YASKAWA GA500 Maintenance & Troubleshooting page 63

Code Name
E5 MECHATROLINK Watchdog Timer
Err
Note:
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor as specified by the stopping method set in F6-25 [MECHATROLINK Watchdog Error Sel].
Code Name
FWD/REV Run Command Input
EF
Error
Note:
• If the drive detects EF, the motor will ramp to stop.
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF0 Option Card External Fault
Note:
• The drive detects this error if the alarm function on the external device side is operating.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor as specified by the stopping method set in F6-03 [Comm External Fault (EF0) Select].
Code Name
EF1 External Fault (Terminal S1)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.
Code Name
EF2 External Fault (Terminal S2)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.
Code Name
EF3 External Fault (Terminal S3)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.
Code Name
EF4 External Fault (Terminal S4)
YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING
Causes
The drive detected a watchdog circuit exception while
it received data from the controller.
Causes
A forward command and a reverse command were
input at the same time for longer than 0.5 s.
Causes
The communication option card received an external
fault from the controller.
A programming error occurred on the controller side.
Causes
MFDI terminal S1 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-01 = 2C to 2F] is set to MFDI
terminal S1, but the terminal is not in use.
Causes
MFDI terminal S2 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-02 = 2C to 2F] is set to MFDI
terminal S2, but the terminal is not in use.
Causes
MFDI terminal S3 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-03 = 2C to 2F] is set to MFDI
terminal S3, but the terminal is not in use.
Causes
MFDI terminal S4 caused an external fault through an
external device.
The wiring is incorrect.
2.5 Minor Faults/Alarms
Possible Solutions
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)
Possible Solutions
Examine the forward and reverse command sequence and correct
the problem.
Possible Solutions
1. Find the device that caused the external fault and remove the
caus.
2. Clear the external fault input from the controller.
Examine the operation of the controller program.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S1.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S2.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S3.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S4.
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