Sunx SD3-A1, Инструкция по эксплуатации

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8.3
Connecting the SD3-A1 to a PLC with corresponding safety
level (Category 3 or higher, EN 954) and zone pair changeover
Fig. 8.3-1: Connecting the SD3-A1 to a failsafe PLC with a safety level (at least
Category 3, EN 954) and zone pair changeover (example)
All switching functions in this sample connection are controlled directly by the PLC.
The changeover of 4 zone pairs is achieved by way of the inputs X1-4 (FP 1), X1-6 (FP 2)
X1-7 (FP 3) and X1-8 (FP 4).
For applications in which the scanner must be separately enabled for its detection zone,
the signal can be given either by the machine controls or by connecting a command unit
for restart interlock. The
SD3-A1 itself must be configured using the “ SD3SOFT ” user
program so that the operating mode “with restart interlock” is active.