Chapter 6 Operating Instructions
34
MUST400_User manual_EN_REV02 User Manual
Chapter 4 Installation Drawing
Rack Modular
UPS system
To User Safety
Ground
In
p
u
t
O
u
tp
u
t
Connect to
Critical Load
Main Supply
B
y
p
as
s(
O
p
ti
o
n
)
Bypass
Supply
Power Cables
E
x
te
rn
al
B
at
t.
+
N
-
To External Battery
Connection
D
ry
C
o
n
ta
ct
B
o
a
rd
G
J
SNMP
SNMP Card
RS232
RS485
J2
J3
J4
J5
J6
J7
J8
J9
J10
Batt.
Temperature
ENV.
Temperature
EPO
GEN
BCB
Batt. Low
Alarm
General
Alarm
Utility
Fail
Fig.4- 1: Wiring Diagram
BCB
UV
Batt. +
Batt. N
Batt. -
Rack Modular UPS
B
C
B
_
D
R
V
B
C
B
_
C
O
N
T
J6
J7
B
C
B
_
O
N
L
+24V
+24V
+24V
24VDC
Auxiliary
Contactor
BCB DRV
BCB STATUS
GND
Fig.4- 2: External Battery Connection
