Miller ARC PAK 350 소유자 매뉴얼 - 페이지 15
{카테고리_이름} Miller ARC PAK 350에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Miller ARC PAK 350 40 페이지.
Miller ARC PAK 350에 대해서도 마찬가지입니다: 소유자 매뉴얼 (47 페이지)
페이지 인쇄
1.
Use Table
4-2
as a
guide
to
select
input
conductors
for the installation. The
input
conductors should be
covered with
an
insulating
material that
complies
with
national,
state,
and local electrical codes.
2.
Install terminal
Iugs
of
adequate
amperage
capacity
and
correct
stud size
onto
the
input
and
ground
con
ductors.
A~
WARNING: ELECTRIC SHOCK
can
kill.
Do
not
(ouch live electrical
parts.
Do
not connect
an
input
conductor
to
the
ground
terminal
in the
unit.
Do
not
connect the
ground
conductor
to
an
input
line terminal.
Incorrect
input
connections
can
result in
an
electrically energized welding
power
source
chassis.
The
ground
terminal is connected
to
the
welding
power
source
chassis
and is for
grounding
purposes
only.
Remove
cover
plate
from
rear
panel.
Obtain
and install astandard conduit strain relief
connector
into
access
hole in
cover
plate.
5.
Insert conductors
through
strain relief installed
in
Step
4.
Route conductors
to
input
terminals.
6.
For
three-phase input supply:
Connect
input
con
ductors
to
line
terminals,
L2,
and L3.
For
single-phase input supply:
Connect
input
con
ductors
to
the
top
Li and bottom L3 terminals.
7.
Connect the
ground
conductor
to
the
ground
termi
nal
(see
Fig~ire
4-1).
8.
Reinstallcover
plate
onto
rear
panel,
and
secure
in
put
cable in strain relief
connector.
9.
Connect
remaining
end of
ground
conductor
to
a
suitable
ground.
Use
a
grounding
method that
com
plies
with all
applicable
electrical
codes.
10.
Connect
remaining
ends of
input
conductors
to
a
deenergized
line disconnect switch.
11.
Use
Table 4-2
as a
guide
to
select line fuses for the
disconnect switch. Obtain and install proper
fuses.
Table
4.2.
Input
Conductor
And Fuse
Slze*
Input
Power
Input
Voltage
Input
Conductor
Size
(AWG)
Ground
Conductor
Size
(AWG)
Fuse
Size In
Amperes
Three-
Phase
230
8
10
60
460
1-0
10
30
Single-
Phase
230
~
6
10
60
460
8
10
40
tConductor size
is based
on
the 1987 Edition of the National
Electrical Code
(NEC)
specifications
for allowable
am
pacities
of
insulated
copper
conductors,
having
a
tempera
ture
rating
of 167F
(75C),
with
not
more
than three
single
current-carrying
conductors in
a
raceway
(Article
310 of
NEC). (The ground
conductor is
not
counted
as a
current-
carrying conductor.)
tFuse
size is based
on
not
more
than 200
percent
of the
rated
input
amperage
of the
welding
power
source
(Article
630
of
NEC).
s-oogeił-aa
Terminal
Strip
11
With
Jumper
Links
Line Disconnect Switch:
Three-Phase
System
Shown
Piinel
3
4.
Ground
Conductor
Center Panel
Contactor
Fuse Fl
Input Voltage
Route To Unit:
Rear Panel Access Hole
Is 1-3/8 in.
(34.9 mm)
In Diameter
Input
Terminal
Board With
Jumper
Unks
18-096
967-A
FIgure
4-1.
Component
Locations And
Input
Conductor ConnectIons
OM-126 853
Page
11