Lincoln Electric IM669 RED-D-ARC DC-600 - Manual (Page 39)

F-4 DIAGRAMS F-4
DC-600 RED-D-ARC
N
.C
.
Tape up bolted connection if lead #
21
is extended.
N
.D
.
C
onnect the control cable ground lead to the frame terminal
marked near the power source terminal strip.
The power
source grounding terminal
(marked and located near the power
source input power connections
) must be properly connected to
electrical ground per the power source operating manual. N
.E
.
If an optional remote voltage control is used, connect it to
this terminal strip.
N
.A
.
W
elding cables must be of proper capacity for the current and
duty cycle of immediate and future applications.
S
ee
LN-7
O
perating
M
anual for proper sizes.
N
.B
.
If
LN-7
is equipped with a meter kit, extend
LN-7
control cable
suitable for the installation.
A
n
S16586-
[LENGTH
] remote
voltage sensing work lead may be ordered for this purpose.
C
onnect it directly to the work piece independent of the welding
work cable connection.
For convenience, this extended #
21
lead
should be taped to the welding work lead.
(If the length of
welding work cable is short, less than
25
feet, and connections
can be expected to be reliable, then control cable lead #
21
does
not need to be extended and can be directly connected to terminal #
21
on the terminal strip.
N
ote that this is not the
preferred connection because it adds error to the
LN-7
voltmeter
A
bove diagram shows electrode connected positive.
To change polarity,
turn power off, reverse the electrode and work leads at the power
41
423
1
32
75
76
77
NEGATI
V
E
POSITI
V
E
32 31 2 4 GND 21
N
.A
.
N
.D
.
ELECTRODE
CABLE
TO
WIRE
FEED
UNIT
TO
WORK
POWER
SOURCE
N
.E
.
N
.F
.
reading.
)
N
.F
.
If lead #
21
is to be connected to
the terminal strip,
connect to the #
21
terminal that matches
work polarity.
This
connection must be changed whenever the
electrode polarity is
changed.
Only qualified persons should install, use or service this machine. Do not operate with covers removed. Disconnect power source before servicing. Do not touch electrically live parts.
LN-7
TO
INPUT
CABLE
PLUG
LN-7
CONTROL
CABLE
21
-
21
FOR
CONTROL
CABLE
WITH
14
PIN
MS-T
Y
PE
PLUG
CONNECTOR
OR
FOR
CONTROL
CABLE
WITH
TERMINAL
STRIP
LEAD
CONNECTORS
CONTROL
CABLE
S22
976
source and position the switch on wire feeder
(if equipped
)
to proper polarity.
Also refer to note
N.
F.
N
.B
. &
N
.C
.
14-PIN RECEPTACLE
lead #
21
from control cable with terminal strip connectors or from
14-
pin receptacle using #
14
AWG
or larger insulated wire physically
21
+
REMOTE
V
OLTAGE
SENSING
LEAD
10
-3
0-
98F
N
.G
.
N
.G
.
Illustration does not necessarily represent actual position of
for more information.
CONNECTION OF LN-7 TO THE CV-655, DC-655 OR DC-600 POWER SOURCE
appropriate output studs.
R
efer to power source operating manual
For proper setting of switches on power source, see power source operating manual.