YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
121
Code
Name
Causes
Possible Solutions
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.