Laser parameters selection & Update
Before the start of processing the Laser technology for a contour, it is important to select the suitable parameters for the particular contour and update it. These parameters will be updated for every contours in the program.
The functional parameters of Laser technology are as follows:
-
Piercing Method (PM)
-
Cutting Method (CM)
-
Ending Method (EM)
-
Z_Retract_Height (ZRH)
The parameter values are stored in the P-fields and for better understanding the P- fields are globally declared internally in the program as follows:
#globdef PM P1904
#globdef CM P1905
#globdef EM P1906
#globdef ZRH P1907
#globdef Update_Param G22 L9400 (will call %9400 sub program to update parameters)
Parameter Structure:
PM=20.000 CM=100.000
EM=1.000 ZRH=20
Update_Param
Piercing Method
The Piercing methods are defined based on the combination of different types of piercing available.
-
The Piercing methods are defined as Floating numbers = 20.123
-
The numbers before the decimal point represents the “Piercing ID”
-
The numbers after the decimal point represents the “Piercing AID”
Piercing ID:
| S. No. | ID | Description |
|---|---|---|
1. |
0 |
No Piercing |
2. |
1 |
Normal Piercing |
3. |
2 |
Gentle Piercing |
4. |
3 |
Peck Piercing |
5. |
20 |
Multiple Step Piercing |
6. |
21 |
Multiple Step + Peck Piercing |
7. |
22 |
Power varied Ramp Piercing |
8. |
23 |
Duty varied Ramp Piercing |
9 |
24 |
Nozzle height varied Ramp Piercing |
10. |
30 |
Dot Punch Piercing |
Piercing Aid:
| 1st digit: Height Ctrl, Beam OFF, Cool time | 2nd digit: Side Air Blow, Burr Clean | 3rd digit: Free |
|---|---|---|
0 = All Function disable |
0 = All Function disable |
0 = All Function disable |
Bit0 = 1 = Height Ctrl ON |
Bit0 = 1 = Side Air Blow ON |
— |
Bit1 = 1 = Beam ON |
Bit1 = 1 = Burr Clean ON |
— |
Bit2 = 1 = Cool time OFF |
Bit2 = 1 = Free |
— |
Cutting Methods
-
The Cutting methods are defined based on process & length of contours.
-
The Cutting methods are represented as Floating numbers = 123.123
-
The numbers before the decimal point represents the “Process Methods”
-
The numbers after the decimal point represents the “Miscellaneous Control”
Process Methods:
| 1st digit: Process | 2nd digit: Contour | 3rd digit: Distance Regulation |
|---|---|---|
0 = No process |
0 = Large contour |
0 – Height Control (HC) ON |
1 = Cutting |
1 = Medium contour |
1 – HC Freeze in Lead-In & ON during Cutting |
2 = *Special Cutting |
2 = Small contour |
2 – HC ON Positive direction & OFF Negative direction |
3 = Marking |
— |
3 – Height Control (HC) OFF |
4 = *Special marking |
— |
— |
5 = Vaporization |
— |
— |
Miscellaneous Control:
| 1st digit: Lead IN, Hole & Fly | 2nd digit: Retrace | 3rd digit: Free |
|---|---|---|
0 = All Function disable |
0 = All Function disable |
0 = All Function disable |
Bit0 = 1 = Lead IN |
Bit0 = 1 = Lead IN Retrace |
— |
Bit1 = 1 = Pre-Hole |
Bit1 = 1 = Remnant Cut |
— |
Bit2 = 1 = Fly control |
— |
— |
Ending Methods
The Ending methods are defined based on the retract distance of Z-axis along with the Frog jump, HC freeze, etc., at the end.
-
The Ending methods are defined as Floating numbers = 20.123
-
The numbers before the decimal point represents the “End ID”
-
The numbers after the decimal point represents the “End control”
End ID:
| S. No. | End ID | Functions |
|---|---|---|
1. |
1 |
Beam OFF, Z-axis retract = P1906 |
2. |
2 |
Beam OFF, high voltage OFF, Z-axis to home position |
3. |
3 |
Beam OFF, Z-axis remains at the same processed height for the next process. Internally in the PLC, it will be moved to the minimum In-range distance for safety reasons |
End Control:
| 1st digit: Frog Jump, Freeze HC, End Param | 2nd digit: Not used | 3rd digit: Not Used |
|---|---|---|
0 = All Function disable |
0 = All Function disable |
0 = All Function disable |
Bit0 = 1 = Frog Jump |
Bit0 = 1 = Beam OFF |
— |
Bit1 = 1 = Freeze HC |
— |
— |
Bit2 = 1 = End Parameter |
— |
— |