6.4 Faults
348 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Code Name Causes Possible Solutions
Motor speed is not stable. If A1-02 = 6 [Control Method Selection = PM
Advanced Open Loop Vector], decrease the value
set in n8-11 [Observer Calculation Gain 2] in
increments of 10.
The current flowing in the motor is
more than the value set in L8-27
[Overcurrent Detection Gain] for PM
Control Methods.
Correct the value set in L8-27.
The control method is set incorrectly for
the motor.
Set A1-02 [Control Method Selection] correctly.
The motor main circuit cable is too
long.
Replace the drive with a larger capacity model.
Note:
• This fault occurs if the drive sensors detect a drive output current more than the specified overcurrent detection level.
• Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
oFA00 Option Not Compatible
with Port
The option card connected to connector
CN5-A is not compatible.
Connect the option card to the correct connector.
Note:
Encoder option cards are not compatible with
connector CN5-A.
Note:
• Do a Fault Reset to clear the fault.
• Fault trace is not available for this fault.
Code Name Causes Possible Solutions
oFA01 Option Fault/Connection
Error
The option card connected to connector
CN5-A is not compatible.
1. De-energize the drive.
2. Refer to the option card manual and correctly
connect the option card to the connector on the
drive.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
oFA02 Duplicate Options The same option cards or the same type
of option cards are connected to
connectors CN5-A, B, and C.
Connect the option card to the correct connector.
Note:
Use connectors CN5-C and CN5-B to connect
two encoder option cards.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
oFA03 to
oFA06
Option Card Error Occurred
at Option Port CN5-A
A fault occurred in the option card. 1. De-energize the drive.
2. Make sure that the option card is correctly
connected to the connector.
3. If the problem continues, replace the option
card.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
oFA10,
oFA11
Option Card Error Occurred
at Option Port CN5-A
A fault occurred in the option card. 1. De-energize the drive.
2. Make sure that the option card is correctly
connected to the connector.
3. If the problem continues, replace the option
card.
Note:
Do a Fault Reset to clear the fault.
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