YASKAWA GA700 Series

7.4 Fault
328 YASKAWA SIEPC71061705H GA700 Series Technical Manual
Code Name Causes Possible Solutions
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.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
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)
Note:
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the stop method set in F6-25 [MECHATROLINK Watchdog Error Sel].
Code Name Causes Possible Solutions
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.
Note:
• The drive detects this fault if the alarm function on the external device side is operating.
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the stop method set in F6-03 [Comm External Fault (EF0) Select].
Code Name Causes Possible Solutions
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.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
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.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
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.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
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.
Note:
Do a Fault Reset to clear the fault.