Switching relay module D5293S

ACsafetyDIN rail mounted

5 A SIL 3 RELAY OUT MODULE FOR NE LOAD WITH LOAD AND LINE DIAGNOSTIC DESCRIPTION The D5293S is a relay module suitable for the switching of safety related circuits, up to SIL 3 level according to IEC 61508:2010 Ed.2 , for high risk industries. It provides isolation between input and output contacts. Line input monitoring, to allow DCS/PLC line monitoring function, can be enabled or disabled by DIP-Switch programming; when enabled the module permits a wide compatibility to DCS/PLC manufacturer. Input line pulse testing, executed by DCS/PLC, is permitted by a dedicated internal circuit, to prevent relay and LED flickering. A low voltage input monitor is also provided to reflect a high impedance state to the control unit when the driving voltage is below the specified threshold. D5293S provides 1+1 SPST contact for normally energized load. SIL 3 Safety Function for NE load (de-energized in fail safe state) is available at Terminal Blocks 13-14; When the driving signal is high (24 Vdc), the relay is energized (normal state), SIL 3 contacts at terminals 13-15 and 14-16 are closed, the load is energized. The safety function is met when the driving signal is low (0 Vdc), the relay is de-energized (fail safe state), SIL 3 contacts at terminals 13-15 and 14-16 are opened, the load is de-energized. Load is isolated from supply on both polarities: +/AC, -/AC.