Murex Tradesarc 200, Instruction Manual

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8 FAULT--TRACING
Try these recommended checks and inspections before sending for an authorized
service technician.
Type of fault Corrective action
No arc.
S
Check that the mains power supply switch is turned on.
S
Check that the welding current supply and return cables are
correctly connected.
S
Check that the correct current value is set.
S
Check to see whether the MCB has tripped.
The welding current is interrup-
ted during welding.
S
Check whether the thermal cut--outs have tripped (indicated
by the orange lamp on the front panel).
S
Check the mains power supply fuses.
The thermal cut--out trips fre-
quently.
S
Check to see whether the dust filter is clogged.
S
Make sure that you are not exceeding the rated data for the
power source (i.e. that the unit is not being overloaded).
Poor welding performance.
S
Check that the welding current supply and return cables are
correctly connected.
S
Check that the correct current value is set.
S
Check that the correct electrodes are being used.
S
Check the gas flow.
8.1 Fault codes
Tradesarc 200 comes with built--in fault monitoring. If a fault occurs, a code is shown
in the display, see page 15.
9 CONTROL PANEL
When mains power is supplied the unit runs a self diagnosis of the
LEDs and the display, the program version is displayed and in this
example the program version is 0.18.
VRD (Voltage Reduction Device)
The VRD function ensures that the open--circuit voltage does not exceed 35 V when
welding is not being carried out. This is indicated by a lit VRD LED. The VRD
function is deactivated when the system senses that welding has started.
If the VRD function is activated and open--circuit voltage exceeds the 35 V limit, this
is indicated by an error message (16) appearing in the display and welding cannot
be started whilst the error message is displayed.
NOTE! The VRD function is not active (LED has gone out) on delivery. Contact an
authorised ESAB service technician to activate the function.
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