RED-D-ARC DC-600

F-3
DIAGRAMS
F-3
CONNECTION OF LN-7 TO THE CV-655, DC-655 OR DC-600 POWER SOURCE
14-PIN
RECEPTACLE
POWER SOURCE
CONTROL CABLE
FOR CONTROL CABLE
WITH 14 PIN MS-TYPE
PLUG CONNECTOR
Do not operate with covers removed.
Disconnect power source before
servicing.
21
LN-7 TO INPUT
CABLE PLUG
LN-7 CONTROL
CABLE
OR
FOR CONTROL CABLE
WITH TERMINAL STRIP
LEAD CONNECTORS
Do not touch electrically live parts.
Only qualified persons should install, use or
service this machine.
+21
-
N.F.
21
41 4 2 31 32 75 76 77
N.B. & N.C.
NEGATIVE POSITIVE
N.D.
N.E.
32
31
2
4
GND
21
N.A. Welding cables must be of proper capacity for the current and
duty cycle of immediate and future applications. See LN-7
Operating Manual for proper sizes.
N.B. If LN-7 is equipped with a meter kit, extend LN-7 control cable
lead #21 from control cable with terminal strip connectors or from
14-pin receptacle using #14 AWG or larger insulated wire physically
suitable for the installation. An S16586-[LENGTH] remote
voltage sensing work lead may be ordered for this purpose.
Connect 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. Note that this is not the
preferred connection because it adds error to the LN-7 voltmeter
reading.)
N.G.
N.C. Tape up bolted connection if lead #21 is extended.
ELECTRODE CABLE
TO WIRE FEED UNIT
N.A.
N.D. Connect 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 WORK
N.E. If an optional remote voltage control is used, connect it to
this terminal strip.
REMOTE VOLTAGE SENSING LEAD
Above diagram shows electrode connected positive. To change polarity,
turn power off, reverse the electrode and work leads at the power
source and position the switch on wire feeder (if equipped )
to proper polarity. Also refer to note N.F.
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.
N.G. Illustration does not necessarily represent actual position of
appropriate output studs. Refer to power source operating manual
for more information.
For proper setting of switches on power source,
see power source operating manual.
10-30-98F
S22976
DC-600