Technalogix TAUD-100, Руководство по эксплуатации

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Technalogix Ltd Adrenaline Control System
VI-22
DC Distribution Module
REV 1.01 (ASY 085)
The DC Distribution module takes DC from the system’s power supply, splits it up for drivers,
finals, and fans, and monitors the current draw of the individual loads for protection, as seen in
the following block diagram:
DC is fed into the module via connectors J313 and J314 for the drivers and fans and J315
through J322 for the finals. The DC currents are then monitored for both display and protection
purposes. U308, U310, U312, U314, U316, U318, and U322 convert voltage drops across
current shunts for display purposes (sent to Display Interface), while U307, U309, U311, U313,
U315, and U317 handle high speed protection duties. The shutdown interface circuit takes
internal current faults and external inputs and processes them through an OR/NOR gate before
the shutdown signal heads off board. The DC current measurements that are to be used for
display purposes are also filtered via op amps U301 through U306, and U323. DC voltage is
monitored through U324.
Microcontroller U325 handles the interface between the Display Interface and the DC
Distribution and also converts the DC currents into a format suitable for sending through CAN to
the Display Interface. U321 handles the actual CAN bus data transfer.
The same DC that feeds the drivers and fans also powers the on board regulator (U326) that
generates the +5V. The green LED D302 provides visual indication that the 5V is present and
fuse F301 is good. Two yellow LEDs, D303 and D304, provide visual indication that the DC
supply inputs are present for both the drivers/fans and finals, respectively. A flashing D301
(orange LED) indicates that the software is running.