YASKAWA GA700 Series

Troubleshooting
7
7.4 Fault
YASKAWA SIEPC71061705H GA700 Series Technical Manual 329
Code Name Causes Possible Solutions
EF5 External Fault (Terminal S5)
MFDI terminal S5 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S5.
External Fault [H1-05 = 20 to 2B] is set to MFDI
terminal S5, but the terminal is not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF6 External Fault (Terminal S6)
MFDI terminal S6 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S6.
External Fault [H1-06 = 20 to 2B] is set to MFDI
terminal S6, but the terminal is not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF7 External Fault (Terminal S7)
MFDI terminal S7 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S7.
External Fault [H1-07 = 20 to 2B] is set to MFDI
terminal S7, but the terminal is not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF8 External Fault (Terminal S8)
MFDI terminal S8 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S8.
External Fault [H1-08 = 20 to 2B] is set to MFDI
terminal S8, but the terminal is not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
Err EEPROM Write Error
There was a problem with the EEPROM hardware. • Re-energize the drive.
• If the fault stays, replace the control board or the drive.
Contact Yaskawa or your nearest sales representative to
replace the board.
Electrical interference corrupted the data while it
was writing to the EEPROM of the drive.
• Push ENTER Key.
• Set the parameters again.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
FAn Internal Fan Fault
The circulation fan stopped operating correctly. • Examine circulation fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If there is damage to the circulation fan or
if the performance life of the fan is expired, replace the fan.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
FAn1 Drive Cooling Fan Fault
The cooling fan stopped operating correctly. • Examine cooling fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If the performance life of the cooling fan is
expired or if there is damage to the fan, replace the fan.
The circulation fan is damaged. • Examine circulation fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If there is damage to the circulation fan or
if the performance life of the fan is expired, replace the fan.
Note:
Do a Fault Reset to clear the fault.