Troubleshooting - YASKAWA SI-P3 Technical Manual

9 Troubleshooting

9 Troubleshooting
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Drive-Side Error Codes
Drive-side error codes appear on the drive operator. Causes of the errors and corrective actions are listed in
may appear on the operator screen, refer to the Technical Manual for the drive.
Faults
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bUS (PROFIBUS-DP Option Communication Error) and EF0 (External Fault Input from the PROFIBUS-DP Option) may appear as an alarm or a
fault. When a fault occurs, the operator remains lit. When an alarm occurs, the operator flashes and the "ALM" light illuminates
If communication stops while the drive is running, check the following items to resolve the fault:
• Is the PROFIBUS-DP Option properly installed?
• Is the communication line properly connected to the PROFIBUS-DP Option? Is it loose?
• Is the controller program working? Has the controller CPU stopped?
• Did a momentary power loss interrupt communications?
Operator Display
Cause
Master controller (PLC) has stopped communicating.
Communication cable is not connected properly.
A data error occurred due to noise.
PROFIBUS-DP Option is damaged.
Operator Display
Cause
An external fault is being sent from the upper controller (PLC).
Problem with the upper controller (PLC) program.
Operator Display
Cause
Non-compatible option connected to the drive.
Operator Display
Cause
Problem with the connectors between the drive and
PROFIBUS-DP Option.
Operator Display
to
Cause
PROFIBUS-DP Option hardware fault
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Table 16 Fault Display and Possible Solutions
PROFIBUS-DP 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. Ground the shield on the controller side and on
the PROFIBUS-DP Option side.
• If there are no problems with the wiring and the error continues to occur, replace the PROFIBUS-DP Option.
External Fault Input from PROFIBUS-DP 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 upper controller (PLC) device.
• Check the program used by the upper controller (PLC) and make the appropriate corrections.
PROFIBUS-DP Option Fault (Port A)
oFA00
PROFIBUS-DP Option is not properly connected.
• Connect an option that is compatible with the drive.
PROFIBUS-DP Option Fault (Port A)
oFA01
PROFIBUS-DP Option is not properly connected.
• Turn the power off and check the connectors between the drive and PROFIBUS-DP Option.
PROFIBUS-DP Option Fault (port A)
oFA30 to oFA43
Communication ID error
⇒ Replace the PROFIBUS-DP Option. Contact Yaskawa for assistance.
YASKAWA ELECTRIC SIEP C730600 42A YASKAWA AC Drive-Option Card PROFIBUS-DP Technical Manual
Table 16. For additional error codes that
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution