ESAB EMP 215ic, Руководство по обслуживанию

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ESAB EMS215IC/EMP215IC
Manual 0463 413 001 TROUBLESHOOTING 6-23
3) No welding arc is established when electrode is touched /lifted off the work piece.
a) Open or poor work cable connection
b) Open TIG Torch lead
c) Problem in the remote control start (Trigger) circuit.
Perform REMOTE CONTROL START (TRIGGER) Test, see subsection 6.06
d) Defective Control PCB3
Check LED D33 is on (Very dim) when trigger is active. If it does not turn on replace PCB3.
GMAW (MIG) Process Test Problems
1) Gas does not flow, Wire feed motor does not turn when trigger is depressed.
a) Defective MIG gun trigger or leads.
Perform REMOTE CONTROL START (TRIGGER) Test, see subsection 6.06
2) Wire Feeds but gas does not flow when trigger is active.
a) Gas supply to unit is not on
b) Control PCB3
Check that LED D87 turns on when trigger is activated. If it is not on, replace PCB3.
c) Defective GS1 GAS SOLENOID.
Gas valve supply voltage is 24vdc but if you measure it with true RMS you will receive a value approx.
5vdc Measure at CN10 on PCB3 between pins 1 & 2 when trigger is active.
If voltage is present, replace GS1
3) Gas flows but M1 Wire Feed Motor does not turn when trigger is active
a) Defective M1 motor.
Open wire tension adjustment arm. Depress trigger and measure for DCV at PCB3 connector CN13
between pins 1 & 2. If voltage is present replace M1.
b) Defective CONTROL PCB3.
Depress trigger and measure for DCV at PCB3 connector CN13 between pins 1 & 2. If voltage is not
present replace PCB3.
4) Gas Flows, Wire feeds but no arc established
a) Polarity cable not connected or open
b) Open lead in MIG gun.
5) Cannot change output voltage setting
a) Defective ENCODER PCB6
Perform ENCODER PCB Test, see subsection 6.06