Tweco A60 Cutmaster - Manual (Page 30)

CUTMASTER A60
INSTALLATION Manual 0-4981 3T-2
There are three options for Divided Arc Voltage signal supplied from the automation interface pcb. This is selected by
connecting the black Jumper Plug on the P1 connector as follows:
Arc voltage / 16.67 Jumper not installed
Arc voltage / 30 Jumper Pins 1 & 2
Arc voltage / 50 Jumper Pins 2 & 3
3. Connect CNC to the power supply.