Acromag introduces a new range of relay interface modules to monitor or control high-energy actuators using remote I/O, PLCs, or other distributed control systems with DC logic signalling.
Acromag’s new BusWorks XT Series multi-channel optocoupler and interposing relay modules connect discrete field devices to measurement and control system I/O modules. While the XTA-MRNO-6 is intended for switching AC/DC inductive loads at high currents, the XTA-120V-6 is designed to drive low-current devices such as solid-state relays, LEDs, relay coils, solenoids, and incandescent lamps.
XTA-120V-6 optocoupler modules
The XTA-120V-6 optocoupler modules have six individually isolated 120V AC/DC digital (discrete) inputs to sense on/off levels and provide 5-32V DC logic outputs to a fieldbus input module or a controller.
The XTA-120V-6 six-channel optocoupler is intended for use with control system digital input modules to monitor contact closures or mains power supply on/off voltage levels. Each channel senses the presence or absence of high-level voltage to determine the status of proximity switches, limit switches, toggle switches, push buttons, contacts, and other devices. Opto-isolators control a MOSFET switch for a TTL-level output to safely interface the status of the monitored device.
XTA-MRNO-6 interposing relay modules
The XTA-MRNO-6 interposing relay module receives 4-32V DC logic-level signals from an output module or controller to switch six mechanical relay outputs. These two high-voltage relay interface modules offer a high-density, cost-effective solution to safely monitor or control inductive and other high-power loads (motors, valves, solenoids, etc.) with control system input/output modules that only support low- level DC signals.
The XTA-MRNO-6 six-channel mechanical relay is used with digital output modules to drive high energy loads. This unit serves as an interim digital interface to switch high voltage devices at high currents based on digital DC logic inputs. Each output has normally open Form A mechanical relay contacts (SPST-NO). LEDs on each channel indicate the output state for convenient troubleshooting.
These multi-channel discrete contact sensor and relay output modules offer a safe, isolated interface between high-energy field devices and sensitive control system I/O modules. By adding optocouplers and relays, the PLC, DCS, or remote I/O modules can be used with 5-24V logic circuits to operate 120V AC/DC contactors.
Key features of Acromag’s new BusWorks XT Series relay modules:
- Innovative 22.5mm wide housing design features removable front-facing terminal blocks for easier wiring
- Runs off a 12-32V DC power source at the terminals or through integrated power connector bussed along the DIN rail providing primary or redundant power
- Supports fail-safe operation
- Suitable for use in harsh environments
- Operates from -40°C to +85°C with 1500V AC isolation and surge/transient protection
- Withstands 25g shock and 4g vibration
- Can drive audible or visual alarms
- CE and UL/cUL Class 1 Division 2 Zone 2 hazardous location approvals pending
Acromag is represented in Australia and New Zealand by Metromatics .