Vertiv™ NetSure™ IPE Series -48 VDC Outdoor Rectifier Installation and User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
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3.11
Battery Connections
3.11.1
General
Batteries are designed to be connected to the adjacent rectifier only, via the rectifier to “BAT” connector.
If more than one rec battery is required to be used, then a SYSTEM BOX shall be introduced into the wiring system. In this
case, a CAN wiring extension cable is used to cable between rectifiers. Also, the rectifier 2kW output shall be wired to the
SYSTEM BOX. Once wired in this manner, both the rectifiers and batteries can be considered in parallel. There is active load
sharing between rectifiers. There is no active load sharing (during discharge) among batteries in this parallel system with
SYSTEM BOX.
When two (2) or more batteries are connected in parallel, the battery protection is triggered for the unbalanced discharge current
between the pre-discharged batteries. When connecting in parallel, the following coefficients are required.
Table 3.7 Battery Parallel Connection
Battery Quantity in Parallel
Two (2) Batteries in Parallel
Three (3) Batteries in Parallel
≥ Four (4) Batteries in Parallel
Discharge Power Coefficient
0.7
0.7
0.7
For example: For two (2) batteries connected in parallel; the maximum discharge current of a single battery is 70 A, and the
maximum discharge current of the two (2) batteries connected in parallel is 70 A x 2 x 0.7 = 98 A.
3.11.2
Battery DB9 Pin Definition
Table 3.8 Battery DB9 Pin Definition
Pin
Signal Name
Description
1
RS485_2A
Communicate with rectifier by connecting
to DB-9 on rectifier.
2
RS485_2B
Communicate with rectifier by connecting
to DB-9 on rectifier.
3
/
/
4
/
/
5
/
/
6
/
/
7
/
/
8
RS485_2A
Communicate with rectifier by connecting
to DB-9 on rectifier.
9
RS485_2B
Communicate with rectifier by connecting
to DB-9 on rectifier.
