YASKAWA FSDrive-MV1000 Instructions Manual page 144

5.7 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 output power and motor-rated current
settings (T1-02 and T1-04) do not match.
Motor rated current and detected no-load
current are not consistent with another.
Base frequency and motor rated speed (T1-05
and T1-07) do not match.
Digital Operator Display
Er-02
Cause
Motor data or data entered during Auto-
Tuning was incorrect.
Wiring is incorrect.
Load is too heavy.
Digital Operator Display
Er-03
Cause
Auto-Tuning canceled by pressing STOP
button.
Digital Operator Display
Er-04
Er-05
Er-08
Cause
Motor data or data entered during Auto-
Tuning was incorrect.
The tuning process took too long.
Results from Auto-Tuning are outside the
parameter setting range.
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).
144
No-Load Current Alarm
⇒Check and correct faulty motor wiring.
⇒Double check the data that was 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.
⇒Enter the correct information and start Auto-Tuning over again.
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.
⇒Set T1-05 and T1-07 to the correct value.
Minor Fault
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.
⇒Check and modify the wiring.
⇒Check the circumference of the machine.
⇒Check the load.
STOP Button Input
⇒Auto-Tuning did not complete properly and will have to be performed again.
Line-to-Line Resistance Error
No-Load Current Error
Rated Slip Error
Check that the motor data entered to T1 parameters matches motor nameplate input before
Auto-Tuning.
⇒Start Auto-Tuning over again and enter the correct information.
⇒Check and correct faulty motor wiring.
⇒Disconnect the motor from machine and perform Rotational Auto-Tuning.
Acceleration Error (detected only during Rotational Auto-Tuning)
⇒Increase the acceleration time (C1-01).
⇒Disconnect the machine from the motor, if possible.
Check the settings of parameters L7-01 and L7-02.
⇒Increase the setting.
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Possible Solution
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YASKAWA ELECTRIC EZZ010928 FSDrive-MV1000 Instructions