Lincoln Electric DC-655 IM602-A - Manual (Page 37)

F-1 DIAGRAMS
DC-655
F-1
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
NEGATIVE
POSITIVE
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-TYPE
PLUG
CONNECTOR
OR
FOR
CONTROL
CABLE
WITH
TERMINAL
STRIP
LEAD
CONNECTORS
CONTROL
CABLE
S22
97
6
source and position the switch on wire feeder (if equipped )
to proper polarity
. A
lso 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
VOLTAGE
SENSING
LEAD
10-30-
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
.