1. Introduction
The SmartGen HAT360 series dual power automatic transfer switch (ATS) controller, including models HAT361 and HAT361C, is designed with a microprocessor core for precise monitoring and control of dual power systems. It accurately measures two-way voltages, detects abnormalities (such as over/under voltage, over/under frequency, loss of phase, and reverse phase sequence), and intelligently manages the transfer between power sources. This controller integrates an LCD display and digital communication capabilities, providing a user-friendly interface for efficient power management.
The HAT361C model includes RS485 communication for remote control and monitoring via Modbus protocol.
2. Safety Information
Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure all power sources are disconnected before performing any installation, wiring, or maintenance.
- Only qualified personnel should install and service this equipment.
- Verify all wiring connections are correct and secure according to the provided diagrams.
- Do not operate the controller if it is damaged or malfunctioning.
- Keep the controller away from moisture, extreme temperatures, and corrosive environments.
- Ensure proper grounding to prevent electrical hazards.
3. Product Overview
The HAT361/HAT361C controllers are designed for dual power ATS applications, offering robust features for reliable power transfer.
3.1 Features and Characteristics
- Configurable for 3P4W, 3P3W, 2P3W, or 1P2W AC systems.
- Intelligent MCU-based monitoring and control.
- S1/S2 master/slave configuration for auto transfer/restore and non-restore modes.
- Supports Auto and Manual operation modes.
- OFF mode disables breaker close/open functions.
- System type settings for S1 Mains S2 Mains, S1 Gen S2 Mains.
- Measures and displays 2-way 3-phase voltage, frequency, and alarm status.
- Suitable for two-breaking, one-breaking, and no-breaking switches.
- Includes switch re-closing function.
- RS485 serial communication port (optional on HAT361C) for remote control, measuring, communication, and adjustment via Modbus protocol.
- Overvoltage, undervoltage, overfrequency, underfrequency, loss of phase, and reverse phase sequence detection.
- Adjustable thresholds for voltage and frequency abnormalities.
- Manual test function for genset start/stop.
- LED indicators for current ATS close status, power status, mode (manual/auto/OFF), and alarms.
- 2-way N wire isolated design.
3.2 Front Panel Layout
The front panel provides visual indicators and control buttons for easy operation.
Figure 1: SmartGen HAT361 Front Panel. Shows S1/S2 indicators, LOAD indicator, OFF button, Auto/Manual buttons, S1 Close/Open/S2 Close buttons, and the SmartGen display.
Figure 2: SmartGen HAT361C Front Panel. Similar layout to HAT361, indicating the 'C' model variant.
4. Setup and Installation
Careful installation and wiring are crucial for the proper functioning of the ATS controller.
4.1 Controller Dimensions and Panel Cutout
The controller is designed for panel mounting. Ensure the panel cutout matches the specified dimensions.
| Measurement | Value |
|---|---|
| Case Dimensions | 132mm x 102mm x 49mm |
| Panel Cutout | 132mm x 102mm |
4.2 Rear Panel and Terminal Description
The rear panel houses all necessary connection terminals. Refer to the diagrams and table below for proper wiring.
Figure 3: SmartGen HAT361 Rear Panel with Wiring Terminals. Shows inputs for S1/S2 AC voltage, GEN START, S1/S2 CLOSE INPUT, RS485, and AUX OUTPUT.
Figure 4: HAT361C Panel Diagram. Detailed view of terminal numbering on the rear panel.
| No. | Item | Remark |
|---|---|---|
| 1 | A1 | AC 3 phase 4 wire voltage input of S1 (For single phase input, only connect A1,N1) |
| 2 | B1 | |
| 3 | C1 | |
| 4 | N1 | |
| 5 | A2 | AC 3 phase 4 wire voltage input of S2 (For single phase input, only connect A2,N2) |
| 6 | B2 | |
| 7 | C2 | |
| 8 | N2 | |
| 9 | NO | ATS supply power N (Provide supply power for ATS) |
| 10 | NO | ATS supply power L (Capacity: 12A 250VAC) |
| 11 | L.O. | ATS supply power L (NC for terminal 10 of HAT361) |
| 12 | NO | |
| 13 | COM | Output common port |
| 14 | S1 CLOSE | S1 close output (Capacity: 10A 250VAC) |
| 15 | S2 CLOSE | S2 close output (Capacity: 10A 250VAC) |
| 16 | S1 OPEN OUTPUT | S1 open output (Capacity: 10A 250VAC) |
| 17 | S2 OPEN OUTPUT | S2 open output (Capacity: 10A 250VAC) |
| 18 | GEN START | Genset start output (Capacity: 7A 250VAC) |
| 19 | COM | Input common port |
| 20 | FORCE OPEN | Forced open input (Connect GND of input common port) |
| 21 | COM | Input common port |
| 22 | S2 CLOSE INPUT | S2 close input (Connect GND of input common port) |
| 23 | COM | Input common port |
| 24 | S1 CLOSE INPUT | S1 close input (Connect GND of input common port. Users need to connect this terminal to terminal 27 based on on-site network arrangement, used to connect with the 120Ω resistor inside the controller) |
| 25 | TR | RS485 matching resistor (120Ω impedance matching resistor inside the controller) |
| 26 | TR | |
| 27 | B(-) | RS485 communication port |
| 28 | A(+) | |
| 29 | COM | Common port |
| 30 | AUX INPUT | Aux. input (Connect GND of input common port) |
| 31 | AUX OUTPUT | Aux. output (Capacity: 10A 250VAC) |
| 32 |
4.3 Typical Wiring Diagrams
Below are typical application wiring diagrams. Always consult local electrical codes and standards.
4.3.1 SGG-N/T Application Diagram
Figure 5: SGG-N/T Application Diagram. Illustrates connections for S1 Power Input, S2 Power Input, Load, ATS Controller, and Remote Start for SGG-N/T type switches. Note: Suitable for HAT363 (No Breaking) controller model.
4.3.2 ATYS Application Diagram
Figure 6: ATYS Application Diagram. Illustrates connections for S1 Power Input, S2 Power Input, Load, ATS Controller, and Remote Start for ATYS type switches. Note: Suitable for HAT363 (One breaking) controller model.
4.3.3 PHETENG Application Diagram
Figure 7: PHETENG Application Diagram. Illustrates connections for S1 Power Input, S2 Power Input, Load, ATS Controller, and Remote Start for PHETENG type switches. Note: Suitable for HAT363 (Two breakings) controller model.
4.3.4 Motor Type Application Diagram
Figure 8: Motor Type Application Diagram. Illustrates connections for S1 Power Input, S2 Power Input, Load, ATS Controller, and Remote Start for Motor Type switches. Note: Suitable for HAT361/HAT363 (One breaking) controller model.
5. Operation
This section details the operational modes, key functions, and display information of the controller.
5.1 Indicator Display
The front panel LEDs provide immediate status feedback.
| Indicator | Description |
|---|---|
| S1 Power Indicator | Extinguishes when S1 power blackout; Illuminates when S1 power is normal. |
| S1 Close Indicator | Flashes when S1 power is abnormal (over/under voltage, under/over frequency, loss of phase, reverse phase sequence); Illuminates when S1 is closed, otherwise, it extinguishes. |
| S2 Power Indicator | Illuminates when S2 power is normal; Extinguishes when S2 power blackout. |
| S2 Close Indicator | Flashes when S2 power is abnormal (over/under voltage, under/over frequency, loss of phase, reverse phase sequence); Illuminates when S2 is closed, otherwise, it extinguishes. |
| Alarm Indicator | Illuminates when there is an alarm. |
| OFF Mode Indicator | Illuminates in OFF mode, extinguishes in other modes. |
| Auto Mode Indicator | Illuminates in Auto mode, extinguishes in other modes. |
| Manual Mode Indicator | Illuminates in Manual mode, extinguishes in other modes. |
5.2 Key Function Description
The controller features several keys for navigation and control.
| Icon | Key | Function Description |
|---|---|---|
| ↑ | Up | In main interface, scrolls up the screen; In menu interface, moves cursor up or increases number. |
| ↓ | Down | In main interface, scrolls down the screen; In menu interface, moves cursor down or reduces number. |
| */ok | Set/Confirm/Lamp Test | In main interface, moves cursor and confirms settings. Long press tests lamps (all white screen, all LEDs illuminate, alarms reset). |
| OFF | OFF | Enters OFF mode, controller exits control. |
| Auto | Auto Mode | Enters Auto mode. |
| S1 Close | S1 Close | Active in manual mode; closes S1 outputs, S1 takes load. |
| Open | Open | Active in manual mode; load disconnects. |
| S2 Close | S2 Close | Active in manual mode; closes S2 outputs, S2 takes load. |
| Manual | Manual Mode | Enters Manual mode. |
5.3 LCD Display
The LCD provides detailed information about the system status.
| Content | Description |
|---|---|
| Main Interface Display | |
| S1 Blackout | S1 voltage status |
| S2 Blackout | S2 voltage status |
| Offload | ATS status |
| Genset Working | Genset status |
| Manual Mode | Status line |
| Volt | |
| LL1 | S1 line voltage |
| LL2 | S2 line voltage |
| Volt | |
| LN1 | S1 phase voltage |
| LN2 | S2 phase voltage |
| Freq | |
| F1 | S1 frequency |
| F2 | S2 frequency |
| Phase Sequence | |
| P1 | S1 Phase Sequence |
| P2 | S2 Phase Sequence |
| S1 Failed to Close | Alarm Information |
5.4 Operational Modes
5.4.1 Manual Mode
To enter Manual Mode, press the Manual key. The manual status indicator will illuminate. In this mode, you can manually control the S1 and S2 breakers:
- S1 Close: If the load is open, S1 closes and supplies power to the load.
- S2 Close: If the load is open, S2 closes and supplies power to the load.
- Open: Disconnects the load from both power sources.
5.4.2 Auto Mode
To enter Auto Mode, press the Auto key. The auto status indicator will illuminate. In Auto Mode, the controller automatically transfers the switch based on the status of S1 and S2 power, transfer priority, and auto transfer/restore settings to ensure continuous power supply to the load.
5.4.3 Auto Transfer/Restore Logic
The controller follows specific logic for automatic transfer and restoration. An example of 'S1 master' and 'S2 Mains S2 Gen' control logic is illustrated below:
Figure 9: Auto Transfer/Restore Flowchart. Details the sequence of events for S1 Normal, S1 Abnormal, S2 Normal, and S2 Abnormal conditions, including delays and generator start signals.
5.4.4 Auto Transfer Non-Restore (Mutual Backup Active) Logic
This mode is used when both power sources act as mutual backups.
Figure 10: Auto Transfer Non-Restore (Mutual Backup Active) Flowchart. Illustrates the logic for non-restorative transfer between S1 and S2.
6. Specifications
Detailed technical parameters for the HAT361/HAT361C controllers.
6.1 Technical Parameters
| Items | Contents |
|---|---|
| Operating Voltage | AC supply, voltage range AC170-277V |
| Power Consumption | ≤5W (Standby mode: ≤2W) |
| AC Voltage Input | 3P4W (L-N): AC170V~AC277V 3P3W (L-L): AC170V~AC277V 2P3W (L-N): AC170V~AC277V 1P2W (L-N): AC170V~AC277V |
| Rated Voltage | Rated: 380V |
| Rated Frequency | Range: 50Hz/60Hz |
| Accuracy | Voltage: ±2%, Frequency: ±0.1Hz |
| Close Relay Output | 10A AC250V volts free output |
| Auxiliary Relay Output | 10A AC250V volts free output |
| Genset Crank Relay Output | 7A AC250V volts free output |
| LONG Relay Output | 12A AC275V Active output |
| LINK | SmartGen special interface for program upgrade, parameter configuration |
| RS485 | Modbus-RTU communication protocol, max communication distance is 1000m (HAT361C only) |
| Design Standard | Meet GB/T 14048.11-2016 and IEC/EN 60947-6-1 |
| Safety Requirement | Meet EN 61010-1 (installation category (overvoltage type) III, 300V, pollution degree 2), altitude ≤3000m |
| Case Dimensions | 132mm x 102mm x 49mm |
| Panel Cutout | 132mm x 102mm |
| Working Temperature | (-25~+70)°C |
| Working Humidity | (20~90)%RH |
| Storage Temperature | (-30~+80)°C |
| Protection Level | Front panel IP40 |
| Insulation Strength | Apply AC2.2kV voltage between high voltage terminal and low voltage terminal and the leakage current is not more than 3mA within 1min; insulation resistor 100MΩ |
| Weight | 0.59kg |
6.2 Model Comparison
| Item | HAT361 | HAT361C | HAT363 | HAT363C |
|---|---|---|---|---|
| Inputs (L1,N,70V-277V) | 3+1 | 3+1 | 3+1 | 3+1 |
| Outputs (Fixed + Aux.) | 4+1 | 4+1 | 5+1 | 5+1 |
| Genset Control | • | • | • | • |
| RS485 | • | • | ||
| LONG Output | • | • |
Note: HAT361/HAT361C defaults to one breaking. HAT363/HAT363C defaults to two breakings.
7. Maintenance
To ensure the longevity and reliable operation of your SmartGen ATS controller, follow these general maintenance guidelines:
- **Regular Inspection**: Periodically check the controller for any visible damage, loose connections, or signs of overheating.
- **Cleaning**: Keep the controller's front panel and ventilation openings clean and free of dust. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- **Firmware Updates**: Check the manufacturer's website for any available firmware updates. Follow the instructions carefully if performing an update.
- **Environmental Conditions**: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent premature component failure.
- **Wiring Integrity**: Annually inspect all wiring connections for tightness and corrosion. Loose connections can lead to intermittent operation or damage.
8. Troubleshooting
If you encounter issues with your HAT361/HAT361C controller, consider the following general troubleshooting steps:
- **No Power/Display Off**: Check the power supply to the controller. Ensure all power input terminals are correctly wired and receiving the specified voltage.
- **No Automatic Transfer**: Verify that the controller is in 'Auto Mode'. Check the status of S1 and S2 power sources on the display. Ensure all abnormal conditions (over/under voltage, frequency) are cleared. Review the wiring for S1/S2 voltage inputs and breaker control outputs.
- **Manual Operation Fails**: Ensure the controller is in 'Manual Mode'. Check the wiring to the S1/S2 close and open outputs.
- **Alarm Indicator On**: Check the LCD display for specific alarm messages. Refer to the 'Indicator Display' section for common alarm meanings. Address the underlying issue (e.g., voltage abnormality, frequency deviation).
- **Communication Issues (HAT361C)**: Verify RS485 wiring (A+, B-, GND) is correct and secure. Ensure the 120Ω matching resistor is properly connected if required by your setup. Check communication settings (baud rate, parity) on both the controller and the connected device.
- **Incorrect Readings**: Confirm that the voltage and current transformer ratios (if applicable) are correctly configured in the controller's settings.
If the problem persists after performing these checks, contact technical support.
9. User Tips
- **Parameter Configuration**: Take time to properly configure all parameters, especially voltage and frequency thresholds, to match your specific power system requirements.
- **Test Regularly**: Periodically test the automatic transfer function to ensure the system operates as expected during a power outage.
- **Backup Settings**: If possible, record or back up your controller's configuration settings for quick restoration in case of a reset or replacement.
- **Environmental Protection**: While the front panel is IP40 rated, ensure the overall installation protects the controller from excessive dust and moisture, especially the rear terminals.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized SmartGen dealer or the manufacturer directly. Keep your purchase receipt and product serial number handy when contacting support.
Manufacturer Contact Information:
- Web: www.smartgen.cn/
- Email: sales@smartgen.cn
SmartGen reserves the right to change the contents of this document without prior notice.
