Owner's manual

Galaxy Pulsar Edge Power System Controller

Issue 3 October 2011 120

7 NE872A Remote Distribution

Monitor and Control Module

Overview

Although the Pulsar Edge has the ability to directly control and manage a single LVD contactor

with additional hardware. It can manage additional LVDs and distributions through the use of

remote distribution monitor and control modules like the NE872. The NE872A (CC109124780)

allows the Pulsar Edge controller to manage various distributions through serial communications

in rectifier and converter based systems. The system controller will communicate over the GP

RS485 bus to the NE872A and monitor associated alarms for open load or battery protectors,

measure a single shunt configured as a load or battery shunt, monitor the DC bus voltage for

back-up LVD functionality, and control and monitor a single load or battery latching LVD

contactor. The board allows addressing for up to eight NE872As being installed in a system.

Figure 8-1 shows the connections and interfaces for the NE872A.

Figure 7-1: NE872A Remote Distribution Module

Features

The NE872A module has the following features:

• Status LED: Tri-colored LED that illuminates according to following conditions:

J11

J13

J12

J101

TB1

J100