Amada IS-300CA, Operation Manual, Page: 96 / 208

CHAPTER 5: MAINTENANCE
IS-300CA INVERTER POWER SUPPLY
5-4 990-
418
FAULT
CODE
CONTENTS CAUSE MEASURES
E-24
PRECHECK
ERROR
Current is outside of the upper and lower
limit setting on the
PRECHECK
screen, when using PRECHECK
Current Supply.
Check for contamination on the electrodes,
contact of electrodes and workpieces.
Check range set on PRECHECK Screen.
E-25
RAM MEMORY
ERROR Count data or schedule number data
stored in memory is damaged.
Memory was erased because period of
memory retention has been exceeded.
The period for retaining the memory of count
data is approximately 10 days since the
power supply was last turned off.
E-26
LACK OF
WELD COUNT The counted “number of welds” is less
than
WELD COUNT setting.
Add required number of welds to meet Weld
Count setting.
E-27
END OF STEP
STEPPER COUNT has completed the
final step.
Dress or replace the tip, then reset step.
E-28
COUNT UP
Counting has arrived at the set pre-set
count value.
Reset the counter.
E-29
PHASE
MISSING An error is detected on the welding
power supply. Confirm that the welding power supply is
input correctly.
E-30
POWER
FAILURE
The power is out during welding.
Check the cause for instantaneous power
failure.
E-31
OUT LIMIT OF
TIME ERROR Weld time is out of TIME setting range
on the MONITOR SET screen.
Check the welding stop input of the external
interface.
E-32
COMM
SETTING
ERROR
When writing data in bi-directional
communication mode at external
communication, data which is out of the
range is written or data format is wrong.
Check the write data.
E-33
SUCCESSIVE
BACK STEP
ERROR The first SCHEDULE is selected.
SCHEDULE cannot be returned any
more.
Check the back step input.
Check that SCHEDULE is returned to the
first one.
E-34
TIP DRESS
REQUIRED
Counting has arrived at the tip dress
setting value. This occurs when the tip
dress is set for stepper.
Dress tip, then reset it.
E-35
APPROACHING
CAP CHANGE Counting has arrived at the tip change
setting value. The time for a capacitor change is
approaching. Check and reset it.
E-36
CAP CHANGE
REQUIRED STEPPER COUNT has completed final
step.
Dress or replace tip, then reset step.