Woodward easyYgen LS-6XT: A Multi Circuit Breaker Control Solution for Complex Power Management

5. Intelligent management and communication

Built in power calculation: can calculate active and reactive power, and also supports input from external transmitters.

Load distribution segment control: Optimize load distribution among multiple units.

Automatic date and time synchronization: Automatically synchronize between LS-6XT, unit controller, and group controller to ensure consistency in event recording.

Detailed communication diagnosis: capable of monitoring, visualizing, and troubleshooting the status of all connected devices in the network.

Powerful logic and I/O configuration: Through LogicsManager and AnalogManager tools, users can customize the control logic, analog and digital I/O functions, achieving highly customized automation processes.

Rich communication interfaces:

3 Ethernet interfaces: Supports Modbus TCP slave protocol for remote control and visualization (such as connecting to easyYview).

1 or 2 CAN bus interfaces (depending on model): used to connect expansion I/O boards (such as IKD1) or easyYlite-200 remote indicators, and supports CANopen protocol.

1 RS-485 interface: Supports Modbus RTU slave protocol.

1 USB device interface: used for local configuration and maintenance.

6. Human Computer Interface and Visualization

Support Woodward easyYview visualization panel, providing standard and customizable operation screens.

The front panel integrates 8 configurable LED indicator lights for local alarm and status indication.

Support deep settings through PC using configuration tools.

Integrated real-time clock and event recorder with battery backup for easy fault analysis and system auditing.

Technical specifications and physical characteristics

According to product specification B37913, the main technical parameters of LS-6XT are as follows:

Power supply: 12/24 Vdc wide range input (8 to 40 Vdc), maximum power consumption of 22W.

Environmental adaptability: Operating temperature -40 to 70 ° C, storage temperature -40 to 80 ° C, humidity 95% non condensing, demonstrating strong industrial environment tolerance.

Voltage input:

Rated voltage range: The software can be configured for Y/∆ connection, supporting systems from 100Vac to 690Vac (e.g. 69/120Vac, 400/690Vac).

Linear measurement range: up to 1.25 times the rated voltage.

Measurement frequency: 50/60Hz (range 30-85Hz).

High impedance input: Input resistance of 2.5M Ω per phase, power consumption<0.15W/phase.

Current input: The software can select 1A or 5A secondary rated value, isolated input.

Linear range of system A: 3 times the rated current.

Linear range of system B: 1.5 times the rated current.

Accuracy: Level 0.5.

I/O capability:

12 discrete inputs (DI): isolated, 8-40VDC, freely configurable functions (such as circuit breaker commands, enable, status feedback, etc.).

12 relay outputs (RO): isolated, AgNi contacts, capacity 2A @ 250Vac or 24Vdc, most can be configured through LogicsManager.

3-channel analog input (AI): isolated, freely scalable, supports 0-1V, 0-2000 Ω, 0/4-20mA signals, 16 bit resolution.

2-channel analog output (AO): isolated, freely scalable, supports ± 10V, ± 20mA, and PWM signals, with a 12 bit resolution.

Mechanical characteristics:

Shell: Installed behind the board, powder coated metal shell, protection level IP20.

Dimensions: 250mm (width) x 228mm (height) x 50mm (depth).

Weight: Approximately 1.75kg.

Wiring terminal: screw/plug terminal, supports 2.5mm ² wire diameter.

Certification: Compliant with CE, UL, cUL (based on standards 61010-1, 6200-1) and Marine Engineering (LR/ABS) certifications, suitable for various demanding industrial and maritime applications worldwide.

Typical Application Architecture

The schematic diagram in the document clearly depicts the core position of LS-6XT in hierarchical control systems:

Device layer (Layer 1- Genset): consists of multiple generator sets equipped with easyYgen-3400XT/3500XT controllers.

Layer 2- Group: One or more GC-3400XT unit group controllers manage their respective generator groups (up to 31 units/group) and control the group circuit breakers (GCBs).

Layer 3- Plant: The control core consists of multiple LS-6XT controllers. They are interconnected through redundant Ethernet (Eth A, B, C) and CAN bus, and communicate with the lower level group controllers. LS-6XT is responsible for:

Monitor the electrical parameters of System A (usually the power grid or main busbar) and System B (generator side or backup busbar).

Execute synchronous logic to control the bus tie circuit breaker or grid connected circuit breaker.

Implement power exchange management (import/export) between the generator group and the power grid.

Implement protection and control strategies at the factory wide level.

This architecture achieves decentralization of control and centralization of management, ensuring that local failures do not affect the overall situation, and facilitating unified optimization scheduling and energy management.

Model Differences and Selection Guidelines

From the comparison table at the end of the document, it can be seen that LS-6XT mainly offers two packaging models: P1 and P2 (corresponding to LS-612 model). The two remain consistent in most core functions, but the P2 model offers enhanced features: