RoboteQ AX3500 Computer Accessories User Manual


 
AX3500 Motor Controller Users Manual 27
Technical features
Motor temperature sensor inputs
External voltage sensors
User defined purpose (RS232 mode only)
2 Extra analog inputs (on RevB hardware). Used as:
Potentiometer input for position while in analog command mode
User defined purpose (RS232 mode only)
One Switch input configurable as
Emergency stop command
Reversing commands when running vehicle inverted
General purpose digital input
One general purpose 24V, 2A output for accessories
Up to 2 general purpose digital inputs
Optical Encoder Inputs
Inputs for two Quadrature Optical Encoders
up to 250khz Encoder frequency per channel
two 32-bit up-down counters
Inputs may be shared with four optional limit switches per channel
Internal Sensors
Voltage sensor for monitoring the main 12 to 40V battery system operation
Voltage monitoring of internal 12V
Temperature sensors on the heat sink of each power output stage
Sensor information readable via RS232 port
Low Power Consumption
On board DC/DC converter for single 12 to 40V battery system operation
Optional backup power input for powering safely the controller if the motor batteries
are discharged
Max 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 power consumed by output stage when motors are stopped
Regulated 5V output for powering R/C radio. Eliminates the need for separate R/C
battery
High Efficiency Motor Power Outputs
Two independent power output stages
Optional Single Channel operation at double the current
Dual H bridge for full forward/reverse operation
Ultra-efficient 2.5mOhm ON resistance (RDSon) MOSFET transistors
Synchronous Rectification H Bridge
12 to 40 V operation
High current Fast-on power connection tabs for power stage
Temperature-based Automatic Current Limitation