71[Preparation]PreparationAfter setting up tuning, return to SELECT DISPLAY, referring to structure of each mode (P.60 and 61). Don't disconnect the console from the driver between and Should the connector is pulled out, insert it again and repeat the procedures from the beginning. If the following status occurs during the tuning action, the tuning error occurs. (1) During the tuning action, 1) when an error occurs, 2) when turned to Servo-OFF, 3) even the deviation counteris cleared, 4) when the tuning is actuated close to the limit switch and 5) when the main power is shut off. (2) When the output torque is saturated because the inertia or load is too large. (3) When the tuning can not be executed well causing oscillation. If the tuning error occurs, value of each gain returns to the previous value before the tuning. Thedriver does not trip except error occurrence. Depending on the load, the driver might oscillate withoutbecoming tuning error. (not showing )Extra attention should be paid to secure the safety.Starting of the motorTuning finishes.Tuning errorTuning completesmachine stiffness No. (1 to 9, A (10) to F (15)) For machine stiffness No., refer to P.238. To prevent the loss ofgain value due to thepower shutdown, writeinto EEPROM.Press to make EXECUTION DISPLAY toStarting from the initial LED status, press three time after pressing , then brings the display of normal auto-gain tuning, then press to select the machine stiffness No.After inhibiting command input, and during Servo-On status,keep pressing until Console (LED) display changes to .“ ” increases by pressing (approx. 5sec) as the left fig. shows.Auto-Gain Tuning ModeNormal Mode Auto-Gain Tuning Screen• For details of normal auto-gain tuning, refer to P.236, "Normal Auto-Gain Tuning" of Adjustment. Pay aspecial attention to applicable range and cautions.• The motor will be driven in a preset pattern by the driver in normal auto-gain tuning mode. You can changethis pattern with Pr25 (Setup of action at normal auto-gain tuning), however, shift the load to where theoperation in this pattern may not cause any trouble, then execute this tuning.• Depending on the load, oscillation may occur after the tuning. In order to secure the safety, use theprotective functions of Pr26 (Setup of software limit), Pr70 (Setup of excess position deviation) or Pr73(Setup of over-speed level).Operation at SELECTION displayOperation at EXECUTION display
