Self-Diagnostic Function; Power Failure Memory - Panasonic kw9m User Manual

7.4 Self-diagnostic function

If an error occurs, the following indication will be given.
When several errors occur, [1] are indicated for the designated digits.
Indicator
00000001 Hardware breakdown
00000100 Firmware update failure
00100000 Internal program error
Memory breakdown
10000000
or crash *
*Includes the possibility that the internal memory life has expired.

7.5 Power Failure Memory

Eco-POWER METER memories integrated electric power and working status to internal memory until
when power supply is off. (Power failure guarantee)
And every time to change each setting, each setting value is memorized to internal memory at the
same time. Rewritable times are limited. Especially be careful if you set by communication.
Meaning
Change main unit due to
Change main unit due to
To recover
the end of hardware
Update again
Power on again
the end of internal
memory
69
KW9M Eco-POWER METER
After recovery
Start with updating
firmware.
Before the abnormal