YASKAWA FSDrive-MV1000 Series - Page 175

5.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions 175
Troubleshooting
5
Digital Operator Display Error Name
End7 No-Load Current Alarm
Cause Possible Solutions
The entered no-load current value was outside
the allowable range.
Check and correct faulty motor wiring.
Auto-Tuning results were less than 5% of the
motor rated current.
Double-heck the data entered for the Auto-Tuning process.
Digital Operator Display Error Name
Er-01 Motor Data Error
Cause Possible Solutions
Motor data or data entered during Auto-Tuning
was incorrect.
• Check that the motor data entered to T1 parameters matches motor nameplate input before
Auto-Tuning.
• Enter the correct information and start Auto-Tuning over again.
Motor output power and motor-rated current
settings (T1-02 and T1-04) do not match.
• Check the drive and motor capacities.
• Correct the settings of parameters T1-02 and T1-04.
Motor rated current and detected no-load current
are not consistent with another.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Base frequency and motor rated speed (T1-05
and T1-07) do not match.
Set T1-05 and T1-07 to the correct values.
Digital Operator Display Error Name
Er-02 Minor Fault
Cause Possible Solutions
Motor data or data entered during Auto-Tuning
was incorrect.
• Check that the motor data entered to T1 parameters matches motor nameplate input before
Auto-Tuning.
• Enter the correct information and restart Auto-Tuning.
Wiring is incorrect. Check and modify the wiring.
Load is too heavy.
• Check the circumference of the machine.
• Check the load.
Digital Operator Display Error Name
Er-03 STOP Button Input
Cause Possible Solutions
Auto-Tuning canceled by pressing STOP button. Auto-Tuning did not complete properly. Restart Auto-Tuning.
Digital Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Er-05 No-Load Current Error
Er-08 Rated Slip Error
Cause Possible Solutions
Motor data or data entered during Auto-Tuning
was incorrect.
• Check that the motor data entered to T1 parameters matches motor nameplate input before
Auto-Tuning.
• Restart Auto-Tuning and enter the correct information.
The tuning process took too long.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
Results from Auto-Tuning are outside the
parameter setting range.
Digital Operator Display Error Name
Er-09 Acceleration Error (detected only during Rotational Auto-Tuning)
Cause Possible Solutions
The motor did not accelerate for the specified
acceleration time.
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor, if possible.
Torque limit when motoring is too low (L7-01
and L7-02).
• Check the settings of parameters L7-01 and L7-02.
• Increase the setting.