YASKAWA GA800 Technical Reference page 409

Code Name
Er-04 Line-to-Line Resistance Error
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
Code Name
Er-11 Motor Speed Error
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
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.
There is a defective motor cable or cable connection.
The motor nameplate data entered during Auto-
Tuning is incorrect.
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.
Causes
The torque reference during acceleration is too high
(100%).
7.7 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.
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.
Possible Solutions
• Increase the value set in C1-01 [Acceleration Time 1].
• Disconnect the machine from the motor and do Rotational Auto-
Tuning again.
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