STA Compact Power Supply Intro

A brief introduction to the STA Compact power supply.

Transcription of STA Compact Power Supply Intro

Welcome back to BioMed Buddy. Today we're going to talk about the distribution of the power supplies. This is simply the introduction to the power supplies needed to run the SG8 Compact. Let's go through the main components. Power on switch, on the left-hand side of the instrument. That goes through a filter through the two main fuses, to the transformer, which gives you several inputs depending on what power you're running.

In the United States, of course we use 115, 120, same thing. From the transformer, puts out three separate types of power. Those three are 220, 28, and 20. The 220 goes to the fans, the vacuum pump, and the switching power supply. The 28 volts goes out to the 4-axis board to supply power to the stepper motors, to the temperature regulation board, for the product drawer stirring motors, and for the cooling pump. The 20 volts goes to the rectifier, from there it goes to the fuse board, from the fuse board you get 4 separate groups of power supply all being 26 volts DC.

These 4 groups are distributed to the motherboard and we will go through those at a later time. The fuse board, located on the bottom left-hand side of the instrument, has fuses F1 for the fans; F2 for the vacuum pump; F3 for the switching power supply; F4 for the stepper motors, stirring motors, cooling liquid pumps; F5 for the drum motors and product tooling; F6 for the valcore pumps and electrovalves. F7 is for the tubes, Z3 heating, and measurement block and DC motors. F8 is for the photo-metric lamp. See the connectors here? Connectors come from the transformer, go to the fans, go to the vacuum pumps, go to the motherboard, one becomes in here for the transformer.

On the fuse board you have an opto-coupler, which turns on and off the vacuum pump. Main purpose of the fuse board is of course to protect the other components in the SG8 Compact by the uses of fuses. On the front of the instrument you will see supporting diodes which tell you that all your power supplies are okay. The fuse board also brings in from the switching power supply. Monitors 5+12 and -12. Switching power supply voltages. It is important that the power supply, specifically the 5 volts DC be at 5.2 volts. On the motherboard, on the right-hand side of the motherboard, right at the edge of the instrument, you'll find test points to take measurement of the power supply going to the instrument.

Again, it is important that the power supply be 5.2 for the 5 volts line. Also notice that the switching power supply provides power to your PC rack, meaning it runs your computer system in the SG8 Compact. The color of these lines I took from an SG8 Compact, so they should be correct. I guess that is it for the overview of the incoming power to the SG8 Compact. Thank you very much for attending this session with BioMed Buddy.