Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
7. TROUBLESHOOTING
457
A bus error occurred on the base printedcircuit board. This alarm
indicates that an error occurred during the exchange of data within the
base printedcircuit board.
Replace the CPU card on the base printedcircuit board.
Replace the axis control cards, memory module, and FROM module, one
at time.
Replace the base printedcircuit board.
A bus error occurred on the local bus on the base printedcircuit board.
This alarm indicates that an error occurred during the exchange of data
within the base printedcircuit board.
Replace the CPU card on the base printedcircuit board.
Replace the axis control cards, DRAM module, FROM module, and
SRAM module, one at a time.
Replace the base printedcircuit board.
7.33
ALARM 975
(BUS ERROR)
Causes and actions
D Replacing the CPU card
D Replacing other cards
and modules
D Replacing the base
printedcircuit board
7.34
ALARM 976
(LOCAL BUS ERROR)
Causes and actions
D Replacing the CPU card
D Replacing other cards
and modules
D Replacing the base
printedcircuit board

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