Controls For The Xps 450 - Miller XPS 350 Owner's Manual

5-2. Controls For The XPS 450

1 Voltage Range Control S2
Allows selection of voltage in four
coarse ranges, A, B, C, or D.
2 Digital Voltmeter
3 Power On Light PL1
PL1 is lit when power is On.
4 High Temperature Light PL2
PL2 lights up when unit overheats
and shuts down.
5 Digital Ammeter.
6 Voltage Adjustment Control S3
This control allows for 10 voltage set-
tings in each of the four coarse
voltage ranges (A, B, C, or D) of S2.
7 Power Switch S1
Use switch to turn unit On and Off.
8 Positive (+) Weld Output Ter-
minal
9 Wire Feeder Power Cable
Receptacle
Use receptacle to supply power to a
wire feeder.
10 High Inductance Negative (−)
Weld Output Terminal
Connect work lead here for stainless
steel and spray arc applications.
11 Low Inductance Negative (−)
Weld Output Terminal
Connect work lead here for most
short arc applications.
12 Supplementary Protector CB1
CB1 protect the 24 volts AC portion of
the circuit from overload.
13 Supplementary Protector CB2
CB2 protect the 115 volts AC portion
of the circuit from overload.
14 115 AC Receptacle RCPT
Receptacle is located on the back
panel, and provides power for the gas
heater when welding with CO
shielding gas, and for the cooling sys-
tem.
1
8
2
2 3 4
Front Panel
9
Back Panel
5
6
7
11
10
12
14 13
OM-249 332 Page 23