This document is an instruction manual for the Thunder Tiger ACE RC Zero X, a digital engine speed governor designed for model helicopters. The device automatically monitors and maintains constant RPM using an active integral control algorithm with a user-friendly interface.
The guide details installation procedures including sensor mounting on the fan and bridge, as well as connection to the throttle servo. It explains two operation modes: Unlock Mode for initial setup and Lock Mode for maintaining engine speed between 10,500 and 21,000 RPM. The manual provides step-by-step instructions for calibration, setting RPM via LED flashes or ATV values, adjusting gain settings, and performing flight tests.
| Control system | Digital advanced control |
|---|---|
| Speed stability accuracy | Less than 1% |
| Control response | 14ms |
| Speed control range | 10,500~21,000rpm |
| Operating voltage range | DC 4.8V~6.0V |
| Current drain | 40mA (at 4.8V, including sensor) |
In Lock Mode, the LED will start to flash. The minimum value is 10,500, and every additional flash indicates 500 RPM more.
The device operates on a DC voltage between 4.8V and 6.0V.
The control response time is 14ms.
The speed stability accuracy is less than 1%.