Advanced Control Unit (ACU+) Controller, ACU+ M820B, M821B, M820D, M821D Features and Benefits Flexible and scalable to satisfy your present and future needs - by configurable IB (interface boards) Easily configurable file upload/ download minimized installation time Long battery life-span – sophisticated boost charge management Unattended battery test –advanced scheduled test/constant test/fast test High quality failure information - due to intelligent alarm setup through using PLC Lower Operating Cost – energy-saving standby function for rectifier 1 DC Power for Business-Critical Continuity™ Description The Advanced Control Unit Plus (ACU+) is a powerful controller unit used in DC power applications. It can provide remote monitoring of the telecom site's AC mains supply, DC power plant, battery backup, diesel generator and site environment etc. Featuring advanced battery management such as sophisticated boost charge control, remaining time and capacity prediction, constant current test, scheduled test and short test, and Battery Low Voltage Disconnection (BLVD), the ACU+ realizes easy and predictive battery maintenance. Further more, with basic energy saving and power split function, the ACU+ is surely a highly costefficient product. The information and alarms, from a specific site, can be monitored or checked by means of a simple web browser or special monitoring software. When using a web browser no additional software is needed and the web browser login to monitor the site is password protected. Designed for global use, the ACU+ withstands high telecom standards, and provides great reliability and availability. PLC = Programmable Logic Controller M820B M821B M820D M821D Advanced Control Unit (ACU+) Technical Specifications, ACU+ General Power Supply Power Consumption Operating Temperature Range Relative Humidity EMC Safety Approvals Net Management Centre 19 to 60VDC 5W - 40°C to + 75°C/- 40°F to + 167°F 0 to 90% EN 300 386, 2001 class B, FCC part 15 class B IEC 60950-1, EN 60950-1, UL 60950-1 CE, UL and NEBS level 3 ENEC PSEM IE SNMP HTTP TCP PSTN,GSM TCP/IP MODEM RS232 DC POWER ACU+ Mechanical Data Dimensions(H×W×D) Standard Installation Methods Weight 42×86.6×211.5mm /1.65×3.41×8.33inch (M820B and M821B) 86.6×86.8×211.5mm /3.41×3.42×8.33inch (M820D and M821D) Hot pluggable in stand-alone or embedded power plants < 1 kg / 2.2 Ibs CAN PSU PSU PSU USB memory stick I2C SM DU converter IB1 or IB2 RS485 EIB SM Modules Large DU Inputs/Outputs Display Communication Protocol Inputs Analog Digital Outputs Examples of Alarms DC Power Plant Alarms Ordering Information Description Controller (ACU+) Optional Interface Board IB1 IB2 EIB M820B M821B M820D M821D LCD with 8 ×16 characters LCD with 4 ×16 characters RS232, RS485, Ethernet, USB HTTP, SNMP，EEM, SocTpe, Rsoc 2 battery currents, 2 battery currents, 1 load current, 1 load current, 1 bus voltage, 2 1 bus voltage, 2 battery voltages, 3 battery voltages, 2 temperatures, 3 AC temperatures voltages 1 input for status Refer to M820B Refer to M821B of SPD auxiliary contacts, 10 load 1 input for status of fuses, 4 battery fuses, SPD auxiliary contacts 2 bi-stable contactor status 2 LVD mono & None bistable contactors AC mains failure, Rectifier failure, DC/DC converter failure, High voltage shutdown, Fan failure, Thermal derating (of rectifier output due to high temperature) Product Name M820B M821B M820D M821D ABBREVIATIONS PSTN Public Switched Telephone Network, an ordinary telephone line IE Internet Explorer ENEC EnergyMaster™ Emerson Network Energy Center, multi-platform, multiuser, distributed multi-language web environment for monitoring of Emerson Network Power DC, HPAC and UPS equipment PSEM Power Supply and Environment Monitoring system PSU Power Supply Unit (AC/DC converter/ rectifier) SM DU Supervision Module for additional alarms in extension cabinets EIB Extension Interface Board IB Interface Board Product Code 1M820BAXX 1M821BAXX 1M820DAXX 1M821DAXX 4 Relay Outputs, 4 Digital Inputs 8 Relay Outputs, 8 Digital Inputs, 2 Temperatures 5 Relay Outputs, 8DC Voltages, 3DC Currents, 2 Temperatures Emerson Network Power. The global leader in enabling Business-Critical Continuity™. www.emersonnetworkpower.com www.emersonnetworkpower.com/energysystems www.DCpowerefficiency.com AC Power Embedded Power Precision Cooling Connectivity Infrastructure Management & Monitoring Racks & Integrated Cabinets DC Power Outside Plant Services Embedded Computing Power Switching & Controls Surge Protection Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2010 Emerson Electric Co. Emerson Network Power reserves the right to alter without notice the specification, design or conditions of supply of any product or service. 2010.3