RoboteQ Dual Channel Digital Motor Controller AX2550 - Manual (Page 25)

AX1500 Motor Controller User’s Manual 25
Technical features
• User defined purpose (RS232 mode only)
• 2 Extra analog inputs. 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 (optional)
•
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 5mOhm ON resistance (RDSon) MOSFET transistors
•
Synchronous Rectification H Bridge
•
12 to 40 V operation
•
Terminal strip up to AWG12 high current wire
• Temperature-based Automatic Current Limitation
•
30A up to 30 seconds (per channel)
•
25A up to 1 minute