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Sigma II User's Manual
7.2.8
Origin Search Mode
• Forward run prohibited (P-OT) and reverse run prohibited (N-OT) signals are not effective during
jog operations using parameter Fn003.
The origin search mode is designed to position the origin pulse position of the
encoder and to clamp at the position. This mode is used when the motor shaft needs
to be aligned to the machine. Execute the origin search without connecting the cou-
plings.
The speed for executing the origin search is 60rpm.
The following conditions must be met to perform the origin search operation.
•
If the Servo-ON input signal (/S-ON) is ON, turn it OFF.
•
Release the Servo-ON signal mask if the parameter Pn50A.1 is set to 7, and the
servo has been set to be always ON.
Follow the procedure below to execute the origin search.
Using the Hand-Held Digital Operator
1. Press the DSPL/SET key to select the auxiliary function mode.
2.Select the parameter Fn003.
Press the Left Arrow
Press the Up Arrow
3. Press the DATA/ENTER key, and the display will be as shown below.
CAUTION
!
For aligning the motor
shaft with the machine
or Right Arrow
or Down Arrow
7-41
Chapter 7: Using the Digital Operator
Mechanical origin
key to select the digit.
key to change the value.
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