Product sheet download - ME ACTIA GmbH

Battery Management System
BMS Slave
Electronic components from I+ME ACTIA
GmbH and battery technology based on
lithium-ion technology establish a symbiosis
from longstanding know-how in
development of electronic systems and the
latest state-of-the-art battery technology.
Since 1995, I+ME ACTIA has been working in
development of battery management
systems.
In combination with a BMS Master, these
modules are used in large systems with up to
255 cells.
The Slave module as a part of the battery
management system is a specifically
developed and microprocessor controlled
module for measuring and monitoring of 5 to
10 cells on a lithium-ion basis with any
capacity per module.
The Slave modules perform voltage and
temperature measurements of individual cells
and control the voltage balancing of the cells.
Cell overvoltages and cell overtemperatures
are further hardware monitored. Data and
error states are communicated with the
Master module by using an electrically
isolated interface.
The Slave module provides 10 differential
analogue inputs for capturing of the
measured cell voltages and 3 analogue inputs
for measuring of temperatures.

Technical data
Power supply and environmental data
Power supply voltage at min.
Current consumtion
Environmental temperature
Number of monitored cells
Value
< 30 µA
-20° ... +70° C
Remark
from 3 cells
in sleep mode, processor disabled
with active measurement and communication
Measurement of individual cell voltage
Voltage measurement range
Tolerance
1 ... 4,5 V
resolution of 12 bits
Temperature measurement
NTC resistor @ 25° C
10 k
resolution of 12 bits, -40° ... +100° C
Cell voltage balancing
Balancing current
typ. 85 mA
with 4 V cell voltage
Hardware monitoring of overvoltage
Limit
if longer than 1 second present at any cell
Hardware monitoring of cell overtemperature
Limit
Master interface
Insulation clearence
Insulation classification
Block diagramm
70° ... 85° C depending on which sensor type is used
air and creepage distance
According to DIN 60664-1 and the degree of pollution 2 up to 650 V
When using insulated locating screws up to 1000 V
Individual cell connections
Overvoltage
recognition
Multiplexer,
voltage &
temp. measurement
Cell voltage
balancing
Power supply
Interface for
temperatur
sensors
Microcontroller
Long term timer
Ext. memory
Configuration
Isolated
interface for
error
recognition
Isolated RS485
interface for
BMS Master
Contact
I+ME ACTIA GmbH
Dresdenstr. 17/18
D-38124 Braunschweig
Germany
Tel.: + 49 (0) 531 38 701 0
Fax: + 49 (0) 531 38 701 88
info@ime-actia.de
www.ime-actia.de
All data included in this document is intended to be purely used as product information and does not represent or imply any liability with
respect to accuracy and completeness of any data contained herein. Content is subject to technical modification without prior notice. All rights
reserved,© 2011 I+ME ACTIA GmbH IR12530B.