The DNx-DIO-463 (Guardian series) are 12-channel, solid-state relay boards. Relays are in a Form A (SPST) configuration and are rated for continuous operation at 2A at 51 VDC, Solid state contacts ensure many more operations than electromechanical relays and are also silent. The board provides an ON resistance of less than 150 milliohms and update rates up to 125 Hz.
The DIO-463 is a member of UEI's popular Guardian series, which provide high levels of user diagnostics. It not only controls the relay outputs, it also provides a powerful output monitoring capability. An on-board A/D converter allows you to monitor DC output voltages (relative to the common terminal) and DC output current. This allows the application to detect short and open circuits as well as other "“suspicious behavior". The monitoring capability is also a powerful diagnostic tool that allows a repair technician to quickly and accurately identify damaged or miswired channels.
The Guardian advantage also includes programmable overcurrent protection – the user may select the overload current up to one second before the channel is shut down. Each board provides 350 Vrms isolation between channels, as well as between the board, cube, and other installed I/O boards.
All connections are made through 37-pin D connectors that ensure that mating cables or connectors are readily available. Users may also use the DNA-STP-37 screw terminal panel via DNA-CBL-37 or -37S series cables.