Lincoln Electric IM511-D manual Output System Trouble Cause What to do

OUTPUT SYSTEM

TROUBLE	CAUSE		WHAT TO DO
E. Contactor does not pull in when	1. Welding terminal switch in wrong		1.	Place switch S6 in “Always On”
scratch starting when engine		position.		position.
goes to high idle.	2. Faulty wiring in contactor circuit.		2.	Check for broken leads #224C,
				#232A, and #224.
			3.	Check switch and leads #247,
	3.	Faulty remote switch S6.		and #250.
			4.	Replace contactor with known
	4.	Faulty contactor.		good one.
			5.	Replace P.C. Board with known
	5.	Faulty P.C. Board PCB1.		good one.
F. Contactor does not pull in when	1. “WELDING TERMINALS” switch		1.	Place switch S6 in “REMOTELY
using a wire feeder with a control		in wrong position.		CONTROLLED” position.
cable plugged into amphenol.	2. Faulty wiring in contactor circuit.		2.	Check for broken leads #224,
				#224C & #232A.
	3.	Faulty amphenol or bypass P.C.	3.	Refer to wiring diagram and
		Board PCB2.		check related leads (#2 and #4).
	4.	Faulty contactor.	4.	Replace contactor with known
				good one.
	5.	Faulty P.C. Board PCB1.	5.	Replace P.C. Board with known
				good one.
	6.	Faulty control cable from wire	6.	Replace.
		feeder or amphenol.
	7.	Faulty wire feeder.	7.	Repair or replace.
G. Contactor does not drop out.	1. Faulty wiring.		1.	Check that lead #232 is not
				grounded.
	2.	Faulty amphenol or bypass P.C.	2.	Look for shorts to ground. Repair
		Board PCB2.		or replace.
	3.	Faulty contactor.	3.	Replace with known good one.
	4.	Faulty P.C. Board PCB1.	4.	Replace with known good one.

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