User's Manual - Kitagawa Europe

MAC mini iH Series Maintenance Manual Adjustment3 Adjustment3.1. Servo AdjustmentWhen the work and the jig of unbalanced load are mounted to the rotary table, vibration and abnormalnoise may occur.In that case, the two adjustment methods of servo parameter to be adjusted are as follows:When changing the following servo parameter and operating the machine, and the changed parameteris improper against the machine, since vibration and abnormal noise may become intense, check themachine operation so that the machine can be stopped immediately after the parameter is changed.Adjustment method of inertia moment ratioThe inertial moment ratio of PRM513 is added every “50” from present value. Change a set valueuntil vibration and abnormal noise stop.Adjustment method of gainWhen the vibration and abnormal noise stop completely even if the above inertia moment ratiois adjusted, reduce the vibration and abnormal nose by setting PRM513 before adjusting thegains in the following list.MachinerigiditysettingnumberSpeed loopgainSpeed loopintegrationgainPosition loopgainTorqueinstruction filtertime constantInertia↑PRM510 PRM511 PRM512 PRM5841 150 6000 150 250 Large2 200 4500 200 2003 300 3000 300 1304 400 2000 400 1005 600 1500 600 70 Small‣ When the vibration and abnormal noise occur with the jig and WORK mounted,change the machine rigidity number to a low number.KITAGAWA I3-1