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The RoboClaw Solo motor controllers from Ion Motion Control (formerly Orion Robotics) can control a single brushed DC motor using USB serial, TTL serial, RC, or analogue inputs. An integrated quadrature decoder make it easy to create a closed-loop speed control system.
The RoboClaws from Ion Motion Control (formerly Orion Robotics) are a family of efficient, versatile, synchronous regenerative motor controllers. They can supply brushed DC motors with 7.5 A, 15 A, 30 A, 45 A, or 60 A continuous (depending on the model) at voltages from 6 V to 34 V, and they allow for peak currents well above the maximum continuous ratings. The “Solo” versions feature a single motor control channel while the dual versions (denoted by a “2x” in their names) offer two channels for controlling a pair of motors.
|Operating voltage:||6 V to 34 V||6 V to 34 V|
|Continuous output current:||30 A||60 A||7.5 A||15 A||30 A||45 A||60 A|
|Peak output current:||60 A||120 A||15 A||30 A||60 A||60 A||120 A|
|5V BEC(1) max current:||1.2 A||1.2 A (V5B or later)||3 A|
|Size||60 × 32.5 × 23.5 mm||48 × 42 × 17 mm||74 × 52 × 17 mm||100 × 86 × 25 mm|
|Weight:||130 g||18 g||60 g||295 g|
1 Battery Eliminator Circuit
The RoboClaws have a USB interface that acts as a virtual serial (COM) port, allowing it to be controlled directly from a computer, and they feature built-in commands for controlling acceleration, deceleration, distance, speed, current sense, voltage limits and more. Several other interface modes are supported by the RoboClaw as well: it can be controlled via TTL serial for use with an embedded systems, RC hobby servo pulses for use as an RC-controlled electronic speed control (ESC), or analogue voltages for use with potentiometers or analogue joysticks.
RoboClaw automatically supports 3.3V or 5V logic levels, travel limit switches, home switches, emergency stop switches, power supplies, braking systems and contactors. Power supplies can be used by enabling the built in voltage clamping control feature. A built-in switching mode BEC supplies 5VDC at up to 1.2 A or 3 A (depending on controller model) for powering user devices.
The RoboClaws can be operated without feedback for open-loop speed control, or they can be used with a variety of feedback types for closed-loop speed or position control. Quadrature encoders with up to 19.6 million pulses per second are supported and can be auto tuned using Ion Studio, which is a free downloadable application. In addition, a wide range of sensor inputs such as potentiometers and absolute encoders are supported. RoboClaw’s closed loop functionality creates absolute control over speed and direction regardless of load changes.
RoboClaw incorporates several protection features including temperature, current, over voltage and under voltage limits. Several user definable settings such as maximum current limit, maximum and minimum battery voltages are provided for more refined control.
Ion Motion Control has written an Arduino library for the RoboClaw that makes it easy to interface these motor controllers with an Arduino. The library comes with several example sketches that demonstrate different methods of controlling the RoboClaw.
Note: Ion Motion Control was formerly Orion Robotics, which was previously Basic Micro. Ion Motion Control uses the following product names and number for the RoboClaw controllers:
“RoboClaw Solo 30A Motor Controller”, Item Id: ION408/IMC408
“RoboClaw Solo 60A Motor Controller”, Item Id: ION410/IMC410
“RoboClaw 2x7A Motor Controller”, Item Id: ION404/IMC404 (replaces “RoboClaw 2x5A”, Item Id: ION403/IMC403)
“RoboClaw 2x15A Motor Controller”, Item Id: ION412/IMC412
“RoboClaw 2x30A Motor Controller”, Item Id: ION413/IMC413
“RoboClaw 2x45A Motor Controller”, Item Id: ION418/IMC418
“RoboClaw ST. 2x45A Motor Controller”, Item Id: ION419/IMC419
“RoboClaw 2x60A Motor Controller”, Item Id: ION414/IMC414
RoboClaw versions V5 and above have USB Micro-B connectors; older USB RoboClaws had a USB Mini-B connector.
|Size:||60 × 32.5 × 23.5 mm|
USB; non-inverted TTL serial (2-way);
RC servo pulses; analogue voltage1
|Minimum operating voltage:||6 V|
|Maximum operating voltage:||34 V|
|Continuous output current per channel:||30 A|
|Peak output current per channel:||45 A|