Direct Interface To Universal Relay Module - Omega Engineering wall mount Multi-Channel DPS3300 User Manual

DIRECT INTERFACE TO UNIVERSAL RELAY MODULE

A special feature in the DPS3300 series units allows direct interfacing with Universal Relay Module (Model RELAY-
URM400/800) – via a serial interface. The serial interface is available at a separate connector (as shown) in the terminal
compartment.
RELAY-URM400/800 series relay module is a very versatile instrument that is used for switching up to eight 15 ampere
loads. In addition to the DPS3300 serial interface, RELAY-URM400/800 series relay module accepts low level input
signals from PLCs, process controllers, indicators, motor starters, etc. Selectable input allows activation of output relays
on direct acting or reverse acting signal. In addition to working with control/logic level signals, another very useful feature
of RELAY-URM400/800 is activation of output relays on contact closure. The use of the RELAY-URM400/800 allows
heavy loads requiring up to 15 amps to be controlled by the DPS3300 with minimal equipment & wiring.
Input and output connections for the RELAY-URM400/800 are made through euro style pluggable connectors which are
conveniently located on the top and bottom of the unit. Screw in terminals allow for quick connect/disconnect of wires.
The unit is housed in a versatile enclosure that can be configured for mounting on a DIN rail or on a wall. If desired, the
same enclosure can be panel mounted with relay, AC and DC supply status visible on the front. LEDs on the front panel
turn on when a relay is energized. Two different versions are offered in this series. First one is RELAY-URM400 that has
four relay outputs. The second one is RELAY-URM800 that has eight relay outputs. (Future versions will also include 4-
15A solid state relays). Both units come with a built-in universal power supply. It operates from 100vac to 240vac. This
power supply provides power not only to the internal electronics and relays but has up to 20watts (5, 12 or 24vdc)
available for external applications by the user.
DIRECT SERIAL
INTERFACE TO
RELAY-URM400/800
SERIAL PORT
DPS3300 TERMINAL COMPARTMENT
FOR RELAY-URM400/800
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