Connecting Input Power - Miller Dimension 1000 Owner's Manual

4-13. Connecting Input Power

9
4
7
4
5
Tools Needed:
3/8 in
3/8 in
OM-2223 Page 20
= GND/PE Earth Ground
8
11
10
2
1
IMPORTANT
6
L1 (U)
L2 (V)
7
L3 (W)
4
3
GND/ PE
Earth Ground
Y Installation must meet all National
Y Disconnect and lockout/tagout in-
Y Make input power connections to
Y Always connect green or green/
See rating label on unit and check input
voltage available at site.
1
Select size and length of conductors using
Section 4-11. 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
Route conductors (cord) through strain re-
lief and tighten screws.
3
4
5
Input Terminal Board
Connect green or green/yellow grounding
conductor to welding power source
grounding terminal first. If unit is equipped
with optional ground current sensor, route
grounding conductor through reed switch
two times and connect to grounding termi-
nal.
6
7
Connect input conductors L1 (U), L2 (V)
and L3 (W) to welding power source line
terminals.
Close and secure access door on welding
power source.
Disconnect Device Input Power Con-
nections
8
9
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
10 Disconnect Device Line Terminals
Connect input conductors L1 (U), L2 (V)
And L3 (W) to disconnect device line
terminals.
11 Overcurrent Protection
Select type and size of overcurrent protec-
tion using Section 4-11 (fused disconnect
switch shown).
Close and secure door on line disconnect
device. Remove lockout/tagout device,
and place switch in the On position.
and Local Codes − have only quali-
fied persons make this installation.
put power before connecting input
conductors from unit.
the welding power source first.
yellow conductor to supply
grounding terminal first, and never
to a line terminal.
Input Power Conductors (Customer
Supplied Cord)
Strain Relief
Machine Grounding Terminal
Green Or Green/Yellow Grounding
Conductor
Reed Switch (Ground Current
Sensor) (Optional)
Welding Power Source Line
Terminals
Input Conductors L1 (U), L2 (V) And
L3 (W)
Disconnect Device (switch shown in
OFF position)
Disconnect Device (Supply)
Grounding Terminal
Ref. 800 103-C / Ref. 802 295