Description
DEIF DELOMATIC-3 LITE
Product Introduction
Generator automation becomes difficult to troubleshoot when the controller, protection functions, synchronization logic, and I/O are distributed across several cabinet modules. DEIF Delomatic-3 was designed as a modular multifunction generator control and protection platform, combining generator control with power-management functions in a configurable system architecture. DEIF documentation covers dedicated modules for power supply, control, synchronization measurement, analog output, protection, current protection, and system interfacing.
The DELOMATIC-3 LITE designation should be treated carefully during procurement. DEIF’s official documentation identifies the platform as Delomatic-3 / DM-3, but I could not verify “LITE” as a separate official hardware model. For a replacement project, the actual DGU, CP, module part numbers, project number, firmware, and cabinet configuration are more important than the “LITE” description. DEIF states that Delomatic-3 project numbers begin with 43xxxx, which provides a useful way to identify the installed system.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | DELOMATIC-3 LITE |
| Manufacturer / Brand | DEIF |
| System Family | Delomatic-3 / DM-3 |
| Product Type | Multifunction generator control and protection system |
| Primary Application | Generator control and protection |
| Power Management | Supported by Delomatic-3 system architecture |
| Generator Unit | DGU-based architecture |
| Control Panel | CP-based operator/control architecture |
| System Network | ARC ring LAN |
| Functional Modules | PSM, SCM, AOM, OPM, IPM, PRM, CRM, CM and related modules |
| Synchronization | Supported through SCM modules |
| Analog Regulation | Delomatic generator control can provide ±20 mA regulation outputs |
| Typical Applications | Marine, offshore, generator plants, industrial power systems |
| Project Identification | Delomatic project number begins with 43xxxx |
| Exact Configuration | Project-dependent; verify installed module and firmware configuration |
DEIF’s official documentation confirms the modular Delomatic-3 architecture and provides separate documentation for the control module, input module, power supply, protective relay, synchronization measuring modules, analog output module, and other system components.
Application Scenarios & Pain Points
1. Marine generator control
Delomatic-3 is particularly relevant to marine electrical systems where multiple generator sets must be coordinated with protection, synchronization, load sharing, and power-management functions. DEIF describes Delomatic as a multifunctional system capable of power-management functions in addition to generator control and protection.

DELOMATIC-3 LITE
2. Generator synchronization and AVR/governor control
The system can interface with generator governors and automatic voltage regulators. DEIF application documentation describes Delomatic control outputs of up to ±20 mA for analog governor/AVR control, depending on the installed configuration.
3. Legacy marine automation maintenance
A common maintenance problem with Delomatic-3 installations is that the system is not a single interchangeable controller. The cabinet can contain multiple specialized boards. DEIF’s documentation separately identifies SCM-1/SCM-2 synchronization modules, AOM-1 analog output modules, PSM-1 power supply modules, OPM-1 output modules, IPM-1 input modules, and CM-2 control/interface modules.
4. Generator protection and power management
The architecture is suited to installations where generator protection and operating control need to work together rather than being implemented as unrelated standalone devices. This is especially relevant to marine switchboards and distributed generating plants.
Related Products
- DEIF Delomatic-3 DGU — generator unit forming the main control-system architecture.
- DEIF Delomatic-3 CP1 — control-panel component associated with the Delomatic-3 system.
- DEIF Delomatic-3 PSM-1 — power supply module.
- DEIF Delomatic-3 SCM-1 — synchronization measuring/control module.
- DEIF Delomatic-3 SCM-2 — synchronization measuring module.
- DEIF Delomatic-3 AOM-1 — analog output module.
- DEIF Delomatic-3 OPM-1 — output module.
- DEIF Delomatic-3 IPM-1 — input module.
- DEIF Delomatic-3 CM-2 — control/interface module.
- DEIF Delomatic-3 CRM-1 — current protection relay module.
These are documented as separate Delomatic-3 components rather than interchangeable variants of one controller.
Engineer’s Guide — Field Pitfalls to Avoid
1. Do not purchase on “Delomatic-3 Lite” alone
This is the most important point. I could not find an official DEIF document establishing DELOMATIC-3 LITE as a standalone ordering code. Treat the designation as a project or inventory description until the actual hardware label and documentation confirm otherwise.
2. Record the Delomatic project number
DEIF states that the Delomatic-3 project number begins with 43 followed by four additional digits. Record that number before replacing a DGU, CP, or system module. It can help identify the application-specific configuration.
3. Do not substitute modules by function alone
A Delomatic-3 cabinet may contain several modules with very different functions. A synchronization module, analog-output module, power-supply module, and protection module are not interchangeable simply because they occupy similar rack positions.
4. Check the governor and AVR interface
DEIF’s application documentation shows that Delomatic equipment can interface with different governor and AVR architectures. Signal scaling, polarity, resistor networks, terminal assignments, and control direction must be checked against the installed application rather than copied from another Delomatic project.
5. Protect the system configuration
For a shutdown-critical replacement, record the installed module type, hardware revision, firmware/software information, project number, terminal wiring, and configuration before removing the original hardware. A replacement PCB that is electrically correct but carries an incompatible application configuration may still fail commissioning.
FAQ
What is DELOMATIC-3 LITE?
The available documentation identifies Delomatic-3 / DM-3 as DEIF’s multifunction generator control and protection platform. I could not verify “LITE” as a separate official DEIF model designation, so the term should be treated as a configuration or inventory description until confirmed from the equipment nameplate.
What does Delomatic-3 control?
Delomatic-3 is designed for generator control and protection and can also perform power-management functions. Its modular architecture supports synchronization, generator protection, analog regulation, digital I/O, and system interfacing.
Is Delomatic-3 a PLC?
Not in the conventional standalone PLC sense. It is a dedicated multifunction generator control and protection system designed around generator-set and power-management applications. Its architecture uses dedicated functional modules rather than a generic PLC CPU and I/O rack.
Can Delomatic-3 control a generator governor and AVR?
Yes, depending on the installed module and application configuration. DEIF’s application notes document Delomatic interfaces to governors and AVRs, including analog control signals and relay-based control arrangements.
What information should be supplied when replacing a Delomatic-3 unit?
The most useful identification data are the complete DEIF part number, module designation, hardware revision, Delomatic project number, firmware information, cabinet/system configuration, and photographs of the nameplate and connectors. For Delomatic-3, the project number beginning with 43xxxx is particularly useful.
Is DELOMATIC-3 still a current DEIF platform?
DEIF maintains Delomatic-3 documentation and support information, including an end-of-life notice in its support center. For a replacement project, verify current support status and whether the proposed replacement corresponds to the original project configuration.
What is the biggest procurement risk?
The biggest risk is treating “ LITE” as though it were a complete, universal part number. Delomatic-3 is a configurable system. For a field replacement, identify the exact DGU, CP, module, revision, project number, and firmware rather than relying on the family name alone.
