Training session on the electronic layout of the STA Compact. Intended to give a general layout of the unit.

Transcription of Introduction to the Electronics to the STA compact

Welcome to the STA training section on the electronic layout of the STA Compact. This section is designed to give you a general layout of the unit before a detailed one.

Just to make you more familiar with how this block diagram is laid out, we have put circuit boards into gray boxes. The internal components we have put in blue boxes. Internal components are complete assemblies located within the unit. Output orange boxes are complete assemblies. Example would be the keyboard and the monitor.

Green boxes are for automation. Examples of the automation are things like stepper motors which control the x and y movements of Arms 1 and 2, and the pipetter. DC motors control the z movements of Needles 1, 2, and 3 and the Gripper Arm 2. Other examples would be things like bottle switches, pressure switches. Most of this information will be given again in the detailed sections of the training program. In the detailed sections, we will include pictures of the location of the boards, LEDs associated with the board, and the function of each board. Detailed sections of the electronics we wish to cover are the computer system, the measurement block, the drawer control, the access control, the IO control, and then we will move on to the power supplies.

First let's go over a brief description of those systems. The computer system consists of an eight slot backplane, one 486 PC board, which may or may not have the VGA card incorporated within it. There is a hard drive and a floppy drive, one IO control board, and the four-port serial board. The computer system is located in the top back left side of the unit in a PC rack, which is easily accessible.

The measurement block consists of the measurement CPU, which is controlled by the four-port serial board Port 2 Com 3, and is located in the front of the unit behind the left door, the chronometry analog board, which is located under the measurement block on the right side, the A/D photometry board, which is located under the measurement block on the left side, the photometric control board, which is located in the optical module on the right side of the unit, and the temperature regulation board, which is located behind the Plexiglas door in the far back right side of the unit.

The drawer control consists of the positive identification board, which is controlled by the four-port serial board Port 3 Com 4, and is located in the front of the unit behind the left door. The bar code reader, two each display and detection boards for the sample and product drawer, located in the drawers which can be pulled off easily, control which consists of the four axis board, which is controlled by the four-port serial board Port 1, Com 2 and is located in the front of the unit behind the left door, the DC motor driver, which is controlled by again the four-port serial board Port 4 Com 5, and is located in the front of the unit behind the left door, several zero access boards, all of the boards in the pipetting head, Arm 1, Arm 2 for the transporting of the cuvettes, and the pipetter assembly.

The IO control consists of IO control card, which is located in the PC rack, left-hand side of the unit, the IO board, which is located in the front of the unit behind the left door. -- it contains the speaker -- all LED valves, door switches, and the Valcor pump, pretty much all components that are on/off, high/low.

In closing, I hope you've got a general understanding of the sections of the circuit boards which make this unit run. Also you should be able to see the general layout of the boards and their functions. Thank you for attending this session of the . . .