biosystems A15 User Manual

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3. ELECTRONIC SYSTEM
1. Description of the electronics of the A15 analyzer.
2. CPU Board (CIIM00026)
3. Power supply board and source (SP150 & CIIM00015)
4. Needle Board (CIIM00017)
5. Photometry Board (CIIM00027)
6. XYZ carriage interconnection board (CIIM00018)
7. Rotor interconnection board (CIIM00029)
8. Fluid interconnection board (CIIM00028)
9. Communications Board (CIIM00036)
10. Components relation
11. Information about auxiliar connector
12. Interconnection between boards
13. Schematic liquid circuit
Description of the electronics of the A15 analyzer.
The electronics of the analyzer are made up of different boards located at different points in the analyzer and dedica-
ted to specic functions. Its different location corresponds to functionality and performance criteria for the functioning
of the analyzer.
There are 8 different boards, which correspond to:
CPU Board (CIIM00026)
Power supply board and source (SP150 & CIIM00015)
Needle Board (CIIM00017)
Photometry Board (CIIM00027)
XYZ carriage interconnection board (CIIM00018)
Rotor interconnection board (CIIM00029)
Fluid interconnection board (CIIM00028)
Communications Board (CIIM00036)
3.1 CPU Board (CIIM00026)
This is the brain of the machine, containing the microprocessor (H8/3003), responsible for controlling all the elements
of the machine. The board has different data storage systems using either static RAM (U1 and U47), FLASH memory
(U10) or EPROM (U9). The slot associated with the EPROM is used to check the functionality of the board and the
recording of the MONITOR program in the production phases of the analyzer. The other two memories are associated
with the normal functioning of the analyzer. The FLASH memory holds the application itself as well as different data-
bases related to factory settings, adjustments, state of the rotor and possible extensions to the application.
The U21 device also exists on the board. This is a logical programmable device (FPGA) dedicated to the control of
motors, mapped in register memory associated with end-of-run control, electrovalves, level sensing and control of the
photometry-associated board (CIIM00027).
The motor control acts directly on the drivers corresponding to each of the analyzer’s axes (U28,U29,U30,U24,U25,U27)
to act on the motor. The driver comprises the L6228 integrated circuit. The regulation of the current of each axis can
be congured by means of a DAC that sets the current set point independently (U26).
The action on the thermostatation systems of the rotor is carried out through H-shaped bridges based on MOS te-
chnology (U45) and controlled directly from the microprocessor. The action on the needle thermostatation system is
through the Q4 transistor.

biosystems A15 Specifications

General

Brand	biosystems
Model	A15
Category	Laboratory Equipment
Language	English