www.fanox.com Rev.26 99/1885.7. Digital inputsThe SIA-C (depending on model) has 2 digital inputs that can be configured by the user. Theinputs can be configured from the HMI or through the SICom program.Physical inputs are the equipment’s real inputs. The SIA-C has two physical inputs: Input 1 andInput 2. These physical inputs can be associated with the logical states. The SIA-C has thefollowing logical states:Logical states DescriptionBlock 50P Function 50P and 51P trip lockBlock 50N Function 50N/G and 50/51N/G trip lockActive settings group 1 Active table assignmentActive settings group 2 Active table assignment5.8. Digital OutputsOptionally (to be selected for each model), the SIA-C equipment has up to three cofigurableoutputs. By default, the configuration is as follows: Output 2: activates when a phase trip or an external trip occurs Output 3: activates when a neutral trip occurs Output 4: activates when the SIA-C is not READYTo get the outputs to be operative it is required the following current:Single phase0.35xIn, this is 0.35 amperesThree phase0.175xIn, this is 0.17 amperesOnce the relay detects these levels of current these outputs are instantaneously operative.
