Roboteq's AX2550 controller and its AX2850 variant are designed to convert commands
received from a R/C radio, Analog Joystick, wireless modem, or microcomputer
into high voltage and high current output for driving one or two DC motors.
Designed for maximal ease-of-installation, it is delivered with all necessary
cables and hardware and is ready to use in minutes.
The controller's two channels can either be operated independently or mixed
to set the direction and rotation of a vehicle by coordinating the motion on
each side of the vehicle. The motors may be operated in open or closed loop
speed mode. Using low-cost position sensors, they may also be set to operate
as heavy-duty position servos.
Power Stage |
Operating
Voltage |
|
| Number
of Channels |
2 |
| Max
Current:
30s
1min
3min
1hr+ |
140A
120A
100A
80A |
| Surge
Current |
>500A |
| MOSFETs
per Channel |
16 |
ON
Resistance |
2.5
mOhm |
Synchronous
Rectification |
Yes
- allows regenerative braking |
Current
Limiting |
By
automatic power output reduction according to user preset limit
and temperature |
Temperature
Protection |
Automated
current limit reduction starting at 175F (80C) case temperature |
Voltage
Protection |
Output
shut off below 12V and above 43V |
Power
Wiring |
8g
wire |
Command |
R/C Inputs |
2 + 1 accessories (1.0ms - 1.5 ms center - 2ms, Adjustable) |
Serial Interface |
RS232, 9600 bauds |
Analog Interface |
Two inputs (0V - 2.5V center - 5V) |
Input Corrections |
Ch1 and Ch2 mixing for tank steering. Programmable deadband.
Four exponent and Logarithmic command curves |
Input/Outputs |
Analog Inputs |
Two inputs, 8-bit resolution |
Digital Outputs |
One output, 24V 2A max |
Digital Inputs |
Three general purpose inputs |
5V Supply Output |
100mA max for radio or other devices |
Operating Modes |
Open Loop Speed |
Forward and Reverse speed control, seperate or mixed |
Closed Loop Speed |
Use tachometer on analog inputs and PID |
Position Mode |
Use potentiometer on analog inputs and PID |
Controller Configuration |
Jumper-less. Configuration using built-in switch and LED display
or PC utility |
Physical |
Operating Temperature |
-40 to +85C case temperature |
Enclosure |
Heat-sinking Aluminum Extruded Case |
Controller Size |
5.5 x 1.6 x 9 in. including mounting brackets |
Cables |
10 in. RC rable to radio. 4 in. RS232 cable for PC connection |
Weight |
3.3lbs. |
Quick Start Manual 
Datasheet