To Ln-8 For Same Polarity Operation - Lincoln Electric LN-8 SVM132-A Service Manual

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FIGURE A.8 – K318 DUAL PROCESS CONTACTOR KIT DC-400, CV-400 AND CVI-500 CONNECTION TO
DC-400
21 4 2 31 32
N.F.
TO NEGATIVE OUTPUT TO POSITIVE OUTPUT
STUD ON POWER
SOURCE
N.A.
FOR 50 HZ OPERATION, DISCONNECT BOTH BROWN LEADS FROM TERMINAL 31B AND TAPE UP EACH LEAD. UNTAPE BOTH RED LEADS AND
CONNECT TO 31B.
N.A.A. CONNECT THE LN-8 CONTROL CABLE GROUND LEAD TO THE FRAME TERMINAL MARKED
STRIP OR TO AN UNPAINTED FRAME SCREW. THE POWER SOURCE MUST BE PROPERLY GROUNDED.
N.B.B. EXTEND LEAD #21A & #21B USING #14 OR LARGER INSULATED WIRE PHYSICALLY SUITABLE FOR THE INSTALLATION. AN S16586-[]
REMOTE VOLTAGE SENSING WORK LEAD IS AVAILABLE FOR THIS PURPOSE. CONNECT IT DIRECTLY TO THE WORK PIECE KEEPING IT
ELECTRICALLY SEPARATE FROM THE WELDING LEAD CIRCUIT AND CONNECTION. FOR CONVENIENCE, THESE EXTENDED #21A AND #21B
LEADS SHOULD BE TAPED TO THE WELDING WORK LEAD. EACH LEAD MUST BE CONNECTED DIRECTLY TO THE WORK AND LEADS MUST
NOT BE CONNECTED TOGETHER.
N.A. WELDING CABLES MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE APPLICATIONS.
N.B. BOLT AND TAPE CONNECTIONS.
N.C. TAPE UP SEPARATELY.
N.D. PUT TRANSFER SWITCH IN "SAME POLARITY ON FEEDERS" POSITION.
N.E. MODE SWITCHES ON CONTACTOR KIT ARE NOT FUNCTIONAL WHEN USED WITH THE POWER SOURCE.
N.F. CONNECTION SHOWN FOR NEGATIVE POLARITY. FOR POSITIVE POLARITY REVERSE ELECTRODE AND WORK CABLES CONNECTED TO
POWER SOURCE OUTPUT STUDS.
INSTALLATION
LN-8 FOR SAME POLARITY OPERATION
WARNING TURN OFF INPUT POWER
TO THE WELDING POWER
SOURCE USING THE
DISCONNECT SWITCH
BEFORE WORKING
ELECTRIC
ON THIS EQUIPMENT.
SHOCK
CAN KILL
N.B.B.
21A
N.C.
81
75 76 77
80
77
76
75
4
N.A.A.
GND
2
31
32
STUD ON POWER
SOURCE
WELDER
CONTROL
CABLE
TO WORK
N.B.B.
21B
WELDING LEAD STUD ON
BACK OF CONTACTOR KIT
GND
A
75
A
76
B
C 77
21
4
4
2 2
32 32
31
31
A
N.B.
ELECTRODE
WIRE FEEDER
CABLES
CONTROL
CABLE
N.A.
TO "A" WIRE FEEDER
NEAR THE POWER SOURCE TERMINAL
CLEVELAND, OHIO U.S.A.
LN-8
DUAL PROCESS
CONTACTOR
GND
B
75
A
76
B
77 C
21
4
4
2 2
32 32
31
31
B
N.B.
N.E.
N.D.
WIRE FEEDER
CONTROL
CABLE
N.A.
TO "B" WIRE FEEDER
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