Secondary axis direction problem on 5x post

[KORLOY]

Hi guys!

I have a problem while posting programs for our 5 axis Okuma 5000V. Sometimes, when I post couple operations of the same tool, in operation change it post with A90 (POSITIVE direction - table rotates from the operator) which is not comfortable and safe to work. It post like this even when I'm forcing it thru misc values (mi10). Same thing happens when I'm transforming operation (by rotation) - in some angles it can post positive. But it never happens in the beginning of the program and with force tool change ON in operations.  My vector section in the post looks like this:

What do think, why it sometimes rotate positive? 

Thank you for your thoughts!

 

 

 

[Colin Gilchrist]

To be able to 'force' the direction, without 'force tool change' on, check you 'bias_null' switch. This must be "on", for the Post to read MI4 & MI5 at a Null Tool Change. 

[KORLOY]

Thank you for the answer Colin! Solved it!