Lincoln Electric POWER WAVE IM986 Operator's Manual page 49

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PROBLEMS
(SYMPTOMS)
Analog Inputs donʼt respond or donʼt
respond quickly.
Gas purge not working.
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.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
1. Analog Scans Between Updates.
2. Analog In Active Selections.
3. Analog Hysteresis.
4. Passive Mode.
1. Out of gas.
2. Gas Purge not asserted.
3. Passive Mode.
4. Gas Lines.
POWER WAVE® i400
CAUSE
1. The DeviceNet tab of the Diagnostics
2. From the DeviceNet tab of the
3. From the DeviceNet tab of the
4. The DeviceNet tab of the Diagnostics
1. Verify there is gas available at the
2. From the DeviceNet tab of the
3. The DeviceNet tab of the Diagnostics
4. Verify nothing is obstructing the flow
CAUTION
RECOMMENDED
COURSE OF ACTION
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.
Diagnostics Utility, select Configure.
Verify in "Analog Input Channels" that
the required channels are set active.
Diagnostics Utility, select Configure.
Verify in "Analog Input Channels" that
the Hysteresis settings are all 0.
Utility displays the POWER WAVE®ʼs
passive mode status. If the status
needs to be changed, select
Configure, and make the necessary
modification.
input of the gas solenoid.
Diagnostics Utility, select Monitor. The
Monitor window will be displayed.
Verify under the "Produced Assembly"
that "Gas Purge" is highlighted.
Utility displays the POWER WAVE®ʼs
passive mode status. If the status
needs to be changed, select
Configure, and make the necessary
modification.
of gas.
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