AX1500 Cost Optimized, 2 x 30A Brushed DC Motor Controller   Datasheet

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Product Description

Roboteq’s AX1500 controller is 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.

The controller can be reprogrammed in the field with the latest features by downloading new operating software from Roboteq.

Technology Information

Detailed description of the technology and features of all AX-family controllers can be found on the Technology page

	AX1500	AX1500SC
Power Stage
Operating Voltage	12V to 40V DC
Number of Channels	2	1
Max Current   30s   1min   3 min   1h	30A 25A 20A 20A	60A 50A 40A 40A
Surge Current	>150A	>250A
MOSFETs per Channel	4	2 x 4
ON Resistance	10 mOhm	5 mOhm
Current Limiting	By automatic power output reduction according to user preset limit and temperature
Synchronous Rectification	Yes - Allows regenerative braking
Temperature protection	Automated current limit reduction starting at 80o C (175o F) heat sink temperature
Voltage protection	Output shut off below 12V and above 43V
Power Wiring	Terminal strip. AWG 12 max cable	Terminal Strip used in pairs. 2 x AWG 12 max cable
Command
R/C Inputs	2 + 1 accessories (1.0ms - 1.5ms center - 2ms, Adjustable)
Serial Interface	RS232. 9600 bauds
Analog Interface	2 inputs (0V - 2.5V center - 5V)
Input Corrections	Ch1 & Ch2 mixing for tank steering. Programmable deadband. 4 Exponent & Logarithmic command curves.
Input/Outputs
Optical Encoder Interface	May be added as option
Analog Inputs	4 inputs, 8-bit resolution
Digital Outputs	1 output, 24V 1A max
Digital Inputs	up to 3 general purpose inputs
5V Supply Output	100mA max for Radio or other devices
Operating Modes
Open Loop Speed	Forward & Reverse Speed Control. Separate or Mixed
Closed Loop Speed	Use Tachometer on analog inputs & PID
Position Mode	Use Potentiometer on analog inputs & PID
Controller Configuration	Jumper-less using PC utility
Physical
Operating Temperature	-40 to +85oC heat sink temperature
Enclosure	Unenclosed, board level
Controller size	4.2" (106mm) wide x 4.2" (106mm) long x 1.5" tall (38mm) tall including heat sink
Cables	10" (25cm) RC cable to Radio. 4' (1m) RS232 cable for PC connection
Weight	3 oz (85g)
	AX1500	AX1500SC

Download

Product Documentation
Document	Description	Version	Date	Size	Get
AX1500 Datasheet	Product description and specifications	1.9b		2 pages - 570K
AX1500 Quickstart Manual	Summary product installation and operation manual	1.9b		10 pages - 1.2M
AX1500 Users Manual	Detailed product installation and operation manual - Registration Required	1.9b		186 pages - 3.4M

Operating Software
File	Description	Version	Date	Size	Get
roboup19b-060107	Controller Firmware for AX500/1500/2550/2850/3500	1.9b	06/01/07	10K
roborun-setup19b	PC Utility for all Roboteq Controllers, including Firmware	1.9b	06/01/07	3.4M

Application Notes
Document	Description	Pages & Size	Get
AN1001	Switching RS232 to RC Mode on-the-fly	2 pages - 320K
AN70417	Gravity Alignment of an X-Y platform	2 pages - 501K
AN70614	Understanding Regeneration	18 pages - 902K