RO tation + TRA nslation = Automation
Controllers are the core of automation. We develop individual solutions for
different applications.
Every drive axis is equipped with an axis controller with a microprocessor. A master
controller or a PC communicates with many of such axis controllers. There is no
limitation for the amount of axes.
Programming, installation and test are easy to understand due to the modular
stucture and the use of parallel processes. All customer commands are pure text
commands.
The communication with the PC is via Rs232 or USB.
Our master processor boards communicates with up to 12 axes.
Interpolation using all 12 axes (not in real time) is possible. The PC based program
calculates the comlicated motions, transfers the position commands as a package
to the master. The master controlls by hardware the status of the slaves and
executes the program flow.
Example: 3 stations of 5 axes each controlled via 3 independent USB channels.
Example: controller with display, built to customer´s wish
Universal axis controller with micro stepping for 2-phase step motors
We developed a series of application specific controller boards. The in house
board layout enables the use of up to date electronic components.
We are using modern CPLD (complex programmable logic device) to integrate
the function of many ICs in one device. A compiler software is taking the job of
defining the inside routing of the CPLD. The boards are smaller and less complex
by using such components.
We integrate analogue input and output devices according to customer´s wish.
One board is providing:
LR272C basic version
Microcontroller
Serial port TTL
8 digital outputs TTL
8 digital inputs TTL
4 digital inputs for limit and reference switches
2 analogue inputs 0..5 V
2 D/A converter for variable micro steps 1/4 to 1/200
Driver with power stages
2 phase a 2.5 A at 12 to 50 V
max. driving current adjustable by software
max. holding current adjustable by software
Software in EPROM
Communication with master or PC
Selectable axis number (DIL switch)
Ramp generation for acceleration and deceleration
100 speeds, 20 ramps
Automatic step length adjustment
Limit switch control, reference drive
External pulse input possible
Customer specific subroutines available
LR272C CL version with encoder counter
32 bit counter for encoder signals
3 Line Driver 20mA receiver for (A,B,Z) signals
Positioning in closed loop using encoders or glass scales
Short delivery time.
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ROTRA Your partner for automation since 1987