Description
1. Product Description
2. Product Parameters
| Parameter | Specification |
|---|---|
| Power Supply | Operates on a 24V DC power supply, which provides a stable and consistent source of energy for the module’s internal operations. |
| Input Signals | Can accept multiple types of input signals. It includes analog signals, typically in the range of 4 – 20mA, which represent electrical quantities like voltage and current. Additionally, it can receive digital signals for status information and control commands. |
| Output Signals | Generates digital output signals to drive external components in the excitation system, such as contactors and relays. These signals are used to adjust the excitation current and control the overall operation of the generator. |
| Communication Interface | Equipped with a serial communication interface, such as RS – 485, enabling seamless data exchange with other control devices or a central monitoring system. This allows for remote monitoring and configuration of the module. |
| Operating Temperature Range | Designed to operate within a temperature range of – 20°C to 60°C, making it suitable for use in various environmental conditions. |
3. Advantages and Features
- High – Accuracy Control: The IS200ESELH2A offers extremely accurate control of the generator’s excitation current. It can detect even minor changes in the generator’s electrical parameters and make rapid adjustments to maintain the output voltage within a tight tolerance of ±0.5% of the rated value. This high – level of accuracy ensures stable power output and reduces the risk of power quality issues.
- Reliability: Built with high – quality components and a robust design, the module is highly reliable. It can withstand harsh industrial environments, including high – temperature, high – humidity, and high – vibration conditions. In long – term operation, it has a low failure rate, which is crucial for continuous power generation. For example, in a power plant with a 24/7 operation schedule, the IS200ESELH2A has proven to operate reliably for years without significant breakdowns.
- Flexible Configuration: The module allows for flexible configuration according to different generator requirements. Users can adjust the control parameters, such as the gain and set – points, to optimize the performance of the excitation system. This flexibility makes it suitable for a wide range of generator types and power ratings.
4. Application Areas and Application Cases
- Application Areas: The IS200ESELH2A is mainly used in power generation facilities, including thermal power plants, hydropower plants, and gas – fired power plants. It is also applicable in industrial settings where large – scale generators are used for self – power generation, such as in large manufacturing plants and data centers.
- Application Case: In a thermal power plant, the IS200ESELH2A is installed in the generator’s excitation control system. When the power plant experiences a sudden increase in the electrical load, the module quickly detects the change in the generator’s output voltage. It then adjusts the excitation current to maintain the voltage at the desired level. This ensures that the power plant can continue to supply stable electricity to the grid, preventing power outages and voltage fluctuations.
5. Comparison with Competing Products
6. Selection Suggestions
- Compatibility: Ensure that the IS200ESELH2A is fully compatible with your existing generator excitation control system. Check the communication interfaces, power supply requirements, and input/output signal types to avoid any integration issues.
- Performance Requirements: Evaluate your specific application requirements, such as the required control accuracy, response speed, and the power rating of the generator. Make sure the IS200ESELH2A can meet these performance criteria.
- Budget: Consider your budget when selecting the product. While the IS200ESELH2A offers high – quality performance, it is important to ensure that it fits within your financial constraints.
7. Precautions
- Installation: Follow the installation instructions in the product manual carefully. Incorrect wiring, improper grounding, or incorrect mounting can cause damage to the module or lead to system malfunctions.
- Operating Environment: Keep the operating environment of the IS200ESELH2A within the specified temperature and humidity range. Avoid exposing it to strong electromagnetic interference, corrosive substances, and excessive dust, as these can degrade the performance and lifespan of the module.
- Maintenance: Regularly inspect the module for any signs of damage, loose connections, or abnormal operation. Follow the recommended maintenance schedule, including cleaning and component testing, to ensure the long – term stable operation of the IS200ESELH2A.
IC660ELB912J
High-Speed Gigabit Ethernet Connectivity
The IC660ELB921M provides 1Gbps throughput and dual-port flexibility at approximately 1.5 times the cost of the single-port IC660ELB910, making it ideal for users with high-bandwidth needs. A German automotive assembly plant used 12 IC660ELB921M modules to build a gigabit Ethernet network for its RX3i-based production line control system: each module connected an RX3i rack (equipped with IC695CPU331) to 8 robotic arms and 2 HMI terminals. The 1Gbps throughput supported real-time transmission of robotic motion data (1000 data points per second per robot), and the dual-port design enabled separate networks for control and monitoring—reducing data latency by 70% compared to the IC660ELB910, ensuring precise coordination of the assembly line.
Redundant Ring Network for Uninterrupted Operation
Unlike single-port modules (where a cable break shuts down communication), the IC660ELB921M’s ring topology support ensures network redundancy. A US integrated power plant deployed 18 IC660ELB921M modules in a ring network connecting 18 RX3i racks (controlling turbines, boilers, and generators): when a cable between two modules failed, the network recovered within 250ms, and all control loops continued operating without interruption. This reduced unplanned downtime from 4 hours (with single-port modules) to 0 minutes, avoiding $200,000 in lost power generation revenue per incident.
Multi-Protocol Compatibility for Interoperability
Supporting Modbus TCP, Ethernet/IP, and DNP3.0 protocols, the IC660ELB921M ensures seamless integration with diverse industrial devices. A Chinese smart factory used 8 IC660ELB921M modules to connect its RX3i PLC system with third-party equipment: 4 modules acted as Modbus TCP clients to collect data from Siemens S7-1200 PLCs (controlling conveyors), 2 modules served as Ethernet/IP adapters to communicate with Allen-Bradley VFDs, and 2 modules ran DNP3.0 over IP to send data to the plant’s SCADA system. This compatibility avoided the need for expensive protocol converters (which would have cost $30,000), reducing integration costs by 60%.
Advanced Security and Remote Diagnostics
Equipped with 802.1X authentication and a built-in web server, the IC660ELB921M enhances network security and simplifies maintenance. A Middle Eastern oil refinery deployed 10 IC660ELB921M modules in its hazardous area RX3i systems: 802.1X authentication prevented unauthorized access to the control network, and the web server allowed engineers to remotely configure IP addresses and run ping tests. During a recent maintenance cycle, engineers used the built-in packet capture tool to diagnose a communication issue with a DNP3.0 SCADA link—reducing troubleshooting time by 80% compared to modules without remote diagnostics.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.

Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
Full 12-month warranty on all components