Accessories Data Sheet Backplanes BPD, BPF for T Series Features 19 / 3U Rack-Systems Easy configuration of telecom rectifiers, battery chargers and power bus systems Provides controller function 1.6 kW maximum power Single or triple phase connection Redundant configuration possible matter of interlinking the DC output rails and signal outputs of Description two or more racks. The back plane types BPF1000 and BPD1000 have been The back planes are available in 2 basic versions: designed for fast and simple set-up of 19 rack mounted power supply systems powered by AC-DC converters of the T BPD1000: A front-end version, fitted with decoupling di- series. Battery charger systems, telecom rectifiers and odes in each positive line to the DC bus, for systems modular power bus systems can easily be configured with with 2 or more T units in parallel or n+1 redundancy. n+1 redundancy if required. Three T Series converters can be BPF1000: A battery charger version, in which each out- plugged into one back plane providing up to 1.6 kW output put is fitted with a fuse in the positive line to the DC bus, power. for battery charging or rectifier systems with two or Since for such applications the status of the power bus is of more T units in parallel or n+1 redundancy. importance rather than the output status of a single AC-DC converter, T units with option D should be chosen enabling re- For minimum electromagnetic emission at the input, both the mote bus voltage sensing. BPD and the BPF versions are fitted with input filters. Should project specific requirements demand enhanced hold-up The back plane concept allows system assembly in next to no time or lower output ripple (low frequency ripple) than time. When fitted in the rack all input and output terminals are specified for the individual AC-DC converters, both basic back readily accessible from the rear. The AC input is designed for plane versions are available with additional output capacitors. single or 3-phase operation. The monitoring signals and the control signal inputs and outputs are available from a screw Important: The neccessity to provide a cover over the live terminal strip. System specific signal combination is possible parts at the mains input (High Voltage) or over the DC bus bars with different jumper settings. The back plane fulfills in this (Energy Danger), preventing accidental contact during instal- way the function of a controller unit. lation, start-up of a system or maintenance, depends on the final installation as well as on the applicable safety require- The layout of the back plane and the hot plug-in capability of ments. However, it is the responsibility of the installer or user the AC-DC converters allow system expansion under load to provide such a safety cover to assure the compliance with the relevant and applicable safety standards. (e.g. from 550 W up to 1.6 kW) by simply inserting further T units into the rack. Larger system power extension is just a Table of Contents Page Page Description ...................................................................... 1 Electromagnetic Compatibility (EMC) ............................. 7 Functional Description....................................................2 System Integration .......................................................... 8 Model Selection ............................................................... 2 Mechanical Data............................................................ 10 Mains Input Section ......................................................... 4 Safety and Installation Instructions ............................... 11 Output Section ................................................................. 5 Copyright 2015, Bel Power Solutions Inc. All rights reserved. MELCHER BCD.00617 Rev AB, 16-Nov-2015 The Power Partners. Page 1 of 15Accessories Data Sheet Backplanes BPD, BPF for T Series Model Selection Table 1: Type survey 1 AC Input Input filters Output capacitors Preload Application 85...255 VAC (reduced 100 Hz 2 1 or 3 phase (Y) output ripple) BPD1002 x Front-end, fitted with diodes BPD1003 x 90 mF BPF1004x x Battery charger, fitted with fuses BPF1007x 50 mF x BPF1006x 90 mF x 19 Rack, 3 U Rack for systems with up to 3 T units 1 See also: Electromagnetic Compatibility. 2 Please refer to: Dimensioning Example of a Battery Charger System in Single Phase Connection 3 Only for LT units and 120/208 VAC. See fig.: Mains input arrangement. Functional Description The back plane is divided into 3 sections, each one fitted with an H15 female connector for one T unit, with the mains input section and the DC output section separated from each other. The layout of the standard back planes gives the user the flexibility to operate the system either in single phase or in 3-phase (Y) configuration. Connection to the mains is achieved via the 6-pole connector (X1). With the wire jumpers B10/20/30 in Y-position (standard configuration) each T unit is connected between its defined input line and the neutral. (Changing of the configuration by the customer is not recommended.) An input filter, provided in the supply line to each T unit minimizes the conducted noise at the input of the system. The positive output of each T unit is separately fed to the common power bus and is decoupled depending upon the back plane type, either by a fuse (F11/21/31) or by a decoupling diode (D11/21/31). The fuses (cartridge type) are externally accessible from the frontside. The BPF versions are fitted with a common preload (R25). Additional output capacitors (up to 3 per output,10 mF each) further reduce the low frequency output ripple and provide enhanced hold-up time. All relevant monitoring signals as well as control signal inputs and outputs are accessible at the signal terminal strip (X5). The jumper strip (X3) allows system specific signals accord- ing to different jumper settings. An auxilliary circuit (protected by a fuse F1, rated T1A, 250 V, 5 20 mm) allows a relay to be directly driven for system specific control functions. Each Tunit provides an individually adjustable power down signal enabling bus status monitoring at different voltage levels. The threshold values can be set at the soldering tabs D (R13/14, R23/24 and R33/34). set Note: If a power system is operated with 3 T units per back- plane, connection to the mains in a 3-phase configuration (Y or D) will provide equal load distribution on the input lines. Fur- thermore the low frequency ripple at the output of the T units is compensated to zero as long as all 3 T units are in operation. MELCHER BCD.00617 Rev AB, 16-Nov-2015 The Power Partners. Page 2 of 15