Mitsubishi Electric MELSEC-Q00U(J)CPU

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CHAPTER 3 FUNCTIONS
3
3.31 CPU Module Change Function with Memory Card 3.31.1 Data backup for the CPU module change function
(4) LED indication
The LEDs on the front of the CPU module indicate backup status.
Value stored in
SD690
Backup status LED indication
2
H
Backup start preparation completed MODE: Flash (green), BAT.: Flash (green)
3
H
Backup in execution
Indication status changes as follows at 800ms intervals.
1) MODE: Flash (green), BAT.: On (green)

2) MODE: Flash (green), BAT.: On (green), USER: On (red)

3) MODE: Flash (green), USER: On (red)
4
H
Backup completed MODE: Flash (green), BAT.: Flash (green), BOOT: Flash (green)
FF
H
Backup error MODE: Flash (green), USER.: Flash (red), BAT.: Flash (green)