15
4.4 Analog Board ANL-T2
The analog board contains the DC power transistors that drive the
valves, heaters and pumps. It contains the sensor circuits that decode
the information from the temperature and pressure sensors before
passing that information on to the DIG-T2 board. All the systems
electronic components are connected through the ANL-T2 board. The
analog board is connected to the AC-T1 board that controls the AC
voltage devices. The power supply supplies 12 VDC and 5 VDC to the
analog board and the ANL-T2 distributes that power to the remaining
electronic components.
— JP1 & JP5 are connected to the two MPX2200 pressure sensors that
measure the chamber & jacket pressure.
— JP2 receives the digital input from the PT-100 temperature sensor
— JP8 is connected to the Power Supply and receives the 12VDC and
the 5VDC.
— JP6 provides a connection to the DIG-T2 board
— JP7 provides a connection for the Test Point board needed in
troubleshooting.
— JP9 provides control for the cooling fan
— JP10 connects the DC output drivers to the solenoid valves.
— JP11 is connected to the various digital inputs, such as the water
electrodes, door switch, float switches, etc.
— JP12 is directly connected to the SSR controlling the heaters. It
also provides a digital connection to the AC_T1F board, which
controls the water and vacuum pumps and the steam valve.
— JP13 is not applicable in the EHS Machine.
— JP14 is not applicable in the EHS Machine.
— JP15 is used to match the communication connector configuration
to either RS232 or RS485. The default is RS232 (see also DIG-T2
board):
1. RS232 – JP15, short pins 2 & 3, 4 & 5.
2. RS485 – JP15, short pins 1 & 2, 3 & 4.
— P2 provides a link to the serial port on the front of the unit, via a
ribbon cable.
To Next Page
Loading...
