RoboteQ AX2850, Руководство пользователя, Страница: 27 / 200

AX2550 Motor Controller User’s Manual 27
Technical features
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Tachometer inputs for closed loop speed control
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Potentiometer input for position (servo mode)
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Motor temperature sensor inputs
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External voltage sensors
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User defined purpose (RS232 mode only)
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2 Extra analog inputs (on RevB hardware). Used as:
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Potentiometer input for position while in analog command mode
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User defined purpose (RS232 mode only)
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One Switch input configurable as
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Emergency stop command
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Reversing commands when running vehicle inverted
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General purpose digital input
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One general purpose 24V, 2A output for accessories
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Up to 2 general purpose digital inputs
Optical Encoder Inputs (AX2850 only)
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Inputs for two Quadrature Optical Encoders
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up to 250khz Encoder frequency per channel
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two 32-bit up-down counters
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Inputs may be shared with four optional limit switches per channel
Internal Sensors
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Voltage sensor for monitoring the main 12 to 40V battery system operation
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Voltage monitoring of internal 12V
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Temperature sensors on the heat sink of each power output stage
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Sensor information readable via RS232 port
Low Power Consumption
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On board DC/DC converter for single 12 to 40V battery system operation
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Optional backup power input for powering safely the controller if the motor batteries
are discharged
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Max 200mA at 12V or 100mA at 24V idle current consumption
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Power Control wire for turning On or Off the controller from external microcomputer
or switch
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No power consumed by output stage when motors are stopped
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Regulated 5V output for powering R/C radio. Eliminates the need for separate R/C
battery
High Efficiency Motor Power Outputs
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Two independent power output stages
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Optional Single Channel operation at double the current
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Dual H bridge for full forward/reverse operation
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Ultra-efficient 2.5mOhm (1.25mOhm on HE version) ON resistance (RDSon) MOS-
FET transistors
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Synchronous Rectification H Bridge