
B–63503EN–1/01
4. REFERENCE POSITION ESTABLISHMENT
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When the reference position has already been set (when APZx, bit 4 of
parameter No. 1815, is 1), performing butt–type reference position setting
causes the tool to be positioned to the reference position at the rapid
traverse rate without the cycle operation. Upon the completion of
positioning, the reference position return end signal is set to 1.
The timing chart for the cycle operation is shown below.
Manual reference position
return mode
Manual handle feed axis select
signals HS1A to HS1D
Automatic operation start
signal ST
Cycle operation
Automatic operation signal
OP
Reference position return end
signals ZP1 to ZP4
Torque limit
Axis feedrate
Torque limit reach signals for
butt–type reference position set-
ting CLRCH1 to CLRCH4
N%: Torque limit (%) specified with parameter No. 7186 (%)
100%
N%
Butting direction
100%
Withdrawal
direction
After the reference
position is set