Delta DVP-20PM

8 Application Examples
DVP-20PM Application Manual
8-8
3. P255~SRET: Setting the third axis (Z-axis) control system
The third axis control will activate according to the parameter setting of G00 and G01 instructions.
When G00/G01 sets target position of the Z-axis (D1328), P255 will be enabled to drive Y7 (third
axis control signal) and enable DVP-EH to control the lift or drop of a pen (i.e. up/down movement
of the Z-axis). For more details, please refer to G00 and G01 instructions in Chapter 6.
Ladder diagram: Operations:
D1328 K0
DLD=
OUT
Y7
TIM
K10
Y7 (control signals for pen lifting) is controlled
by the target position (D1328) of the Z-axis.
Pause for 0.1 second
The third-axis control signal (Y7) in P255 of DVP-20PM drives the input contact X1 of DVP-EH. If
X1 is ON, the step motor controlled by pulses will lift the pen through DDRVI. If X1 is OFF, the step
through DDRVI.
Program in DVP-EH:
motor will drop the pen
DDRVI
K5000
X0
X0
K200000
Y0 Y1
DDRVI
K-5000
K200000
Y0 Y1
Connect the input devices Y0 and Y1 in DVP-EH to the pulse input terminals on the step motor.
4.
ET section
with the three sections above and the drawing of letters or graphs can be performed.
Ladder diagram: Operations:
P0~SRET: Two-axis (X-axis/Y-axis) interpolation control
After converting the letters or graphs into G-codes (NC-codes), place the G-code into OX0
subroutine but into P0 subroutine in order to simplify the program. Operate the P0~SR
G0G90X1.759Y87.87
G1Z0.0F19.4
G0X56.164Z5.0
G-codes (NC-codes) which draw paths
When program section 1~program section 4 are completed, drawing of letters, graphs or any texts
by DVP-20PM can be performed by DVP-20PM.