Brochures and Data Sheets

2012.092
ACU+ Controller
EmersonNetworkPower.com/EnergySystems (North America)
EmersonNetworkPower.eu/EnergySystems (EMEA)
© Emerson Network Power Energy Systems North America 2012.
Business-Critical Continuity
™
, Emerson Network Power
™
, the Emerson Network Power logo, Emerson
®
and Consider it Solved are service marks and trademarks of Emerson Electric Co.
EnergyMaster
™
, eSure
™
, NetPerform
™
, NetReach
™
, NetSpan
™
, NetSure
®
and NetXtend
™
are trademarks of Emerson Network Power Energy Systems North America.
ENEC
TCP
RS232
DC POWER
HTTPSNMP
Net Management
Centre
IE
CAN I2C RS485
USB memory
stick
PSU PSU PSU
SM
DU
conv
IB1 or
IB2
EIB
SM
Modules
Large
DU
ACU+
MODEM
TCP/IP PSTN,GSM
Diagram
Network Operation Center
ABBREVIATIONS
PSTN Public Switched Telephone
Network, an ordinary
telephone line
IE Internet Explorer
ENEC EnergyMaster
™
Emerson Network
Energy Center, multi-platform,
multi-user, distributed multi-
language web environment for
monitoring of Emerson Network
Power DC, HPAC and UPS
equipment
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
Ordering Information
Model Part Number / Description
M820B 1M820BAXX / ACU+ controller
M821B 1M821BAXX / ACU+ controller
M820D 1M820DAXX / ACU+ controller
M821D 1M821DAXX / ACU+ controller
M820N 1M820NXX / ACU+ controller
Optional Interface Board
IB1 4 relay outputs, 4 digital inputs
IB2
8 relay outputs, 8 digital inputs,
2 temperatures
EIB
5 relay outputs, 8DC voltages,
3DC currents, 2 temperatures
Technical Specifications
General
Power Supply 19 to 60VDC
Power Consumption 5W
Operating Temperature Range - 40°C to + 75°C/- 40°F to + 167°F
Relative Humidity 0 to 90%
EMC EN 300 386, 2001 class B, FCC part 15 class B
Safety IEC 60950-1, EN 60950-1, UL 60950-1
Approvals CE, UL and NEBS level 3
Mechanical Data
Dimensions (H x W x D)
M820B and M821B: 42 x 86.6 x 211.5mm
1.65 x 3.41 x 8.33inch
M820D, M821D and M820N: 86.6 x 86.8 x 211.5mm
3.41 x 3.42 x 8.33inch
Standard Installation Methods Hot pluggable in stand-alone or embedded power plants
Weight < 1 kg / 2.2 Ibs
Inputs/Outputs
Model M820B M821B M820D M821D M820N
Display LCD with 8 x 16 characters LCD with 4 x 16 characters
Communication RS232, RS485, Ethernet, USB
RS232, 10/100M
ethernet, TCP/IP,
SNMP, web server
Protocol HTTP, SNMP, EEM, SocTpe, Rsoc
Inputs
Analog
2 battery
currents, 1 load
current, 1 bus
voltage, 2 battery
voltages,
3 temperatures,
3 AC voltages
2 battery
currents, 1 load
current, 1 bus
voltage, 2 battery
voltages, 2
temperatures
Refer to
M820B
Refer to
M821B
3 DC systen
voltages, 3 DC
system currents, 3
temperatures, 3
AC voltages
Digital
1 input for status
of SPD auxiliary
contacts, 10 load
fuses, 4 battery
fuses, bi-stable
contactor status
1 input for status
of SPD auxiliary
contacts
1 input for status
of SPD auxiliary
contacts
10 load fuses,
4 battery fuses
Outputs
2 LVD mono &
bistable
contactors
None
2 LVD mono &
bistable
contactors
Examples of Alarms
DC Power Plant Alarms
AC mains failure, Rectifier failure, DC/DC converter failure, High
voltage shutdown, Fan failure, Thermal derating (of rectifier
output due to high temperature)