Product Description

Product Type: EX2100e excitation system ESYS I/O interface board

Redundancy Configuration: H3 Simplex (single, non-redundant)

Designed specifically for EX2100e systems and distinct from H1/H2 redundant architectures

Core Functional Scope

Generator PT/CT signal acquisition

7-channel auxiliary contact inputs

2-channel trip relay outputs

External I/O and system electrical interface

High-speed serial link (HSSL) communication

Redundancy Mode

Operates in Simplex (H3) configuration

No board-level redundancy; system behavior differs from H1/H2 redundant designs

Power Supply & Isolation

Supply Voltage: 55 VDC

Signal Isolation:

Dedicated PT/CT isolation transformers

Control-to-power electrical isolation ≥ 1000 VDC

EMC: Compliant with industrial electromagnetic compatibility standards

Communication Interface

Equipped with HSLA HSSL high-speed serial link daughter board

Direct connection to the EX2100e controller

Supports deterministic, real-time data exchange

Physical Specifications

Form Factor: Single-slot, 3U height

Connectors: 6 × Sub-D connectors

Rack Compatibility: EX2100e control rack

Weight: Approx. 0.8 kg

Operating Environment

Temperature: –20 °C to +60 °C

Humidity: 5%–95% (non-condensing)

Designed to withstand vibration and shock associated with generator excitation systems

Protection & Diagnostics

Overcurrent and overvoltage protection

Fault alarm output and operational status indication

Supports generator excitation protection requirements

Core Functions & Advantages
Accurate Signal Acquisition

Processes two generator CT inputs (1 A / 5 A selectable) and two three-phase PT inputs, providing accurate current and voltage feedback for excitation regulation and protective functions.

Flexible I/O Interface

Provides 7 auxiliary contact inputs for external status and interscom signals, along with 2 trip relay outputs for fast fault shutdown and protection coordination.

High-Speed Real-Time Communication

The HSSL daughter board enables high-speed, low-latency communication between the ESYS I/O board and the EX2100e controller, ensuring timely execution of control and protection logic.

Enhanced Electrical Isolation & Reliability

PT/CT isolation transformers combined with power supply isolation effectively suppress electrical