Troubleshooting; Troubleshooting Remote Junction Box Installation - ESAB Remote junction Box Manual De Instrucciones

SECTION 5
DANGER
DANGER

5.0 Troubleshooting

Check the problem against the symptoms in the following troubleshooting guide. The remedy may be quite
simple. If the cause cannot be quickly located, shut off the input power, open up the unit, and perform a simple
visual inspection of all the components and wiring. Check for secure terminal connections, loose or burned wir-
ing or components, bulged or leaking capacitors, or any other sign of damage or discoloration.
The cause of control malfunctions can be found by referring to the sequence of operations, electrical schematics
and checking the various components. A volt-ohmmeter will be necessary for some of these checks.
5.1 Troubleshooting Remote Junction Box installation
Continuous flow of gas from Remote Junction Box.
No gas flow from torch in Gas Test or Operate Mode and
Low Air Pressure code is not present on Power Supply.
ELECTRIC SHOCK CAN KILL! Be sure that all primary power to
the machine has been externally disconnected. Open the line
(wall) disconnect switch or circuit breaker before attempting
inspection or work inside of the power source.
Voltages in plasma cutting equipment are high enough to cause
serious injury or possibly death. Be particularly careful around
equipment when the covers are removed.
Issue Resolution
Extension Cable and Torch Cable are connected to wrong
sides of RJB. Disconnect air supply and cables and reverse
RJB mounting.
Place Power Supply in Gas Test Mode, verify 24VDC is sup-
plied at gas solenoid in RJB.
If 24VDC (polarity not required) is present, verify pins are
properly installed in 12-pin plug, verify plug is mated com-
pletely until tabs are engaged and/or replace solenoid.
If 24VDC is not present, verify wiring connections made in
Installation step A.2.
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TROUBLESHOOTING