Manual

Detailed Descriptions of ACL Commands 3-29
The action of the FH command can also be caused by the manual re-reference operation (i.e.
pressing the FAST and GO TO ORIGIN buttons simultaneously). See Chapter 4.
The Automove System does not automatically find the Home switches at power up. Until it
receives an FH command or manual re- reference, it assumes that the Home position is
wherever the carriage was at power up. If you want your system to automatically find home
you can make an Autostart sequence containing an FH command. See personality parameter
39 in Chapter 7.
Immediately after power up there are no constraints on front panel Arrow button motion.
The first FH command or manual re-reference establishes Arrow button travel limits. See
the TL command and the Arrow buttons in Chapter 4. As far as the AA, AR, MA and MR
commands are concerned, travel limits are always in effect, regardless of whether the Home
switches have been found.
At power up the Home position is wherever the carriage is when motor power is first
applied, so until an FH or manual re-reference occurs the Home and Origin positions will
both be at unknown locations with respect to the platen. The travel limits will not work
correctly. Also, since ACL motion commands can go only to positive coordinates, and since
the power-up position defaults to (0,0), a portion of the platen would only be reachable via
the Arrow buttons. Moral: always find home FIRST!