Fully Digital, Microcomputer-based design

Multiple operating modes Fully programmable using either built-in switches and 7 segment LED 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 advanced motor control modes

Independent channel operation or mixed control (sum & difference) for tank-like steering Open Loop or Closed Loop Speed mode Position control mode for building high power position servos Modes can be set independently for each channel

Multiple command modes

Radio-Control Pulse-Width input Serial port (RS-232) input 0-5V Analog Voltage input

Optical Encoder input (AX2850 only)

Support up to two Quadrature Optical Encoders 250kHz Max frequency per Encoder Support 4 optional limit switches Two 32-bit up/down counters Automatic speed computation

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

High efficiency Motor Power outputs

Two independent power output stages Dual H bridge for full forward/reverse operation Ultra-efficient 2.5 mOhm (standard), 1.25mOhm (HE) ON resistance (RDSon) MOSFET transistors 12 to 40 V operation SmartAmps Automatic current limitation based on algorithmic and actually measured transistor temperature.     Standard Version High Efficiency (HE) Version   30 seconds: 120A 140A   1 min: 100A 140A   Continuous: 80A 120A Longer high Amps operation with forced cooling High current 8 AWG cable sets for each power stages >250A (>500A HE version) peak Amps per channel 16 kHz Pulse Width Modulation (PWM) output Heat sink extruded case

Special function inputs/outputs

2 Analog inputs. May be used as Tachometer inputs for closed loop speed control Potentiometer input feedback for position (servo mode) Motor temperature sensor inputs User defined purpose (RS232 mode only) One Switch input configurable as Emergency stop command Reversing commands when running vehicle inverted Up to 2 general purpose for accessories or weapon One 24V, 2A output for accessories One low-level digital output for accessories Up to 2 digital input signals

Built-in Sensors

Voltage sensor for monitoring the main 12 to 40V battery Voltage monitoring of internal 12V Temperature sensors on heatsinks of each power stages

Advanced Data Logging Capabilities

12 internal parameters, including battery voltage, captured R/C command, temperature and Amps accessible via RS232 port Data may be logged in a PC, PDA or microcomputer Data Logging Software supplied for PC and Palm Pilot PDA

Advanced safety features

Safe power on mode Optical isolation on R/C control inputs Automatic Power stage off in case of electrically or software induced program failure Watchdog for automatic motor shutdown in case of command loss (R/C and RS232 modes) Visible run and failure diagnostics on 7 segment LED display Current limited output with programmable limit value Motor temperature sensing and protection Emergency Stop input signal and button Overvoltage and Undervoltage protection Built-in controller overheat sensors

Low Power Consumption

On board DC/DC converter for single 12 to 40V battery system operation Optional 12V backup power input for powering safely the controller if the main motor batteries are discharged 200mA at 12V or 100mA at 24V idle current consumption Power Control wire for turning On or Off the controller from external microcomputer or switch No consumption by output stage when motors stopped Regulated 5V output for powering R/C radio. Eliminates the need for separate R/C battery.

Sturdy and compact mechanical design

Built from Aluminum heat sink extrusion with mounting brackets Efficient heat sinking. Operates without a fan in most applications. 7” (178mm) long by 5.5” wide (140mm) by 1.8” (40mm) high Operating temperature: Standard Version: -20o to +70o C ambient High Efficiency (HE) Version: -40o to +80o C ambient 3.2 lbs (1500g)