Fuji Electric ALPHA5 Smart, User Manual

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CHAPTER 4 PARAMETER
4-58
Automatic Operation Setting Parameter
4

At the rotation direction selection point with zero speed, zero speed and in-position [INP]
are momentarily turned on. The signal change may fail to be sensed according to some
scanning periods of the host controller.
If the home position LS (PA2_12) is not found during travel from the homing starting position in the
reverse traveling unit amount for homing (PA2_09), the motion changes in the starting direction for
homing and the home position LS (PA2_12) is searched for. If the home position LS (PA2_12) is
not found during the motion in the starting direction for homing until OT in the starting direction for
homing is detected, the motion reverses and the reference signal for homing (Deceleration starting
signal) and reference signal for shift operation are searched for.
(1) The motion starts upon at the rising edge (OFF
→ ON) of homing [ORG] in the direction
opposite to the starting direction for homing (PA2_08) at the homing speed (PA2_06).
(2) If the home position LS (PA2_12) is not found during travel by the reverse traveling unit
amount for homing (PA2_09), the motion changes in the starting direction for homing
(PA2_08) at the homing speed (PA2_06).
(3) If OT in the starting direction for homing (PA2_08) is found while the home position LS
(PA2_12) is not found, the motion reverses at the homing speed (PA2_06).
(4) If the home position LS (PA2_12) is found during reverse rotation, the motion changes in the
homing direction after reference signal detection (PA2_10) at the creep speed for homing
(PA2_07).
(5) Upon detection of the first encoder Z-phase (PA2_11) after detection of the home position LS
(PA2_12) during travel in the homing direction after reference signal detection (PA2_10), a
travel by the home position shift unit amount (PA2_14) continues, followed by stoppage. The
stopping point changes to the home position and homing completion is turned on and the
homing process is finished.