YASKAWA A1000 Series Quick Start Manual page 207

Digital Operator Display
Er-05
Cause
Motor data entered during Auto-Tuning
was incorrect.
Results from Auto-Tuning are outside the
parameter setting range or the tuning
process took too long.
The load was too high during Rotational
Auto-tuning.
Digital Operator Display
Er-08
Cause
Motor data entered during Auto-Tuning
was incorrect.
Results from Auto-Tuning are outside the
parameter setting range or the tuning
process took too long.
The load was too high during rotational
Auto-tuning.
Digital Operator Display
Er-09
Cause
The motor did not accelerate for the
specified acceleration time.
Torque limit when motoring is too low
(L7-01 and L7-02).
The load was too high during Rotational
Auto-Tuning.
Digital Operator Display
Er-10
Cause
The encoder signal lines are not properly
connected to the drive.
Motor direction and PG direction are
opposite.
The load pulled the motor in the opposite
direction of the speed reference and the
torque exceeded 100%.
Digital Operator Display
Er-11
Cause
Torque reference is too high.
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
No-Load Current Error
• Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and load cannot be uncoupled make
sure the load is lower than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Rated Slip Error
• Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and load cannot be uncoupled make
sure the load is lower than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Acceleration Error
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor if possible.
• Check L7-01 and L7-02 settings.
• Increase the setting.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and load cannot be uncoupled make
sure the load is lower than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Motor Direction Error
Check and correct wiring to the PG encoder.
Check the motor speed monitor U1-05 while manually turning the motor forward. If the sign displayed is
negative, change the setting of parameter F1-05.
Uncouple the motor from the load and restart Auto-Tuning.
Motor Speed Error
• Increase the acceleration time 1 (C1-01).
• Disconnect the machine from the motor if possible.
5.5 Auto-Tuning Fault Detection
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
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