The use of G39 signal in PMC based on FANUC system
In the process of using CNC machine tools, lathes will use the tool setting function, milling machines will also use the tool setting function, some complex machine tools due to the large number of tools, in order not to cause confusion, when using the tool offset function, the tool number and tool Compensation numbers correspond one-to-one. For example, when tool No. 3 is used for tool setting, the tool offset generated is set in the tool offset of No. 3. However, there are so many tool compensation numbers. How can we automatically and accurately jump to the corresponding tool compensation number? In this way, when we input the tool compensation amount, it is quick and error-free! Design the corresponding program in PMC to realize this function.
1. PMC signal introduction
Tool compensation number selection signal
OFN0-OFN5 G39.0-G39.5
OFN6-OFN9 G40.0-G40.3
Lathe system 0i-T
Tool coordinate system offset write mode selection signal WOQSM G39.6
Tool compensation amount write mode selection signal GOQSM G39.7
Milling machine system 0i-M
Workpiece origin compensation amount measurement mode selection signal WOQSM G39.6
Tool compensation measurement mode selection signal GOQSM G39.7
2. Examples (lathe)
Assuming that the turret position detection signal is X1.0, X1.1, X1.2, X1.3, and it is 8421 yards to feedback the turret position in real time; when the hold button of X2.0 is pressed, the system automatically jumps to Tool compensation screen, and the tool compensation number corresponds to the turret number one by one.
