YASKAWA CC-Link Installation Manual page 56

9 Troubleshooting
LED Status
Remote Device Addresses
Master
Station 1
L.RUN
SD
TIME
RD
LINE
L.ERR×
or
TIME×
L.RUN×
LINE
SD×
RD
L.ERR
L.RUN
SD
RD
L.ERR×
TIME×
LINE× L.RUN
or SD
RD
TIME
LINE× L.ERR×
L.RUN
SD
RD
L.ERR×
56
(CC-Link Option)
Station 2 Station 3
L.RUN L.RUN
SD SD
RD RD
L.ERR× L.ERR
L.RUN L.RUN
SD SD
RD RD
L.ERR× L.ERR×
L.RUN L.RUN
SD SD
RD RD
L.ERR L.ERR×
L.RUN L.RUN
SD SD
RD RD
L.ERR L.ERR
L.RUN L.RUN
SD
SD
RD RD
L.ERR× L.ERR
YASKAWA ELECTRIC TOBP C730600 83C YASKAWA AC Drive Option SI-C3 Installation Manual
: On / : Flashing / ×: Off / ∗: Either on or off
Cause
The settings for the CC-Link
Option connected to Station
3 were changed without
cycling power.
Parameters related to the
CC-Link Option (F6-10,
F6-11) for Station 1 are set
outside the acceptable range.
The CC-Link Option
connected to Station 2 is
experiencing electrical noise
interference (L.RUN is
sometimes off).
Electrical noise interference
along the cable running
between Station 2 and
Station 3 (L.RUN is
sometimes off).
Termination resistor not
connected
(L.RUN is sometimes off).
Corrective Action
Return any incorrect
settings to their original
values and cycle power.
Enter the proper settings
and cycle power.
 Set F6-10 and F6-11
correctly and cycle power.
Make sure that the
CC-Link Options, drives,
and master device are all
grounded properly.
Reconnect the
communication line to the
SLD terminal on the
CC-Link Option.
Also make sure that all
power cables are properly
separated from
communication lines (at
least 100 mm away).
Configure the final station
in the series with a
termination resistor.