Roboteq offers a range of dual-channel DC motor controllers. All our products share a common technology platfom and differ mostly in current handling range and the type of enclosure. The table below shows the differences between the various product families. Each family includes further variant that you can explore by clicking on the magnifier icon.

	AX2550	AX2850	AX3500	AX1500	AX500
Power Stage
Operating Voltage	11 to 40V (60V option)		11 to 40V		8-24V
Number of Channels	2 motor channels. (single channel, double current versions available)
Max Current	2 x 120A		2 x 60A	2 x 30A	2 x 15A
Surge Current	>250A			>150A	>50A
Current Limiting	User presettable
ON Resistance	5 mOhm (2.5 mOhm HE version)		5 mOhm	10 mOhm	100 mOhm
Synchronous Rectification	Yes - Allows regenerative braking				No
Temperature protection	Automated current limit reduction starting at 80o C (155o F) heat sink temperature
Voltage protection	Output shut off below 12V and above 43V				Shut off below 11V
Command
R/C Inputs	2 inputs(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 Inputs	-	Input for dual Incremental Encoders		Option	-
RC Ouputs	-	-	8 pulse outputs	-	-
Analog Inputs	2 inputs, 8-bit resolution
Digital Outputs	1 output, 24V 2A max				1 out, 24V 100mA max
Digital Inputs	2 or 3 general purpose inputs
5V Supply Output	Yes. For Radio or other devices
Operating Modes
Open Loop Speed	Forward & Reverse Speed Control. Separate or Mixed
Closed Loop Speed	Tach feedback	Analog Tach or Encoder feedback		Analog Tach feedback
Position Mode	Analog feedback	Analog or Encoder feedback		Analog feedback
Controller Configuration	Jumper-less using PC utility
Physical
Enclosure	Extruded aluminum enclosure		Unenclosed, board level
	AX2550	AX2850	AX3500	AX1500	AX500