YASKAWA CC-Link Installation Manual page 52

9 Troubleshooting
u
Fault LED Display on Option Side
Defining Option LED States
n
Figure 26
L.ERR
RD
1000-Series Label
L.RUN
SD
RD
L.ERR
Note: If communication stops while the drive is running, check the following:
 Is the option properly installed?
 Is the communication line properly connected to the option? Is it loose?
 Is the controller program working? Has the controller/PLC CPU stopped?
 Did a momentary power loss interrupt communications?
Faults that Occur with a Single Drive
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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 corrective action.
Figure 27
52
L.RUN
SD
Figure 26 Option LED Labels
Table 19 LED Display
Switches on when data is being received normally. Turns off when the
receive data is interrupted.
Lights whenever data is sent.
Light whenever data is received.
Lights when a CRC or abort error occurs.
Power
CPU
supply
Figure 27 Connecting a Single Drive
YASKAWA ELECTRIC TOBP C730600 83C YASKAWA AC Drive Option SI-C3 Installation Manual
GA700 and GA800 Label
Master
device
Station 1
Drive
CC-Link
Option