User`s manual

24
Defender 3 Online Emergency Lighting Inverter User’s Manual
#018-7150-03 Rev NR
6.1.5. Make sure the proper polarity is observed. DC bus voltage for a forty-four (44) battery
string should be between 528 and 598.4 Vdc and for a forty-five (45) battery string should
be between 540 and 612 Vdc as tested at the top of TB3: Battery Terminal Block (Refer to
System Component Layout).
6.1.6. When connecting batteries, you must connect the individual batteries into string (s). Please see
battery layout on the inside left door of your Battery Cabinet. Note: Layout illustrate the number of
batteries in a string, number of batteries per shelf, and their jumpers placements (i.e., negative of
first battery to positive of the second battery, negative of the second battery to positive of third bat-
tery, etc.). Cabinets’ intra-connects provided by others that are installing unit.
Each battery cabinet has two strings of batteries. Each string has a quantity of 44 or 45 of a 35AH
battery. The 35AH batteries are WP Series U1-35 SLA with T5 terminals (Data sheet attached).
The battery placement is 14 or 15 batteries per shelf depending on string length. When the string
is 44 (refer to Figure 9) two of the shelves will have one row of 7 and one row of 8 batteries ad the
last shelf will have two rows of
7 batteries connected. When
the string is 45 each shelf will
have one row of seven and a
second row of eight batteries.
The row of eight are placed
along the front using space cre-
ated by pocket area between
the cabinet shelf supports (refer
to Figure 10).
Figure 9
The first battery of each shelf is
placed inside right corner of the
shelf with the shortest dimen-
sion, the width, and positive
terminal against the back of the
cabinet. The first string of 44 or
45 are on the first three
shelves, and the second string
of 44 or 45 are on the bottom
three shelves. There are bat-
tery-to-battery jumpers and
shelf-to shelf battery jumpers
provided. The shelf-to-shelf
jumpers are standardized to
cover many power levels. The
battery-to-battery jumpers are the same gauge or smaller as the shelf-to-shelf battery jumpers.
Installation starts by connecting the positive shelf-to-shelf battery jumper (WARNING: Be careful
not to touch or ground yourself or tools to anything while installing jumpers!). As each battery is
placed install the battery to battery jumpers until all batteries are installed on the shelf. Finally con-
nect the negative shelf-to-shelf jumper to complete the battery shelf installation (Refer to Figure 10
for the individual shelf and a whole cabinet).
After creating each string of batteries, ensure that each string (Each string is either 44 or 45 batter-
ies total) consist of the number of batteries indicated by the battery layout and the measured volt-
age from the first to the last battery is within the voltage range stated above.