ADLINK PCI-8144 - Manual (Page 50)

40 Operation Theory
4.2.7 Home Return Mode
Home return means searching a zero position point on the coordi-
nate. Sometimes, users use ORG pin as a zero position on the
coordinate. At the beginning of machine power on, the program
needs to find a zero point of this machine. Our motion controller
provides following functions to make it.
_8144_enable_sd_signal
_8144_enable_org_stop,
_8144_tv_move,
_8144_sv_move.
When ORG signal control is enabled (home return operation), the
ORG signal is turned ON and the motor will stop immediately.
After that, if the ORG signal goes OFF, the motor will remain
stopped. Those signal statues can be used by the function,
“_8144_get_mio_status”.
X When SD is not installed
X When SD is installed and SD is not latched