6.5 Minor Faults/Alarms
364 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Code Name Causes Possible Solutions
dnE Drive Disabled A terminal set for H1-xx = 6A [Drive
Enable] turned OFF.
Examine the operation sequence.
Note:
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 Causes Possible Solutions
dWA2 DriveWorksEZ Alarm 2 There was an error in the
DriveWorksEZ program.
Examine the DriveWorksEZ program and remove
the cause of the error. This is not a drive fault.
Note:
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 Causes Possible Solutions
dWA3 DriveWorksEZ Alarm 3 There was an error in the
DriveWorksEZ program.
Examine the DriveWorksEZ program and remove
the cause of the error. This is not a drive fault.
Note:
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 Causes Possible Solutions
dWAL DriveWorksEZ Alarm There was an error in the
DriveWorksEZ program.
Examine the DriveWorksEZ program and remove
the cause of the error. This is not a drive fault.
Note:
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 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:
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
• If the drive detects this error, it will operate the motor as specified by the stop method set in F6-25 [MECHATROLINK Watchdog
Error Sel].
Code Name Causes Possible Solutions
EF FWD/REV Run Command
Input Error
A forward command and a reverse
command were input at the same time
for longer than 0.5 s.
Examine the forward and reverse command
sequence and correct the problem.
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 Causes Possible Solutions
EF0 Option Card External Fault The communication option card
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.
Programming error occurred on the
controller side.
Examine the operation of the controller program.
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 assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
• Set the stopping method for this fault 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.
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