YASKAWA
TOEPC71061737D GA800 DRIVE INSTALLATION & PRIMARY OPERATION
139
Code
Name
Causes
Possible Solutions
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.
The screws on the drive output terminals are loose.
Tighten the terminal screws to the correct tightening torque.
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.
There is a problem with the EEPROM data.
Set
A1-03 = 2220, 3330 [Initialize Parameters = 2-Wire
Initialization, 3-Wire Initialization]
to initialize the drive, then
upload the DriveWorksEZ project to the drive again.
dWF2
DriveWorksEZ Fault 2
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.
dWF3
DriveWorksEZ Fault 3
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.
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.
A programming error occurred on the controller side.
Examine the operation of the controller program.
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.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S1.
External Fault [H1-01 = 20 to 2B]
is set to MFDI
terminal S1, but the terminal is not in use.
Correctly set 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.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S2.
External Fault [H1-02 = 20 to 2B]
is set to MFDI
terminal S2, but the terminal is not in use.
Correctly set 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.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S3.
External Fault [H1-03 = 20 to 2B]
is set to MFDI
terminal S3, but the terminal is not in use.
Correctly set 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.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S4.
External Fault [H1-04 = 20 to 2B]
is set to MFDI
terminal S4, but the terminal is not in use.
Correctly set 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.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S5.