Emerson NetSure 721NPBB - Page 48

NetSure
™
-48V DC Power System
User Instructions, UM582127000 (Issue AD, January 20, 2014)
Spec. No: 582127000 Code: UM582127000
Model No: 721NPBB Issue AD, January 20, 2014
[40]
Figure 25. Optional LVD Driver Circuit Card Connector Locations
J1
, J2
, J3
T
o LVL
D c
o
ntac
tor, uses ACU+
LVD1 contr
ol s
ett
ing
(Le
ve
l 1
).
J4, J5,
J6
To
LVL
D c
ont
actor, use
s ACU+
LVD2
contro
l sett
ing (
Level 2
).
J7
T
o LVBD c
ont
actor, us
es ACU+
LVD2
control s
etting (
Lev
el 2).
Note
s:
1. Connects up
to (4
) LVLD
and (
1) LVB
D contactors.
2. Sw
itch and indica
tor lo
cated
on ci
rcuit card in
stalled in
Main Bay onl
y.
J
6
J
5
J4
J3 J2
J
1
J7
S1
DO N
OT change a Low V
olt
age
Lo
ad Di
sco
nne
c
t c
ont
actor to
L
VD
Con
trol Le
vel 2 (L
VD2) if
t
he system is
fu
rn
is
hed
wit
h a
Low V
ol
ta
ge B
att
ery Di
sconne
ct
co
ntacto
r.