Lincoln Electric CV-655 - Manual (Page 37)

F-4 DIAGRAMS F-4
CV-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
S22979
N.B. & N.C.
14-PIN RECEPTACLE
A B C
remote voltage sensing work lead may be ordered for this purpose.
N.A. Welding cables must be of proper capacity for the current and
duty cycle of immediate and future applications.
Connect red jumper to pin "S". Connect white jumper to pin "B".
Above diagram shows electrode connected positive. To change polarity,
N.F.
If lead #21 is to be connected to
follows:
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. Connect 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. Note 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. An 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. Also refer to note N.F.
Refer to NA-5 or NA-5R Operating Manual 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. Extend 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
When using NA-5/-5R controls above Code 8300, the NA-5/-5R Inch Down 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 Voltage P.C. board. This jumper, however, will disable the
permitting only Hot Starting techniques to be used.
Cold Starting/Auto-Stop/Touching-Work 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. Refer to power source operating manual
For proper setting of switches on power source,
see power source operating manual.