ABB UNS0119A-P V101

Description

Product Description

The ABB UNS0119A-P V101 is a specialized power supply and system interface module for the ABB UNISYS line of low-voltage switchgear and motor control centers (MCCs). This module is a critical component within an intelligent MCC system, functioning as the power supply and communication hub for the UNISYS bus network that interconnects various intelligent devices like motor protection relays, feeder protection units, and measurement modules within the switchgear assembly. Its primary role is twofold: to provide a stable, isolated DC power source for the entire UNISYS communication network, and to act as the central interface (gateway) between this proprietary device-level network and higher-level automation systems via standard protocols like Modbus RTU or PROFIBUS DP. The reliable operation of the ABB UNS0119A-P V101 ensures that data from all connected protective devices is collected and made available for monitoring and control, while also guaranteeing that the communication network remains powered. Implementing this module is fundamental for enabling smart, networked functionality and remote management in modern motor control centers.

Product Parameters

• System Family: ABB UNISYS (for intelligent low-voltage switchgear & MCCs).
• Module Type: Power Supply & Communication Interface Module (UNISYS Bus Coupler).
• Functions:
  • Power Supply: Provides regulated 24V DC power for the UNISYS bus and connected devices.
  • Communication Gateway: Interfaces the UNISYS bus with higher-level networks.
• UNISYS Bus: Proprietary ABB serial communication bus for connecting devices within a single switchgear panel or MCC section.
• Uplink Communication Protocols: Typically supports Modbus RTU (RS-485) and/or PROFIBUS DP as a slave device.
• Power Input: Auxiliary power supply input (e.g., 110-240V AC/DC).
• Diagnostics: LED indicators for power status, UNISYS bus activity, and uplink communication status.
• Mounting: Designed for mounting within a UNISYS-compatible switchgear compartment or on a DIN-rail.
• Configuration: Configured via physical switches (for address, baud rate) and/or software tools.

Advantages and Features

• Integrated Power and Communication: Combines two essential functions—network power and gateway—into a single, space-saving module, simplifying MCC design and wiring.
• Enables Intelligent MCC Functionality: Serves as the backbone for creating a fully digital, communicative motor control center, allowing for remote monitoring of motor currents, temperatures, statuses, and fault diagnostics.
• Standard Protocol Gateway: Provides a seamless bridge between the proprietary UNISYS device network and plant-wide SCADA, DCS, or PLC systems using open standards like Modbus or PROFIBUS.
• Enhanced Diagnostics and Maintenance: By networking the protective devices, the ABB UNS0119A-P V101 enables predictive maintenance, faster fault location, and detailed event logging, reducing downtime.
• Robust Industrial Design: Built for the electrical and environmental conditions found in switchgear rooms and industrial plants.

Application Cases in Application Fields

• Water and Wastewater Treatment Plants: Forms the communication core of an intelligent MCC controlling pump motors, blowers, and mixers, sending operational data to the plant SCADA system.
• Oil & Gas Production Facilities: Networks motor starters and protection for pipeline pumps and compressor auxiliaries, enabling remote monitoring from a central control room.
• HVAC Systems in Large Buildings: Integrates fan and pump motor data from the building’s electrical distribution boards into the Building Management System (BMS).
• Industrial Manufacturing Plants: Provides a networked view of motor health and status across a production facility, supporting condition-based maintenance programs.

Comparisons with Competing Products

• Vs. Siemens SIRIUS 3RW System with PROFIBUS Interface: Siemens offers a similar system for smart motor starting and monitoring. The ABB UNS0119A-P V101 is part of ABB’s UNISYS ecosystem, which is deeply integrated with ABB’s own motor protection and control devices (e.g., ABB motor relays).
• Vs. Standalone Network Gateways & Separate Power Supplies: Using a separate gateway and a standard 24V DC power supply is more complex. The ABB UNS0119A-P V101 provides a pre-integrated, validated solution specifically for the UNISYS bus electrical and data requirements.
• Vs. Direct Device-to-PLC Wiring (Hardwiring): Traditional MCCs use individual wires for each status and fault signal. The ABB UNS0119A-P V101 and UNISYS network drastically reduce control wiring, simplify installation, and provide vastly more data.

Selection Suggestions and Precautions

1. Verify UNISYS Compatibility: Ensure the MCC or switchgear lineup is designed for the UNISYS system. The ABB UNS0119A-P V101 is not a universal device and requires compatible ABB UNISYS devices on the bus.
2. Uplink Protocol Selection: Choose the correct variant of the module that supports the required plant network protocol (Modbus RTU or PROFIBUS DP). The “V101” suffix may indicate a specific protocol version.
3. Network Addressing and Configuration: Set a unique node address on the module for the uplink network (Modbus slave address or PROFIBUS station address). Also, configure the baud rate and parity to match the master device.
4. Adequate Power Supply Capacity: While the module provides bus power, verify that the total current consumption of all connected UNISYS devices on the bus does not exceed the ABB UNS0119A-P V101‘s rated output capacity.
5. Software for Advanced Configuration: For mapping data points from UNISYS devices to Modbus/PROFIBUS registers, ABB’s specific configuration software may be required for optimal setup.

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