
B–63503EN–1/01
4. REFERENCE POSITION ESTABLISHMENT
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[Classification] Input signal
[Function] This signal selects manual reference position return. Manual reference
position return is a kind of jog feed. Therefor, to select manual reference
position return, it is required that the jog mode be selected and that the
manual reference position return selection signal be set to “1”.
[Operation] When the manual reference position return selection signal is set to “1”,
the control unit becomes as described below.
D If jog feed mode is not selected, the control unit ignores the manual
reference position return selection signal.
D If jog mode is selected, manual reference position return is enabled.
In this case, manual reference position return selection check signal
MREF turns to “1”.
NOTE
If the ZRN status changes from “0” to “1” or “1” to “0” during
jog feed, the feedrate is decelerated to 0. Then, to make
reference position return or jog feed, turn feed axis and
direction selection signal to “0” then set it to “1”.
[Classification] Output signal
[Function] This signal reports that manual reference position return has been selected
once.
[Output condition] This signal turns to “1” when:
⋅ Manual reference position return has been selected.
The signal turns to “0” when:
⋅ The selection of manual reference position return has terminated.
Signal
Manual reference
position return selection
signal (ZRN) <G043#7>
Manual reference
position return selection
check signal MREF
<F004#5>