YASKAWA GA50U Series

13 Troubleshooting
130 YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation
Code Name Causes Possible Solutions
Er-09 Acceleration Error
The motor did not accelerate for
the specified acceleration time.
1. Increase the value set in C1-01
[Acceleration Time 1].
2. Disconnect the machine from the motor
and do Rotational Auto-Tuning again.
The value of L7-01 or L7-02
[Forward/Reverse Torque Limit] is
small.
Increase the value set in L7-01 or L7-02.
Rotational Auto-Tuning was done
with a load that was more than
30% of the rating connected to the
motor.
• 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.
Er-10 Motor Direction Error
There is defective drive and motor
wiring.
Examine and repair motor wiring.
There is defective drive and
encoder wiring.
Examine and repair the wiring to the
encoder.
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.
Disconnect the machine from the motor and
do Rotational Auto-Tuning again.
Er-11 Motor Speed Error
The torque reference during
acceleration is too high (100%).
• Increase the value set in C1-01
[Acceleration Time 1].
• Disconnect the machine from the motor
and do Rotational Auto-Tuning again.
Er-12 Current Detection Error
There is a phase loss in the drive
input power. (U/T1, V/T2, W/T3)
Examine and repair motor wiring.
The current exceeded the current
rating of the drive.
The output current is too low.
• Check the motor wiring for any short
circuits between the wires.
• Check and turn ON any magnetic
contactors used between motors.
• Replace the control board or the drive.
For information about replacing the
control board, contact Yaskawa or your
nearest sales representative.
You tried Auto-Tuning without a
motor connected to the drive.
Connect the motor and do Auto-Tuning.
There was a current detection
signal error.
Replace the control board or the drive. For
information about replacing the control
board, contact Yaskawa or your nearest sales
representative.
Er-13
Leakage Inductance
Alarm
The motor rated current value is
incorrect.
Correctly set the rated current indicated on
the motor nameplate and perform Auto-
Tuning again.
The drive could not complete
tuning for leakage inductance in
fewer than 300 seconds.
Examine and repair motor wiring.
Er-14 Motor Speed Error 2
The motor speed was more than
two times the amplitude of speed
reference during Inertia Tuning.
Decrease the value set in C5-01 [ASR
Proportional Gain 1].