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Micromech has introduced the Delta Tau Geobrick LV-PC product range, which is targeted specifically at high-end applications in 19in rack formats.

The multi-axis format, incorporating drives that are software configurable for any type of motor technology, is said to be a suitable match for synchrotron and FEL beamlines and adaptive optics on telescopes.

They enable the straightforward control of DCMs, goniometers, slits, hexapods (any non-cartesian mechanical device) and multiple feedback devices, which can be averaged or incorporated into cascaded filters for force loops, for example.

This product includes a multi-axis motion control engine that is capable of simple single-axis point-to-point motion up to extremely complex multi axes and co-ordinated motion incorporating forward and inverse kinematics calculations.

An advanced built-in mathematics capability ensures straightforward control for demanding applications.

Flexible feedback interfaces for many device types from standard quadrature, analogue, serial (SSI, Endat, Hiperface, Yaskawa and Tamagawa), Sin/Cos with 4,096 interpolation, resolver and LVDT in many flexible configurations.

The bricks include eight built-in amplifiers individually software configurable to control many types of motor technology, including two-phase stepper, AC servo and DC servo in any mix.

The Geobrick is a 5A continuous, 15A peak at 60VDC bus input or 90VDC bus input control.

Also incorporated is a full-function integrated PC.

A fibre-optic interface port (macro port) enables an expansion of the on-board eight axes to a further eight motor axes (16 in total) devices that can be connected onto the macro ring.

This arrangement includes: higher-power amplifiers in ranges from 240V 1.5/4.5A up to 460V 30/60A, both single and three phase; an analogue +/-10V axes interface for controlling third-party amplifiers such as Piezo or five-phase stepper; a pulse and direction interface for controlling existing installations where amplifiers already exist; and user digital I/O expansion and analogue I/O.

All devices connected to the macro ring run at servo update frequencies.

High-speed digital capture and high-speed digital outputs simplify data capture and control.

Typical applications include laser modulation at servo frequencies.

Other features further include 64 user programmable logic controllers (PLCs) for asynchronous tasking (32 compiled and 32 interpreted).

There are two high-speed PLCs that run at servo cycle speeds for time-critical monitoring and control.

Individually selectable 5V/24V axes flag control (home +/- limit and so on) with brake control and a general-purpose relay output facility.

There are USB, Ethernet, RS232 and DPRAM communications ports and fieldbus communications including Modbus over Ethernet, Devicenet, Profibus, Ethercat, CANopen and CC-Link.

In addition, there are up to 32 user digital inputs and 16 digital outputs.


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