A program may follow an analog input, but this only allows the user to control position with an analog input.
The program below will allow a user to control velocity via an analog input.
The Virtual Master commands are hidden in the 6000 series products and only available in the late 4.x firmware.
DEL CONTROL ;Delete the existing program. DEF CONTROL ;Define the program. COMEXC1 ;Continuous execution mode. VAR1=0 ;Set VAR1 to zero. VAR2=0 ;Set VAR2 to zero. MC1 ;Mode Continuous. FVMFRQ,0 ;Virtual Master (VM) Frequency. FVMACC,80000 ;Virtual Master Accel (cnts/sec^2). FOLMAS25 ;Axis 1 will follow Axis 2 VM. FOLRN1 ;Following Ratio Numerator. FOLRD1 ;Following Ratio Denominator. FOLEN1 ;Enable Following. GO1 ;Start the Following. L ;Begin Loop. VAR1=1ANI.1 ;Analog voltage into a variable. IF(VAR1<0.1 AND VAR1>-0.1) ;Set the deadband where no motion VAR1=0 ; will occur. NIF ;End deadband logic. VAR2=VAR1*8000 ;Scale the analog input. FVMFRQ,(VAR2) ;Set the VM Frequency to the input. LN ;End Loop. END ;End program.
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