Hobart Welding Products POWERPAK OM-478 - Manual (Page 31)

OM-478 Page 27
6-4. Connecting Auxiliary Power Plant
Ref. S-160 620C
Y Stop engine.
Y Power and weld outputs are
live at the same time. Discon-
nect or insulate unused
cables.
Have qualified person install
according to circuit diagram and
Section 12 – Auxiliary Power Guide-
lines.
.
Place CC/CV switch in CC
position when using auxiliary
power plant.
Remove junction box cover.
1 Lead 93
2 Lead 92
3 Lead 91
4 Lead 90 (Neutral)
5 Lead 42 (Circuit Grounding
Lead)
Lead 42 connects to front panel
Ground stud.
6 Isolated Neutral Terminal
7 Jumper Lead 42
8 Grounding Terminal
Jumper 42 is connected to lead 90
at factory. Jumper 42 may be dis-
connected from neutral to meet
applicable electrical codes.
9 User-Supplied Leads
10 Load Terminals
Connect leads to terminals.
11 Fuses F1, F2, And F3
F1, F2, and F3 protect each load line
from overload.
.
Set Engine Control switch to
Run when using auxiliary
power.
.
If max OCV switch is in Off posi-
tion (see Section 5-1), turn Am-
perage/Voltage control to max
for full output from optional aux-
iliary power plant.
10
Tools Needed:
93
91
90
92
Volts
Amps
KVA/KW
Single
120/240
42
10
Three
240
36
15
60 Hz Frequency
Engine Speed
Max. Fuse Size 45 Amperes
1850 RPM
AC
Phase
1
Phase
3
Output
Lead 42 connects to GROUND stud on
front of unit.
Jumper 42 is connected to 90 at factory.
240V
120V 120V
240V
240V
240V
1 3
F3
F2
F1
4
5
8
1
2
3
6 7
9
11
Generator Windings
(See Section 9 For
Complete Circuit)