
B-63494EN/02 6.PARAMETERS
- 109 -
[Valid data range] -99999999 to 99999999
Set a safe machine position for each axis.
The CNC and monitor always check the machine position on each
linear axis in the dual check safety function.
In safety signal mode B (state in which a guard open request is input,
and the guard is closed), if there is at least one linear axis whose
machine position is not in the safe machine position (safe machine
position (- direction) ≤ machine position ≤ safe machine position (+
direction)), the guard unlock signal (*LGD) is set to 0 to disable guard
unlocking. The state in which the machine positions of all linear axes
are within the safe machine positions is one condition for setting the
guard unlock signal (*LGD) to 1 (to enable guard unlocking). If the
machine position on a linear axis exceeds the safe machine position in
safety signal mode C (state in which a guard open request is input and
the guard is open), a servo alarm No.477 or No.495 is issued.
Up to four safe machine positions can be set. Which safe machine
positions to choose depends on the safety speed/safety position
selection signal (safety input signal). For details, see Section 5.2,
"SIGNALS."
Safe machine position 1 assumes the value of parameter No. 1943 (No.
1944) if parameter No. 1943 (No. 1944) is not set to 0. Safe machine
position 1 assumes the value of parameter No. 13831 (13832) if
parameter No. 1943 (No. 1944) is set to 0.
=
≠
=+
0) 1943 (No. 13831 No.Parameter
0) 1943 (No. 1943 No.Parameter
direction) ( 1position machine Safe
=
≠
=
0) 1944 (No. 13832 No.Parameter
0) 1944 (No. 1944 No.Parameter
direction) (- 1position machine Safe