YASKAWA A1000 Series Quick Start Manual page 115

Digital Operator Display
Er-08
Cause
Motor data entered during Auto-Tuning
was incorrect.
Drive-calculated values outside
parameter setting range or the tuning
process took too long.
The load during rotational Auto-tuning
was too high.
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 during Rotational Auto-Tuning
was too high.
Digital Operator Display
Er-10
Cause
The encoder signal lines are not properly
connected to the drive.
Motor 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.
Digital Operator Display
Er-12
Cause
One of the motor phases is missing:
(U/T1, V/T2, W/T3).
Current exceeded the current rating of
the drive.
The current is too low.
Attempted Auto-Tuning without motor
connected to the drive.
Current detection signal error.
Digital Operator Display
Er-13
Cause
Drive was unable to complete tuning for
leakage inductance within 300 seconds.
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
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).
• Check if it is possible to disconnect the machine from the motor.
• Check the settings of parameters L7-01 and L7-02.
• 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 turning the motor manually in forward direction. If the
sign displayed is negative, change the setting of parameter F1-05.
Uncouple the motor from the load and repeat Auto-Tuning.
Motor Speed Fault
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor, if possible.
Current Detection Error
Check motor wiring and correct any problems.
• Check the motor wiring for a short between motor lines.
• If a magnetic contactor is used between motors, make sure it is closed.
• Replace either the control board or the entire drive. For instructions on replacing the control board,
contact Yaskawa or your nearest sales representative.
Connect the motor and perform Auto-Tuning.
Replace either the control board or the entire drive. For instructions on replacing the control board,
contact Yaskawa or your nearest sales representative.
Leakage Inductance Error
• Check all wiring and correct any mistakes.
• Double check the motor rated current value that was entered to T1-04 for Auto-Tuning.
• Check the motor rated current value written on the motor nameplate and enter the correct value.
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5 Troubleshooting
5
115