Assan GA-250 User Manual

GA-250 Micro Gyro Manual
GA-250 Micro Gyro Manual v3.2
Page 1 of 4
ASSAN Electronic Control Technology Co., Ltd http://www.assan.cn
The GA-250 is a high performance advanced AVCS/MEMS gyro, especially designed and optimized for R/C
helicopters. It is very small in size and very light weight. It is easy to set up and compatible with a wide range of
(digital only) servos. Its head-lock performance is superior, even for hard 3D applications.
Technical Features
 Sensor: MEMS
 System control: AVCS (Angular Vector Control System).
 Dual-gain function: two operational modes can be selected through the transmitter; AVCS mode and Rate
mode.
 Compatible with all digital servos, including 1520µS, 760µS and 960µS.
Technical Parameters
1. Operating voltage: DC 3.0V ~ 9.0V
2. Operating current: 20mA (at 5.0V)
3. Operating temperature: -15⁰C ~ 60⁰C
4. Dimensions: 21 × 21 × 10mm
5. Weight: 8.0g (including connectors and wires)
Gain Channel
Connector
(Red)
Gain Channel Plug(Red)
Rudder Channel Connector (Black)
Tail Servo Connector
Status LED

Assan GA-250 Specifications

General

Type	Gyro
Operating Voltage	4.8V - 6V
Sensitivity Adjustment	Yes, via potentiometer
Mounting	Double-sided tape or screws
Compatibility	Compatible with most RC aircraft

Summary

Technical Features

Gyro Sensor and Control System

Details the MEMS sensor and AVCS control system.

Operational Modes and Compatibility

Explains dual-gain function and digital servo compatibility.

Technical Specifications

Electrical and Environmental Specs

Covers operating voltage, current, and temperature.

Physical Specifications

Details the gyro's dimensions and weight.

Status Light Indicators

Operating Mode Lights

Describes the status light behavior for different operating modes.

Error Code Lights

Explains status light codes indicating errors.

Initial Setup Procedure

Step-by-Step Gyro Setup

Provides sequential steps for first-time gyro setup.

Servo Type Selection

Digital Servo Compatibility Guide

Details how to select the correct digital servo type to avoid damage.

Configuration Settings

Gyro Direction Reversing

Explains how to set the correct rotation direction for the gyro.

High Servo Endpoint Adjustment

Guides on setting the maximum tail rotor pitch without binding.

Low Servo Endpoint Adjustment

Guides on setting the maximum tail rotor pitch without binding.