Daihen OTC XD350, Руководство по обслуживанию

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CPXD-350,500 SERVICE MANUAL
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3.4 Troubleshooting (continued)
No. Trouble Cause Solution
Breaking of control cable of
wire feeder or poor contact of
receptacle. After checking cable and
receptacle (line of feed motor),
replace them if needed.
Blown fuse F2. After checking causes of the
trouble, replace the fuse F2 if
needed.
Trouble of R2. After checking causes of the
trouble, replace the R2 if needed.
Trouble of SCR3.
After checking causes of the
trouble, replace the SCR3 if
needed.
Trouble of wire feed motor. Check the wire feed motor.
Trouble of P.C.B. (motor
circuit) After checking C0056P or
C0045Q, replace them if needed.
6
Wire will not
be fed when
the torch
switch TS is
turned on. When pressing the
Inching switch, wire will
not be fed.
Trouble of P.C.B. (remote
control circuit) or incorrect
connection. After checking P10174X and the
wiring, replace them if needed.
Trouble of P.C.B. (control
circuit). After checking C0056P or
C0045Q, replace them if needed.
Trouble of thyristor SCR1 and
2. Replace by new thyristor SCR1
and 2.
Poor insertion of CN4, 23, 24
on C0045Q, and CN8 on
C0056P. Completely insert the connectors.
7
Output voltage will not be generated
when torch switch TS is turned on.
Trouble of P.C.B. (remote
control circuit) or wrong
connection. After checking P10174X and the
wiring, replace them if needed.
Trouble of thyristor SCR1 or 2. Replace the thyristor SCR1 or 2 if
needed.
Trouble of hall element CT. Replace the current detector CT.
Check wire number [1]~[3],
[8]~[13], [17], [21]~[26]. Check the wiring.
8
Being out of control welding machine
causes large current flow.
Trouble of P.C.B. (control
circuit and thyristor C0056P,
ignition circuit C0045Q) After checking C0056P and
C0045Q, replace them if needed.
Breaking of remote control
cable or poor contact of
receptacle. After checking the cable and the
receptacle, replace them if
needed.
Trouble of variable resistor R5
and R6 to set current and
voltage of remote control. Replace the R5 and R6 if needed.
9
Welding current and voltage can not be
set.
Trouble of P.C.B. (control
circuit). After checking C0056P and
C0045Q, replace them if needed.
Trouble of hall element CT. Replace the current detector CT.
10
No transition from slow-down speed to
wire feeding speed at welding.
Trouble of P.C.B. (control
circuit). After checking C0056P and
C0045Q, replace them if needed.
Trouble of crater-filler switch
S7. After checking S7, replace it if
needed.
11
Self-holding can not be set.
Trouble of P.C.B. (control
circuit). After checking PCB1 or PCB2,
replace it if needed.
Condition does not
match during
welding Trouble of hall element CT. Replace the current detector CT.
Trouble of switch S8. After checking S8, replace it if
needed.
12
Penetration
control is not
usable
Penetration control
SW does not work if
turning to “ON”.
Setting of current is law. Penetration control does not work
with law current so set to over
200A.