Product Description – ABB UNS0119A-Z V1 System Module

Description / Product Summary

The ABB UNS0119A-Z V1 System Module is a core excitation controller component within the UNITROL 1020 platform. It stabilizes generator voltage by regulating excitation current with high precision, which ensures secure operation of synchronous machines during changing load conditions. Moreover, its microprocessor-driven design allows fast dynamic response, helping plants maintain consistent power quality. The module communicates easily with modern SCADA systems, therefore allowing operators to supervise generator performance with reliable real-time data.

Technical Specifications

Model Number
UNS0119A-Z V1

Part Number
3BHE030579R0003

Type
System Module (Excitation Controller)

System Compatibility
ABB UNITROL 1020 excitation system

Control Architecture
Microprocessor-based, real-time operating system

Functions
Excitation regulation, voltage stability, generator monitoring

I/O Configuration
Comprehensive analog and digital I/O

Communication Interfaces
Ethernet, Modbus, Profibus, IEC 61850

Dimensions (H × W × D)
186 × 59 × 127.5 mm

Weight
0.7 kg

Operating Temperature
–20 °C to +60 °C

Storage Temperature
–40 °C to +85 °C

FAQ 

Q1: What system is the ABB UNS0119A-Z compatible with?
A1: It is designed for the UNITROL 1020 excitation system used in synchronous generators and motors.

Q2: Which communication options does the module support?
A2: It includes Ethernet, Modbus, Profibus, and IEC 61850 for seamless integration with plant automation.

Q3: Does the module offer fast response to voltage changes?
A3: Yes. Its microprocessor-based architecture ensures rapid reaction to load variations and grid disturbances.

Q4: Can the UNS0119A-Z be used in redundant excitation configurations?
A4: The module supports redundant control designs to improve reliability in critical power systems.

Q5: What is the operating temperature range?
A5: It operates reliably from –20 °C to +60 °C, making it suitable for most industrial electrical rooms.