YASKAWA A1000 Series Quick Start Manual page 206

5.5 Auto-Tuning Fault Detection
Digital Operator Display
End7
Cause
The entered no-load current value was
outside the allowable range.
Auto-Tuning results were less than 5% of
the motor rated current.
Digital Operator Display
Er-01
Cause
Motor data or data entered during
Auto-Tuning was incorrect
.
Motor rated power and motor-rated current
settings (T1-02 and T1-04) do not match.
Motor rated current and detected no-load
current are inconsistent.
Base frequency and motor rated speed
(T1-05 and T1-07) do not match.
Digital Operator Display
Er-02
Cause
An alarm was triggered during Auto-
Tuning.
Motor data entered during Auto-Tuning
was incorrect.
Faulty cable connection
The load is too heavy
Digital Operator Display
Er-03
Cause
Auto-Tuning canceled by pressing STOP
button.
Digital Operator Display
Er-04
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.
Faulty motor cable or cable connection.
206
No-Load Current Alarm
Check and correct faulty motor wiring.
Double-check the data entered for the Auto-Tuning process.
Motor Data Error
• Check that the motor data entered to T1 parameters matches motor nameplate input before Auto-Tuning.
• Restart Auto-Tuning and enter the correct information.
• Check the drive and motor capacities.
• Correct the settings of parameters T1-02 and T1-04.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
• Correct the settings of parameters T1-05 and T1-07.
• Check that the correct number of poles were entered to T1-06.
Minor Fault
Exit the Auto-Tuning menu, check the alarm code, remove the alarm cause, and repeat Auto-Tuning.
• Check that the motor data entered matches the motor nameplate input before performing Auto-Tuning
(T1-02 to T1-07).
• Restart Auto-Tuning and enter the correct information.
• Check and correct faulty motor wiring.
• Check the vicinity of the machine.
• Check the load conditions.
• Investigate and correct the cause and then reset the fault.
STOP Button Input
Auto-Tuning did not complete properly. Restart Auto-Tuning.
Line-to-Line Resistance 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.
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
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