9 Troubleshooting
52
YASKAWA ELECTRIC
TOBP C730600 83C YASKAWA AC Drive Option SI-C3 Installation Manual
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Fault LED Display on Option Side
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Defining Option LED States
Figure 26
Figure 26 Option LED Labels
Table 19 LED Display
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?
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Faults that Occur with a Single Drive
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
Figure 27 Connecting a Single Drive
L.RUN
Switches on when data is being received normally. Turns off when the
receive data is interrupted.
SD
Lights whenever data is sent.
RD
Light whenever data is received.
L.ERR
Lights when a CRC or abort error occurs.
L.ERR
RD
L.RUN
SD
GA700 and GA800 Label
1000-Series Label
Power
supply
CPU
Master
device
Station 1
Drive
CC-Link
Option
TOBP_C730600_83C_3_0_E.fm 52 ページ 2018年10月24日 水曜日 午後5時59分