MAWA-300B
8. Troubleshooting
8-4
Error
code
Error
message
Cause
Time of
detection
Corrective measure
E22
FeRAM
ERROR
The data reading/writing from
FeRAM was not terminated
normally.
At all times
If this error occurs after a
restart, repairing is required.
Make contact with us.
E23
DRIVE
ERROR
When a recovery was made from
the emergency stop status, the
safety relay could not be reset
successfully.
At all times
Check whether the
“Emergency stop” button is
kept in a pushed status.
If the status cannot be
improved, there is a
possibility of any component
failure. Make contact with
us.
E24
CHARGE
TIME
ERROR
The charging time setting was
faulty.
At an
operation
before
welding
If this error occurs after a
restart, repairing is required.
Make contact with us.
E25
GAS FLOW
ERROR
When the setting was made to an
input terminal, the gas flow was out
of the allowable range set for the
argon gas flow rate sensor at a gas
flow operation.
At a start of
welding
Check the residual quantity
of gas and the flow sensor.
E26
WATCH
DOG
ERROR
An error occurred in the
microcomputer of the main unit.
At all times
If this error occurs after a
restart, repairing is required.
Make contact with us.
E27
CURRENT
READ
ERROR
The microcomputer of the main unit
detected a current value read error.
At a start of
welding
If this error occurs after a
restart, repairing is required.
Make contact with us.
E28
TORCH
HEAD
ERROR
The H-ERROR signal was input.
(Touch start only)
At all times
Check the H-ERROR signal
of optional I/O.
Check whether an error
occurs in the torch head.
*1 It takes 10 seconds to make a recovery from the emergency stop status. The time up to the
recovery is displayed on the Error screen.
Emergency stop status
recovery time display
E01
EMERGENCY
STOP