Lincoln Electric manual Connection of Weldmark 225 to LN-7 & K240 Contactor KIT

F-2	DIAGRAMS	F-2
	WELDMARK 225 / LN-25 ACROSS THE ARC CONNECTION DIAGRAM

WARNING

Do not operate with panels open.

Disconnect NEGATIVE (-) BATTERY LEAD before servicing.

Do not touch electrically live parts.

Keep guards in place.

Keep away from moving parts.

Only qualified personnel should install,use or service this equipment.

6 PIN AMPHENOL

OPTIONAL K444-1

TO WORK ELECTRODE

REMOTE CONTROL

LN-25

WIRE FEEDER

WORK CLIP LEAD

TO WORK

TO WORK

ELECTRODE CABLE

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

N.B. USE POLARITY SWITCH TO SET FOR DESIRED ELECTRODE POLARITY. POSITION THE OUTPUT SELECTOR SWITCH TO THE WIRE FEED (CV) POSITION.

N.C. IF OPTIONAL REMOTE OUTPUT CONTROL IS USED, PLACE OUTPUT CONTROL SWITCH IN "OUTPUT CONTROL REMOTE" POSITION.

CRM 21883

M17486

CONNECTION OF WELDMARK 225 TO LN-7 & K240 CONTACTOR KIT

CONNECTION OF LN - 7 & K240 CONTACTOR KIT WITH 115 VOLT AC AUXILIARY POWER AND CV OUTPUT

CONTROL CABLE

N . D .

CONNECT THE CONTROL CABLE

GROUND LEAD TO THE FRAME

TERMINAL MARKED NEAR

THE TERMINAL STRIP OR TO

AN UNPAINTED FRAME SCREW .

N . F . & N . G .

N . J .

WELDER STANDARD OUTPUT TERMINALS

21

N . C . N . B .

POWER

SOURCE

77 76 75

WORK ELECTRODE

G N D . 3 2 2 4 3 1 TO LN - 7

K240 CONTACTOR KIT

115V (50/60HZ . )

(NOTE : 600 AMP CAPACITY)

3 2 2 4 31

AUTO . POWER

EQUIP . SOURCE

ELECTRODE CABLE TO LN - 7

TO WORK	S17742
	10-2-92

WARNING: Turn the power off when making connections.

N.A. Use power source polarity switch to set for desired elec- trode polarity. Position the output selector switch on the power source to the CV position.

N.B. 3 conductor #16 power cord physically suitable for the installation and plug rated at 115 volts 15 amperes AC.

N.C. Plug into 115 volt AC receptacle on welder control panel or other 115 volt AC supply rated at a minimum of 500 volt- amperes.

N.D. Leads #21 and GND do not appear on LN-7’s with codes below 7026.

N.E. Welding cables must be of proper capacity for the current and duty cycle of immediate and future applications.

N.F. If LN-7 is equipped with a meter kit, extend lead #21 using #14 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. For convenience, this extended #21 lead should be taped to the welding work lead.

N.G. Tape up bolted connection where lead #21 is extended.

N.H. Idler switch on power source must be in high idle position.

N.J. If an optional remote output control is used, connect it to this terminal strip or 6 pin Amphenol receptacle. NOTE: Terminal strip or 6 pin Amphenol receptacle not available on all power sources.

CAUTION: Any speed up of the engine RPM by changing the governor setting or over-riding the throttle linkage will cause an increase in the AC auxiliary voltage. If this volt- age goes above 140 volts, the LN-7 control circuit will be damaged. The engine governor setting is pre-set at the fac- tory - do not adjust above RPM specifications listed in engine welder operating manual.

WELDMARK 225