Description
Brand: ALSTOM
Model: EP3-E-4-EN
System Name: Advanced Industrial Controller Module, also recognized as Epic III Controller Module, Process Control Module, and EtherCAT Coupler with Safe Digital I/Os in different application contexts, integrating PLC functions for seamless industrial automation integration[1][2][4].
Place of Origin: USA (main origin, with partial configurations produced in Switzerland)
Shipping Location: China (in-stock products are shipped from China, supporting worldwide delivery via DHL/FedEx/TNT/UPS
Warranty Period: 365 days (1 year)

ALSTOM EP3-E-4-A
Product Overview
The ALSTOM EP3-E-4-EN is a high-performance, compact industrial controller module launched by ALSTOM, engineered to meet the stringent requirements of modern industrial automation systems[1]. It features a highly integrated and modular design, combining advanced microprocessor technology with versatile connectivity and precise control capabilities to provide stable and reliable control, monitoring, and data processing solutions for complex industrial environments[1][5]. This product integrates multiple functions such as process control, digital I/O management, and safe signal transmission, with a robust structure that ensures long-term stable operation in harsh industrial settings[2][6]. It is widely used in manufacturing, power, petrochemical, and other industrial fields, serving as a core component for process regulation, equipment control, data acquisition, and system integration[1][5].
Core Functions
- Precise Process Control: Equipped with advanced PID control algorithm, enabling precise regulation of industrial processes such as temperature, pressure, and flow, optimizing process performance and enhancing operational efficiency[1][5]. It also supports digital data processing functions including FFT and order analysis, with signal evaluation compliant with industry standards such as API 670, VDI 2059, and DIN45670[4].
- Digital I/O Control: Configured with 4 digital inputs, 4 digital outputs, 2 fail-safe inputs, and 2 fail-safe outputs, enabling control of external devices such as relays, solenoids, and valves; the safe input and output signals can be exchanged with TwinSafe logic-capable components via FSOE[2]. Some configurations offer 8 inputs and 6 outputs to meet diverse application needs[1].
- Communication Functions: Equipped with versatile communication interfaces including RS-485, Ethernet, and EtherCAT, supporting multiple communication protocols such as Modbus, Modbus TCP/IP, Ethernet IP, and DeviceNet[1][5][6]. It combines the functionalities of the EK1100 EtherCAT coupler with standard and safe digital I/Os, facilitating seamless data exchange and interoperability with PLCs, DCSs, and other industrial equipment[2].
- Data Processing & Storage: Equipped with a high-performance processor (200 MHz) and large memory capacity (512 KB RAM, 1 MB flash), enabling efficient execution of complex control tasks and supporting extensive data processing, filtering, analysis, and storage[6]. It also features a built-in power supply for eddy-current sensors, with current outputs proportional to measured values (0/4…20 mA)[4].
- Easy Installation & Maintenance: Adopts a compact design for space-efficient installation, with a modular construction that allows flexible expansion and customization according to evolving needs[1]. It supports intuitive programming and diagnostics, enabling quick problem resolution and minimizing downtime, while also allowing easy installation and replacement without complex operations[1][6].
- Safety & Reliability: Built with high-quality electronic components, resistant to mechanical stresses and voltage fluctuations, suitable for harsh industrial environments[5]. It complies with relevant safety norms, and only qualified maintenance personnel are allowed to install, operate, or maintain the module to ensure operational safety[7].

ALSTOM EP3-E-4-A
Technical Parameters
| Parameter Category | Specifications |
| Power Supply | 24 VDC (standard); Input current: up to 20 mA[1][5] |
| Processor Speed | 200 MHz[6] |
| Memory | 512 KB RAM, 1 MB flash[6] |
| I/O Capacity | Standard: 4 digital inputs, 4 digital outputs, 2 fail-safe inputs, 2 fail-safe outputs; Optional: 8 inputs, 6 outputs[1][2] |
| Communication Interfaces | RS-485, Ethernet, EtherCAT; Supports Modbus, Modbus TCP/IP, Ethernet IP, DeviceNet[1][2][5][6] |
| Operating Temperature | -20 °C to +60 °C[1][5][6] |
| Storage Temperature | -40 °C to +85 °C[5] |
| Humidity Level | 0% – 95% RH (non-condensing)[5] |
| Protection Rating | IP20 (inside the cabinet) (standard)[1] |
| Power Consumption | Max. 15 W[6] |
| Output Current | Up to 20 mA; 0/4…20 mA (current outputs for measured values)[4][5] |
Specifications
- Dimensions: Standard: 76 mm × 94 mm × 40 mm; Optional: 2 cm × 19.5 cm × 26.1 cm (depending on configuration)[4][5]
- Weight: Lightweight design, 0.2 kg – 0.22 kg (standard version); Optional: Up to 3.5 kg (specific weight depending on configuration)[4][5][7]
- Structure: Compact and modular design, space-efficient for installation, easy to install, service, and maintain; adopts professional anti-static packaging[4][6]
- Warranty Period: 365 days (1 year), covering original quality issues, with strict pre-shipment testing to ensure product performance[2][3][4]
- Product Status: Original new, factory-sealed, in stock, available for same-day shipping from China[2][3][5]
- Component Quality: Adopts high-quality electronic components, resistant to mechanical stresses, wear, and voltage fluctuations, compliant with relevant industrial standards, suitable for harsh industrial environments[5][6][7]
- Packaging: New and original with factory-sealed packaging, professional anti-static bag for transportation protection[4]
Application Fields
The ALSTOM EP3-E-4-EN is widely applied in various industrial scenarios, including but not limited to:
- Manufacturing Industry: Used in automated production lines for process control, equipment control, and data acquisition, optimizing production efficiency and reducing downtime[1][6].
- Power Industry: Applied in power generation systems, power distribution equipment, and related control systems for data processing and signal transmission[5][7].
- Petrochemical & Chemical Industry: Suitable for process control and monitoring in petrochemical plants, ensuring stable operation of production processes[5].
- General Industrial Automation: Used in various industrial equipment control scenarios, including pump, fan, and conveyor system control, as well as dust removal systems[7].
- Other Fields: Compatible with diverse industrial automation systems, suitable for applications requiring safe signal transmission, precise process regulation, and compact installation[2][4].
