Lincoln Electric IM697 RED-D-ARC MX 300 - Manual (Page 15)

B-1 OPERATION B-1
FRONT PANEL CONTROLS
These few instruments are basic to the operation and
monitoring of the Converter. They are intuitively laid
out so that the panelʼs left side is weld current related,
and the right side is weld voltage related:
(1) Input Power/ Mode Switch has three positions:
Center is OFF which shuts off input power to the
Converter.
• Neither displays nor output is on if in OFF
position.
Left is on for CC (constant current) welding
mode.
• Only AMPS digital meter is lit displaying the
preset current setting.
• Output will be on at o.c.v. (open circuit volt-
age).
Right is on for CV (constant voltage) welding
mode.
• Only VOLTS digital meter is lit displaying the
preset voltage setting
• Output will be on at the output voltage setting.
(2) Output Control has 3-3/4 turn resolution with
slip-clutch to prevent control pot damage.
In CC mode it presets AMPS (30-350A range)
when not welding, and adjusts actual arc current
while welding
.
In CV mode it presets VOLTS (15-40v range)
when not welding, and adjusts actual arc voltage
while welding.
(3) AMPS Digital Meter is a 3-1/2 digit LED meter
which displays:
Preset Amps in CC mode when not welding.
"Blank" in CV mode when not welding.
Actual Amps while welding in both CC and CV
modes.
1
2
3 4
5
6
7
8
9
10
INPUT
WORK
ELECTRODE
+
+
+
Figure 3
The numbered items of Figure 3, above, match the numbered items described below:
RED-D-ARC MX350