Cant find rapid override on Fanuc LE1 control. Where is it?!?

[MCImes]

Hello,
Im taking over a Tsugami bx12 with a Fanuc LE1 ((OTA capable (whatever that means)) control. I have looked at every menu I can think of and can not find the rapid override.

I know its usually under Offset/Setting>extend>OPR> then page up or down till you see it.

but alas, Its not on the operator panel menu. Ive looked at every sub menu I can think of/find and I see no 100/50/25/0% rapid override.

anyone know where it is or if this control has one?

Thanks

[Al_The_Man]

Many times the OEM only implements feed rate O/R but not rapid O/R in the ladder.
Al.

[MCImes]

if you are correct (which i bet you are) i want to PUNCH THAT ENGINEER IN THE FACE!!!!

did they EVER consult with ANYONE who would ever actually program/setup or operate the machine before producing it?

obviously not. I was hoping that wasnt the answer I would get...

if there is no override does anyone know of a parameter or something to define what my rapid travel rate is?

[tc429]

Ive never heard of a 'LE1', but if its based on a zero-T, 518/519 are x/z rapids, theres a second set (I think 559/560) for manual modes- if those are set at zero, the 518/519 do both auto/manual. I usually chop our manual rates waaaay down- no need to jog a machine at 900 IPM

look in your ladder for HX/ROV1 and HZ/ROV2 signals, dont recall the addresses, but should be around G110~G120...look at the ladder and see if those are only enabled in MPG mode- if they are enabled in other modes, the inputs in that branch would be your rov1/2 inputs- might just need wired in.

[fordav11]

we had a similar problem with one of our machines missing rapid override and spindle override. our maintenance guys found out where the connections were and wired up 2 multi-position switches. I don't know the exact details but your machine should be able to have a switch fitted if you can find out exactly where the connection is.
in the mean time you could use dry run and set the feed override switch to 30-50% which should slow down the rapid (and feed too but you can put it to 100% when feeding)

[MCImes]

so i looked in the ladder display and found my rapid override but I have no idea what im looking at.

Here's what I see: (kinda)
-all the | should be in a line (representing one side of the ladder connection i assume)
- on the control the letters in () are displayed above an oval in the middle of the 2 vertical lines. the oval is connected to the sides with a horizontal line.
for example: (periods are just for spacing, dashes represent a solid line)

|rov10m.....................rov1m...........|rapid override
|-------------------------(oval)----------|1 (main)

the above diagram is more true to life. the stuff below looks the same i just dont have patience to make it look all pretty

|ov0______| |_______(tsitl)__| tool select interlock
|rov10m___| |______(rov1m)___|rapid override 1 main
|rov20m___| |______(rov2m)___|rapid override 2 main
|rov10s___| |_______(rov1s)___|rapid override 1 sub
|rov20s___| |_______(rov2s)___|rapid override 2 sub

| and theres a few more below those but unrelated to rapid override|
|


does that mean I could possibly have a tech wire in a switch? or somehow get it into a menu?

Thanks

(note for self, found on page NET 00185-00191)

[tc429]

that looks greek to me- might be subprogram calls, I write all ours in one ladder, some OEMs write dozens of subs called by the main ladder- we've still got a couple that havent been cleaned up yet... to each his own, but I hate flipping thru different subs.

good news is if theres a sub for it, its in there somewhere already, just gotta look thru the sub, find the actual logic and see what switches it on, might be a 'D' bit, might even be moving macro variables into it, who knows...

lots of OEMs seem to like klunky hard to follow logic. We had a Mori MVJR/10M that was 298 pages of stuff none of our maintenance guys could read, rewrote at around 30 pages with text, and anyone could not just work on it, but actually understand it without dragging out manuals to see what the inputs to all the unnecessary functional instruction blocks meant.

[MCImes]

alright, i have another idea i just discovered. I was looking through my parameters to add a custom g code and I saw parameter 1420. It defines the rapid feed rate for a given axis. They are currently set to 15000 which I assume is mm/min (590 in/min for us) which seems about right.

My question is since there is no rapid override on my control can I change that parameter to whatever for a setup then change it back for production?

any reason this wouldnt work? Im the only one who runs the machine so im not worried about anyone else being confused/forgetting/changing/screwing up.

[fordav11]

yes changing the rapid rate parameter will work fine.

[angelw]

Originally Posted by MCImes alright, i have another idea i just discovered. I was looking through my parameters to add a custom g code and I saw parameter 1420. It defines the rapid feed rate for a given axis. They are currently set to 15000 which I assume is mm/min (590 in/min for us) which seems about right. My question is since there is no rapid override on my control can I change that parameter to whatever for a setup then change it back for production? any reason this wouldnt work? Im the only one who runs the machine so im not worried about anyone else being confused/forgetting/changing/screwing up.

Rather than change the parameter via MDI and enabling PW, you can change the parameter via Programmable Parameter Entry G10. Perhaps the following may work for you.
1. Create a Custom G Code, ie G100
2. Launch G100 via MDI and include the desired percentage of full rapid. This percentage value will be passed to the Macro Program called by G100. For example G100 A20 will set the Rapid Rate to 20% of the normal maximum.
3. In the Macro Program:
i. check the value of variable #1, the value passed by A, is between 1 and 100 (add some error trapping for values outside this range)
ii. do some math on the 100% rapid value using the value passed as A to get A% of max rapid.
iii. change the Rapid Rate in the appropriate parameter using Programmable Parameter Entry G10, to the value resulting from ii.
4. To reset Rapid Rate to 100% command G100 A100

Regards,

Bill

[MCImes]

The custom G code is a great idea! if its not too much trouble could you expand on what the custom g code program would look like? I know how to set up the custom code but dont know exactly what the program should look like. Ive never used the G10 data input command.

something like this?

%o9011
G10 A#1
#1 =#1420
#1 =[15000*?] (how do I define the variable?)
m99

so how do I link A to #1? can I just say #100 =A?

Im sure thats horribly wrong but thats my uneducated guess.

Thanks again

[angelw]

Originally Posted by MCImes The custom G code is a great idea! if its not too much trouble could you expand on what the custom g code program would look like? I know how to set up the custom code but dont know exactly what the program should look like. Ive never used the G10 data input command. something like this? %o9011 G10 A#1 #1 =#1420 #1 =[15000*?] (how do I define the variable?) m99 so how do I link A to #1? can I just say #100 =A? Im sure thats horribly wrong but thats my uneducated guess. Thanks again

so how do I link A to #1? can I just say #100 =A?
There are corresponding Local Variables to most Alpha characters, you don't have to make the association. "A" is associated to #1, "B" to #2 and so on; refer to the Macro Programming section of your Fanuc programming manual for the full list

If Macro Program number O9011 is to be used, the number defining the custom G code will be registered in parameter #6051, for example 100 for G100.

G100 will then launch program number O9011 when commanded.

As explained in my penultimate post, you need to pass the percentage value of the Rapid Override you require; 50% for example. To do this the command line will be as follows. Note, any valid Alpha character can be used to pass the value; P (for percentage) may seem a logical choice but its not valid. In the following example "A" will be used to pass the value; "A" corresponds to local Macro variable #1.

Command Line
G100 A50

%
O9011
(The value passed by "A" will be allocated to #1 in the this Macro Program)
IF [[#1 LT 1] OR [#1 GT 100]]GOTO300; (Error trap)
#2 = [15000/100]*#1; (Calculate A% of max rapid rate)
G10L50 ; (Parameter entry mode start)
N1420 R#2;
G11 ; (Parameter entry mode end)
GOTO301
N300
#3006=1 (INVALID OVERRIDE RATE)
N301
M99;

Check thoroughly before using, but the above will be close.

Regards,

Bill