
CHAPTER 5: MAINTENANCE
IS-300CA INVERTER POWER SUPPLY
5-2
990-
418
FAULT
CODE
CONTENTS
CAUSE
MEASURES
E-08
OUT LIMIT OF
CURRENT
ERROR
Welding current is out of
CURRENT
setting range on
MONITOR SET
screen.
Check for stained welding electrode or loose
cable connection.
E-09
OUT LIMIT OF
PULSE WIDTH
ERROR
Pulse width of welding current is above
the
PULSE HI
setting range on
MONITOR SET
screen.
Check that the transformer capacity is
sufficient. Check workpiece and welding
electrode.
E-10
SET ERROR
Primary current of turn ratio is out of
range of the following formula:
Correct each setting.
The
WELD1
,
WELD2
and
WELD3
values are all “0.”
The total time of
UP SLOPE
and
DOWN SLOPE
is longer than
WELD
.
HEAT
setting
(including
RATIO
setting) is
≤
the UF or DL setting.
Although STEPPER MODE is set to
LINEAR or FIXED, STEPPER COUNT
of STEP# is set to “0”.
The methods of welding current of a
series of WELDs without COOL are
different and UP/DOWN is set in the
consecutive portion.
(The welding currents are the same with
and without COOL.)
UP/DOWN is set in the consecutive
portion of a series of WELDs without
COOL and the portion meets specific
conditions. See
Chapter 3, Section 3
SCHEDULE Screen
for details.
On
Advanced
Power Supply models,
transformer weld frequency > 1000Hz
E-11
SET OVER
HEAT
setting, including
RATIO
setting
is equal to or lower than UF or DL
setting.
Correct each setting.
HEAT
setting, including
RATIO
setting
is larger than maximum current value,
voltage, or power setting.
HEAT
setting, including
RATIO
setting
is lower than minimum current value,
voltage, or power setting.
HEAT
setting
TURN RATIO
9
≤
≤
300
Summary of Contents for IS-300CA
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