Stepper drives Servostep drives Controllers 2012
Stepper drives Servostep drives Controllers 2012
Stepper drives Servostep drives Controllers 2012
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ASICs<br />
EEA1xx / EEA001 ASICs<br />
Advanced controller for<br />
two phases step motor <strong>drives</strong><br />
Main features:<br />
• With the ASIC components can be build <strong>drives</strong> with:<br />
Description:<br />
The ASIC series (Application Specific Integrated Circuit) has<br />
been designed to resolve all calculation and control problems<br />
for 2 phase stepper motor applications. Thanks to their<br />
features it’s possible to build with these components a customized<br />
Full Digital drive or to develop personal application<br />
control boards.<br />
The EEA1xx and EEA001 are complete Full Digital controllers<br />
around which to build higher quality <strong>drives</strong> for two<br />
phases step motors. They integrate functions of sequencer<br />
and drive power stages control and protection against overcurrent,<br />
over /under-voltage and over-temperature.<br />
Interfaced to the standard external controls (Step, Direction)<br />
or to Synchronous / Asynchronous serial interface the ASICs<br />
ensure the highest motor control performance in terms of<br />
rotation smoothness.<br />
They can execute Micro-stepping movements at resolution<br />
of up to 1/128 step with sinusoidal envelope (Maximum<br />
step frequency: 2.56 MHz).<br />
Besides, they feature a motor rotation smoothing tuning<br />
functionality to optimize the motor performance in every<br />
application in terms of:<br />
- high speed and torque at shaft;<br />
- low heating of the <strong>drives</strong>;<br />
- low vibrations;<br />
- low heating of the motor;<br />
- no resonances;<br />
- very low mechanical noise;<br />
- simplicity of the drive power stages hardware control.<br />
The interface to the drive power stages is designed to offer<br />
maximum compatibility with the most popular integrated<br />
circuits for the driving of MOSFET and IGBT gates, also being<br />
compatible with monolithic integrated circuits.<br />
Thanks to the ASICs built in communication field bus (RS232,<br />
SPI, I 2 C), the user can set step angle and phase current of the<br />
motor, define type of movement and activate the automatic<br />
current reduction at motor standstill and manage digital<br />
I/Os, analogue input, and other operations of the drive.<br />
√ high speed and high torque to the shaft<br />
√ low resonance and low motor vibrations<br />
√ extremely low mechanical noise<br />
√ cless motor heating<br />
√ less electronics heating<br />
Step [clk_u]<br />
Direction [clk_d]<br />
Enable<br />
Fault<br />
3<br />
digital<br />
inputs<br />
1<br />
digital<br />
output<br />
EEA1xx only 1<br />
analog input<br />
Opto<br />
optional<br />
Opto<br />
optional<br />
EEA1xx only 1<br />
serial interface<br />
user settings<br />
Step angle<br />
Motor<br />
current<br />
Smoothing<br />
current<br />
Functioning<br />
mode<br />
50