AX2500/2850 Motor Controller Overview

The motors are driven using high-efficiency Power MOSFET transistors controlled using Pulse Width Modulation (PWM) at 16kHz. The AX2500/2850 power stages can operate from 12 to 40VDC and can sustain up to 120A of controlled current, delivering up to 4,800W (approximately 6 HP) of useful power to each motor.

The many programmable options of the AX2500/2850 are easily configured using one- touch Program and Set buttons and a 7-segment LED display. Once programmed, the con- figuration data are stored in the controller's non-volatile memory, eliminating the need for cumbersome and unreliable jumpers.

The AX2850 is the AX2550 controller fitted with a dual channel optical encoder input mod- ule. Optical Encoders allow precise motor speed and position measurement and enable advance robotic applications.

Technical features

Fully Digital, Microcontroller-based Design

Multiple operating modes

Fully programmable using either built-in switches and 7 segment display or through connection to a PC

Non-volatile storage of user configurable settings. No jumpers needed

Simple operation

Software upgradable with new features

Multiple Command Modes

Radio-Control Pulse-Width input

Serial port (RS-232) input

0-5V Analog Command input

Multiple Advanced Motor Control Modes

Independent operation on each channel

Mixed control (sum and difference) for tank-like steering

Open Loop or Closed Loop Speed mode

Position control mode for building high power position servos

Modes selectable independently for each channel

Automatic Joystick Command Corrections

Joystick min, max and center calibration

Selectable deadband width

Selectable exponentiation factors for each joystick

3rd R/C channel input for weapon and accessory output activation

Special Function Inputs/Outputs

2 Analog inputs. Used as

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AX2500/2850 Motor Controller User’s Manual

Version 1.7. February 1, 2005

Page 22
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RoboteQ AX2550/2850 user manual Technical features