Yaskawa 1000 Series Drive Option - CC-Link Technical Manual - Manual (Page 24)

9 Troubleshooting
24 YASKAWA ELECTRIC SIEP C730600 44A YASKAWA AC Drive-Option Card CC-Link Technical Manual
■ 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 11
Figure 11 Connecting a Single Drive
Table 16 LED Fault Display for CC-Link Option with a Single Drive
Note: SD and RD may appear to flash with slower baud rates.
{: On / †: Flashing / ×: Off / ∗: Either on or off
L.RUN SD RD L.ERR Cause Possible Solution
{ { { × Normal communications –
{ { { † Error has occurred but communication is normal ⇒Remove the source of noise interference.
{ { × † Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
{ { × × Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
{ × { †
CRC error with the data received, and no response can be
sent
⇒Remove the source of noise interference.
{ × { × No station address received ⇒Check the PLC program and the operation where the problem occurred.
{ × × † Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
{ × × × Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
× { { †
A response was received after polling, but a CRC error
occurred when the reflex data was checked
⇒Remove the source of noise interference.
× { { × Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
⇒See if the master device is actually set to function as a remote device station.
× { × † Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
× { × × Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
× × { † CRC errors occurs when the station address is checked. ⇒Remove the source of noise interference.
× × { ×
• No station address
• Cannot receive station address due to noise interference
⇒Remove the source of noise interference.
× × × † Problem with the hardware
⇒Try cycling the power.
Replace the CC-Link Option if the problem continues.
× × × ×
Data cannot be received (CC-Link communications cable
may be disconnected)
⇒Check the wiring.
× × ∗ {
The station address or communications speed is set
incorrectly
⇒Enter the proper settings and cycle power.
{ { { †
The station address or communications speed was changed
without cycling power afterwards. ⇒Return any incorrect settings to their original values and cycle power.
⇒Enter the proper settings and cycle power.
Power
supply
CPU
Master
device
Station 1
DRIVE
CC-Link
Option