Battery Temperature Sensor (Option); Battery Ground Fault Detector (Option) - Emerson Liebert NX300 Series User Manual

250-800kva
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68
Chapter 6 Battery
PE
Note 1: Current leakage protective device
is optional. The positive, negative and
neutral battery cables should be routed
through the sensor, but the earth cable
should not be routed through the sensor.
Note 2: The communication cable W811
of battery temperature sensor can only be
connected to the J32 port of control
module of bypass cabinet, the ports J31,
J30 and J29 are invalid to temperature
detection.

6.10 Battery Temperature Sensor (Option)

Emerson provides an optional battery temperature sensor. Conect the battery temperature sensor as shown in
Figure 6-5.

6.11 Battery Ground Fault Detector (Option)

Emerson provides an optional battery ground fault detector. It includes a current transformer and a PCB, which
should be installed in the BCB box. The installation position of the PCB is shown in Figure 6-4. If the BCB box uses
top cable entry, the current transformer should be installed on the inside of the top plate of the BCB box, as shown in
Figure 6-4; if the BCB box uses bottom cable entry, the current transformer should be installed on the inside of the
bottom plate of the BCB box. Connect the PCB as shown in Figure 6-5.
If a battery ground fault detector is installed, the positive, negative and neutral battery cables from the battery into the BCB box
must be routed through the hole of the current transformer of the battery ground fault detector, while other cables must bypass the
current transformer.
NX UPS Single Module And Parallel System 250kVA ~ 800kVA User Manual
N
+
-
W809
W810
W801
IN-
IN-N
W809
W810
1
2
3
4
Battery temperature sensor (0 ~ 4 pcs)
Figure 6-5 Connection diagram of BCB box
J2
W802
PCB of battery ground
fault detector (M5 board)
J1
J1
W802
J2
PCB of battery ground
J4
J7
fault detector (C15 board)
J3
W813
J5
J6
X101
X101
C2 board
C2 board
X107
W811
X107 X100
X100
X102
X108
X108
X102
X106
X106
X104
X104
X105
X103
X103
X105
Note
Connect to ports J32, J31, J30
and 29 of control module of
bypass cabinet as illustrated
X8:J32
W812
X812
X8:J15
Connect to ports J15, J19, J20
and 21 of control module of
bypass cabinet as illustrated

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