17-4
Alarm
code
Message Probable Cause Remedy
A9020
Sensor communication error Sensor detects receive command
error or interruption error.
Turn off the power and remove the
cause of the error, and then newly
turn on the power.
A9030
Sensor power failure Sensor detects power failure.
A9040
Sensor CPU Error Error in sensor CPU occurred.
A9050
Sensor memory error Error in contents of the sensor
memory.
A9060
Arc sensor: Input parameter Tool No., current detector or RPM
exceeds set range.
A9070
Arc sensor: Main
communication
Time out.
Turn off the power and remove the
cause of the error.
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