IC693ALG391 How-to Troubleshoot 90-30 PLC GE IP Support Fanuc Proficy Programming Tutorial

Introduction: GE Fanuc IC693ALG391 Troubleshooting Guide

This troubleshooting guide is a test of an IC693ALG391 with analog output in current. It has two channels and it has from 4 to 20 milliamps of output.
What you are going is to do is test this module and configure it in Proficy Machine Edition and engage the channels.

Step 1: Setup

Illustrated is an IC693CHS397, 5-slot rack, powered by an IC693PWR330 power supply and an IC693CPU374 plus processor.
Now on the Proficy Machine Edition side, open up a new, blank file that and configure by opening the main rack switching to to a five slot CHS397. Illustated is the same exact configuration that you see physically, as it is set up in the illustration – the PWR330, CPU374 and in slot number 2 the ALG391.

Step 2: Configuring

Now when you configure the ALG391 by it, you can double click on slot number 2 or you can right click on slot number 2 and select configure. And the tab should open up next to the info viewer that shows slot number 2 ALG391. Note the reference address, which, since this is a brand new, fresh file, it is percent AQ, which means output 0001, and that’s your reference address.
So when you go to turn on the outputs, you need to start with the reference address 0001 in the analog output table, and then end on 0002. So those are the two locations or addresses that will activate the two channels.

Step 3: Place Processor in Run Mode

Now the processor should be in Run Mode and the setup is configured and ready to go.
The next thing you want to do is to open up you analog output table (see below). So you’ll go to your navigator bar and under reference view tables, if you expand that you’ll have default tables, and you can expand that.The second selection down is analog output.
So that’s percent AQ or just analog output. You can double click on that or right click and open. And your analog output table will pop up. The top right hand corner is the two addresses AQ 0001 and AQ 0002.

And what you are going to do is put in the full value of 32,000 which should give you about 20 milliamps.
Now if you take a look at the wiring scheme here, there are asterisks on the wiring scheme on the bottom half and those are optional.

You are asked to see the user’s manual for more detailed information on whether you need to use an external power supply for your application. So pay attention to that. What you’re doing is testing to make sure that the outputs are in fact working and that they do have the proper range.

Step 4: Use Multi-Meter Device to do Measurements

Now take your multi-meter and select or choose to read milliamps and select to do DC reading.
And according to your door wiring diagram, your two outputs are output number 1 is terminals 3 and 5. So terminal 3 is positive and terminal 5 is negative. And you’re looking for a reading of about 20.
This illustration shows a reading of 21 and output number 2 or channel number 2 is 4 and 6. 4 is positive. 6 is negative. That way there is a positive reading. If you have it backwards, it’s going to give a negative reading. You don’t want to do that.

Step 5: Testing the Range of the Analog Card

The next thing you want to do is take that 32,000 on address number 0001 and cut it in half to 16,000. And what you are hoping to see is approximately half the value that you saw the first time around.
You should have a reading of about 13. If so, go ahead and cut that number in half to 8,000. What you are doing is testing the range of this analog card because this is not a digital device. This is not simply on or off. This is supposed to have range and resolution. If in cutting the range in half you get the appropriate corresponding reading you should be good to go.

Step 6: Additional Troubleshooting if Necessary

If the card is bad, there are a bunch of different things that can be happening:

1. The first, most obvious thing is that you do not have an okay light on and you don’t get any reading at all and/or any output. So that usually tells you that there’s something wrong with the card. It’s bad.
2. Another thing that can happen is you go to test the milliamp output, and there’s no reading there at all, but the okay light is on.
3. The third thing that usually happens quite frequently is that no matter what value you put in the output table, it is always stuck at 21 milliamps, the full value. They usually fail at full value; that’s why you do 32,000, 16,000, 8,000, 4,000, and keep breaking it down to make sure that the outputs are capable of their full range. Alright.

Tags: GE Fanuc, IC693ALG391, 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.