YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
123
Code
Name
Causes
Possible Solutions
EF6
External Fault
(Terminal S6)
MFDI terminal S6 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 S6.
External Fault [H1-06 = 20 to
2B]
is set to MFDI terminal S6,
but the terminal is not in use.
Correctly set the MFDI.
EF7
External Fault
(Terminal S7)
MFDI terminal S7 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 S7.
External Fault [H1-07 = 20 to
2B]
is set to MFDI terminal S7,
but the terminal is not in use.
Correctly set the MFDI.
Err
EEPROM Write Error
There was a problem with the
EEPROM hardware.
•
Re-energize the drive.
•
If the fault stays, replace the control
board or the drive. Contact Yaskawa
or your nearest sales representative to
replace the board.
Electrical interference corrupted
the data while it was writing to
the EEPROM of the drive.
•
Push ENTER Key.
•
Set the parameters again.
FbH
Excessive PID
Feedback
The
FbH
detection level is set
incorrectly.
Adjust
b5-36 [PID High Feedback
Detection Lvl]
and
b5-37 [PID High
Feedback Detection Time]
.
There is a problem with the PID
feedback wiring.
Correct errors with the PID control
wiring.
The feedback sensor is not
operating correctly.
Examine the sensors on the control
device side.
A fault occurred in the feedback
input circuit of the drive.
Replace the control board or the drive.
For information about replacing the
control board, contact Yaskawa or your
nearest sales representative.
FbL
PID Feedback Loss
The
FbL
detection level is set
incorrectly.
Adjust
b5-13 [PID Feedback Loss
Detection Lvl]
and
b5-14 [PID Feedback
Loss Detection Time]
.
There is a problem with the PID
feedback wiring.
Correct errors with the PID control
wiring.