Sako SKI780 - Page 66

7.2 Troubleshooting List
Fault Name | Display Possible Causes Solutions
1: The output circuit is grounded | 1: Eliminate external faults.
or short circuited. 2: Perform the motor
2: Motor auto-tuning Is not autotuning.
performed. 3: Increase the
3: The acceleration time Is too acceleration time.
short. 4: Adjust the manual
Overcurrent 4: Manual torque boost or V/F torque boost or V/F curve.
during Err02 | curve is not appropriate. 5: Adjust the voltage to
acceleration 5: The voltage Is too low. normal range.
6: The startup operation Is 6: Select rotational speed
performed on the rotating motor. | tracking restart or start the
7: Asudden load ts added during | motor after it stops.
acceleration. 7: Remove the added load.
8: The AC drive model is of too 8: Select an AC drive of
small power class. higher power class.
1: The output circuit is grounded 1 Elinimareecarnal faults,
or short circuited.
2: Perform the motor
2: Motor auto-tuning Is not
autotuning.
performed. 3 th
Overcurrent 3: The deceleration time ts too clea cae
during Err03 | short deceleration time.
. 4: Adjust the voltage to
deceleration 4: The voltage ts too low. formaltranee
5: Asudden load is added during 5: Remove the added load.
deceleration: 6: Install the braking unit
6: The braking unit and braking anid Brakin vasiesee
resistor are not installed. 8 ,
} Migoutput circuits grounded 1: Eliminate external faults.
or short circuited.
‘ 2: Perform the motor
2: Motor auto-tuning is not :
autotuning.
Overcurrent performed. 3: Adjust the voltage to
atconstant | Err04 | 3: The voltage is too low. ea ego e
speed 4: Asudden load is added during ee.
operation.
5: The AC drive model ts of too
small power class.
4. Remove the added load.
5. Select an AC drive of
higher power class.
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