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Chapter 2 Battery Installation
18 Shield M10U user manual
resistant to sulfuric acid and disposed of in accordance with local regulations.

If electrolyte comes into contactor with the skin, the affected area should be washed immediately with water.
2.2 Battery Typologies
According to the requested configuration UPS may need batteries consisting of one or more strings of battery blocks
installed on shelves in a locked cabinet or dedicated battery room
Note
The Traditional external battery cabinet can make use of each even number of battery per string between 36 and
44.
The default factory setting, if the unit is ordered w/o internal battery is 40.
The cabinet is only for valve regulated maintenance-free lead-acid battery.
CAUTION: The lead acid battery may cause chemistry hazard
2.2.1 Traditional Battery Installation
Only the qualified engineers are allowed to install and maintain mounted in a traditional battery cabinet or shelf. To
ensure safety, install the external battery in a locked cabinet or dedicated battery room accessible just to service
qualified personnel.
Please note that number of cells set via software must be consistent with the actual number of cells.
A minimum space of 10mm must be reserved on all vertical sides of the battery block to permit free air movement around
the cells.
A certain clearance should be reserved between the top of the cells and the underside of the shelf above as this is
necessary for monitoring and servicing the cells.
When installing the batteries always work from the bottom shelf upwards to prevent raising the center of gravity.
Install the batteries reliably and avoid vibration and mechanical bumping.
The bending radius of cable should be more than 10D, where "D" is the outer diameter of cable.
When connecting the cable, do not cross the battery cables and do not bind the battery cables together. The battery
connection must be firm and reliable. After the connection, all the connections between the wiring terminals and the
batteries must be corrected to meet the torque requirement provided in the specifications and user manuals of the
battery manufacturers.
Each battery terminal should be insulated after its connection has been made.
Check if the battery is unexpectedly grounded. If the battery is unexpectedly grounded, remove the earth power supply.
Contactoring any part of the grounded earth may be subject to electric shock.
Measure the battery voltage and carry out battery voltage calibration after the UPS is started.
Diagram of batteries connection is shown as below:
1 2 20 21 39 40
Bat+ N Bat-
Fig.2- 1: Diagram of Batteries Connection
Warning: Battery connections
When using a traditional battery solution, always comply with the following precautions:

Disconnect the charging power before connecting or disconnecting the cable of the battery terminals.

Do not connect the cables between the UPS battery terminals and the batteries before getting the approval
from the commissioning engineer.
警告 危 险
警告 危 险