
5.I/O SIGNALS B-63494EN/02
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Safety speed / safety position selection signal A
SVA1 to SVA8 <G336><DI+004> (for each axis)
SPA1 to SPA4 <G338#0 to #3><DI+006#0 to #3> (for each spindle)
Safety speed / safety position selection signal B
SVB1 to SVB8 <G337><DI+005> (for each axis)
SPB1 to SPB4 <G338#4 to #7><DI+006#4 to #7> (for each spindle)
[Classification] Input signal
[Function] When the Dual Check Safety Function is activated, it is possible to
select safety limit speed and safety machine position of each axis.
This signal is prepared for each axis and each spindle. The final
number in the signal name shows the number of the controlled axis
and spindle.
SVAx
, SVBx
x
1: Select safety speed/safety machine position of the 1st axis
2: Select safety speed/safety machine position of the 2nd axis
3: Select safety speed/safety machine position of the 3rd axis
: :
SPAy
, SPBy
y
1: Select safety speed of the 1st spindle
2: Select safety speed of the 2nd spindle
3: Select safety speed of the 3rd spindle
4: Select safety speed of the 4th spindle
[Operation] According to the combination of Safety Speed/Safety Machine
Position Selection signal, safety speed and safety machine position are
selected as the following table.
Safety speed 1 for a feed axis assumes the value of parameter No.
1942 when parameter No. 1942 is not set to 0. Safety speed 1 for a
feed axis assumes the value of parameter No. 13821 when parameter
No. 1942 is set to 0.
Similarly, safety machine position 1 assumes the value of parameter
No. 1943 (No. 1944) when parameter No. 1943 (No. 1944) is not set
to 0. Safety machine position 1 assumes the value of parameter No.
13831 (No. 13832) when parameter No. 1943 (No. 1944) is set to 0.
Safety Speed/
Safety Machine Position
Selection signal
Safety limit speed Safety machine position
SVAn SVBn
SPAn SPBn
Parameter for
servo axis
Parameter
for spindle
+ direction
parameter
- direction
parameter
Safety limit speed 1 Safety machine position 1
0 0
No.1942 /
No.13821
No.4372
No.1943 /
No.13831
No.1944 /
No.13832
Safety limit speed 2 Safety machine position 2
1 0
No.13822 No.4438 No.13833 No.13834
Safety limit speed 3 Safety machine position 3
0 1
No.13823 No.4440 No.13835 No.13836
Safety limit speed 4 Safety machine position 4
1 1
No.13824 No.4442 No.13837 No.13838