Hypertherm Powermax65 Field Service Bulletin page 5

accessing raw arc voltage
To access raw arc voltage on a Powermax65/85, you must install the strain relief (part number 008279) in kit number
228711. You must also connect an 18 AWG, 2-wire, non-shielded cable similar to OLFLEX ® 190 (601802) in the
length needed to extend between the power supply and the CNC or other equipment plus approximately 2 feet (60 cm)
of cable to connect inside the power supply.
1. On the end of the cable to be connected inside the power supply, strip the outer jacket 3 inches (7.6 cm). Then
strip .5 inch (1.3 cm) of wire insulation off of each wire.
2. Crimp a #8 (M4) ring on the end of Wire #1 (negative lead) and a 1/4 in (M6) ring on the end of Wire #2 (positive
lead).
3. Use a drill with a 19/32 drill bit to drill out the access point on the rear panel. Be careful not to damage internal
components.
Field Service Bulletin
Machine interFace For raw arc Voltage
Rear panel
Access point
3