User Documentation

Specifications
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10.4 Self-diagnostic function
If an error occurs, the following will be displayed.
When several errors occur, [1] are indicated for the designated digits.
Indicator Meaning To recover After recovery
00000001 Hardware breakdown
Change main unit due to
the end of hardware
00000100 Firmware update failure Update again Start with updating firmware
00100000 Internal program error Power on again Before the abnormal
10000000
Memory breakdown
or crash *
Change main unit due to
insufficient internal memory
* Includes the possibility that the internal memory life has expired.
10.5 Power failure memory
Power Monitor stores the integrated electric power and working status to internal memory until the power
supply is off (power failure guarantee).
Each time a setting is changed, each setting value is stored to internal memory at the same time. Rewritable
times are limited. Be especially careful when changing settings via communication.