Retain Geometry Fanuc Parameter 5003

Retain Geometry Fanuc Parameter 5003

Category : Fanuc

Messing With Parameters Can Be Fatal!!!!!

Retain Geometry Fanuc Parameter 5003, to change this parameters first you need to go to the setting screen in MDI.

Put a 1 in the parameter write box.

Today we are going to change the parameter that stops your tool offset from being dropped when you press reset.

Retain Geometry Fanuc Parameter

Parameter 5003 will stop that annoying thing where you activate a tool offset and then press reset and it clears.

If you have a Mazak machine you will know that if you index to tool 6 the offset will be instantly activated. This means if you are on a CNC Lathe you can just move the tool to a 50mm diameter and turn away. Providing the tool has been measured the size will be correct.

Retain Geometry Fanuc Parameter 5003

You are probably used to the tool not being active if you use a Fanuc control but help is at hand.

With this parameter 5003 set to 1

You input T0101 in MDI and that activates tool number one’s offset. Your position display is now correct (allowing for tool geometry).

If you now look at the ABSOLUTE position display and press reset it will not change. If it changes then the machine is more than likely dropping the tool geometry.

#6  (LVK) Set to 1 not cleared on reset

#7 (TGC) Set to 1 not cleared on reset

Retain Geometry Fanuc Parameter

Retain Geometry Fanuc Parameter

Isn’t it just great to sort out those annoying problems?

Other Parameters Of Interest

3203 Clear MDI Screen

3202 Unlock Program 9000 to 9999 and 8000 to 8999 to Edit

3401 Calculator Type Decimal Point or Integer

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

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.

Or call us

If you want to learn to program CNC Milling Machines

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