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

Page 59
Image 59
Lincoln Electric 11124, 11226 manual Diagnostics Utility, select