User manual

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

RS232 Intellislot 1RS485

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

to 1.5mm

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

ENV

+12V

GND

BAT_OUT

12V

BAT_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