Faults When Running Multiple Drives - YASKAWA CC-Link SI-C3 Installation Manual

9 Troubleshooting
Note:
• ○: ON / □: Flashing / ×: OFF / ＊: Either ON or OFF
• SD and RD may appear to flash with slower baud rates.
■

Faults when Running Multiple Drives

The example below demonstrates how to read the LED display on the front cover of the
drive to determine the cause of a fault and the corrective action to take when multiple
drives are running from the same network. The example assumes that SW, M/S, and PRM
on the master device are all off, indicating that the master device is operating normally.
Figure 9.3 Connecting Multiple Drives on the Same Network
Table 9.3 LED Fault Display for CC-Link Option with Multiple Drives
LED Status
Remote Device Addresses (Option)
Master
Station 1
L.RUN ○
SD ○
RD ○
L.ERR ×
L.RUN ×
TIME
SD ×
LINE ○
RD ×
TIME
L.ERR ×
LINE ○
or
TIME
L.RUN *
LINE ×
SD *
TIME
LINE ○
RD *
L.ERR *
L.RUN ○
SD ○
60
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
Cause
○
○
Normal operation
○
×
○
The CC-Link Option for
○
Station 1 is not correctly
○
installed.
×
The CC-Link Option for the
first station is damaged.
○
(most often all LEDs are
out)
○
Note:
○
Sometimes an error will
×
appear on the drive
keypad.
Because L.RUN after
×
Station 2 is OFF, either the
*
communication line
YASKAWA TOEP C730600 83A CC-Link Installation Manual
Possible Solutions
-
Make sure that the CC-
Link Option and drive are
connected together
correctly.
Replace the CC-Link
Option.
Make sure that the
components are connected
correctly, using the LEDs