Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 59)

HD3070 with Automatic Gas Console Instruction Manual 3-11
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INSTALLATION
Local/External Pierce Delay Function
The power supply is shipped with the PIERCE DELAY potentiometer on the power supply control panel enabled.
Perform the steps below to enable the external pierce complete function. Refer to Section 6, Figure 6-2, item 5 to
locate control board 1XPCB3 and power supply (power unit) wiring diagram for wiring information.
1. Remove the power supply front panel and locate control board 1XPCB3.
2. Disconnect PL10 from REC5 on 1XPCB3.
3. Locate the blue jumper wire connected to PL10 pin 7. Connect the free end of the jumper to PL10 pin 5.
4. Reconnect PL10 to REC5.
To reestablish local control, remove jumper wire from PL10 pin 5.
Local/External Current Set Function
The power supply is shipped with the AMPS thumbwheel switch on the power supply control panel enabled.
Perform the steps below to enable the external current set function. Refer to Section 6, Figure 6-2, item 5 to locate
control board 1XPCB3 and power supply (power unit) wiring diagram for wiring information.
1. Remove the power supply front panel and locate control board 1XPCB3.
2. Disconnect PL27-B (thumbwheel switch connector) from REC27 and then connect PL27-A (external current set)
to REC27.
3. Connect the current setpoint cable (Figure 3-22) between 1X2 (rear of power supply) and CNC Interface.
To reestablish local control, disconnect PL27-A from REC27 and connect PL27-B to REC27. Then disconnect
current setpoint cable between 1X2 and CNC Interface.
Torch Lifter Requirement
The HD3070 requires a motorized torch lifter with sufficient vertical travel to cut all required metal thicknesses.
Vertical travel must be in increments of 0.010 inch (0.25 mm) and have a travel speed of 200 ipm (5.08 m/min)
maximum and braking should be positive. A unit which drifts through the stop point is not acceptable.