YASKAWA YASNAC i80 Maintenance Manual page 76

2.5 BATTERY (Cent'd)
With the power ON, make sure that the blinking
display on the CRT screen or the red LED at the
front of the model JANCD-FC200, model JANCD-FC300B
and model JANCD-FC400 boards goes OFF.
If they are still illuminated, it is due to an
improper battery connection or a defective battery.
error) occurs, DGN //35024 ($'BALM) is not output.
When DGN //35024 ($'BALM)
is output, the LED goes on
only in the case where the CMOS backup battery is
exhausted.
This battery differs from the encoder battery.
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