Smart, Compact, Low-Cost Pocket Motion Controller

The 3.9" x 5.0" x 1.5" single-axis ethernet motion controller, combined with an 800W sine drive, is for single-axis motor control applications. The Galil Motion Control DMC-300xx pocket motion controller series combines a high performance motion controller in a low cost, compact package. The DMC-300xx is also available as a controller-only model, which can connect to a stepper or servomotor amplifier of any power range. Using a 32-bit RISC processor and improved power technology, the DMC-300xx provides higher speed, better power efficiency, and smaller size than their prior generations.

Designed for single-axis motor control applications, where compact size, low cost, and remote location are important, the DMC-300xx provides higher speed than Galil’s prior generation single-axis controllers. The 125µs servo loop update time is twice as fast and the 15MHz encoder frequency and 3MHz stepper pulse output are 25% faster.

The DMC-30012 model comes with an 800W amplifier for driving brushless servomotors at 20VDC to 80VDC, up to 10A continuous, 15A peak. The fully digital, transconductance amplifier is a sinusoidally commutated brushless motor amplifier, which minimizes torque ripple compared to drives using trapezoidal commutation. This is especially important for applications using low friction linear motors. The amplifier provides commands for initialization of the brushless motor using either hall sensors or encoder feedback.

Other features of the DMC-300xx motion controller include PID compensation with velocity and acceleration feed-forward, non-volatile memory for user programs, multitasking for simultaneously running up to four programs, and I/O processing for synchronizing motion with external events. Modes of motion include point-to-point positioning, position tracking, jogging, contouring, electronic gearing, ECAM, and PVT.

The DMC-300xx provides optically isolated inputs and outputs as a standard feature. I/O include forward and reverse limit inputs, homing input, eight uncommitted digital inputs, four uncommitted digital outputs, two uncommitted analog inputs, and one uncommitted analog output. The DMC-300xx accepts position feedback from both a main and auxiliary encoder. Quadrature encoder feedback is standard, with BiSS and SSI formats available as an option. Also provided is a 115kb RS232 port.

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Greenville, DE
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