2RV/2RW/2RX/2RY/3RA-3
7-70
C0120: MAC address data error
MAC address data was incorrect data.
C0130: Backup memory reading/writing error
The reading or writing into the flash memory is unavailable.
C0140: Backup memory data error
The data read from the flash memory is judged as abnormal at the startup.
Step Check description Assumed cause Measures Reference
1 Resetting the main power The flash memory does
not operate properly.
Turn off the power switch and
unplug the power cord. After
5s passes, reconnect the
power cord and turn on the
power switch.
2 Checking the MAC
address
The MAC address is incor-
rect.
Replace the main/engine
PWB when the MAC address
is not indicated on the net-
work status page.
Step Check description Assumed cause Measures Reference
1 Resetting the main power The flash memory does
not operate properly.
Turn off the power switch and
unplug the power cord. After
5s passes, reconnect the
power cord and turn on the
power switch.
2 Checking the main/engine
PWB
The connector is not con-
nected properly or the wire
or main/engine PWB is
faulty.
Reconnect the connector of
the main/engine PWB. If the
wire is pinched or scratched,
repair or replace it. If not
repaired, replace the main/
engine PWB.
Step Check description Assumed cause Measures Reference
1 Resetting the main power The flash memory does
not operate properly.
Turn off the power switch and
unplug the power cord. After
5s passes, reconnect the
power cord and turn on the
power switch.
2 Executing U021 The flash memory does
not operate properly.
Execute U021.
3 Checking the main/engine
PWB
The connector is not con-
nected properly or the wire
or main/engine PWB is
faulty.
Reconnect the connector of
the main/engine PWB. If the
wire is pinched or scratched,
repair or replace it. If not
repaired, replace the main/
engine PWB.