3-13
S
ETUP
Operator Manual
ARC VOLTAGE (torch height control)
Output
Full arc voltage. No voltage divider.
300 VDC maximum.
(Signal not available on rear panel
connector.)
+VDC
-VDC
Arc Voltage
If arc voltage is necessary for activating a torch height control, the customer must supply an 18 AWG,
single pair, unshielded cable rated for 300V or greater. The arc voltage signal should be connected
only by qualified service personnel.
1. Disconnect power from Powermax1100.
2. Remove the screws that attach Powermax1100 cover to the chassis. Remove the cover.
3. Push the cable through the strain relief at the rear of Powermax1100.
Figure 3-17 Machine Interface Board Connections for Arc Voltage
Figure 3-16 Location of Arc Voltage Cable Strain Relief
Strain Relief - arc voltage cable
4. Route the cable to the machine interface board located on the top of the power supply near the
Powermax1100 control board. Connect the arc voltage cable as shown in Fig. 3-17. Tighten the
strain relief.
START
XFER
ARC
VOLTAGE
J1
1
6
8
Signal:
Type:
Notes:
J1-6
J1-8
WARNING
SHOCK HAZARD: Always turn off the power, unplug the cord and wait 5 minutes before
removing any power supply cover. If the power supply is directly connected to a line
disconnect switch, place switch in the OFF position. In the U.S., use a "lock-out / tag-out"
procedure until the service or maintenance work is complete. In other countries, follow
appropriate local or national safety procedures.
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