YASKAWA GA800 Series - Page 110

19 Troubleshooting
110 YASKAWA TOEPC71061737B GA800 Drive Installation & Primary Operation
Code Name Causes Possible Solutions
The drive incorrectly detected the motor magnetic
pole position.
If the value for U6-57 [PolePolarityDeterVal] is lower than 819,
increase the value set in n8-84 [Polarity Detection Current].
Consult the motor manufacturer for information about maximum
setting values.
The setting of n8-84 [Polarity Detection Current] is
too low.
Increase the n8-84 setting from the default. Consult the motor
manufacturer for information about maximum setting values.
Pole Position Detection failed. If you are using an IPM motor, do High Frequency Injection Auto-
Tuning.
The PG option card or the encoder on the motor side
is damaged.
Repair the wiring and re-energize the drive, then replace the PG
option card or the PG if the problem continues.
dv7 Polarity Judge Timeout
There is a disconnection in the motor coil winding. Measure the motor line-to-line resistance and replace the motor if a
coil is disconnected.
dWF1
EEPROM Memory DWEZ Data
Error
There is an error in the EEPROM peripheral circuit. • 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.
dWFL DriveWorksEZ Fault
There was a fault in the DriveWorksEZ program. Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
E5
MECHATROLINK Watchdog Timer
Err
The drive detected a watchdog circuit exception while
it received data from the controller.
Examine the MECHATROLINK cable connection. If this error
occurs frequently, examine the wiring and decrease the effects of
electrical interference as specified by these manuals:
• MECHATROLINK-II Installation Guide (MECHATROLINK
Members Association, manual number MMATDEP011)
• MECHATROLINK-III Installation Manual (MECHATROLINK
Members Association, publication number MMATDEP018)
EF0 Option Card External Fault
The communication option received an external fault
from the controller.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input from the controller.
EF1 External Fault (Terminal S1)
MFDI terminal S1 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.
EF2 External Fault (Terminal S2)
MFDI terminal S2 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.
EF3 External Fault (Terminal S3)
MFDI terminal S3 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.
EF4 External Fault (Terminal S4)
MFDI terminal S4 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.
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.
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.
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.
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.
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.
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.
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].
FbL PID Feedback Loss
The FbL detection level is set incorrectly. Adjust b5-13 [PID Feedback Loss Detection Lvl] and b5-14 [PID
Feedback Loss Detection Time].