Unitor UWI-230TP, Руководство по сборке и подготовке

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PROBLEM CASE SOLUTION
Yellow led on.
Output voltage in each
procedure is about
13.5V. Thermal
protection device
enabled.
Yellow led onThermal protection
device keeps onUsing a
continuity tester verify
if::Protectors are openProtectors
are closedNone of the above
mentioned cases
Leave the machine on for few minutes to allow
the cooling of the inverter. Switch the
machine off and disconnect the plug.
Remove the hood and make sure:the
temperature of the heat sink tool is less than
40°C;If it is less than 40°C, check if the
thermal protection connectors are closed.
(Picture 7)They are defective, replace
themCheck that the wires are properly
connected to the weld lead connectors
(Picture 7).Erratic feeding in the power board
0070, replace it.
When welding the
protection devices of
the line set off.
Make sure the welding current does
not require greater power than the
one supplied by the line.
Decrease the welding current.
The remote control is
damaged.
Check that the 4-pin connector
( picture 13) is correctly inserted
on the front panel.The Front
Panel could be damaged.
Insert the wires into the connectors correctly and
insert the connectors into their housings. Should
this not be sufficient, replace the front panel
board 0015
(Picture 12,13)
The machine always
welds at maximum
current. The Front Panel 0015 is
damaged.The Power Board 0070
is damaged.The Hall Effect is
damaged or the cable is
disconnected.
Switch off the machine and disconnect the
plug:The Front Panel 0015 must be
replaced.The Power Board 0070 must be
replaced.Connect the cable in the right way,
or if damaged, the Hall Effect must be
replaced.
The output voltage in
MMA/TIG is zero and
the welding procedure
is blocked in MMA.
ISOTOP diodes are in short circuit.
The Inversion Module is damaged..
Board 0065 transils damaged
TF POT inductive value is null
Wires Vout damaged
Turn off the machine and remove PCB 0065
(check the ISOTOP diodes):
Replace them (Picture 10)
Replace Module and Board 0071;
Replace Board 0065;
Replace TF POT if damaged.
Checking the wires (Picture 9)