6.4 Faults
344 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Code Name Causes Possible Solutions
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. For information about replacing the
control board, contact Yaskawa or your nearest
sales representative.
Electrical interference corrupted the
data while it was writing to the
EEPROM of the drive.
• Push .
• 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.
• Check U4-03 [Cooling Fan Ope Time] and U4-
04 [Cool Fan Maintenance]. If the performance
life of the circulation fan is expired or if there is
damage to the fan, replace the fan.
There is a problem with the power
supply of the electromagnetic contactor
and the circulation fan.
1. Re-energize the drive.
2. If the fault stays, replace the control board or
the drive. For information about replacing the
control board, contact Yaskawa or your nearest
sales representative.
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.
• Check 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.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
FbH Excessive PID Feedback The FbH detection level is set
incorrectly.
Adjust b5-36 [PID High Feedback Detection Lvl]
and b5-37 [PID High Feedback Detection Time].
There is a problem with the PID
feedback wiring.
Correct errors with the PID control wiring.
The feedback sensor is not operating
correctly.
Examine the sensors on the control device side.
To Next Page
Loading...
