Autotuning Alarms And Faults - YASKAWA L7B Quick Start Manual

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General Precautions:

1. Use rotating autotuning whenever high precision is required or for a motor that is not connected to a load.

2. Use not rotating autotuning whenever the load cannot be disconnected from the motor (e.g. the ropes can't be

removed).

IMPORTANT

3. Make sure, that the mechanical brake is not open for not rotating autotuning.

4. During autotuning the motor contactors have to be closed.

5. For autotuning the BB and BB1 signals must be ON (Inverter must not be in base block condition).

6. Confirm, that the motor is mechanically fixed and can not move.

7. Power is supplied during auto tuning, even though the motor does not turn. Do not touch the motor until auto-

tuning has been completed.

8. Remove the feather key from the motor shaft before performing a tuning with rotating motor with a stand alone

motor (no traction sheave or gear mounted).

9. To cancel autotuning, press the STOP key on the Digital Operator.

Precautions for rotating and encoder offset autotuning:

1. The load should be disconnected which means, that the ropes have to be removed and the brake must be open.

2. If the load can't be removed, the tuning can be done with a balanced car. The tuning result accuracy will be

lower which can result in a performance loss.

3. Make sure that the brake is open during autotuning.

4. During autotuning the motor can be started and stopped repeatedly. When the tuning is finished, "END" will be

displayed in the operator panel. Do not touch the motor until this display is shown and the motor has completely

stopped.