6.7 Auto-Tuning Fault Detection
362 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
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 ins
tructions 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.
Digital Operator Display Error Name
Er-13 Leakage Inductance Error
Cause Possible Solutions
Drive was unable to complete tuning for leakage
in
ductance within 300 seconds.
• Check all wiring and correct any mistakes.
• Double check the motor rated current value that w
as entered to T1-04 for Auto-Tuning.
• Check the motor rated current value written on the motor nameplate and enter the correct value.
Digital Operator Display Error Name
Er-14 Motor Speed Error 2
Cause Possible Solutions
The motor speed exceeded twice the amplitude of
speed reference during Inertia Tuning.
Reduce the ASR gain set to C5-01.
Digital Operator Display Error Name
Er-15 Torque Saturation Error
Cause Possible Solutions
The output torque reached the torque limit set in
L7-01
through L7-04 during Inertia Tuning.
• Increase the torque limits in L7-01 through L7-04 (but keep them within reasonable limits).
• First try reducing the test signal amplitude in T3-01 and repeat the tuning. If necessary, then try reducing the test signal frequency
(T3-02) and repeat the tuning.
Digital Operator Display Error Name
Er-16 Inertia Detection Error
Cause Possible Solutions
The inertia identified by the drive was abnormally
small or abnormally large during Inertia Tuning.
• First try reducing the test signal amplitude i
n T3-01 and repeat the tuning. If necessary, then try reducing the test signal frequency
(T3-02) and repeat the tuning.
• Check the basic motor inertia value entered to T3-03.
Digital Operator Display Error Name
Er-17 Reverse Prohibited Error
Cause Possible Solutions
Drive is prohibited from rotating the motor in
reverse while attempting to perform Inertia Tuning.
• Inertia Auto-Tuning cannot be performed if the drive is restricted from rotating in reverse.
• Assuming it is acceptable for the application to rotate in reverse, set b1-04 to 0 and then execute Inertia Tuning.
Digital Operator Display Error Name
Er-18 Induction Voltage Error
Cause Possible Solutions
The result of Back EMF Constant Tuning (induced
voltage) exceeds the allowable setting range.
Double check the data that was entered to the T2- parameters, and perform Auto-Tuning again.
Digital Operator Display Error Name
Er-19 PM Inductance Error
Cause Possible Solutions
The induced voltage constant inductance values set
to E5-08 or E5-09 exceed the allowable range.
Double check the data that was entered to the T2- parameters, and perform Auto-Tuning again.
Digital Operator Display Error Name
Er-20 Stator Resistance Error
Cause Possible Solutions
Stator resistance tuning attempted to set a value to
E5-06 that is outside the allowable setting range.
Double check the data that was entered to the T2- parameters, and perform Auto-Tuning again.
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