Sunx SD3-A1, Инструкция по эксплуатации

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8.1
Integrating the SD3-A1 with external wiring with relays and
eightfold zone pair changeover
In this connection example, the restart interlock function is provided by the connected
command unit “start interlock”, which applies the voltage of 24V to the input RESTART
X1-2. The
SD3-A1 itself must be configured using the “ SD3SOFT ” user software so that
the operating mode “with restart interlock” is active.
Fig. 8.1-1: Wiring the SD3-A1 with evaluation of the OSSDs, zone pair changeover
and restart interlock (example)
Relays K1 and K2 must have forced contacts. They are operated directly at the two
failsafe semiconductor outputs OSSD 1 (X1-12) and OSSD 2 (X1-11).
Relay K3 has a deenergizing delay. A suitable mechanism must be provided for
extinguishing sparks. Please note that doing this will cause the switching time to be
extended.
Channels “x” and “y” must be integrated for Category 3 in accordance with DIN EN 954-1.
Integrating one channel based on “z” is only permitted with a one-channel control system
and taking into consideration the results of a risk analysis.
Serial machine controls are admissible only insofar the valid regulations allow.