1. Overview
The HGM501 gen-set controller is a smart digital controller designed for the control and protection of single generator sets. It integrates functions such as start/stop control, data measurement, alarm indication, and shutdown protection. Featuring LED indicators, the controller is designed for reliability and ease of use.
Equipped with a microprocessor, the HGM501 allows for precise measurement of various parameters, which can be configured directly from the controller's front panel. Its simple wiring, compact structure, and high reliability make the HGM501 suitable for a wide range of diesel and petrol generator sets, providing essential data display and fault protection.
2. Performance and Characteristics
- Nixie Tube Displays: Provides single-phase voltage display and total active power voltage display (calculated assuming a balanced load).
- Multifunction Display: A multifunction nixie tube display allows switching between single-phase frequency, single-phase current, battery voltage, total running time (up to 999 hours), engine temperature, and generator temperature.
- Comprehensive Protection: Includes protection against under voltage, over voltage, under frequency, over frequency, overload, and over temperature. These protections trigger flashing light alarms, followed by shutdown protection after a configurable delay.
- Low Oil Pressure Protection: Features a digital input for low oil pressure, which immediately shuts down the generator to prevent damage.
- User-Friendly Interface: Displayed parameters can be selected using intuitive touch-buttons.
- Configurable Settings: Offers a wide selection of temperature sensor types in its settings. All parameters can be easily set via the front panel.
- Modular Design: Features a modular design with an anti-flaming ABS plastic enclosure, ensuring a compact structure and convenient embedded installation.
3. Technical Data (Specifications)
The following table details the technical specifications of the HGM501 Genset Controller:
| Parameter | Details |
|---|---|
| Operating voltage | DC9.0V to 18V uninterrupted power supply - DC12V system used |
| Overall consumption | <2W (Standby mode ≤1W) |
| Alternator voltage inputs: | |
| Single phase 2-wire (L and N only) | AC 30V - 360V (ph-N) |
| 2-phase 3-wire (L and N only) | AC 30V - 360V (ph-N) |
| 3-phase 4-wire (L and N only) | AC 30V - 360V (ph-N) |
| Alternator frequency | 50/60Hz |
| Start relay output | 7A DC12V power supply output |
| Fuel relay output | 7A DC12V power supply output |
| Case dimensions | 118 mm x 128 mm x 36 mm |
| CT Secondary current | Rated 62.5mA |
| Operating conditions | Temperature: (-25~+70)°C Humidity: (20~90)% |
| Storage conditions | Temperature: (-30~+80)°C |
| Protection level | IP42 |
| Insulation strength | Apply AC1.5kV voltage between high voltage terminal and low voltage terminal; The leakage current is not more than 3mA within 1min. |
| Weight | 0.216kg |
4. Installation
The HGM501 controller is designed for panel mounting. It is secured using fixing clips. The overall dimensions and required panel cutout dimensions are provided below (unit: mm).
5. Operation (Button Description)
The front panel of the HGM501 controller features several displays and buttons for operation and monitoring. Refer to the diagram below for a description of each element.
- Volt. Window: Displays voltage readings.
- Power Window: Displays power (kW) readings.
- Multifunction Window: Displays various parameters such as frequency, current, battery voltage, run time, engine temperature, and generator temperature.
- Left/Right Buttons: Used for navigation or parameter adjustment.
- Function (FUNC) Button: Used to access and confirm functions or settings.
- Up/Down Buttons: Used for navigating menus or adjusting values.
- Engine Oil Warning: An indicator light for low oil pressure.
6. Wiring Diagram and Terminal Connections
A typical wiring diagram for the HGM501 controller is provided below, illustrating the connections for generator, load, and control signals.
Terminal Connections Description
The following tables detail the function, recommended wire size, and remarks for each terminal on the HGM501 controller.
| Terminal | Function | Wire size | Remarks |
|---|---|---|---|
| 1 | Generator Voltage L | 1.0mm² | |
| 2 | Generator Voltage N | 1.0mm² | |
| 3 | Load CT Secondary I (out) | 1.0mm² | Current Transformer Secondary max current 62.5mA |
| 4 | Load CT Secondary I* (in) | 1.0mm² | |
| 5 | Aux. Input1 | Can be configured as programmable digital input port (active connect to B-); Also can be configured as generator temp. sensor. | |
| 6 | Engine Temperature Sensor Input | ||
| 7 | Low Oil Pressure Input | Low oil pressure digital or sensor signal input port; must be connected to B- | |
| 8 | Battery Negative Input B- | 1.5mm² | Controller power supply input B- |
| 9 | Electric Lock ON Signal Input B+ | 1.5mm² | Controller power supply input B+ and fuel relay output (activates when Electric key is turned to ON position) |
| 10 | Electric Lock START Input | 1.5mm² | Hand-turn start, start relay output (Output activates when electric lock key is turned to START position) |
| 11 | Start Relay Output | 1.5mm² | Rated current 7A; power supplied by terminal 13 |
| 12 | Fuel Relay Output | 1.5mm² | Rated current 7A; power supplied by terminal 13 |
| 13 | Fuel/Start Relay Common Port | 2.5mm² | Fused and connected to start battery positive |
7. Maintenance
To ensure optimal performance and longevity of your HGM501 Genset Controller, regular maintenance is recommended.
- Cleaning: Periodically clean the controller's front panel and enclosure with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Connection Checks: Regularly inspect all terminal connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or faults.
- Environmental Conditions: Ensure the operating environment adheres to the specified temperature and humidity ranges to prevent damage to internal components.
- Firmware Updates: While not explicitly mentioned, check the manufacturer's website for any available firmware updates that may improve performance or address known issues.
8. Troubleshooting
This section provides basic troubleshooting steps for common issues. For more complex problems, consult a qualified technician.
- Controller Not Powering On:
- Check the DC12V power supply connection to terminals 8 (B-) and 9 (B+).
- Ensure the battery voltage is within the operating range (DC9.0V to 18V).
- Verify all wiring is correct and secure according to the wiring diagram.
- Generator Fails to Start:
- Check the Electric Lock ON signal input (Terminal 9) and START input (Terminal 10).
- Verify the Start Relay Output (Terminal 11) and Fuel Relay Output (Terminal 12) are functioning correctly.
- Ensure the Fuel/Start Relay Common Port (Terminal 13) is properly connected to the start battery positive.
- Alarm Indication / Shutdown Protection:
- Identify the specific alarm indicated by the flashing lights or display.
- For low oil pressure, check the oil level and the Low Oil Pressure Input (Terminal 7).
- For over temperature, check engine and generator temperatures and the Engine Temperature Sensor Input (Terminal 6).
- For voltage/frequency issues, check generator output and Alternator Voltage Inputs (Terminals 1, 2).
- Incorrect Parameter Display:
- Ensure the correct sensor types are selected in the controller settings.
- Verify connections for current transformers (Terminals 3, 4) and other sensors.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your vendor or the manufacturer directly. Ensure you have your product model number (HGM501) and purchase details available when seeking support.
The seller, YING LI TE Official Store, offers customer support. For direct communication, you may use the provided WhatsApp contact information:
For general inquiries or after-sales service, you can reach out via WhatsApp at +86 13385037939.
