6.5 One-parameter Tuning (Fn203)6-436 Adjustments6.5.3 One-parameter Tuning ExampleThe following procedure is used for one-parameter tuning on the condition that the tuning mode is set to 2, or3. This mode is used to reduce positioning time.Step Measuring Instrument Display Example Operation1Measure the positioning time after setting the moment of iner-tia ratio (Pn103) correctly. Tuning will be completed if thespecifications are met here. The tuning results will be saved inthe SERVOPACK.2The positioning time will become shorter if the FF level isincreased. The tuning will be completed if the specificationsare met. The tuning results will be saved in the SERVOPACK.If overshooting occurs before the specifications are met, go tostep 3.3 Overshooting will be reduced if the FB level is increased. If theovershooting is solved, go to step 4.4The graph shows overshooting generated with the FF levelincreased in step 3. In this state, the overshooting occurs, butthe positioning setting time is short. The tuning will be com-pleted if the specifications are met. The adjustment results aresaved in the SERVOPACK. If overshooting occurs before thespecifications are met, repeat steps 3 and 4.If vibration occurs before the overshooting is eliminated, thevibration will be suppressed by the automatic notch filter andanti-resonance control.Note: The vibration frequencies may not be detected if thevibration is too small. If that occurs, press the Keyto forcibly detect the vibration frequencies.5 The adjustment results are saved in the SERVOPACK.Position error pulseReference pulse speedPositioning completed signal
