Lincoln Electric IM669 RED-D-ARC DC-600 - Manual (Page 41)

F-6 DIAGRAMS F-6
DC-600 RED-D-ARC
A
bove diagram shows electrode connected positive.
To change polarity,
turn power off, reverse the electrode and work leads at the power
NEGATI
V
E
POSITI
V
E
32 31 2 4 GND 21
N
.A
.
N
.D
.
ELECTRODE
CABLE
TO
WORK
POWER
SOURCE
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.
CONTROL
BO
X
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
978
N
.B
. &
N
.C
.
14-PIN
RECEPTACLE
75 76 77
remote voltage sensing work lead may be ordered for this purpose.
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.
N
.A
.
W
elding cables must be of proper capacity for the current and
duty cycle of immediate and future applications.
C
onnect it directly to the work piece keeping it electrically
separate form the welding work lead circuit and connection.
For
convenience, this extended #
21
lead should be taped to the
welding work lead.
(If the length of work lead circuit is
short, 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 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. to the wire feeder voltmeter reading.
)
N
.F
.
source.
Reverse the leads on the back of the ammeter and voltmeter
in the automatic control box.
Also refer to note
N.
F.
TO
AUTOMATIC
E
Q
UIPMENT
TO
AUTOMATIC
CONTROL
CABLE
physically suitable for the installation.
A
n
S16586-
[LENGTH
]
41
423
1
32
75
76
77
N
.F
.
21
-
21
+
REMOTE
V
OLTAGE
SENSING
LEAD
N
.C
.
Tape up bolted connection if lead #
21
is extended.
N
.E
.
If a variable voltage board is present in the automatic controls, the jumper lead on the VV board must be connected to pin "
L" to
permit the inch down button to operate.
This jumper, however,
will disable the cold starting/autostop feature of the automatic
controls, permitting only hot starting techniques to be used.
or from
14-
pin receptacle using #
14
AWG
or larger insulated wire
N
.B
.
E
xtend lead #
21
from control cable with terminal strip connectors
10
-3
0-
98F
N
.G
.
Illustration does not necessarily represent actual position of manual for more information.
N
.G
.
CONNECTION OF NA-3, LT-5 OR LT-7 TO THE CV-655, DC-655 OR DC-600 POWER SOURCE
appropriate output studs.
R
efer to power source operating
For proper setting of switches on power source, see power source operating manual.