Fault Code Description, Power Source - ESAB Aristo Origo Arc 4001i Service Manual

Fault
code
20 Memory allocation error
22 Transmitter buffer overflow
23 Receiver buffer overflow
26 Program operating fault
27 Out of wire
28 Stack overflow
29 No cooling water flow
31 No reply from the display unit
32 No gas flow
40 Incompatible units

Fault code description, power source

This manual describes the fault codes for the power source. The fault codes for other units
are described in the manuals for these units.
Code Description
1 EPROM check sum error - program memory error
Check sum test of the program memory, which is run only when initiating the power source
after power-up. This fault does not disable any functions.
The program memory is damaged. This is a serious fault, that can have unforeseen effects.
Action: Restart the power source. If the fault persists, load new software via ESAT. If the
fault still persists, replace circuit board 20AP1, which carries the memory chip.
2 Microprocessor RAM error
The microprocessor is unable to read/write from/to a particular memory address in its
internal memory. This test is performed only on initiation after power-up. This fault does not
disable any functions.
Action: Restart the power source. If the fault persists, replace circuit board 20AP1, which
carries the microprocessor chip.
3 Memory error, external RAM
The microprocessor is unable to read/write from/to a particular memory address in its
external memory. This test is performed only on initiation after power-up. This fault does not
disable any functions.
Action: Restart the power source. If the fault persists, replace circuit board 20AP1, which
carries the microprocessor chip.
4 5 V power supply too low
The unregulated power supply voltage is too low: the smoothing capacitors cannot keep the
voltage up enough for the processor to continue to operate. The processor stops all normal
activities, expecting to be shut down.
Action: Turn off the mains power supply to reset the unit. If the fault persists, check the
power supply to circuit board 20AP1.
ca42f1
Description Welding Power
data unit source
x
x x
x x
x x
x x
x
x
x
x
- 42 -
Wire feed Remote
unit control
unit
x
x
x
x
x
S0740 800 197/E100621/P74