RoboClaw 2x7A Dual Channel Motor Controller RoboClaw 2x7A, 34VDC Dual Channel Brushed DC Motor Controller Data Sheet Version 2.3 (c) 2016 Basicmicro. All Rights Reserved.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Feature Overview: • • • • • • • • • • • • • • • • • • • • • • • • • • 7.5 Amps Continuous Per Channel 15 Amps Peak Per Channel Channel Bridging Supported Dual Quadrature Decoding 9.8 million PPS Decoding Multimode Interface TTL Serial USB Port Analog Interface R/C Input Control Limit, Home and E-Stops Up to 34VDC Operation Air Cooled 3.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet User Regulated Power Output RoboClaw provides regulated power (BEC) for user devices. A high efficiency switching regulator supplies 5VDC at up to 1 Amp. This voltage can be used to power external sensors, encoders, MCUs and other electronics. The regulated user power is automatically current limited and thermally protected. Main Battery The peak operational input voltage depending on the model can be up to 34VDC, 60VDC or 80VDC.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Hardware Overview: H A G F STAT1 STAT2 ERR I B E ID Function D C DESCRIPTION A Status LEDs Provides RoboClaw status information. B USB Port Communicate with RoboClaw via USB. C Control Inputs S1,S2,S3,S4 and S5 control inputs. D Encoder Inputs Dual encoder input and power pins. E Logic Battery Logic battery jumper setup and logic battery power input. F Motor Channel 1 Motor driver output screw terminals for channel 1.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Control Interface The RoboClaw uses standard male pin headers with 0.100” (2.54mm) spacing. The pin headers are ideal for use with standard servo cables and other popular interface connectors. The table below list the pins and their respective functions. All pins are 5V tolerant and output 3.3V for compatibility with processor such as Raspberry Pi and Arduino.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Logic Battery (LB IN) The logic circuit of RoboClaw can be powered from a secondary battery wired to LB IN. A logic battery will prevent brownouts when the main battery is low or under heavy load. The positive (+) terminal is located at the board edge and ground (-) is the inside pin closest to the heatsink. Encoder Power (+ / -) The pins labeled + and - are the source power pins for encoders.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Main Battery Screw Terminals The main power input can be from 6VDC to 34VDC on a standard RoboClaw and 10.5VDC to 60VDC or 80VDC on an HV (High Voltage) RoboClaw. The connections are marked + and - on the main screw terminal. The plus (+) symbol marks the positive terminal and the negative (-) marks the negative terminal. The main battery wires should be as short as possible. ! Do not reverse main battery wires or damage will occur.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Control Modes RoboClaw has 4 main functional control modes explained below. Each mode has several configuration options. The modes can be configured using Motion Studio or the built-in buttons. Refer to the RoboClaw User Manual for installation and setup instructions. RC Using RC mode RoboClaw can be controlled from any hobby RC radio system. RC input mode also allows low powered microcontrollers such as a Basic Stamp to control RoboClaw.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Wiring Basics There are several wiring configurations for RoboClaw. Each configuration will have unique wiring requirements to ensure safe and reliable operation. The diagram below illustrates a very basic wiring configuration used in a small motor system where safety concerns are minimal. This is the most basic wiring configuration possible.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Wiring Safety In all system with movement, safety is a concern. This concern is amplified when dealing with higher voltages. The wiring diagram below illustrates a properly wired system. An external main power cut off is required (SW1). The external cut off can consist of a high amperage mechanical switch or a contactor.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Logic Battery An optional logic battery is supported. Under heavy loads the main power can suffer voltage drops, causing potential logic brown outs which may result in uncontrolled behavior. A separate power source for the motor controllers logic circuit, will remedy potential problems from main power voltage drops. The logic battery maximum input voltage is 34VDC with a minimum input voltage of 6VDC.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Bridging Channels RoboClaws dual channels can be bridge to run as one channel, effectively doubling its current capability for one motor. Damage will result if RoboClaw is not set to bridged channel mode before wiring. Download and install Motion Studio. Connect the motor controller to the computer using an available USB port. Run Motion Studio and in general settings check the option to combine channels.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Mechanical Specifications Characteristic Weight Model 2X7A Min Typ Max 0.65 (18) Rating Oz (g) 1.67” (42.41mm) 1.9” (48.30mm) Dimensions 0.114” (2.89mm) 1.43” (36.32mm) 0.64” (16.25mm) 1.63” (41.40mm) (c) 2016 Basicmicro. All Rights Reserved.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Electrical Specifications Characteristic Min Main Battery 6 Logic Battery 6 Typ 12 Maximum External Current Draw (BEC) Max Rating 34 VDC 34 VDC 1.2 A A Motor Current Per Channel 7.5 15 Motor Current Bridged 15(2) 30(1,2) On Resistance 8 mOhm Logic Circuit Current Draw 30mA mA Input Impedance 100 Ω (2) (1,2) Input 0 5 VDC Input Low -0.3 0.8 VDC Input High 2 5 VDC I/O Output Voltage 0 3.
RoboClaw 2x7A Dual Channel Motor Controller Data Sheet Warranty Basicmicro warranties its products against defects in material and workmanship for a period of 1 year. If a defect is discovered, Basicmicro will, at our sole discretion, repair, replace, or refund the purchase price of the product in question. Contact us at sales@basicmicro.com. No returns will be accepted without the proper authorization. Copyrights and Trademarks Copyright© 2015 by Basicmicro, Inc. All rights reserved.
