1. Product Overview
This manual provides essential information for the safe and efficient operation of the PULME 6SL3210-1PE21-8UL0 G120 Power Module PM240-2 Inverter. This device is a three-phase variable frequency drive designed for motor speed control in various industrial applications.
Key features include:
- Enhanced performance and stability.
- Comprehensive safety protections: motor short-circuit detection, output phase loss, over-current, over-voltage, under-voltage, overheat, and overload protection.
- Low noise and electromagnetic interference due to advanced PMW control technology.
- Strong anti-jamming capability for reliable operation.
The inverter is suitable for applications such as fan systems, water pumps, conveyor belts, milling machines, drilling machines, winding machines, mixers, extruders, slitters, winders, compressors, ventilators, grinders, elevators, and centrifuges.
2. Safety Information
WARNING: Read all safety instructions carefully before installation, operation, or maintenance. Failure to follow these instructions may result in serious injury or death.
- Ensure power is disconnected before performing any installation or maintenance.
- Only qualified personnel should install, operate, and maintain this equipment.
- Verify correct voltage and current ratings before connecting to the power supply. This unit operates on three-phase 380-480V.
- Ground the inverter properly to prevent electrical shock.
- Do not operate the inverter with damaged cables or components.
- Keep the inverter clear of flammable materials and ensure adequate ventilation.

Figure 1: Front view of the PULME G120 Power Module PM240-2 Inverter. This image shows the main unit with its ventilation grilles and connection points on the top and front panel.
3. Setup and Installation
Follow these general steps for installing the inverter. Refer to the detailed wiring diagrams provided with the product packaging for specific connections.
- Mounting: Securely mount the inverter in a well-ventilated area, ensuring proper clearance for airflow and maintenance. Use appropriate mounting hardware.
- Power Wiring: Connect the three-phase 380-480V AC power supply to the designated input terminals. Ensure correct phase sequence.
- Motor Wiring: Connect the motor to the inverter's output terminals. Ensure proper insulation and grounding for all motor connections.
- Control Wiring: Connect any necessary control signals (e.g., start/stop, speed reference, fault indicators) to the control terminals.
- Grounding: Connect the inverter's ground terminal to a reliable earth ground.
- Initial Inspection: Before applying power, visually inspect all connections for correctness and tightness. Ensure no loose wires or foreign objects are present.

Figure 2: Side view of the PULME G120 Power Module PM240-2 Inverter, highlighting potential connection points and mounting features. This view provides a clearer perspective of the unit's depth and side panel details.
4. Operating Instructions
The inverter operates using a V/F (Voltage/Frequency) closed-loop control mode, providing precise motor speed regulation.
- Power On: After verifying all connections, apply power to the inverter. The display (if present) should illuminate.
- Parameter Setting: Configure the necessary operating parameters using the control panel or external programming tools. This includes motor parameters, acceleration/deceleration times, and speed references.
- Start/Stop: Initiate motor operation via the designated start command (e.g., digital input, control panel button). Stop the motor using the stop command.
- Speed Control: Adjust the motor speed using the configured speed reference input (e.g., analog input, potentiometer, digital input).
- Monitoring: Monitor the inverter's status and motor performance through the display or communication interface.
The inverter's design ensures low noise and minimal electromagnetic interference during operation, contributing to a stable industrial environment.
5. Maintenance
Regular maintenance ensures the longevity and reliable operation of your inverter.
- Cleaning: Periodically clean the inverter's ventilation grilles and cooling fins to prevent dust accumulation, which can lead to overheating. Use compressed air or a soft brush.
- Connection Check: Annually inspect all electrical connections for tightness and signs of corrosion. Re-tighten as necessary.
- Environmental Check: Ensure the operating environment remains within specified temperature and humidity ranges.
- Component Inspection: Check for any visible damage to cables, terminals, or the inverter casing. Replace damaged components immediately.
CAUTION: Disconnect all power before performing any maintenance procedures.
6. Troubleshooting
The inverter is equipped with various protection mechanisms. If an error occurs, the unit will typically trip and display a fault code. Refer to the product's detailed fault code list for specific diagnostics.
| Problem | Possible Cause | Solution |
|---|---|---|
| Over-current Trip | Motor overload, short circuit in motor wiring, rapid acceleration. | Check motor load, inspect motor wiring for shorts, increase acceleration time. |
| Over-voltage Trip | High input voltage, rapid deceleration with high inertia load. | Check input voltage, increase deceleration time, consider braking resistor. |
| Under-voltage Trip | Low input voltage, power supply instability. | Check input voltage, ensure stable power supply. |
| Overheat Trip | Insufficient ventilation, high ambient temperature, clogged cooling fins. | Ensure proper ventilation, clean cooling fins, reduce ambient temperature. |
| Output Phase Loss | Loose motor connection, broken motor wire, motor winding fault. | Check motor wiring connections, inspect motor for damage. |
If the problem persists after attempting these solutions, contact technical support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | PULME |
| Model Name | PULME (refer to 6SL3210-1PE21-8UL0 for specific model) |
| Model Number | 6SL3210-1PE21-8UL0 |
| Power Module Type | PM240-2 |
| Rated Power | 7.5KW |
| Number of Power Supply Phases | Three phases |
| Rated Voltage | 380-480V AC |
| DC Power Supply Properties | Current type |
| Control Mode | V/F closed loop |
| Item Weight | 1100 Grams |
| ASIN | B0D22B6V6X |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or contact the manufacturer directly. Ensure you have your product model number (6SL3210-1PE21-8UL0) and purchase details available when seeking support.
The product is designed with robust protection features, including motor short-circuit detection, output phase loss protection, over-current protection, over-voltage protection, under-voltage protection, overheat protection, and overload protection, contributing to its reliability.