3.7 Control and functions of Input and output signals of Modes other than Remote I/O Mode
149
(6) Home return (HOME) PLC Output Signal
Home return completion (HEND) PLC Input Signal
Moving (MOVE) PLC Input Signal
Positioning complete (PEND) PLC Input Signal
Operation
Mode
Positioner 1 Simple Direct Direct numeric
specification
Direct numeric
specification 2
Positioner 2 Positioner 3
{ : Equipped
×
: Not equipped
{ { { { { {
HOME Signal is a signal to conduct a home-return operation.
Once HOME Signal is turned ON, this signal is processed as a rise (ON-edge), and the
actuator starts home-return operation. Once the home-return operation is completed, the
home-return operation complete signal HEND turns ON. Home-Return Complete Signal HEND
will be kept ON once it is turned ON even if getting off the home position. (HEND turns OFF
when home position is lost and undetermined.) Even when HEND is ON, home-return
operation can be conducted again by turning HOME Signal ON. HEND should be OFF during
the home-return operation and should be turned ON again once the home-return operation is
complete.
Also, the positioning complete signal PEND turns OFF and the moving signal MOVE turns ON
during a home-return operation.
Home Return Signal
HOME
(PLC → MSCON)
Homing Completion Signal
HEND
(MSCON → PLC)
Positioning Completion Signal
PEND
(MSCON → PLC)
Moving Signal
MOVE
(MSCON → PLC)
Caution: If an actuator of Incremental Type is connected, and in Position * Mode and Simple
Direct Mode, when the positioning command is issued without performing the
home-return operation after the power is turned ON, the positioning can be
performed once only after the automatic home-return operation is executed.
Exercise caution that in the derect indication mode
, issuing a positioning command
to a given position following the power ON, without performing a home return first,
will generate an alarm “Error Code 83: ALARM HOME ABS (absolute position move
command when home return is not yet completed)” (operation-reset alarm).
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