
B–63525EN/02
5. MATTERS COMMON TO BOTH LCD–MOUNTED TYPE
AND STAND–ALONE TYPE i SERIES (HARDWARE)
389
When this procedure is used to replace the battery, normally the BIOS
settings are not cleared. However, in case the settings are cleared, the
following message appears during power up, the default BIOS settings
are loaded, and the unit automatically reboots.
251: System CMOS checksum bad – Default configuration used.
Therefore, check whether the default settings of the CNC display unit
with PC functions or the PANEL i are changed before maintenance. If the
settings are cleared to the defaults, restore the BIOS settings.
WARNING
Before replacing the fuse, eliminate the cause by which the
fuse blew.
Therefore, only those personnel who were well trained for
maintenance and safety can perform the replacement.
When replacing the fuse with the cabinet open, be careful
not to touch the part containing high–voltage circuits.
Otherwise, you receive an electric shock.
A fuse blows when there is a short circuit in the CNC display unit with
PC functions or the PANEL i. When the fuse blows, check the following
points.
S A conductive part touches the main printed circuit board.
S A PCI extension board failed or is incorrectly inserted.
S A cable is incorrectly connected.
When the fuse blows, the system may suffer damage. Before turning on
the power again, make visual and smell inspection to check the system for
an abnormality and replace the failed parts if any.
Item Ordering number
Fuse
For A08B–0082–B001 to –B004, –B011 to –B014,
–B031 to –B038, A13B–0193–B031 to –B038
A02B–0236–K101
A08B–0082–B021 to –B024, –B041 to –B048,
–B051 to –B058, A13B–0193–B041 to –B048,
–B051 to –B058
A08B–0082–K001
5.10.2
Replacing the Fuse
D Ordering number