YASKAWA GA700 Technical Manual page 317

Code Name
Er-05 No-Load Current Alarm
Code Name
Er-08 Adjusted Slip Calculation
Error
Code Name
Er-09 Acceleration Error
Code Name
Er-10 Motor Rotation Direction
Error
Code Name
Er-11 Motor Speed Error
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Cause
The Auto-Tuning results were outside
the allowable parameter setting range.
Auto-Tuning did not end within a
prescribed amount of time.
The motor nameplate data entered
during Auto-Tuning is incorrect.
Rotational Auto-Tuning was performed
with a load exceeding 30% of the rating
connected to the motor.
Cause
The motor nameplate data entered
during Auto-Tuning is incorrect.
Auto-Tuning did not end within a
prescribed amount of time.
The Auto-Tuning results were outside
the allowable parameter setting range.
Rotational Auto-Tuning was performed
with a load exceeding 30% of the rating
connected to the motor.
Cause
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 performed
with a load exceeding 30% of the rating
connected to the motor.
Cause
The wiring of the drive and motor is
faulty.
The wiring of the drive and PG is faulty. Check and correct wiring to the encoder.
Motor direction and the F1-05 [PG 1
Rotation Selection] setting are opposite.
The motor, pulled by the machine,
rotated in the opposite direction.
When the torque reference is 100% or
higher, the sign of the speed reference
was opposite that of the detected speed.
Cause
The torque reference during acceleration
is too high (100%).
6.7 Auto-Tuning Errors
Possible Solution
• Check and correct faulty motor wiring.
• Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
• Check whether the motor nameplate data input at
the time of Auto-Tuning is correct.
• Perform Auto-Tuning again and correctly set the
data that appears on the motor nameplate.
• Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
• If motor and load cannot be uncoupled, make
sure the load is lower than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solution
• Check whether the motor nameplate data input at
the time of Auto-Tuning is correct.
• Correctly set the data from the motor nameplate,
then perform Auto-Tuning again.
• Check and correct 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
perform Rotational Auto-Tuning again.
• If motor and load cannot be uncoupled, make
sure the load is lower than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solution
1. Increase the value set in C1-01 [Acceleration
Time 1].
2. Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
Increase the value set in L7-01 or L7-02 [Forward/
Reverse Torque Limit].
• Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
• If motor and load cannot be uncoupled, make
sure the load is lower than 30% of the motor
rating. If a mechanical brake is installed in the
motor, release the brake during Rotational Auto-
Tuning.
Possible Solution
Check and correct faulty motor wiring.
Set F1-05 correctly.
Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
Possible Solution
• Increase the value set in C1-01 [Acceleration
Time 1].
• Disconnect the machine from the motor and
perform Rotational Auto-Tuning again.
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