Miller Auto-Axcess E Digital, Owner'S Manual

Page: 39 / 164

General
OM-257 675 Page 33
8-10. Connecting 3-Phase Input Power (Continued)
Input5 2013-04
!
Turn Off welding power source, and
check voltage on input capacitors
according to Section 8-9 before
proceeding.
!
Installation must meet all National
and Local Codes − have only qualified
persons make this installation.
!
Disconnect and lockout/tagout input
power before connecting input
conductors from unit. Follow estab-
lished procedures regarding the in-
stallation and removal of lockout/
tagout devices.
!
Make input power connections to the
welding power source first.
!
Always connect green or
green/yellow conductor to supply
grounding terminal first, and never to
a line terminal.
NOTICE − The Auto-Line circuitry in this unit
automatically adapts the power source to the
primary voltage being applied. Check input
voltage available at site. This unit can be con-
nected to any input power between and
VAC without removing cover to relink the
power source.
See rating label on unit and check input volt-
age available at site.
1. Input Power Conductors (Customer
Supplied Cord)
Select size and length of conductors using
Section 4-7, 5-7, or 6-7. Conductors must
comply with national, state, and local
electrical codes. If applicable, use lugs of
proper amperage capacity and correct hole
size.
Welding Power Source Input Power
Connections
2. Strain Relief
Install strain relief of proper size for unit and
input conductors. Route conductors (cord)
through strain relief and tighten screws.
Connect input conductors as shown in
illustration.
3. Current Transducer
4. Welding Power Source Grounding
Terminal
5. Green Or Green/Yellow Grounding
Conductor
Route green or green/yellow grounding
conductor through current transducer and
connect to welding power source grounding
terminal first.
6. Welding Power Source Line Terminals
7. Input Conductors (L1, L2 And L3)
Connect input conductors L1, L2, and L3 to
welding power source line terminals.
Reinstall side panel onto welding power
source.
Disconnect Device Input Power
Connections
8. Disconnect Device (switch shown in
the OFF position)
9. Disconnect Device Grounding Terminal
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
10. Disconnect Device Line Terminals
Connect input conductors L1, L2, and L3 to
disconnect device line terminals.
11. Over-Current Protection
Select type and size of over-current protec-
tion using Section 4-7, 5-7, or 6-7 (fused dis-
connect switch shown).
Close and secure door on disconnect device.
Follow established lockout/tagout proced-
ures to put unit in service.
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.