Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
2. HARDWARE
177
The DIMM module in the Power Mate i is either a memory or DRAM
module.
The memory module is installed on the DIMM connector on the base
printedcircuit board. To dismount the memory module, it is necessary
to remove the axis control card in advance by following the dismounting
procedure described in Section 2.6.2.
The DRAM module is installed on the DIMM connector on the CPU card.
To dismount the DRAM module, it is necessary to remove the CPU card
in advance by following the dismounting procedure described in Section
2.6.2.
CAUTION
1 To remove the axis control card and CPU card, it is
necessary to remove the base printedcircuit board in
advance by following the dismounting procedure described
in Section 2.6.1. Carefully observe the CAUTION described
in Section 2.6.1.
2 The memory module contains a batterybacked SRAM. An
attempt to dismount and mount the memory module causes
the content of the SRAM to be lost. Do not forget to make
a backup copy of the latest SRAM data into a memory card
or Handy File before dismounting the memory module. It is
recommended that the SRAM data also be backed up into
the builtin FROM of the Power Mate. (See Appendix E or
F.)
3 Replacing the memory module with the battery voltage
applied to it may damage the memory module and battery.
If you want to dismount and mount the memory module, be
sure to remove the battery before attempting to dismount
the base printedcircuit board.
4 The FROM on the memory module contains many types of
system software. (See Section 2.2.5.) When replacing the
memory module, make sure that the functions stored in the
FROM are of the same version as before the replacement
or of a later version. Otherwise, some of the functions may
become unavailable.
5 Be careful not to touch the pins of the DIMM module.
2.6.3
Mounting and
Demounting DIMM
Modules

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