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6.Troubleshooting
Make sure that only qualified persons or persons who are familiar with welding machines
Note
take case of the maintenance and inspection work.
WARNING
Make sure to turn off the power switch and the switch of the distribution box before removing the top
cover of this product.
Refer to the following table to check the possible cause
and treatment for the error. If the indicated treatment does
Error
The actual readout is compared to the set
value, and the actual readout is out of the set
[01]
range.(*1)
Current limit
(No detection in the case of voltage
compensation.)
[02]
Four consecutive cycles of full wave occurred
Full wave
during welding.
When the total of two cycles (in case of the
[03]
constant current control) and when the total of
No welding
four cycles (in case of the power voltage
compensation) of no welding occurred.
[04]
The welding power is cut off during sequence
Welding power
operation.
error
[05]
Current flows during the initial squeeze time.
SCR short-circuit
[06]
When the tip sticking function is selected, and
Tip sticking
the both upper and lower tips are stuck to work.
[07]
When the primary constant current system is
CT wire cut
selected, and breaking of C.T. wire occurs.
[08]
When the secondary constant current system is
Toroidal wire cut
selected, and breaking of toroidal coil occurs.
[09]
See the next section for details.
Setup error
[10]
Data that exceeds the data upper/lower limit is
Memory error
stored.
When the sequence stop function is selected,
[11]
and the external sequence stop input it turned
Sequence stop
off (open).
[90]
Memory writing
When writing of data to memory IC is
error
(*1) The current limit is judged by the each average value of the Weld time 1 and 2 excluding the first two cycles.
(*2) Treatment for the minor troubles includes 1) restart to reset and 2) Output of hold end signal.
(*3) The "Memory writing error" does not affect the data, such as welding condition, WELD CNTR. PROD. CNTR and
STEP UP CNTR. If the reset input does not cancel the error state, please contact Panasonic representatives.
Touching any current-carrying parts may cause a fatal electric shock or
burn injury
To prevent a fatal accident, such as an electric shock, burn injury, etc., make sure to
observe the followings.
Contents
failed.(*3)
not work, turn off the power switch and contact sales
distributor or Panasonic representatives.
Time of
judgement
At the end of
hold time
At detection
At the initial
squeeze time
At detection
When the
starting input is
turned on
When the
control power is
turned on.
At detection
At detection
Troubleshooting
Reset / Re-start / Treatment
of output signal
Treatment for major troubles.
(See below for details.)
Treatment for minor troubles
(*2)
(Default setting) (Changeable
to the treatment for major
troubles.)
Treatment for major troubles.
1)Restart impossible.
Reset by a reset input.
2)No output of the hold end
signal.
3)Trouble output.
4)Buzzer goes off.
1)Restart impossible.
Reset by a reset input.
2)Trouble output.
3)Buzzer goes off.
23
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