I+ME ACTIA BMS Master 4, Hardware Manual, Page: 11 / 76

Hardware Manual
BMS Master 4 / 4.5
Ref.: IR14417 A 15.01.2018 Page 11/76
VBAT-
Master_SlaveCom.1
B
U
S
A
B
U
S
B
5
V
G
N
D
S
H
IE
L
D
S
H
IE
L
D
B
U
S
A
B
U
S
B
5
V
G
N
D
F
a
iln
1
F
a
iln
2
Cell connector
SLAVE n
1 2 3 4 5 6 7 8 9 10 11 12
Master_SlaveCom.4
Master_SlaveCom.2
Master_SlaveCom.3
Master_SlaveCom.5
VBAT+
4,7 kΩ … 5,1 kΩ
1 2 3 4 5 6 7 8 9 10 11 12
B
U
S
A
B
U
S
B
5
V
G
N
D
S
H
IE
L
D
S
H
IE
L
D
B
U
S
A
B
U
S
B
5
V
G
N
D
F
a
iln
1
F
a
iln
2
Cell connector
SLAVE n-1
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
B
U
S
A
B
U
S
B
5
V
G
N
D
S
H
IE
L
D
S
H
IE
L
D
B
U
S
A
B
U
S
B
5
V
G
N
D
F
a
iln
1
F
a
iln
2
Cell connector
SLAVE 1
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
e.g. LiYCY- TP 3x2 0,25mm²
Bus A & Bus B Twisted
5V & GND twisted
1
2
3
4
5
6
NTC2-
NTC1-
PTC+
temperature
control
NTC
NTC
1
2
3
4
5
6
NTC2-
NTC1-
PTC+
temperature
control
NTC
NTC
1
2
3
4
5
6
NTC2-
NTC1-
PTC+
temperature
control
NTC
NTC
 Communicating with external hardware via a high speed CAN interface
The Master module is supplied either by the controlled battery itself or it can be supplied by
an additional system battery, e.g. in mixed 12V/42V-systems.
System time and date are provided by a real time clock.
The Master supply voltage must not exceed 28 VDC.
2.3
S
CHEMATIC FOR
S
LAVE
C, S
LAVE
5
Example schematic diagram based on Slave C modules; for the Slave 5 modules the
picture is valid analogously. The Slave C, Slave 5 is on Master Connector CN106 (Slave
Comm) wired connected.
The slave module can be connected to 5 up to 10 cells and covers the following functions:
 Communicating with the Master module
 Measuring of the single cell voltages
 Compensation of different cell charge states
 Controlling of the mechanical integrity of one or more batteries
 Measuring of temperatures
 Signalling overvoltage and over temperature conditions