7.4 Origin Search (Fn003)7-57 Utility Functions (Fn)7.4 Origin Search (Fn003)The origin search is designed to position the origin pulse position of the incremental encoder (phase-C) and toclamp at the position.This mode is used when the motor shaft needs to be aligned to the machine.Motor speed at the time of execution: 60 min -1(For SGMCS direct drive motors, the speed at the time of execution is 6 min -1.)(1) Settings before OperationThe following settings are required before performing an origin search.• If the S-ON input signal is ON, turn OFF the signal.• If Pn50A.1 is set to 7 (i.e., the servo is always ON), change the value.(2) Operating ProcedureFollow the steps below to execute the origin search.CAUTION• Perform origin searches without connecting the coupling.The forward run prohibited (P-OT) and reverse run prohibited (N-OT) signals are not effective in originsearch mode.For aligning the motorshaft with the machineServomotor MachineStep Display afterOperation Keys Description1 Press the MODE/SET Key to select the utility functionmode.2 Press the UP or DOWN Key to select the Fn003.3Press the DATA/SHIFT Key for approximately one second,and the display shown on the left appears.Note: When "no-oP" blinks for approximately one second,the write prohibited setting is set in Fn010. Changethe setting in Fn010, and press the key again afterenabling writing. (Refer to 7.12.)4 Press the MODE/SET Key.The servo turns ON.5Pressing the UP Key will rotate the motor in the forwarddirection. Pressing the DOWN Key will rotate the motor inthe reverse direction. The rotation of the servomotorchanges according to the setting of Pn000.0.Note: Direction when viewed from the load of the servomo-tor.MODE /SET DATA /MODE/SET DATA/MODE/SET DATA/MODE /SET DATA /MODE/SET DATA/Parameter UP key(Forward)DOWN key(Reverse)Pn000 n.0 CCW CWn.1 CW CCW
