Datasheet

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Function Specification
Function Diagram:
1. General Description
The TSP-BCMU360 module extends any 24VDC or 48VDC power supply to a DC-USV (uninterruptable DC Power supply). This module
is a standalone unit and is designed to function with the Traco TSP series; however it can be used in conjunction with any fully stabi-
lized 24V or 48V DC power supply output. The set voltage is configured through the means of a jumper on the unit with two selecta-
ble DC voltage levels, 24V or 48V. No other signals are required between the TSP-BCMU360 and the connected power supplies for
correct operation of the module. In the event of power fail from the connected power supply, the energy required by the load will be
supplied continuously and without interruption from an external 12V lead acid battery. The module also offers the unique feature of
redundant inputs as well as the battery backup. Redundancy is achieved by two internal decoupling diodes which allow operation with
two independent voltage sources in order to increase the reliability of the output even further.
2. Operation
2.1. Battery Backup for USV Operation
The TSP-BCMU360 module extends any 24VDC or 48VDC power supply to a DC-USV (uninterruptable DC Power supply), this is achie-
ved by the connecting a 12V lead-acid battery to the BATT_IN connector of the unit. During normal operation, the connected power
supply provides energy to load with a voltage level of Vin –0.5V (typical, 0.5V loss due to internal decoupling diodes) as well as char-
ging the connected battery. If the connected supply fails, the battery is then connected to the load (buffer mode), a step up converter is
used to maintain the selected output voltage level, Vnom - 6% (typical).
2.2. Dual Inputs for Redundancy
The module provides two inputs to connect two power supplies to facilitate a redundant system. If one of the two connected sources
fails then the second supply will provide energy to load maintaining the desired operation of the unit. The unit is designed to function
with the TRACO POWER TSP series, but due to its standalone nature it can be used with any type of fully stabilized 24V or 48V power
supply.
2.3. Output Voltage Level and Efficiency
The TSP-BCMU360 module functions with both 24VDC (15A) and 48VDC (7.5A) supplies. The desired voltage is selectable by means of
a jumper located on the side of the unit. It also offers very high efficiencies with up to 96% and 98% efficiency in normal mode for 24V
and 48V modes respectively. In the buffer mode efficiencies are as high as 92% and 89% for 24V and 48V modes respectively.
Battery Controller Module
TSP-BCMU360 Series 360 Watt