1. Producte acabatview
The SMARTGEN HGM1790N genset controller is designed for single unit automation and monitoring control, suitable for both generator and pumping unit applications. It supports manual and remote start/stop operations. This controller monitors and protects genset operation by collecting and analyzing data such as generator voltage, current, water temperature, and oil pressure. Fault conditions are displayed on the graphical LCD, providing effective alarm signals for timely maintenance.
Característiques principals:
- Low cost controller designed to start/stop a generator manually and remotely.
- Suitable for 1-3 phase gasoline and diesel gensets.
- Designed for front panel mounting.
- Survives cranking dropouts.
- Generator protection, built-in alarms and warnings.
- Graphical LCD display with backlight and LED indicators for clear status monitoring.
- Silicone panel and buttons for enhanced high and low temperature adaptation.
- Wide power supply range DC (8~35)V, compatible with 12V or 24V starter batteries.
2. Configuració i instal·lació
Proper installation is crucial for the reliable operation of the HGM1790N controller. This section outlines the physical mounting and electrical connections.
2.1 Instal·lació física
The HGM1790N controller is designed for front panel mounting. Ensure the panel cutout dimensions are accurate for a secure fit. The case dimensions are 95mm x 86mm x 46.5mm, and the panel cutout is 78mm x 66mm. When installing, ensure the waterproof rubber gasket is used between the controller and the panel fascia to achieve IP55 protection level.

Figura 2.1: Frontal view of the HGM1790N controller, showing the LCD display, LED indicators, and control buttons (Stop, Auto, Start).
2.2 Connexions elèctriques
All electrical connections should be made with the power supply disconnected. Refer to the wiring diagram for detailed connections. The controller operates on a DC (8~35)V power supply, compatible with 12V or 24V starter batteries. Ensure correct polarity when connecting the battery (B+ and B- terminals).

Figura 2.2: posterior view of the HGM1790N controller, displaying the labeled terminal blocks for various inputs and outputs, including Magnetic Pickup, Engine Temp Input, Oil Pressure Input, Aux. Input, Remote Start Input, Crank Output, Fuel Output, Em. Stop Input, B+, B-, GENS (L, N), Load (I*, I), Idle Output, Stop Output, and Aux. Output.

Figure 2.3: Detailed wiring schematic for the HGM1790N controller, illustrating connections for power, load, remote start, auxiliary inputs, engine sensors (oil pressure, temperature), and magnetic pickup. Note: Start and fuel output ports should use large capacity relays. When sensor port configured as "high digital input is active", hanging in air means high electrical level is selected; cannot be connected to power supply positive.
Notes importants sobre el cablejat:
- Start and Fuel Output: These ports require large capacity relays for proper operation.
- Configuració del sensor: If a sensor port is configured for "high digital input is active", leaving it unconnected (hanging in air) will result in a high electrical level. Do not connect such a port directly to the positive power supply.
- Compatibilitat del sensor: The controller is compatible with multiple temperature, pressure, and fuel level sensors. These can be user-defined and used directly. Temperature and pressure sensors can be used in parallel with an annunciator, providing analog quantity and increasing protection level.
3. Instruccions de funcionament
The HGM1790N controller offers three primary operating modes: Manual, Auto, and Stop. Operation is managed via the touch-buttons on the front panel.
3.1 botons de control
- Stop Button (Red): Used to stop the genset and enter Stop mode.
- Auto Button (White/Grey with swirl icon): Used to select Auto mode, enabling remote start/stop functionality.
- Start Button (Green): Used to manually start the genset.
3.2 Modes de funcionament
Mode de parada: In this mode, the genset is stopped. Press the Stop button to enter this mode. The controller will cease all operations and clear any active alarms.
Mode manual: To manually start the genset, press the Start button. The controller will initiate the starting sequence. To stop, press the Stop button.
Mode automàtic: Press the Auto button to enable automatic operation. In Auto mode, the controller will respond to remote start/stop signals. The genset will start automatically upon receiving a valid remote start signal and stop when the signal is removed or a fault occurs.
3.3 Parameter Monitoring and Display
The graphical LCD displays various genset parameters and fault conditions. Parameters measured and displayed include:
- Generador Voltage (V)
- Generator Frequency (Hz)
- Generator Power (kW)
- Generator Current (A)
- Percentatge de càrregatage (%)
- Pressió de l'oli (kPa)
- Temperatura (°C/°F)
- Nivell de combustible (%)
- Total Running Time (H, max. 199999 hours)
- Voltage (V)
- Velocitat del motor (RPM)
- Temps d'inici acumulats (màx. 199999 vegades, que es mostra a l'ordinador)
Parameter thresholds and delay values can be adjusted via the front panel or through a USB port connected to PC software.
4. Manteniment
Regular maintenance ensures the longevity and optimal performance of your HGM1790N controller. While the unit is designed for durability, periodic checks are recommended.
- Neteja: Keep the front panel clean and free of dust and debris. Use a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Connexions: Periodically check all wiring connections for tightness and signs of corrosion. Loose connections can lead to intermittent operation or faults.
- Condicions ambientals: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage to internal components.
- Actualitzacions de firmware: Comproveu el del fabricant website for any available firmware updates that may improve performance or add features. Updates are typically performed via the USB port with PC software.
5. Solució De Problemes
The HGM1790N controller provides fault protection and display functions. When a fault occurs, the graphical LCD will display the condition, and effective alarm signals will be provided.
5.1 Problemes comuns i solucions
| Problema | Causa possible | Solució |
|---|---|---|
| El controlador no s'encén. | No hi ha font d'alimentació o volum incorrectetage. | Check battery connections (B+, B-). Ensure power supply is within DC (8~35)V range. |
| Genset fails to start in Manual mode. | Incorrect wiring for crank/fuel output, or engine issue. | Verify crank and fuel output wiring, ensure large capacity relays are used. Check engine's starting system. |
| Genset fails to start in Auto mode. | No remote start signal, or incorrect remote start input wiring. | Check remote start signal source and wiring to the controller's remote start input. |
| Inaccurate sensor readings (Oil Pressure, Temp, Fuel Level). | Sensor malfunction, incorrect sensor type selected, or wiring issue. | Verify sensor wiring. Check controller settings to ensure the correct sensor type is configured. Replace faulty sensor if necessary. |
| Alarm displayed on LCD. | Indicates a fault condition (e.g., low oil pressure, high temperature, over-voltagi). | Identify the specific alarm message on the LCD. Address the underlying issue (e.g., check oil level, coolant level, generator output). |
For persistent issues, refer to the detailed fault codes and diagnostic procedures in the comprehensive technical manual (if available from the manufacturer) or contact customer support.
6. Especificacions tècniques
This section provides detailed technical specifications for the HGM1790N controller.

Figure 6.1: Official specification table for the HGM1790N genset controller, detailing items such as Working Voltage, Power Consumption, Alternator Voltage/Frequency, Sensor Speed Voltage/Frequency, Relay Outputs, Case Dimensions, Panel Cutout, CT Secondary Current, Working/Storage Conditions, Protection Level, Insulation Intensity, and Weight.
| Item | Contingut |
|---|---|
| Voltage | DC (8~35)V, Continuous Power Supply |
| Consum d'energia | <1.2W (mode d'espera: <0.5W) |
| Alternador Voltage Entrada | AC 15V ~ AC 360V (ph-N) |
| Freqüència de l'alternador | 50/60Hz |
| Sensor de velocitat Voltage | 1.0 V a 24 V (RMS) |
| Freqüència del sensor de velocitat | Max. 10KHz |
| Inici de la sortida de relé | 1Amp DC28V DC B+ power supply |
| Sortida de relé de combustible | 1Amp DC28V DC B+ power supply |
| Aux. Sortida 1 | 1Amp DC28V DC B+ power supply |
| Aux. Sortida 2 | 1Amp DC28V DC B+ power supply |
| Aux. Sortida 3 | 1Amp DC28V DC B+ power supply |
| Entrada digital programable | Actiu quan està connectat a B- |
| Dimensions de la caixa | 95 mm x 86 mm x 46.5 mm |
| Retall del panell | 78 mm x 66 mm |
| CT corrent secundari | Classificació: 5A |
| Condicions de treball | Temperature: (-25~+70)°C, Humidity: (20~93)%RH |
| Condició d'emmagatzematge | Temperatura: (-25~+70)°C |
| Nivell de protecció | IP55 (When waterproof rubber gasket installed between the controller and panel fascia) |
| Intensitat d'aïllament | Connecteu AC2.2kV voltage entre AC alt voltage terminal i baix voltagterminal e (corrent de fuga per sota de 3 mA en 1 minut). |
| Pes | 0.18kg (approx. 8.1 ounces) |
7. Informació de la garantia
Specific warranty details for the SMARTGEN HGM1790N controller are typically provided at the point of purchase or on the manufacturer's official website. Please retain your proof of purchase for warranty claims. Standard warranties usually cover defects in materials and workmanship under normal use. Damage resulting from improper installation, misuse, or unauthorized modifications is generally not covered.
For detailed warranty terms and conditions, please refer to the documentation included with your product or visit the official SMARTGEN weblloc.
8. Atenció al client
If you encounter issues not covered in the troubleshooting section or require further assistance, please contact SMARTGEN customer support or your authorized dealer.
Fabricant: SMARTGEN
For the most up-to-date contact information and support resources, please visit the official SMARTGEN website. When contacting support, please have your product model (HGM1790N) and purchase details ready.





