Lincoln Electric NA-5N Service Manual page 17

A-10
FIGURE A.9 – CONNECTION OF NA-5 (ALL) TO A DC-650 PRO
P
P
A
NOTE: ABOVE DIAGRAMS SHOW ELECTRODE CONNECTED POSITIVE. TO CHANGE POLARITY, TURN POWER OFF, REVERSE THE ELECTRODE
AND WORK CABLES AT THE POWER SOURCE AND POSITION THE SWITCH ON THE POWER SOURCE TO PROPER POLARITY. REFER TO
NA-5 OPERATING MANUAL FOR REQUIRED NA-5 CONTROL BOX POLARITY CONNECTIONS.
N.A. WELDING CABLES MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.
N.B. EXTEND LEAD #21A BY REMOVING LEAD #21A FROM THE TERMINAL STRIP AND CONNECTING IT TO A #14 OR LARGER INSULATED WIRE PHYSICALLY SUITABLE FOR
THE INSTALLATION.
N.C. EXTEND LEAD #21 USING A #14 OR LARGER INSULATED WIRE PHYSICALLY SUITABLE FOR INSTALLATION.
N.D. CONNECT EXTENDED LEAD DIRECTLY TO THE WORK PIECE KEEPING IT SEPARATE FROM THE WELDING WORK CABLE CONNECTION TO THE WORK PIECE. FOR
CONVENIENCE, THIS EXTENDED LEAD SHOULD BE TAPED ALONG THE WELDING WORK CABLE.
N.E. TAPE UP CONNECTION.
N.F. FOR PROPER NA-5 OPERATION, THE ELECTRODE CABLES MUST BE SNUGGED UNDER THE CLAMP BAR ON THE LEFT SIDE OF THE NA-5 CONTROL BOX.
N.G. CONNECT NEGATIVE OUTPUT CABLES TO STUDS TO MATCH DC650 PRO MODE SWITCH SETTING.
N.H. THE JUMPERS ON THE NA-5 VOLTAGE BOARD MUST BE CONNECTED AS FOLLOWS: CONNECT RED JUMPER TO PIN "S", CONNECT WHITE JUMPER TO PIN "B".
N.J. IF USING AN OLDER K-215 CONTROL CABLE, CONNECT LEAD #75 TO #75 ON TERMINAL STRIP, CONNECT LEAD #76 TO #76 ON THE TERMINAL STRIP, CONNECT
LEAD #77 TO #77 ON THE TERMINAL STRIP.
N.K. CONNECT THE NA-5 CONTROL CABLE GROUNDING LEAD TO THE FRAME TERMINAL MARKED
INSTALLATION
CONTROL
CABLE
TO NA-5 INPUT
CABLE PLUG
CONNECT TO CABLES FROM
NA-5 WIRE CONTACT ASSEMBLY
R
DC650 PRO POWER SOURCE SETTINGS
1. TURN OFF INPUT POWER.
2. CONNECT ELECTRODE CABLES TO TERMINALS OF DESIRED POLARITY.
3. SET TOGGLE SWITCH TO SAME POLARITY AS ELECTRODE CABLE CONNECTION.
4. SET TOGGLE SWITCH TO REMOTE.
5. SET MODE SWITCH TO DESIRED POSITION FOR THE PROCESS TO BE USED.
6. CONNECT NEGATIVE OUTPUT CABLES TO MATCH MODE SWITCH SETTING.
NA-5
P
6
CONNECT TO CABLES FROM NA-5
WIRE CONTACT ASSEMBLY
CONNECT
TO WORK
NEAR THE POWER SOURCE TERMINAL STRIP.
CLEVELAND, OHIO U.S.A.
A-10
TO NA-5 INPUT
CABLE PLUG
A