6.7 Auto-Tuning Fault Detection
284 YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Digital Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect.
• 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.
Results from Auto-Tuning are outside the parameter
setting range or the tuning process took too long.
Check and correct faulty motor wiring.
Motor cable or cable connection faulty.
Digital Operator Display Error Name
Er-05 No-Load Current Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect.
• 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.
Results from Auto-Tuning are outside the parameter
setting range or the tuning process took too long.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
The load during Rotational Auto-tuning was too
high.
• 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.
Digital Operator Display Error Name
Er-08 Rated Slip Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect.
• 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.
Drive-calculated values outside parameter setting
range or the tuning process took too long.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning for V/f control (T1-01 = 3).
The load during rotational Auto-tuning was too high.
• 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.
Digital Operator Display Error Name
Er-09 Acceleration Error
Cause Possible Solutions
The motor did not accelerate for the specified
acceleration time.
• Increase the acceleration time (C1-01).
• Check if it is possible to disconnect the machine from the motor.
The load during Rotational Auto-Tuning for V/f
control (T1-01 = 3) was too high.
• 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.
Digital Operator Display Error Name
Er-11 Motor Speed Fault
Cause Possible Solutions
Torque reference is too high.
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor, if possible.
Digital Operator Display Error Name
Er-12 Current Detection Error
Cause Possible Solutions
One of the motor phases is missing:
(U/T1, V/T2, W/T3).
Check motor wiring and correct any problems.
Current exceeded the current rating of the drive. • 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.
The current is too low.
Attempted Auto-Tuning without motor connected to
the drive.
Connect the motor and perform Auto-Tuning.
Current detection signal error.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact Yaskawa or your nearest
sales representative.
SIEP_C710616_35.book 284 ページ 2015年11月30日 月曜日 午後2時2分