Troubleshooting - YASKAWA SI-C3/V Technical Manual

9

Troubleshooting

 Drive-Side Error Codes
Drive-side error codes appear on the drive's LED operator. Causes of the errors and corrective actions are listed in
For additional error codes that may appear on the LED operator screen, refer to the V1000 Technical Manual.
 Faults
Both bUS (CC-Link Option Communication Error) and EF0 (External Fault Input from the CC-Link Option) can appear as an alarm or as a fault.
When a fault occurs, the digital operator ALM LED remains. When an alarm occurs, the digital operator ALM LED flashes.
If communication stops while the drive is running, answer the following questions to help remedy the fault:
• Is the CC-Link Option properly installed?
• Is the communication line properly connected to the CC-Link Option? Is it loose?
• Is the PLC program working? Has the PLC CPU stopped?
• Did a momentary power loss interrupt communications?
LED Operator Display
Cause
Master controller (PLC) has stopped communicating.
Communication cable is not connected properly.
A data error occurred due to noise
CC-Link Option is damaged.
LED Operator Display
Cause
An external fault is being sent from the master controller
(PLC).
Problem with the PLC program
LED Operator Display
Cause
Non-compatible option connected to the drive
LED Operator Display
Cause
Problem with the connectors between the drive and CC-
Link Option
LED Operator Display
Cause
CC-Link Option hardware fault
LED Operator Display
Cause
CC-Link Option hardware fault
YASKAWA ELECTRIC SIEP C730600 22C V1000 Option CC-Link Technical Manual
Table 16 Fault Display and Possible Solutions
CC-Link Option Communication Error
bUS
After establishing initial communication, the connection was lost.
Only detected when the run command or frequency reference is assigned to the option (b1-03 = 3 or b1-02 = 3).
Check for faulty wiring.
 Correct any wiring problems.
Check the various options available to minimize the effects of noise.
 Take steps to counteract noise in the control circuit wiring, main circuit lines, and ground wiring.
 If a magnetic contactor is identified as a source of noise, install a surge absorber to the contactor coil.
 Use cables recommended by Yaskawa, or another type of shielded line. The shield should be grounded on the PLC side and
on the CC-Link Option side.
 If there are no problems with the wiring and the error continues to occur, replace the CC-Link Option.
External Fault Input from CC-Link Option
EF0
The alarm function for an external device has been triggered.
 Remove the cause of the external fault.
 Reset the external fault input from the PLC device.
 Check the program used by the PLC and make the appropriate corrections.
CC-Link Option Fault (port A)
oFA00
CC-Link Option is not properly connected.
 Connect an option that is compatible with the drive.
CC-Link Option Fault (port A)
oFA01
CC-Link Option is not properly connected.
 Turn the power off and check the connectors between the drive and CC-Link Option.
CC-Link Option Fault (port A)
oFA03
CC-Link Option self-diagnostics error.
 Replace the CC-Link Option. Contact Yaskawa for assistance.
CC-Link Option Fault (port A)
oFA04
CC-Link Option Flash write mode
 Replace the CC-Link Option. Contact Yaskawa for assistance.
Table
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
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