
B–63833EN–1/02
4. REFERENCE POSITION ESTABLISHMENT
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(6)Upon confirmation that the current position is at the in–position area,
the reference position return end signal (ZP1, ZP2, ZP3,…) and the
reference position establishment signal (ZRF1, ZRF2, ZRF3,…) turn
to “1”.
These steps are repeated for each axis. The number of simultaneously
controlled axes is usually one, but it becomes three by setting parameter
JAX (No. 1002#0).
If the feed axis direction selection signal (+J1, –J1, +J2, –J2,…) turns to
“0” between step (2) and (4) , the tool is stopped at once, and reference
position return is canceled. If the signal turn to “1” again, operation
resumes from step (3) (rapid traverse).
The timing charts for the basic procedures are given below.
ZRN
+J1
*DEC1
Grid
ZP1
ZRF1
Feedrate
Rapid traverse rate
FL rate
. . . . . . . . . . . . . . . . . . . . .
JOG or TEACH IN
JOG mode
When installing the deceleration limit switch for manual reference
position return, ensure that following conditions are satisfied:
*DEC1
Grid
Feedrate
Rapid traverse rate (V
R
)
Deceleration limit
operation position
FL rate (V
L
)
. . . . . . . . . . .
L
DA
L
DW
Reference position
Deceleration limit
release position
Installation conditions
for deceleration limit
switch