR330 high capacity power supply and the processor for this test is an IC693CPU374 plus.
So the physical configuration illustrated is exactly what is actually needed in order to do this test although you may be using a different processor or rack, but I do not have anything else installed, this is just a test on the ALG223. And the same configuration that you see physically in this illustration you should set it up on your Proficy Machine Edition.

Step 2: Configuration

First, open up a new test file, a blank file, and under main rack go ahead and configured the same 5-slot rack, power supply, CPU374 and ALG223 and nothing else.

Now, a couple things to note in the Proficy Machine Edition (see above) is when you do install into slot number 2 the ALG223, a tab should pop open next to your info-viewer that says 0.2, meaning slot number 2 IC693ALG223, and that is the configuration page.
And if you do not have that what you can do is right click on slot two and select configure or you can simply double click on slot two.
And there’s a couple things actually that you want to pay attention to. First is under settings and then subcategories parameters, you have active channels. It’s asking you: how many channels do you want to have open and running?
Since you’re going to completely test this module, your’e going to test all 16 channels. So (see below) under values to the right of active channels, you’re going to double click and you’re going to install 16 channels under active channels and then when that’s done you’re going to close that.

You should make sure to check your reference address. With this new blank file, so it is going to be percent AI 0001 and that way you will know where on your analog input table to look for the address that’s going to be reporting the values you’ll be testing.
Once you’ve chosen, the 16 channels or however many channels you wish to test, to get to the next editable channel, you can click input channel data. It’s the third tab to the right and it’ll say channel 1, 2, 3, 4 thru 16 on the left hand side and to the right of that it will say current. And you can double click on where it says 4 to 20 milliamps and it allows you to test it from 4 to 20 milliamps, 0 to 20 milliamps, or 4 to 20 milliamps plus. Its suggested you chose to go with the default value which is 4 to 20 milliamps. Again, this is something that you can change if you need to, if you like.

Step 3: Setting up for the Test

So now that you have all your configurations and your processor in run mode, you’re going to go to reference view tables and then below that default tables and expand that. And I’m going to select analog input. That’s the top selection and my analog input table will show up with all the corresponding reference addresses. (see below)

Now Proficy Machine Edition is all set up. The physical configuration ALG220, if you open it up, the first thing as you can see here you have a positive and negative lead coming from your 24 volt power supply. This is necessary for this test.
The positive lead goes to terminal number one and the negative lead goes to terminal number nineteen. Again that is 24 volt DC. That’s an absolute must in order to test this module. Next thing is just to pay attention to the wiring diagram here.

The channels (see above) are on the far outside in a hexagon. So channel 1 is at terminal screw number three, channel 2 is at terminal screw four, and they zigzag back and forth. And you can just see all the odd channels are on the left hand side, all the even channels are on the right hand side. So you’re to go back and forth in a pattern like that.

Step 4: Running the Test Using 4 to 20 milliamp Generator

The other thing you should have is a 4 to 20 milliamp generator output. Illustrated above are two leads, a positive and negative lead in order to do the test.
Go ahead and place your negative lead on the negative lead from a 24 volt power supply. And then place touch your positive lead to all the corresponding channels starting with channel number 1….then 2, 3, holding it long enough to get a full reading. Sometimes it takes about a second or two. You’re going to go and test each channel.
Another thing that can be done is to and we recommend it is to adjust your 4 to 20 milliamp generator. It is fully adjustable, meaning that you can dial whatever value you want. So you may hold these leads on there and dial it up and down to make sure you are getting a full range of reading.

Step 5: Additional Troubleshooting Steps if Necessary

Some of the typical problems with the annalog current modules:

• if the reading part fails, it usually fails at full value, meaning 32,000. And that means when you touch it with any milliamp value, it could be 2, 3, 4, 5, 10 on a scale from 4 to 20, it’s going to read 32,000. All the way up to 20 it will read 32,000. So in order for you to tell that it is working properly, you need to and should dial it up and down a bit. When you start to touch your probes and go up and down and you see that the value, no matter how far up or how far down the scale, it is always reading 32,000, that’s a bad channel for sure. That channel should be able to read very delicately throughout the entire range.
• if you turn on your ALG223 and you do not get an okay light then that’s also another indication that there’s a problem with the module

Tags: GE Fanuc, IC693ALG223, Troubleshooting Guide

This entry was posted on April 23rd, 2015 and is filed under GE Fanuc, Troubleshooting Guide. Both comments and pings are currently closed.