Relation Syntax

[dfdills]

need to write a conditional statement in the relations for NC sequence parameters. Specifically I need to know the if, then syntax.

For example;

if S >10000 then SPINDLE_SPEED = 10000

else SPINDLE_SPEED = S

Where S has already been set equal to an RPM calculation.

Joe Flock

CNC Programmer

joe.flock@machspec.com - please let me here, My friend is posting my question. thanks

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[DanielSantos]

No conditional statements are allowed in the relations at the NC sequence parameters. However you can create if then relations at the nc sequence feature to control this. To do that, you can click on "Relations" (At MFG menu), in the field "Look in" select "Feature" and then click on the nc-sequence you want the custom relations. Then you can create this custom relation:



IF SPINDLE_SPEED > 10000
SPINDLE_SPEED = 10000
ELSE
SPINDLE_SPEED = SPINDLE_SPEED
ENDIF

However this method is not associative. If you change the max rpm the sequence will keep the last limit value calculated you set as the max rpm. I think it does not solve your problem.

Question: if you want to limit the max RPM of the NC-sequence, why don´t you set the max RPM you want for that sequence in particular at the parameter MAX_SPINDLE_RPM or setting the MAX RPM at the workcell?





























Daniel Santos
Suporte Aplicações CAM
GE Oil & Gas

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