Lincoln Electric 11124, 11226 manual Diagnostics Utility, select

E-8			TROUBLESHOOTING		E-8
	Observe all Safety Guidelines detailed throughout this manual
	PROBLEMS			POSSIBLE	RECOMMENDED
	(SYMPTOMS)			CAUSE	COURSE OF ACTION
		DEVICENET-PLC CONTROLLED SYSTEM
Bad Weld Starting		1.		Wire Feed problem.	1. Verify Feeders drive roll tension
					is not too low allowing the wire to
					slip in the rolls. Verify wire can be
					pulled easily through the wire
					conduit. Verify Contact tip is not
					blocked.
		2.		Strike Wire Feed Speed.	2. Verify the Strike Wire Feed
					Speed set correctly.
		3.		Incorrect Weld Schedule.	3. Verify the correct weld schedule
					is selected.
		4.		Voltage Sense Leads.	4. Verify voltage sense leads are
					properly connected and config-
					ured as described in the instruc-
					tion manual.
		5.		Analog Scans Between Updates.	5. The DeviceNet tab of the
					Diagnostics Utility displays the
					Power Wave’s "Analog Scans
					Between Updates" and "I/O
					Scans/Sec." Verify that "Analog
					Scans Between Updates" is 1/4
					of "I/O Scans/Sec" value.
		6.		Analog Hysteresis.	6. From the DeviceNet tab of the
					Diagnostics Utility, select
					Configure. Verify in "Analog Input
					Channels" that the Hysteresis
					settings are all 0.
		7.		Limit Error.	7. Verify all analog input values are
					within limits.
		8.		Fan Out.	8. From the DeviceNet tab of the
					Diagnostics Utility, select
					Monitor. Verify under "Analog
					Input Fan Out" that Burnback is
					present for all analogs in.
		9.		Gas.	9. Verify Gas is being turned on
					before the output.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

POWER WAVE® AC/DC 1000