Yaskawa Σ-V Series AC Servo Drives Rotational Motor Analog Voltage Reference - Manual (Page 224)

7 Utility Functions (Fn )
7-6
7.4
Origin Search (Fn003)
The origin search is designed to position the origin pulse position of the incremental encoder (phase C) and to
clamp at the position.
This function is used when the motor shaft needs to be aligned to the machine.
Motor speed at the time of execution: 60 min
-1
(1) Preparation
The following conditions must be met to perform the origin search.
• The write prohibited setting parameter (Fn010) must be set to Write permitted (P.0000).
• The main circuit power supply must be ON.
• All alarms must be cleared.
• The servo ON signal (/S-ON) must be OFF.
(2) Operating Procedure
Use the following procedure.
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 origin
search mode.
For aligning the motor
shaft to the machine
Servomotor
Machine
Step Display after Operation Keys Operation
1
Press the Key to view the main menu for the util-
ity function.
Use the
or Key to move through the list and
select Fn003.
2
Press the Key. The display changes to the Fn003
execution display.
3
Press the Key.
The status display changes from "BB" to "RUN", and
the servomotor power turns ON.
Note: If the servomotor is already at the zero position,
"-Complete-" is displayed.
B B − F U N C T I O N −
F n 0 0 2 : J O G
F n 0 0 3 : Z
− S e a r c h
F n 0 0 4 : P r o g r a m J O G
F n 0 0 5 : P r m I n i t
B B − Z − S e a r c h −
U n 0 0 0 = 0 0 0 0 0 0
U n 0 0 2 = 0 0 0 0 0 0
U n 0 0 3 = 0 0 0 0 0 0 0 0 7 7 4
U n 0 0 D = 0 0 0 0 0 0 0 0 0 0 0
R U N − Z − S e a r c h −
U n 0 0 0 = 0 0 0 0 0 0
U n 0 0 2 = 0 0 0 0 0 0
U n 0 0 3 = 0 0 0 0 0 0 0 0 7 7 4
U n 0 0 D = 0 0 0 0 0 0 0 0 0 0 0