9 Fault Diagnosis and Possible Solutions
YASKAWA ELECTRIC SIEP C730600 24A V1000 Option CANopen Technical Manual 25
9 Fault Diagnosis and Possible Solutions
◆ Drive-Side Error Codes
Drive-side error codes appear on the drive LED operator. Causes of the errors and corrective actions are listed in Table 6. For additional error codes
that may appear on the LED operator screen, refer to the instruction manual for the drive.
■ Faults
bUS (CANopen Option Communication Error) and EF0 (External Fault Input from the CANopen Option) may appear as an alarm or a fault. When
a fault occurs, the digital operator LEDs remain lit. When an alarm occurs, the digital operator LEDs flash and the “ALM” light illuminates
If communication stops while the drive is running, check the following items:
• Is the CANopen Option properly installed?
• Is the communication line properly connected to the CANopen Option? Is it loose?
• Is the controller program working? Has the controller CPU stopped?
• Did a momentary power loss interrupt communications?
Table 6 Fault Display and Possible Solutions
LED Operator Display Fault Name
bUS
CANopen Option Communication Error
After establishing initial communication, the connection was lost.
Only detected when the run command frequency reference is assigned to the option.
Cause Possible Solution
Master controller (PLC) has stopped communicating.
Check for faulty wiring.
⇒ Correct any wiring problems.
Communication cable is not connected properly.
A data error occurred due to noise.
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.
⇒ Make sure the cable used fulfills the CANopen requirements. Ground the shield on the controller side and on the
CANopen Option side.
CANopen Option is damaged. ⇒ If there are no problems with the wiring and the error continues to occur, replace the CANopen Option.
CANopen Option is not properly connected to the drive.
The connector pins on the CANopen Option are not properly seated with the connector pins on the drive.
⇒ Reinstall the CANopen Option
LED Operator Display Fault Name
EF0
External Fault Input from CANopen Option
The alarm function for an external device has been triggered.
Cause Possible Solution
An external fault is being sent from the upper controller (PLC).
⇒ Remove the cause of the external fault.
⇒ Reset the external fault input from the upper controller (PLC) device.
Problem with the upper controller (PLC) program. ⇒ Check the program used by the upper controller (PLC) and make the appropriate corrections.
LED Operator Display Fault Name
oFA00
CANopen Option Fault
CANopen Option is not properly connected.
Cause Possible Solution
Non-compatible option connected to the drive. ⇒ Connect an option that is compatible with the drive.
LED Operator Display Fault Name
oFA01
CANopen Option Fault
CANopen Option is not properly connected.
Cause Possible Solution
Problem with the connectors between the drive and CANopen
Option.
⇒ Turn the power off and check the connectors between the drive and CANopen Option.
LED Operator Display Fault Name
oFA03
CANopen Option Fault
CANopen Option self-diagnostics error.
Cause Possible Solution
CANopen Option hardware fault. ⇒ Replace the CANopen Option.
To Next Page
Loading...
