IAI America SSEL - Manual (Page 311)

289
Part 2 Programs
9. Output of Home Return and Home Return Complete Signal
Description
Output a signal to confirm completion of homing (incremental specification).
With the SSEL controller, a home return completion signal can be output using an I/O parameter.
However, the following explains how to output a home return completion signal within a program using a
general-purpose output.
Once turned ON, a general-purpose output will remain ON even after the current program ends or other
program is started. (It will turn OFF upon emergency stop, etc., but the ON status can be maintained
using an I/O parameter (I/O parameter Nos. 70 and 71).)
Example of Use
a. Output a home return completion signal.
Execute homing.
General-purpose output (arbitrary)
b. Use a home return completion signal to make sure the actuator will not perform homing if it has
already been performed.
Execute homing if output 303 is OFF.
Home return completion output
c. Use the output field instead of a BTON command.
Execute the same processing
performed with the above two steps.
Reference
Output port No. 304 can be used as a home return completion output (dedicated output) by setting I/O
parameter No. 50 to “13.”
Caution: Take note that if you are using the linear servo actuator LSAS-N10/N15 of quasi-absolute
type, after completing a home return operation following power on the actuator moves in a
range of approx. 16 mm from the stopped position to confirm the current position.