Chapter 3. Diagnosis of the Option Statuses and LED Definition
14
LED
LED Signal
Option Status
Possible
Cause
Action
yet.
Kept ON
CANopen
Operational
Master has
been
connected and
communicating
with the
CANopen
normally.
Normal status.
BUS
Kept OFF
Bus Off
CANopen
Option is
isolated from
the network
due to
Problem in the
network.
Check the
connection with
the Network
Line. Check
tightness of
bolts and nuts.
Turn the power
on and off.
Blinks
synchronously
with the CPU
LED
CANopen
Profile Setting
Error
The profile set
up on the
CANopen
Master differs
from that set
up in the
Option.
Check that the
PDOs set up in
the Master and
Option are
identical.
Blinks at an
interval
twice
as long as that
of
the
CPU
LED
PDO
Communication
Not Connected
CANopen’s
communication
speed is
different.
Check that the
baud rate of the
CANopen set
up in the
Master and that
in the Option
are identical.
Master has not
been
connected for
communication
yet.
Check that the
Master has
started
communication.