Fanuc 0-MD tool offsets in metric

C

conradshawcross

Plastic

Joined

Mar 27, 2013

Location

United Kingdom

• Nov 10, 2017

• #1

Hi,

We have a Fanuc 0-MD controller on a Hardinge VMC-1000 which I have been trying to set up tool offsets on but have found that in metric the lengths are limited to 99.999mm. I was wondering if there was a way to change this in the parameters so I could input lengths greater then this in metric.

Ideally I don't want to work in imperial to resolve this or come up with a hack gauge that means all the tool lengths come in at under 100mm.

Any help would be greatly appreciated, I have basically used this forum to set up the whole mill from scratch, it is a great resource. Thanks you in advance.

 

B

bassbrawls

Aluminum

Joined

Sep 19, 2006

Location

Florence, Oregon

• Nov 10, 2017

• #2

Everything I've seen in either the Operator or Parameter Manual shows 999.999 or 999.9999 for metric length offsets, depending on whether your control is set up for IS-B or IS-C. In either case, you should be able to input values greater than 99.999. What happens if you input 100.? Does it round to 99.999, or give an alarm?

 

C

conradshawcross

Plastic

Joined

Mar 27, 2013

Location

United Kingdom

• Nov 13, 2017

• #3

It just doesnt let you input anything greater then 99.999 . No alarm code is given. If I put 100 it will go in as 00.100

 

NAST555

Stainless

Joined

May 23, 2008

Location

Gauteng, South Africa

• Nov 13, 2017

• #4

Are you entering and using the soft key to input it or are you using the actual "INPUT" key?
I only have an OMC but I know that some controls are setup that you cannot enter in a wear offset larger than a certain amount. Also is it setup that when you input the amount it is absolute (so if you input 50.0 it displays 50.0) or incremental so if you input 50.0 and then 40.0 does it make it 90.0?

If you put in 100 without the point 0.1 would be correct if your parameters are setup that way.

 

C

conradshawcross

Plastic

Joined

Mar 27, 2013

Location

United Kingdom

• Nov 13, 2017

• #5

I've tried a few different methods for input. Both keys and also using G10 Data input command.

These are absolute values, It wont let me add 1 to 99 for example with incremental.

 

NAST555

Stainless

Joined

May 23, 2008

Location

Gauteng, South Africa

• Nov 13, 2017

• #6

Are you sure that the machine is in metric mode? I know that it restricts the offset on inch mode to 99.9999

 

S

sinha

Titanium

Joined

Sep 25, 2010

Location

india

• Nov 13, 2017

• #7

NAST555 said:

Are you sure that the machine is in metric mode? I know that it restricts the offset on inch mode to 99.9999

Click to expand...

I cannot think of any other possibility.

Max wear offset is defined in parameter 5013.

 

C

conradshawcross

Plastic

Joined

Mar 27, 2013

Location

United Kingdom

• Nov 28, 2017

• #8

Yep its in metric mode.

So annoyingly the offset can be 99.99 inches or 99.99 mm

I have done a work around by setting my shortest tool to offset 0mm and then every other tool offset being set in relation to this. Not ideal but it works.

 

C

conradshawcross

Plastic

Joined

Mar 27, 2013

Location

United Kingdom

• Nov 28, 2017

• #9

Yep its in metric mode.

So annoyingly the offset can be 99.99 inches or 99.99 mm

I have done a work around by setting my shortest tool to offset 0mm and then every other tool offset being set in relation to this. Not ideal but it works.

 

LockNut

Stainless

Joined

Jan 6, 2007

Location

Bergen County

• Nov 28, 2017

• #10

There is no parameter that controls this at all. This is basic Fanuc convention for ALL controls. Inch mode is XX.XXXX ( 4 places to the right of decimal), Metric mode is XXX.XXX ( 3 paces to the right of decimal). Check Parameter 0.2 amd make sure it is a "0" for metric mode. Hardinge does not even have any control over this but I would call them anyway, or call Fanuc.

Paul