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IC693MDL340 Output Module How-to Test GE Fanuc PLC Proficy Programming Tutorial & Training

Introduction: GE Fanuc IC693MDL340 Troubleshooting Guide

This troubleshooting guide is a test of a GE Fanuc IC693MDL340, 90/30 discreet output module.

Step 1: Setup & Configuration

The module is 120 volts AC, and there’s 16 points total: 8 A and 8 B channels. In order to do this test, there are a couple fixtures illustrated, some things that are already set up.
output

Step 2: Setting Up Jumper Cable

According to the door card, if you look at this insert in the wiring diagram, terminal number 9 and terminal number 19 have a hot lead on both of them so you can see that this is jumpered from 9 to 19 (see below) with a hot lead coming from a 120 volt AC power cord that is illustrated and plugged in for this test.
jumper
The neutral lead from the 120 volt AC is going to another cord which is attached to a drop light.The neutral lead from the drop-light and the neutral lead from the 120 volt AC are tied together. The hot lead from the drop-light – this is the black wire, the hot lead – is going to a probe.(see image #2 below.
neutral-lead
probe

Step 3: Probing Channels

What you are going to do is as you turn each channel on, all the 16 channels, you are going to touch the probe to all the corresponding channels (see below) in order to get the light to turn on. If the light turns on it means that the switch or the output is working properly. If it doesn’t turn on when it’s supposed to be on then it’s not working properly. That’s the whole test.
probe-to-touch

Step 4: Testing the Outputs

The other thing you want to do, of course, is shut all the outputs off, and make sure that they stay off and they’re not stuck in the on position giving you a false belief that it’s in good working condition.
The rest of the equipment illustrated is an IC693CHS397 5-slot rack. It’s being powered by an IC693PWR330 power supply and the processor is an IC693CPU374+.

Step 5: Start a New Fresh File in Proficy Machine Edition

What you are going to do is start a new fresh file in Proficy Machine Edition (see below); something completely blank. Once you have opened up the file that’s set for a 90/30 PLC platform, you are going to go to your navigator bar, you are going to expand your main rack, and yyou are going to choose the 5-slot rack, the CHS397, PWR330 power supply, CPU374+ – or rather just CPU374 processor.
GE Fanuc Troubleshooting Guide Proficy-Setup
And in slot number 2, the IC693NDL340 that you’re going to be testing, and nothing else. This is just a test for the module on its own.
And the first thing you want to do is: you are going to double-click onslot number 2, or you can right-click and configuration. What you are looking for is, note here’s no real configuration for this module, but you want to know where your reference address is so that when you toggle the bits from a 0 to a 1 in my output table, you know where to start.
This is a brand new fresh file. The one that illustrated is %Q, or percent output, 00001. You’ll be starting by toggling the first bit and going all the way through 16.

Step 6: Continuing Configurations in Proficy Machine Edition

Now that the physical configuration that is illustrated here is also setup in Proficy Machine Edition, you are going to click the lightning bolt icon and this will toggle you to online mode. Once that’s online you are going to select the green hand print, which is to put you in program mode. Now go to target, online commands, clear – once the online commands window pops up you want to go to clear.
clearning
And what you want to do here is just go to controller fault table, and IO fault table – the bottom two selections only. There’s no need to erase all memory or anything like that. Logic, initial values, force values, there’s no reason to do any of that, so just any inherent faults because the processor was performing another task before this. And then select OK and Clear those two things.

Step 7: Download & Run

Now you are going to hit the download and run button, which is the download information and the play button in one. That’s going to tell you that the build is currently in progress. This takes a minute. First thing it’s going to ask you is: What exactly do you want to download to the controller from Proficy? Just hardware configuration and motion and logic; that’s the top two selections. You are going to click on both those. You don’t want to write anything to personal flash memory or anywhere else; just to those.
And then you are going to select OK. The build will continue, and once it’s done the last thing it’s going to ask you is if you want to enable the outlets or put the processor into run mode? Select okay. Once that’s done you are going to enable the outputs.
runmode
You should have a green LED light here, showing the processor is in run mode. And also on Proficy Machine Edition you can see on the bottom portion of your screen, it tells you the status of where your controller is. It should say “Run enabled. Logic equal. Configuration equal.”
run-enabled-status
Now that you have an up and working system, you are going to go down to, in your navigator bar once again, to your default tables. Go to output or %Q and double-click on that and the output table will pop open.

Step 8: Testing Your Module Addresses

You are going to start on the top right hand corner of your configuration that’s where your module is. It’s at address 0001. You are going to start turning on all these bits, and turning the 0’s to 1’s. As you can see on the module in front of the MDL340 all of your A and B channels are coming on. Now they’re all on you have, for user reference, you have the 1 through 8 on both channels on and that tells you that it’s on.
channel-lights-on
 
It doesn’t necessarily mean that it’s a working channel so you still have to test it to make sure.
Go ahead and plug in your hot lead to power up the outputs, and you are going to touch the probe (see Image in Step 3 above) to each channel. One, two, three, four, five, six, seven, eight and they should all be working. Now check your B channels, one through eight. Now, you aregoing to go through and you are going to toggle all those ones to zeros in your output table, and you are going to back off all these outputs.
You should see all the lights are going out suggesting that the output is off. Again, it doesn’t necessarily mean that the output really is off, but you are going to check it anyway. Now, always test your test equipment. Do that even though you know you just used this light bulb, you tap it to the light, make sure nobody unplugged it, make sure that the bulb didn’t burn out or something like that.
Now you know it’s a working fixture once again. You are going to test all your outputs, that should be in the off position and the B channels. If these work that means this is a perfect working unit.

Step 9: Additional Steps if Necessary

Just to recap: if there’s a problem with the unit you’ll see a couple possible different things. Either you’ll go to turn the outputs on and you will not get any of the LEDs coming on that indicate that the channels A, one through eight and B, one through eight are on. That might be a problem.
The other problem could obviously be that the channel appears to come on, you get the LED light coming on, and you go to probe it the way I just have and you don’t get a light that comes on. It’s kind of a false reading.
And then the other thing, of course, is when you go and shut all of the outputs off, you may have one or two or several that are still on.
Any of these three things is the typical problems that occurs with the MDL340 that’s troubled.

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

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