Panasonic SE4D Series Instruction Manual

653-3 Emission Halt FunctionThis function stops the emission process of the emitter.With the emission halt input line state, it enables to select either emission or emission halt.Setting status ofinterlock function Emission halt input / Reset input Emissionhalt input Control output (OSSD 1 / 2) statusManual resetOpen Invalid ONWhen selecting PNP output: connect to +VWhen selecting NPN output: connect to 0V Valid OFFAuto resetOpen Valid OFFWhen selecting PNP output: connect to +VWhen selecting NPN output: connect to 0V Invalid ONDuring emission halt, the control output (OSSD 1 / 2) becomes OFF state.By using this function, malfunction due to extraneous noise or abnormality in the control output(OSSD 1 / 2) and the auxiliary output can be determined even from the equipment side.Normal operation is restored when the emission halt input / reset input is connected to 0V or +V(for manual reset: open).Note: This timing chart shows the operation in auto-reset mode. In manual reset mode, the device performs emis-sion under open status and performs emission halt under short-circuit status.Do not use the emission halt function for the purpose of stopping the machine inwhich the SE4D series is installed. Failure to do so could result in death or seri-ous injury.3-4 Interference Prevention FunctionIt is possible to construct the system to prevent malfunction due tointerference of the light between SE4D series devices.The interference prevention system can construct max. three setsof series and parallel mixed connection.The max. number of the beam channels in series and parallelmixed connection is 192.Refer to “2-5 Wiring” for details of the connecting method.20ms or lessONOFF14ms or less 90ms or lessEmission haltinput / ResetinputEmission status(Note 1)Control output(OSSD 1 / 2)OpenShort circuitEmissionEmissionhalt20ms or less