Yaskawa LEGEND-MC - Manual (Page 344)

334
LEGEND-MC User’s Manual
Example - Start Motion on Switch
Motor X must turn at 4000 counts/sec when the user flips a panel switch to on. When panel switch is
turned to off position, motor X must stop turning.
Solution: Connect panel switch to input 1 of LEGEND-MC. High on input 1 means switch is ON.
Examples - Input Interrupt
Special Labels
This program demonstrates five of the SPECIAL LABELS as part of a LEGEND-MC application
program. #AUTO is usually the first line of a program. When this program is burned into the LEGEND-
MC using the BP command, the program will begin executing when the power is turned ON or after the
Instruction Interpretation
#S;JG 4000 Set speed
AI 1;BGX Begin after input 1 goes high
AI -1;STX Stop after input 1 goes low
AMX;JP #S After motion, repeat
EN;
#A Label #A
II 1 Enable input 1 for interrupt function
JG 30000,-20000 Set speeds on X and Y axes
BG XY Begin motion on X and Y axes
#B Label #B
TP XY Report X and Y axes positions
WT 1000 Wait 1000 milliseconds
JP #B Jump to #B
EN End of program
#ININT Interrupt subroutine
MG "Interrupt has occurred" Displays the message
ST XY Stops motion on X and Y axes
#LOOP;JP #LOOP,@IN[1]=0 Loop until Interrupt cleared
JG 15000,10000 Specify new speeds
WT 300 Wait 300 milliseconds
BG XY Begin motion on X and Y axes
RI Return from Interrupt subroutine