Siemens SINUMERIK 840D sl Function Manual page 484

Data descriptions
9.6 Interface signals
SGA STOP C is active
This signal indicates that STOP C is active.
The signal must be used for the forced checking procedure for external STOPs.
0 signal: STOP C is not active
1 signal: STOP C is active
SGA STOP D is active
This signal indicates that STOP D is active.
The signal must be used for the forced checking procedure for external STOPs.
0 signal: STOP D is not active
1 signal: STOP D is active
SGA STOP E is active
This signal indicates that STOP E is active.
The signal must be used for the forced checking procedure for external STOPs.
0 signal: STOP E is not active
1 signal: STOP E is active
SGA "n < n
x
This SGA indicates whether the absolute value of the actual speed is above or below a speed
specified in the machine data.
Figure 9-2
484
Signal n < nx, dependent on the speed characteristic
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
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