Chapter 12 Application Examples
ASDA-A User Manual
4th Edition 2005/11/30, HE03
© DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
12-32
values are.
C=1: Enable homing function automatically after power in connected to the servo drive.
This function is valid only when power on and servo on. It is used on condition that it doesn’t need
to repeat the execution of homing function when the servo drive is operating. Use this function
can save an input contact which is used for executing homing function.
C=2: Enable homing function by SHOM input contact.
To use this function, set any one of register of parameter P2-10 ~ P2-17 (Digital Input Terminal 1
~ 8) to SHOM. The setting value of parameter P2-10 ~ P2-17 should be 127(contact “a”) or
27(contact “b”). Then, user can enable the homing function by triggering SHOM input contact at
any time when the servo drive is operating.
(4) D: Homing Stop Setting
D=0: After detecting “Home”, the motor will decelerate and return to “Home”.
After get the home sensor signal in 2nd step speed operation, the motor will decelerate and stop.
After the servo motor stops, the then move to the position of mechanical “Home”.
D=1: After detecting “Home”, the motor will decelerate and stop in the forward direction.
After get the home sensor signal in 2nd step speed operation, the motor will decelerate and stop.
After the servo motor stops, the over distance will not be corrected. The position of mechanical
“Home” will not change by the difference of the over distance.
Recommended Homing Modes
According to various use requirements and corresponds to difference setting values of C and D, the
recommended setting values of A and B are shown as below:
B
0 1 2 3 4 5
0
Y Y Y Y N N
1
N N Y Y N N
2
N N Y Y Y Y
(Y=Yes, N=No)
Homing Timing Charts
(1) Timing Charts of Enable Homing Mode
1. Automatically enable homing function when power on (C=1)
After homing is completed, if any one of output function definition (DO) of parameter P2-18 ~
P2-22 is HOME (setting value is 09 or 109), the corresponding output terminal will generate
output signal immediately (Active). If servo on input signal is canceled or any alarm occurs in the
process of homing, the homing function will terminate and do not output homing completed
signal.
A