Lincoln Electric IM986 manual E-12, Troubleshooting, Problems Symptoms, Possible Cause

E-12	TROUBLESHOOTING	E-12
	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Analog Inputs donʼt respond or donʼt	1.	Analog Scans Between Updates.	1.	The DeviceNet tab of the Diagnostics
respond quickly.				Utility displays the POWER WAVE®ʼs
				“Analog Scans Between Updates” and
				“I/O Scans/Sec.” Verify that “Analog
				Scans Between Updates” is ¼ of “I/O
				Scans/Sec” value.
	2.	Analog In Active Selections.	2.	From the DeviceNet tab of the
				Diagnostics Utility, select Configure.
				Verify in “Analog Input Channels” that
				the required channels are set active.
	3.	Analog Hysteresis.	3.	From the DeviceNet tab of the
				Diagnostics Utility, select Configure.
				Verify in “Analog Input Channels” that
				the Hysteresis settings are all 0.
	4.	Passive Mode.	4.	The DeviceNet tab of the Diagnostics
				Utility displays the POWER WAVE®ʼs
				passive mode status. If the status
				needs to be changed, select
				Configure, and make the necessary
				modification.
Gas purge not working.	1.	Out of gas.	1.	Verify there is gas available at the
				input of the gas solenoid.
	2.	Gas Purge not asserted.	2.	From the DeviceNet tab of the
				Diagnostics Utility, select Monitor. The
				Monitor window will be displayed.
				Verify under the “Produced Assembly”
				that “Gas Purge” is highlighted.
	3.	Passive Mode.	3.	The DeviceNet tab of the Diagnostics
				Utility displays the POWER WAVE®ʼs
				passive mode status. If the status
				needs to be changed, select
				Configure, and make the necessary
				modification.
	4.	Gas Lines.	4.	Verify nothing is obstructing the flow
				of gas.

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® i400