DC relay module X1-NIS-RLO/SS-04-S

solid-stateprogrammableswitching

SIL3 Solid-State Relay Out Module for 2A NE Loads with DiagnosticsThe X1-NIS-RLO/SS-04 solid-state relay module is suitable for switching safety related circuits, up to SIL 3 level, for high risk industries. It provides isolation between input coils and output contacts, making available a safety NO contact for Normally Energized (NE) loads. A wide compatibility towards different DCS/PLC is guaranteed: driving pulse testing is permitted by a dedicated internal circuit, which prevents contact and LED flickering, while offering an acceptable resistance to the DO Card. Line and load short/open circuit detection with programmable limits and load voltage monitoring are provided, both when the load is off and when the load is on. The fault in the field is directly mirrored to the PLC DO by artificially increasing the input impedance without commuting the relay contacts, and it is also reported to the cumulative fault. To ease maintenance operations, field devices can be disconnected through a two-position insertion/extraction mechanism. This product requires a dedicated Termination Board.SIL 3 / SC 3Installation in Zone 2 / Division 2Loop disconnection to ease maintenance operationsUp to 2 A functional / 6 A inrush currentCompatible with DCS/PLC pulse testingLoad disconnection on both supply lines availableLine & Load short/open circuit detection (programmable thresholds)Load voltage monitoringField fault mirroring to the DCS/PLC DO CardAutomatic TProof test available through GatewayThree port isolation, Input/Output/SupplyTechnical Specifications:Power Dissipation: 0.8 W @ 24 Vdc System Supply, with 2 A load current, typical.System Supply Voltage: 24 Vdc nom (18 to 30 Vdc).System Supply Current Consumption: 18 mA @ 24 Vdc and relay energized, typical.System In Type: 24 Vdc nom (18 to 30 Vdc).System In Current Consumption: 12 mA @ 24 Vdc, typical.Input Impedance: 2 kΩ @ 24 Vdc, typical.Field Supply Type: DC voltage supply.Field Supply Voltage Range: 0 to 60 Vdc.Field Out Type: NE load.Field Out Max Ratings: 2 A 60 Vdc 120 W.Field Out Max Inrush Current: 6 A.Operate / Release Time: 30 / 30 ms, typical.Fault Type: Load & line short/open circuit, supply voltage monitoring.Line/Load Fault: programmable resistance (20 Ω to 20 kΩ) and current (20 mA to 2 A) limits.Load Supply Voltage OK: ≥ 20 Vdc.Load Supply Voltage Fault: ≤ 5 Vdc.Fault Signalling: common fault & fault mirroring on DCS/PLC DO.Response Time: ≤ 1 s.Isolation Test Voltage: Field Out/System In 2.5 kV; Field Out/System Supply 2.5 kV; System In/System Supply 500 V.Operating Temperature: –40 to +70 °C.Storage Temperature: –45 to +80 °C.Weight: about 50 g.Dimensions: Width 10 mm, Depth 80 mm, Height 120 mm.Channels: 1