FPΣ User's Manual
4.3 FPΣ Memory Expansion Unit
53
4.3.3 Battery Error
When any error occurs in a backup battery, a specific CPU input will turn to TRUE.
EXAMPLE
X10F X10AX10BX10CX10DX10E X100X101X102X103X104X105X106X107X108X109
1
Battery error relay with memory expansion unit installed as expansion unit 1 in slot 0.
LED Status Description
Off Battery voltage is normal.
X100
On Battery voltage for memory backup is low or the memory backup switch is
set to OFF.
Off Battery voltage is normal.
BATT (red)
On Battery voltage for memory backup is low or the memory backup switch is
set to OFF.
POWER
BATT
POWER and BATT LEDs on the FP
Σ
memory expansion unit
NOTE
If an error with a battery is detected, back up the data within one month and
replace the unit with a new one.
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