Unlock Programs Fanuc Parameter 3202

Unlock Programs Fanuc Parameter 3202

Category : Fanuc

Messing With Parameters Can Be Fatal!!!!!

Unlock Programs Fanuc Parameter, first of all you’ll need to go to the setting screen and change the parameter write box to a 1.

Programs 9000 to 9999 are used for things like probing, tool-change and all sorts of other important things.

So beware back em up ASAP.

These programs along with 8000 to 8999 can be locked so no one can mess with them.

3202 if NE9 is 1 then programs 9000 to 9999 can’t be deleted or edited.

3202 if NE8 is 1 then programs 8000 to 8999 can’t be deleted or edited.

 Unlock Programs Fanuc ParameterOnce you’ve finished don’t forget to lock the 9000 programs back up and turn off that parameter write switch.

Unlock Programs Fanuc Parameter 3201

So you might want to use this yourself if you have a sub program in your machine that you use quite often and you don’t want anyone messing with it.

Don’t forget when this parameter is set to stop you editing the programs  you can’t read them in and out either. That means you can’t back them up until you unlock them.

Parameters You may Need to Change

3203 Clear MDI Screen

3401 Calculator Type Decimal Point or Integer

3402 G Codes that are Active When The machine is Turned On

6005 Allows the Use of Local Subroutines (Newer Control)

6050-6059  Allows you to Call a 9000 series Program with a G Code

6080-6089 Allows you to Call a 9000 series Program with An M Code

5003 Retain Geometry when you Press Reset

3291 Wear Offset requires Key to Adjust

8134 3453 allows you to use ,R and ,C (Rads and Chamfers)

That’s it away you go.

Oh just one other thing before you go off and cripple your machine forever.

Do yourself a favor take a picture of the screen before you change a parameter. If you aint got a camera then you must have a piece of paper.

Even better back everything up.


If you have been affected by any of the issues in this post or need CNC Counselling then contact me.

If you want to learn to program CNC Milling Machines

Look no further Contact CNC Training Centre


Bassem Hanna

January 4, 2021 at 12:14 pm

Hi dear
I have CNC Machine Center control Fanuq io and I have problem is cnc lock this lock be any month how to unlock or delete the file lock

Pandi Mugunthan S

December 20, 2021 at 3:49 pm

Hello sir,
I have some problem with fanuc series Oi-tf. I can’t insert new program. Below message repeated show on screen “write protect”. I’ll check parameter write switch enabled, and also check 3210 password protect is empty. How can solve this problem


    December 20, 2021 at 4:20 pm

    What about your edit key. Check that the edit key on the control panel is not locked


May 14, 2022 at 3:31 pm

How to block program insertion in fanuc series Oi-tf


    May 19, 2022 at 7:09 pm

    Not sure what you mean email me and i will try n help


January 11, 2023 at 3:28 am

i have problem in insert and delete the programm.
when i try to insert or delete or edit, ” Write Protect” comes out and
i checked the key on the panel. its locked. it doesnt move to unlock.


    January 11, 2023 at 3:08 pm

    It is the key that is doing it. You need to replace it

Mahesh Ranaware

August 7, 2023 at 7:29 am

A specific program no Ex. O3025 is available in list. But message “program not available” comes when searching in BG EDIT mode


    August 24, 2023 at 2:08 pm

    Not sure on that one

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