POWER-MASTER 500 - Victor Technologies

6. Meter Display: The digital meter is used to preset the
output voltage or current when the power source is
not welding, and to display the actual amps or volts
while welding. To preset output current (amps) for
GTAW, SMAW or CAG, place meter Amps/Volts
switch in the Amps position and adjust the main
Amps/Volts control pot to the desired current. To preset
output volts for GMAW, place the meter Amps/
Volts switch in the Volts position and adjust the main
Amps/Volts control pot. to the desired voltage. The
meter will automatically switch over to actual amps
or volts while welding, depending on the position of
the meter Amps/Volts switch.
7. Meter Amps/Volts Switch: This two-position toggle
switch is used to select whether the digital meter will
display amps or volts. To preset weld amperage for
GTAW, SMAW or CAG, place this switch in the AMPS
position. To preset weld voltage for GMAW, place this
switch in the VOLTS mode. After an arc has been initiated,
this switch allows either actual weld amps or
weld volts to be displayed on the meter.
8. Remote/Local Switch: The remote/local toggle switch
is used to select either front panel control of output
amps/volts (LOCAL mode), or remote control of output
amps/volts through the 19 pin or 14 pin receptacles
located on the rear panel (REMOTE mode). For
GTAW mode, the maximum output current must be
preset by the front panel Amps/Volts control pot. For
all other modes, the remote control is full output of
the machine.
9. Amps/Volts Control: This control pot. sets the output
amps or volts depending on the weld process.
Clockwise is increasing output. For all modes except
GTAW, this control is only active when the LOCAL/
REMOTE switch is in the LOCAL mode. For GTAW
this control pot. is used to set the maximum weld current
available to a foot pedal or hand control. To preset
maximum output for GTAW, place the LOCAL/
REMOTE switch in the LOCAL mode and set the
maximum desired amperage on the digital meter. (The
meter amps/volts switch must be in the amps position).
Place the LOCAL/REMOTE switch in the RE-
MOTE mode to activate foot pedal control.
10. Arc Force/Inductance Control: This control pot. is active
for SMAW (Stick) and GMAW (Mig). In SMAW
mode, this pot. controls the amount of arc force or dig
that the arc has. Maximum arc force is full clockwise,
full counter-clockwise is zero arc force. In GMAW
mode, this becomes an inductance control. Maximum
inductance is full clockwise. Higher inductance settings
make the arc “softer” with less spatter. Lower
inductance settings give a stronger “driving” arc. The
inductance should be set according to the type of wire
and gas and desired arc characteristics desired. Generally,
the inductance control can be set at mid-range
as a good starting point.
11. Output Negative Terminal: Connection point for
negative welding lead.
12. Output Positive Terminal: Connection point for positive
welding lead.
MANUAL 430429-485 2-7 INTRODUCTION