Manual Corvus-eco
Introduction 10
Technology
Corvus-eco is a complete high resolution stepping motor con-
troller/driver combination for alternatively 2 or 3 axes.
Corvus-eco is equipped with a 32-bit, 133MHz Risc processor
working with a Real-Time-Operating-System (RTOS) for scal-
able performance and high precision synchronized control.
For Closed Loop control a digital PID control loop updates all
axes with a
cycle time of 250 µs for precise and accurate po-
sitioning.
A extremely micro-step resolu
tion up to 690.000 steps/rev.
provides ultra-smooth stepper positioning capability and a
very constant velocity profile tracking for challenging position-
ing applications.
Low impedance MosFet motor drivers guarantee high motor
performance
and a cool driver electronics.
Motion types
Corvus-eco provides point-to-point, jogging, linear interpolat-
ed moving and also velocity controlled moves with the possi-
bility of on the fly velocity updates.
Software limits can be s
et to improve the systems safety.
A advanced limit switch teach-in procedure determines the
working
range and ensures the precision of homing.
Resolution, velocity and acceleration
The elaborated controller technology enables a low-noise
positioning and an extremely high stepping resolution. In the
progra
mmable mode, a positioning resolution of 1,5 nm is
achieved.
The resolution in the joystick mode is 23.2 fm (femtometer).
Due to the high computing power Corvus-eco has a high
speed
and acceleration dynamic from 15nm/s until 25mm/s
(pitch =1mm.)
Linear- or sin²-accelerations modes are also supported.
Options
Corvus-eco is supplied with a great variety of options.
See Table 2, “Function survey,” page 12.
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