Nidec Commander CDE 550 Simulator

Software simulator for the Nidec Commander CDE 550 inverter with a graphical interface, developed in Python with PyQt6.

What’s New in Version 0.0.2

Complete localization of the user interface in Italian
Improved alarm handling with reduced false positives
Performance optimizations during startup and load variations
Updated documentation with detailed CHANGELOG

Features

Realistic simulation of Nidec Commander CDE 550 inverter behavior
Intuitive graphical interface with PyQt6 fully localized in Italian
Serial communication via pyserial
Support for main control commands
Fault and alarm simulation with advanced management
Real-time parameter monitoring
Event and error logging

Prerequisites

Python 3.8 or higher
Pip (Python package manager)
Python virtual environment (recommended)

Installation

Clone the repository:

git clone https://github.com/Nsfr750/CDE550-sim.git
cd CDE550-sim

Create and activate a virtual environment (optional but recommended):

# On Windows
python -m venv venv
.\venv\Scripts\activate
   
# On macOS/Linux
python3 -m venv venv
source venv/bin/activate

Install dependencies:
```
pip install -r requirements.txt
```

Usage

Start the simulator:
```
python main.py
```
The graphical interface will show:
- Inverter status
- Operating parameters
- Event log
- Simulation controls
For serial connection:
- Go to Connection -> Connect
- Select the desired COM port
- Set the communication speed (baud rate)
- Click “Connect”

Supported Serial Commands

Command	Description	Example
`RUN`	Start the inverter	`RUN`
`STOP`	Stop the inverter	`STOP`
`RST`	Reset alarms	`RST`
`FREQ <value>`	Set frequency (Hz)	`FREQ 50.0`
`DIR <1\\|-1>`	Set direction	`DIR 1` (forward)
`STATUS`	Show complete status	`STATUS`
`HELP`	Show command list	`HELP`

Project Structure

CDE550-sim/
├── main.py              # Application entry point
├── inverter_sim.py      # Inverter simulation logic
├── serial_handler.py    # Serial communication handling
├── script/              # User interface and help files
│   ├── help.py          # Help window
│   ├── serial_dialog.py # Serial connection window
│   └── version.py       # Version management
├── requirements.txt     # Project dependencies
├── README.md            # Main documentation
└── CHANGELOG.md         # Change log

Contributing

Contributions are welcome! To propose improvements:

Fork the project
Create a feature branch (git checkout -b feature/AmazingFeature)
Commit your changes (git commit -m 'Add some AmazingFeature')
Push to the branch (git push origin feature/AmazingFeature)
Open a Pull Request

License

Distributed under the GPL-3.0 License. See LICENSE for more information.

Contact

Author: Nsfr750
Email: [nsfr750@yandex.com]
Repository: https://github.com/Nsfr750/CDE550-sim