Quick Tips to Solve Your PLC Problems Without Losing the Program

Mitsubishi PLC repairsIs your PLC finally dead now that you’ve reprogrammed the channels on the I/O cards about 10 times? (Did you think we didn’t know you did this? Everyone does this.)

Did your Mitsubishi PLC suddenly just “lose” its program?

Or maybe your GE Fanuc PLC faulted and now the little red light is on and you can’t get your error codes to clear?

Then you would definitely NOT be alone.  We hear these tales of woe day in and day out from manufacturing plants and shops of all sizes.

In a perfect world you would perform monthly or bi-monthly maintenance checks on your PLCs, but even if you manage to do this, many of the most common PLC problems are not caused by lack of maintenance.

Machine age and environmental conditions are often at the heart of the problem.  Assuming you have ruled out ridiculously obvious problems such having the wrong cables or loose cable connections, a few of the evil PLC poltergeists include:

  • Power fluctuations or surges
  • Over heating
  • Blown power supplies
  • Blown I/O cards
  • Bad I/O channels
  • Bad cables/loose cable connection

However, another frequent PLC problem is absolutely a maintenance issue – bad batteries.   Yes, this really happens as it did recently to this Mitsubishi FX-64MR-UA1/UL (see top photo) which is an obsolete PLC.  Obsolete PLCs can be repaired, but this may add some challenges to the repair process. mitsubishi plc batter

If you’ve been neglecting to replace your PLCs back-up battery (a very inexpensive item!), bad things are sure to happen.  If the red fault light indicates “battery status” you are in imminent danger of losing your program.

If you do not have a current program on hand to reload after you’ve replaced the dead battery, then you are in even more trouble.  (WARNING:  If the red battery light comes on don’t down the power! First, get the program backed up BEFORE you attempt to change the battery(s).) Whether you are the boss or the operator, this is not a situation you want to find yourself in.  Let the finger pointing begin!

In almost all of the above mentioned cases, you will need to remove the PLC unit and have it repaired.  If the PLC is still under warranty, you will need to contact the OEM.  If not, you will need the services of a reliable  industrial electronic repair shop that does PLC repairs.  The best repair shops will provide free evaluations, accurate quotes and a warranty on both parts and labor.

How To Get Your Industrial Electronics Repaired Without Working Too Hard

Be preparedThe trees are losing their leaves, the kids are back in school – autumn is right around the corner.  Which makes me think of the fable about The Ant and the Grasshopper.

In case you have forgotten here’s the quickie version:  the Ant was busy during the summer putting away supplies for winter while the Grasshopper was lazing about and enjoying all the good food summer had to offer.  Come winter the Ant was fat, warm and happy while the Grasshopper was starving and cold.  Lesson learned the hard way.

Will you be the ant or the grasshopper this fall?  Ants will be busy caring for and repairing their equipment.  The grasshoppers will be….well, NOT caring and repairing.

We can help you be more ant than grasshopper.  Send us your damaged or questionable electronic equipment and let us do the work.  Evaluations are free with no obligation.  Use this link for fast help http://www.acsindustrial.com/repair_form/index.php .

While we are busy evaluating and repairing your circuit boards, power supplies, encoders, servo motors, drives, monitors, PLCs or CNC equipment, you can take a few more days for yourself to do Grasshopperish things.  Win win!

Got Parts? The ACS Parts Boneyard Needs Some New “Bones” Especially Siemens

Looking for old electronic componentsHave you got shelves of unused electronic equipment?  Maybe some boxes of circuit boards or drives or random components no one’s looked at in months, maybe even years?    ACS might be able to take some of that “junk” off your hands.

We are building some additional Siemens test fixtures at our repair center.  And, at the risk of being completely bombarded with a whole lot of electronic crapola, we are putting out a call for Siemens parts especially those for Siemens Extreem NT/ST including these part numbers:

  • 3-424-2372a01 V161/O
  • 3-424-2339a P200 CPU
  • 1-422-0221  Vnet cable
  • 3-424-2297A01-NT
  • 3-424-2296A01-NT
  • 3-424-2324A01-NT
  • 3-424-2319A02-ST
  • 3-424-2319A03-S

Call us today at 800-605-6419 if you’ve got any of these Siemens parts or similar, or if you prefer, email us at repairs@acsindustrial.com.

This is what we call a win-win.  You get rid of junk and make some money, and we get needed parts!

Isn’t it great when you go through old stuff?  Not only is everything tidier, you almost always find something that has been missing, or that you forgot you had.

Even if you don’t find any Siemens components to send us, you might uncover some potentially useful stuff.  Our tech team can evaluate these electronic items to make sure they are in good working order and provide industrial electronic repair services if they are not.  Our evaluations are free and there’s no obligation.