User guide

TM-428 Page 13 Miller Legend
13 Remote Control Switch S4
Selects Panel or remote amperage
control.
14 Circuit Breakers CB1, CB2,
CB5, And CB7
Protect 50/60 Hz auxiliary power
receptacles RC1, RC2, and RC3
from overload.
15 50/60 Hz Auxiliary Power Re -
ceptacles RC1, RC2, And
RC3
Provide connection points and
power
for auxiliary equipment.
16 Circuit Breaker CB3
Protects 100 Hz auxiliary power re -
ceptacle
RC4 from overload.
17 100 Hz Auxiliary Power Re-
ceptacle RC4
Provides connection point and
power for auxiliary equipment
while
welding.
18 Fine Amperage Control R1
Adjusts amperage within range se -
lected by Ampere Ranges switch
S5.
19 Ampere Ranges Switch S5
Selects coarse range of weld out-
put
from weld stator .
20 Reactor AC-Z
Tapped reactor limits weld output
and
provides coarse ranges.
21 Main Rectifier SR1
Changes ac output from weld
windings
to dc.
22 Stabilizer DC-Z
Smooths out current to dc weld
output
terminals.
23 HF Filter Board PC4
Protects unit from high frequency .
24 Positive (+) And Negative (–)
DC W eld Output T erminals
Provide dc weld output.
25 Electrode And W ork AC Weld
Output T erminals
Provide ac weld output.
Stabilizer
Main
Rectifier
SR1
Ampere
Ranges
Switch S5
Reactor
AC-Z
DC-Z
HF Filter
Board
PC4
Positive (+) And
Negative (–) DC
W
eld Output
Terminals
Transformer
T1
Circuit
Breakers
CB1, CB2,
50/60 Hz
Auxiliary Power
Receptacles
RC1, RC2, RC3
19
20
21
22
11
14 15
23
25
24
Electrode And
Work AC Weld
Output Terminals
AC Or DC Control Circuits
Mechanical Coupling
W eld Current Circuit
Magnetic Coupling
♦ Optional
CR4
CB5, CB7