Fanuc Ot Maintenance Cnc Manual
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May 12, 2012 - Just wondering could there be a parameter library in my Fanuc OT. A parameter manual my maintenance manuals list all the parameters I can.
Fanuc Ot Maintenance Manual
Just wondering could there be a parameter library in my Fanuc OT control that I can't see by pressing the parameter key and scrolling? The reason I ask is I though I don't have a parameter manual my maintenance manuals list all the parameters I can find on the screen, yet flipping all the pages and reading the descriptions I can't find parameters for turning down the rapid feed rates or any acceleration deceleration parameters. My machine only displays parameters 001-999 and 8100-8299. I found an 0i parameter list that shows 1400's and 1600's controlling these settings. Unfortunately my controller is a 1993 that appears to be 2 years before Fanucs had the descriptions on the screen next to the parameter numbers. My controller doesn't have a system key or a soft key for parameter number search. Horrible subject, I stumbled over that, too.
In my case there was a set of X and Z parameters in a mask that prevented the tool from moving closer towards the chuck than, what was it, 26 and 10 mm, respectively (or so). The programmer made codes with the tool moving from center outwards for planing! Repair guide for 2005 gmc w5500.
I almost went berserk since I wasn’t able ONE to set the values to Zero, and TWO to find back to that page. The boss was the programmer.
He had absolutely no sense for giving me a chance on the issue, so I had to watch the inserts go whining with an cutting angle of 5 degrees! There must be access to those parameters. Problem is that paperwork and control are never made by the same person. You need a knowledgeable Fanuc representative.
Can someone tell me how to go about finding out which diagnostic parameter is for certain applications. I have a GE Fanuc O-T control that uses the B gcode system. I have the GE Fanuc Operators manual and the GE Fanuc Maintenance manual. Both books show parameters however they are the system parameters.
Where is the list of what the diagnostic parameters do? I also have the MTB manuals.
One of them is the electrical diagrams. Im not too sure how to read them. As most of you know a little knowledge can be devastating to a CNC control! The PMC K/L/M/P Programming Manual defines all the Symbols, but basically a Keep Relay can be displayed as a Coil (circle on the RH side of the network) or as a Normally Open or Normally Closed contact (similar to a switch). The Keep Relay will have an address (Dnnn.n) that identifies the Keep Relay. For example, you may see something like D350.3 next to the coil or contact.
However, you really don't need to look at the ladder display if the MTB has provided you with a specific Diagnostic bit. In order to change a Diagnostics bit, you need to do the following: 1.
Go to MDI mode 2. Set the Program Protect keyswitch to enable program editing 3. Set Parameter Write Enable = 1 on the upper CNC Parameter page. Go to the Diagnostics page and page down (or search) to the desired diagnostic address (e.g. Enter the new value and press the INPUT key. Go back to the CNC Parameter page and set the Parameter Write Enable = 0 Note: You'll get a message 100 displayed after step 3, but it is normal.
Hi Lovell, I am assuming there is an alarm that occurs when you have this problem? Note the alarm number. If you have a paper copy of the ladder there might well be a list of addresses search for the alarm number note the An.n number this is the marker for this alarm you need to find the coil of this in the ladder it will look like - and will be on the right hand side of the screen everything to the left of this icon may cause the ladder to either come on or stay off. If you watch the ladder when the alarm occurs to see what is switching on/off you will be able to trace the alarm to its cause. X bits are signals from cnc switches - / - NC - - NO Y's are outputs to machine R's are internal PLC relays K's are keeprelays turned on/off with diagnostic bits. Mystic Monkey, Thank you for that information.
I wasn't sure what to look for but with your explanation that helps a great deal. I am not getting an alarm. The machine just stops when the chuck is open. I am assuming it needed a signal that it was not getting. The MTB seems to think it has something to do with the bar feeder that is no longer attached. He told I had to find the keep relay for the bar feeder and turn it off.
H e could not however tell me where to look due to the age of this machine and his youth. Apparently he is younger than the machine. Here is what I see when the chuck opens and closes on the ladder diagram. F292.7 R502.0 G121.5 -I/I-I/I-O- always lit I According to the screen at the upper right hand corner it has NET 0001-0005 if that means anything.