W-NXS AND CP-NXS
13
74-4059—01
USB to NXS-UPS
If installed with the NXS-UPS modules, connect a USB “A–B type” cable between the SITOP UPS and one of the
USB ports on the NXS (any one). In addition, you must set the DIP switches on the NXS-UPS to specific positions,
for operation with Niagara software. See
and
Figure 12
USB to NXS-UPS connections.
Table 2
DIP switch settings on SITOP UPS for use with NXS.
NXS-UPS DIP Switch
Default/Recommended Setting
Switch
Pos.
(0=Off)
1
0
Cut-in threshold is 22.5 volts.
2
0
3
1 (On)
4
0
End-of-charge voltage is 27.0 volts.
5
0
6
1 (On)
7
0
8
1 (On)
9
0
10
0
Charging current is 0.7A.
L+
M
L+
M
B+
B–
In
Out
Bat
L+
M
L+
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
1 0
SITOP UPS
NXS
USB A–B type Cable
See
for DIP
switch details.