Title: bn303_cgb.pdf
The four different behaviours can be configured by DIP switch 5 and 6 in order to be able to monitor different setups of the input contact (s). (Switch 7 and 8 are not used).(See location of DIP switch S1 on the circuit board drawing)Input configuration A activates when the contacts are closed. This arrangement also allows the unit to monitor for an electrical wiring fault in the form of an open or short-circuit, between the contacts and the unit, either before or during activation.S1.5 OFFS1.6 OFFNormal Open contact with ‘activate’ resistor, fault monitored for open and short-circuit.Input configuration B activates when the contacts are opened. This arrangement allows the unit to monitor for an electrical wiring fault in the form of an open or short-circuit, between the contacts and the unit, either before or during activation.S1.5 OFFS1.6 ONNormal Closed contact with ‘activate’ resistor, fault monitored for open and short-circuit.