Fanuc Power Mate i-D/H Operation Maintenance Handbook

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7.5.7 Profibus–DP slave board
D Specification
Name
Specification
Profibus–DP slave board A20B–8100–0440
D Connector and LED locations
Connector for
connection with
the backpanel,
JNA
LED B
LED 3
LED 2
LED 1
Profibus interface
connector CN2
Name Color Meaning Required action
LED1 Green The firmware on the com-
munication board has
started running after the re-
set of the CPU on the
board.
If LED1 is kept off:
1) Check the connection of
the board to the back-
panel.
2) Replace the printed–cir-
cuit board.
LED2 Green Profibus communication
has started.
This LED is turned on in
the following cases:
D Parameters and con-
figuration data have
not been received.
D An illegal parameter or
configuration data has
been received.
If LED1 is on, and LED2 re-
mains off:
1) Check the communica-
tion parameters.
2) Check the settings on
the communication mas-
ter side.
LED3 Green Indicates whether Profibus
communication is being
performed normally.
If LED1 and LED2 are on,
and LED3 remains off:
1) Check the connection of
the cable.
2) Check the communica-
tion master status.
3) Check for noise on the
communication line.
LEDB Red A RAM parity alarm has
been issued on this board.
Replace the printed–circuit
board though this alarm can
sometimes be released by
turning the power off then on.

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