Connection Of Ln-8 To R3S-250 And R3S-325 - Lincoln Electric LN-8 SVM132-A Service Manual

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FIGURE A.5 – CONNECTION OF LN-8 TO R3S-250 AND R3S-325
THE ABOVE DIAGRAM SHOWS THE ELECTRODE CONNECTED FOR POSITIVE POLARITY. TO CHANGE POLARITY, TURN OFF THE POWER,
REVERSE THE ELECTRODE AND "TO WORK" LEADS AT THE POWER SOURCE, AND REVERSE THE 'CONTROL SWITCH' AT THE POWER
SOURCE.
CONNECT THE LN-8 CONTROL CABLE GROUND LEAD TO THE FRAME TERMINAL MARKED
OR TO AN UNPAINTED FRAME SCREW. THE POWER SOURCE MUST BE PROPERLY GROUNDED.
N.A. WELDING CABLES MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE APPLICATIONS.
N.B. EXTEND LEAD #21 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 WORK LEAD CIRCUIT AND CONNECTION. FOR CONVENIENCE, THIS EXTENDED LEAD #21
SHOULD BE TAPED TO THE WELDING WORK LEAD. (THIS EXTENDED #21 LEAD CONNECTION REPLACES THE NEED TO EMPLOY THE
REMOTE WORK LEAD ACCESSORY ON LN-8 METER KITS WHICH HAVE A DIRECT WORK LEAD JACKET.)
N.C. IF USING AN OLDER LN-8 CONTROL CABLE (PRIOR TO USE OF A, B, AND C MARKING), CONNECT LEAD #75 TO #75 ON THE TERMINAL
STRIP, LEAD #76 TO #76 ON THE TERMINAL STRIP, AND CONNECT LEAD #77 TO #77 ON THE TERMINAL STRIP.
INSTALLATION
WARNING
TURN OFF INPUT POWER
TO THE WELDING POWER
SOURCE USING THE
DISCONNECT SWITCH
BEFORE WORKING
ELECTRIC
ON THIS EQUIPMENT.
SHOCK
CAN KILL
POWER SOURCE
N.B.
21
4
31
32
77
76
75
NEGATIVE POSITIVE
LN-8
TAPE UP
BOLTED
CONNECTION
TO LN-8 INPUT
CABLE PLUG
CONTROL CABLE
21
4
31
32
2
GND
C
N.C.
B
A
ELECTRODE CABLE TO LN-8 OR
NA-3 AUTOMATIC SHUNT
N.A.
TO WORK
NEAR THE POWER SOURCE TERMINAL STRIP
CLEVELAND, OHIO U.S.A.
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