YASKAWA GA700 Technical Manual page 383

Code Name
Er-05 No-Load Current Error
Code Name
Er-08 Rated Slip Error
Code Name
Er-09 Acceleration Error
Code Name
Er-10 Motor Direction Error
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Causes
The Auto-Tuning results were not in the
applicable parameter setting range.
Auto-Tuning did not complete in a pre-
set length of time.
The motor nameplate data entered
during Auto-Tuning is incorrect.
Rotational Auto-Tuning was done with
a load that was more than 30% of the
rating connected to the motor.
Causes
The motor nameplate data entered
during Auto-Tuning is incorrect.
Auto-Tuning did not complete in a pre-
set length of time.
The Auto-Tuning results were not in the
applicable parameter setting range.
Rotational Auto-Tuning was done with
a load that was more than 30% of the
rating connected to the motor.
Causes
The motor did not accelerate for the
specified acceleration time.
The value of L7-01 or L7-02 [Forward/
Reverse Torque Limit] is small.
Rotational Auto-Tuning was done with
a load that was more than 30% of the
rating connected to the motor.
Causes
There is defective drive and motor
wiring.
There is defective drive and encoder
wiring.
The direction of the motor and the
setting of F1-05 [PG 1 Rotation
Selection] are opposite.
The machine pulled the motor to rotate
in the opposite direction.
When the torque reference is 100% or
higher, the sign of the speed reference
was opposite of the detected speed.
6.7 Auto-Tuning Errors
Possible Solutions
• Examine and repair motor wiring.
• Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
• Make sure that the input motor nameplate data is
correct.
• Do Auto-Tuning again and correctly set the
motor nameplate data.
• Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
• If you cannot uncouple the motor and load, make
sure that the load is less than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solutions
• Make sure that the input motor nameplate data is
correct.
• Do Auto-Tuning again and correctly set the
motor nameplate data.
• Examine and repair the motor wiring.
• If the motor and machine are connected during
Rotational Auto-Tuning, decouple the motor
from the machinery.
• Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
• If you cannot uncouple the motor and load, make
sure that the load is less than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solutions
1. Increase the value set in C1-01 [Acceleration
Time 1].
2. Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
Increase the value set in L7-01 or L7-02.
• Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
• If you cannot uncouple the motor and load, make
sure that the load is less than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solutions
Examine and repair motor wiring.
Examine and repair the wiring to the encoder.
Set F1-05 correctly.
Disconnect the machine from the motor and do
Rotational Auto-Tuning again.
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