Appendix B – Power
asafeinstall_dgb, AutroSafe Interactive Fire Detection System, Release 4,
116-P-ASAFE-INSTALL/DGB, Doc-1004796-2, 2021-08-23, Autronica Fire and Security AS
Page 77
16.3 Description
BSF-400 is a power monitor and controller board providing a
communication interface, AutroFieldBus. The board has also the ability
to operate stand alone with no communication. The fault relay is
energized as standard with its own watchdog.
The power board provides power to AutroSafe, AutroSafe’s existing I/O
module stacks, battery monitoring and charging, plus 24 voltage
contacts for other external equipment.
• 2 x 24V outputs of 2A to AutroSafe panel
• 2 x 24V outputs of 2A to I/O stack
• 2 x 24V outputs of 2A to third-party equipment
• 1 input for battery
• 1 input for battery charger
• Communication
• Power control for battery
• Control signals for battery charger
• All internal voltage levels are monitored
• Temperature sensor for compensation of charger voltage
BSF-400 has short circuit protection on all outputs such that a short
circuit will not affect other outputs. Batteries that are connected will be
charged with temperature compensation to ensure long battery life
regardless of temperature (within the specified operating temperature
range).
All outputs on terminations A, B and C are specified to a maximum
current of 2A. There are no minimum power ratings for the outputs. The
maximum power that may be used from each output is 2A and there is
a current limiter implemented at 7A.
16.4 Power Block Diagram – Example
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