EL300 Controller
Written by Michael Krochmal   
Wednesday, 10 October 2007 01:16


Photo shows EL300 electronic controller box 

Our EL300 electronic controller, which is powered from the AC100 universal power supply (see below), assumes all low-level stage control functions. Our stages are fitted with electronics which communicate with the EL300 electronic controller. The stages also incorporate limit switches which detect movement of each stage into an inappropriate area at the limits of motion. The JS300 joystick, when connected to the electronic controller boxes, allows user control of stage movement. The stages can be moved manually by using the manual control knobs for each axis mounted on each stage. When used in the motorised mode, the EL300 electronic controller units carry out the motor control functions at the lowest control level, thus relieving the computer of much of the detailed control activity.

The controllers are connected to our stages by cables which carry both the low voltage dc power for the motors and the digital signals which constitute the position feedback from the positional encoders on the motors, as well as the limit switch information. The controller contains a microprocessor which looks after the complicated low-level activities (such as the non-linear closed-loop PID control of the stage) and which also controls the joystick. The controller, in turn, communicates bi-directionally with the PC via the communications port.

With the controller connected to a PC and an appropriate program running on the PC, the stage can be moved :
a) manually, in the same way as an ordinary manual stage
b) in "dumb" mode, using the joystick, and
c) in PC controlled mode, using commands issued to the stage from the PC via the controller, either as raw codes or embedded in application software.

If the stage is moved manually in either the a) or b) modes above, but with the controller switched on, the electronics in the controller keep track of the stage movement, and thus 'know' the location of the stage at all times. Depending on the lengths one wishes to go to in creating appropriate user interface software, the stage commands can be issued in a number of ways, including :

1. as a "move to co-ordinates" command (either relative to the current co-ordinates, or relative to an arbitrary zero reference point),
2. as a pre-defined series of movements (such as moving on a pre-defined raster), or
3. using graphical modes, such as an on-screen representation of the image field (or 3-D image space), with a mouse dictating stage movements.



Photo shows PS100 universal low-voltage power supply 

The EL300 electronic controller is powered by our PS100 universal low-voltage power supply, which will automatically adapt to ac supply voltages between 85 to 264 Volts and a range of supply frequencies from 47 to 400 Hz. Where possible, we supply electrical plugs which match those in use in our client countries. We use the information shown in a table on the website of Korjo Pty. Ltd., a major manufacturer of adapter plugs and other travel products. Please check out the table shown under "Adapter Guide" at Korjo Travel Products Website and let us know if there are any inaccuracies for your area. Please also check out : Current Solutions World Plugs and Voltages


Australian EMC-related requirements and Autoscan compliance

The Australian Government introduced legislation relating to the problem of Electromagnetic Interference (EMI). This legislation is called the Electromagnetic Compatibility (EMC) Framework and came into effect on January 1, 1999. The legislation is enforced by the Australian Communications Authority (ACA), and has introduced technical limits for emissions from electrical and electronic products and communications services. Compliance is required for all Australian domestic sales of the equipment to which the legislation applies.

Autoscan gained accreditation in 1999, and we were issued a unique supplier code number, which is indicated on all systems sold in Australia which are subject to the legislation.





Contact Details

Autoscan Systems Pty. Ltd.
Street Address : 4/293 Bay Street, Brighton 3186 Victoria Australia
Postal Address : PO Box 112, Ormond 3204 Victoria Australia
Telephone : +61 3 9596 8065 / +61 3 9596 8092
Fax : +61 3 9596 8369
To send us an email - Please click here

Webmaster : Michael Krochmal
This site established 23 October 2007
Supersedes www.autoscan.com.au website established 1995