SECTION 2 - SERVICE PROCEDURE
31215460
2-5
48V Systems with 2nd Generation BMS
The 2nd Generation BMS can be arranged with one or two
electronic cards. The 48V 2nd Generation BMS manages all
the functions as described in the 1st Generation BMS.
72V/83V with 2nd Generation BMS
The 72V and 83V BMS is composed of two electronic cards,
positioned one above the other in the same case, BMS A
on top and BMS B on bottom side. Each electronic card
can manage maximum 16 cells. Both cards have the same
functions but manage a defined group of cells. BMS Mas-
ter and Slave are identified with letters M and S stamped
on side case as shown below.
Table 2-2. Internal Connector Identification
on BMS module
J1
Temperature Input 1
J2
Temperature Input 2
J3
Temperature Input 3
J6
Voltage Input
J7
Internal Contactor and Fans
J8
LEM Sensor
J9
Power Supply
J10
CAN BUS
MAF11450
Figure 2-1. 48 Volt BMS
MAF11460
Figure 2-2. Single Electronic Card
MAF11470
Figure 2-3. BMS A (Card Upper)
MAF11480
Figure 2-4. BMS B (Card Lower)
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