Miller Maxstar 140, Руководство пользователя

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OM-2224 Page 17
SECTION 3 – OPERATION
3-1. Front Panel Controls
192 999
2
3
4
5
1
6
1 Ready Light
This light comes On when the Power
Switch on the rear panel is placed in the
ON position. The light indicates that the
unit is energized and ready for welding op-
erations.
.
The fan motor is thermostatically
controlled and only runs when cooling
is needed.
2 Amperage Adjustment Control
This control adjusts the desired amperage
for the welding application. Use this control
to set the required value for the specific job
and electrode. The dial is calibrated in ac-
tual amperes according to the input volt-
age used to power the unit.
.
The Amperage Adjustment Control is
a dual reading dial. Be sure to set it ac-
cording to the input voltage supplying
power to the unit.
3 Overtemperature Light
This light comes ON when the unit over-
heats. When this happens, the unit shuts
down and the fan motor runs. Once the unit
has cooled down, the output will come
back ON. Reduce the duty cycle or amper-
age before starting to weld again. This
light flashes if the input voltage (primary) is
too low or if there is an input overcurrent
fault.
4 Positive Weld Output Receptacle
For STICK welding, connect the electrode
cable to this receptacle (normally uses re-
verse polartiy connections, but always
check electrode recommendations.) For
TIG welding, connect work cable to this re-
ceptacle (normally uses straight polarity).
5 STICK / TIG Selector Switch
This switch provides a simple and easy
way to select the required welding pro-
cess. Place the switch in the desired posi-
tion to suit the application. This switch is
NOT a Polarity Switch. This switch acti-
vates the Lift Arc circuit.
6 Negative Weld Output Recptacle
For STICK welding, connect the work
cable to this receptacle (normally uses re-
verse polartiy connections, but always
check electrode recommendations.) For
TIG welding, connect torch cable to this re-
ceptacle (normally uses straight polarity).
Weld output receptacles are
energized when Power
Switch is On and Input sup-
ply power is connected and
On.