Lincoln Electric DC-655 IM602-A - Manual (Page 40)

F-4 DIAGRAMS F-4
DC-655
NEGATIVE
POSITIVE
32 31 2 4 GND 21
N.A.
N.D.
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
.
21
FOR
CONTROL
CABLE
WITH
14
PIN
MS-TYPE
PLUG
CONNECTOR
OR
FOR
CONTROL
CABLE
WITH
TERMINAL
STRIP
LEAD
CONNECTORS
CONTROL
CABLE
S22
979
N.B.
&
N.C.
14-PIN RECEPTACLE
A B C
remote voltage sensing work lead may be ordered for this purpose
.
N.A.
W
elding cables must be of proper capacity for the current and
duty cycle of immediate and future applications
.
C
onnect red jumper to pin "
S
".
C
onnect white jumper to pin "
B
".
A
bove diagram shows electrode connected positive
.
To change polarity
,
N.F.
If lead #
21
is to be connected to
follows:
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
.
C
onnect it directly to the work piece keeping it electrically
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
turn power off
, reverse the electrode and work leads at the power source
.
physically suitable for the installation
.
A
n
S16586-
[LENGTH
]
N.D.
&
N.F.
INPUT
CABLE
PLUG
CONTROL
CABLE
41
423
1
32
75
76
77
N.F.
21
-
21
+
REMOTE
VOLTAGE
SENSING
LEAD
TO
NA-5
/-5R
BOLT
TO
CABLES
FROM
NA-5
/-5R
WIRE
CONTACT
AS
'BLY
box polarity connections
.
A
lso refer to note
N.F.
R
efer to
NA-5
or
NA-5R
O
perating
M
anual for required
NA-5
or
NA-5R
control
FOR
ADDITIONAL
INSTALLATION
INSTRUCTIONS,
SEE
NA-5
OR
NA-5R
OPERATING
MANUAL.
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
separate from the welding work lead circuit and connection
.
For
to the
NA-5
/-5R
voltmeter reading
.)
N.E.
The jumpers on the
NA-5
/-5R
voltage board must be connected as NA-5
/-5R
control box
.
N.C.
Tape up bolted connection if lead #
21
is extended
.
the terminal strip
, connect
W
hen using
NA-5
/-5R
controls above
C
ode
8300,
the
NA-5
/-5R
Inch
D
own
button will not operate unless a jumper is connected between the two tab terminals
, labeled "
AUTO
",
located above the transformer on the
NA-5
/-5R
V
oltage
P.C.
board
.
This jumper
, however
, will disable the
permitting only
H
ot
S
tarting techniques to be used
.
C
old
S
tarting/
A
uto
-S
top/
Touching
-W
ork feature of the
NA-5
/-5R,
10-30-
98F
N.H.
Illustration does not necessarily represent actual position of for more information
.
to the #
21
terminal that matches work polarity
.
This connection
must be changed
whenever the electrode polarity is changed
.
N.G.
For proper
NA-5
/-5R
operation
, the electrode cables must be
snugged under
the clamp bar on the left side of the
N.H.
CONNECTION OF NA-5/-5R TO THE CV-655, DC-655 OR DC-600 POWER SOURCE
appropriate output studs
. R
efer to power source operating manual
F
or proper setting of switches on power source
,
see power source operating manual
.