15. LASER FUNCTION
1) Function for changing cutting condition data by screen operations
Select and display a screen, and press the [OPRT] soft key. Then,
modification becomes possible. Move the cursor to the item to
change, and modify data.
a. When data with a currently active number is modified, the active
data of the items except the “Cutter compensation” item is also
b. The new “Cutter compensation” data after the modification
becomes valid when the block at which the buffer content is
rewritten has been executed.
2) Function for modifying cutting data by using an external signal
When modification data is transferred from the PMC to the CNC, data
of a specified item of cutting data with the currently active set number
can be increased and decreased.
Registered data of piercing data groups, power control data groups,
and auxiliary data groups cannot be changed.
This function cannot be used when the option for additional cutting
condition registration is specified.
a. Specifying an R area
Three bytes in the R area of the PMC are allocated to modification
data. When the start address of the R area is set in parameter No.
15360, a 3–byte area starting from the start address is allocated.
b. Modification data
The three bytes in the R area which are allocated by parameter
setting are assigned to the item to change, change amount, and
change magnification as shown below. The CNC reads the three
bytes of data at intervals of 16 ms, and modifies cutting data.
The cutting data to change is the data of an item specified by the
item to change in the cutting data with the set number selected by
the E code. The data is increased or decreased by the value obtained
by multiplying the change amount by the change magnification.
The following data can be modified:
– Peak power
– Pulse frequency
– Pulse duty cycle
– Gap control reference displacement
– Assist gas pressure