12 Chapter 1 Installation Of UPS Module
NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual
1.7 Control Cables And Communication
As shown in Figure 1-7, the bypass module provides dry contact ports (J5 ~ J10), service and communication ports
(RS485 port, RS232 port and three Intellislot (Network Interface/Relay ports) on the front panel.
J8
J5
J10 J7
J6
J9
1
2
RS232
Intellislot 1
RS485
Intellislot 2
Intellislot 3
Figure 1-7 Dry contact ports and communication ports
The UPS accepts external signalling from voltage-free (dry) contacts connected to push-in input dry contact terminal.
Subject to prior software programming, the signalling is accepted by the UPS when relevant terminals and the +12V
terminals are shorted. All control cables must be routed separately from the power cables and parallel cables,
double-insulated and of a typical 0.5mm
2
to 1.5mm
2
CSA for maximum runs between 20m and 30m respectively.
1.7.1 Input Dry Contact Port: Battery Environment (ventilation), Ground fault, Temperature
The input dry contact ports J7 and J8 provide environmental and battery ground and temperature fault contacts. The
ports are shown in Figure 1-8 and described in Table 1-2.
12
V
BtG
EN
V
J7
+1
2V
J8
GN
D
BA
T_
O
U
T
12V
BA
T_
IN
Figure 1-8 Input dry contact ports J7 and J8
Table 1-2 Description of input dry contact ports J7 and J8
Position Name
Description
J7.1
ENV*
Battery room environment detection (normally closed)
J7.2 BtG
Battery
ground
fault
J74
+12V
+12V power
J8.1
BAT_IN
Internal battery temperature detection
J8.2
+12V
+12V power
J8.3
BAT_OUT
External battery temperature detection
J8.4
GND
Power ground
Note*: Activating this feature turns off the battery charger
J2
J3
J4
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