9 Troubleshooting
YASKAWA ELECTRIC
SIEP C730600 83D YASKAWA AC Drive Option SI-C3 Technical Manual
43
TIME
×
LINE
×
or
TIME
LINE
×
L.RUN
SD
RD
L.ERR
×
L.RUN
SD
RD
L.ERR
L.RUN
SD
RD
L.ERR
×
The CC-Link Option connected to Station 2 is
experiencing electrical noise interference
(L.RUN is sometimes off).
Make sure that the CC-Link Options, drives,
and master device are all grounded properly.
L.RUN
SD
RD
L.ERR
×
L.RUN
SD
RD
L.ERR
L.RUN
SD
RD
L.ERR
Electrical noise interference along the cable
running between Station 2 and Station 3 (L.RUN
is sometimes off).
Reconnect the communication line to the SLD
terminal on the CC-Link Option connector.
Also make sure that all power cables are
properly separated from communication lines (at
least 100 mm away).
L.RUN
SD
RD
L.ERR
×
L.RUN
SD
RD
L.ERR
×
L.RUN
SD
RD
L.ERR
Termination resistor not connected
(L.RUN is sometimes off).
Configure the final station in the series with a
termination resistor.
: On /
: Flashing /
×
: Off /
∗
: Either on or off
LED Status
Cause
Corrective Action
Master
Remote Device Addresses
(CC-Link Option)
Station 1 Station 2 Station 3