Brusa BDC546, Technical Data And Start-Up

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Technical data
and start-up
BDC546
7.1.2 Pin 2 AUX
Internal wiring

If there is no voltage at the highside, the supply to the switching components that are responsible for the
voltages generated inside the device of 3.3 V and 5 V (µC, FPGA, …) is ensured via Pin 2 AUX. Then, it is
possible to communicate with the device by means of pin 16
EN = high , via CAN or RS232. For a highside
voltage of 150V or higher, the internal 15 V supply is activated and takes over the supply. This relieves the
wiring system. The pins 11
and 14 PFO_VC- are always supplied via pin 2 AUX . The following
functions are ensured in the case of exclusive supply from the wiring system (control connector):

CAN communication (sending and receiving)

Communication via RS232 (monitoring)

Microprocessor programming (firmware)

Pyrofuse control

Main contactor control
Voltage
Pin 2 AUX (V)
Pin 16 EN
(terminal 15)
RUN command
(sent via CAN)
HV voltage (V)
Type. Current draw at
Pin 2 AUX (mA)
12.0 0 0 0 0.641
14.0 0 0 0 0.731
12.0 1 0 0 272.3
14.0 1 0 0 247.0