Description
Product Description
The HIEE401782R0001 (LTC391 AE01) module is a monitoring component developed for ABB UNITROL® excitation platforms. It provides continuous measurement of electrical parameters and stable feedback signals required for generator excitation control. Its compact form factor and robust PCB layout support reliable operation in high‑temperature control cabinets and demanding industrial environments.
The module integrates easily into DCS‑based architectures and offers Ethernet service access for configuration, diagnostics, and firmware interaction. Its signal‑processing circuitry is designed to minimize noise and drift, ensuring accurate readings during load variations and transient conditions. Mechanical dimensions and connector placement allow straightforward installation in both new and retrofit systems.
Technical Specifications
| Parameter |
Specification |
| Model / Part Number |
HIEE401782R0001 / LTC391 AE01 |
| Product Type |
Monitoring Module |
| Brand |
ABB |
| Product Range |
UNITROL® Excitation Systems |
| System Compatibility |
DCS‑integrated excitation and generator control |
| Primary Functions |
Voltage and current monitoring, diagnostic feedback, system status reporting |
| Communication Interface |
Ethernet service port |
| Construction |
Industrial‑grade components, high‑temperature‑rated PCB |
| Dimensions |
15 × 12.1 × 3 cm |
| Weight |
0.14 kg |
| Condition |
New |
| Origin |
Sweden |
| HS Code |
8537101190 |
| Availability |
In stock |
| Minimum Order Quantity |
1 |
| Lifecycle Status |
Active |
Functional Overview
The HIEE401782R0001 / LTC391 AE01 module provides precise monitoring of excitation‑related electrical values, enabling stable generator control and improved system responsiveness. Its internal architecture is optimized for low thermal drift and consistent measurement accuracy. The Ethernet service interface supports maintenance operations, diagnostic retrieval, and system configuration without interrupting plant processes.
Application Scenarios
• Generator excitation systems requiring continuous monitoring • Power plant turbine‑generator control platforms • Industrial DCS‑based automation systems • Retrofit upgrades for legacy UNITROL® modules • Facilities requiring high‑reliability monitoring hardware
Similar Model Comparison
| Model |
Function |
Communication |
Notes |
| LTC391 AE01 |
Monitoring module |
Ethernet |
Standard monitoring and diagnostics |
| LTC392 AE01 |
Protection module |
Fieldbus |
Adds protection logic and trip functions |
| LTC390 AE01 |
Control module |
Ethernet |
Focused on excitation output control |
FAQ
Q: Is this module compatible with earlier UNITROL® systems? A: Yes. It supports multiple UNITROL® generations when paired with the correct firmware version.
Q: Does the module require calibration after installation? A: Factory calibration is included. System‑level calibration may be required depending on the excitation configuration.
Q: Can it operate in high‑temperature environments? A: The module uses components rated for elevated temperatures typical in generator control cabinets.
