Owner's Guide

Features
The Conext MPPT 80 and Conext MPPT 100 Solar Charge Controller (charge controller),
tracks the maximum power point of a PV array to deliver the maximum available current
for optimum charging of batteries. The charge controller can be used with 24 VDC and 48
VDC battery systems only.
The charge controller is designed to regulate the available power from a PV source only.
It is not designed to regulate power from other types of power sources.
The charge controller can be installed with a Conext SWInverter, Conext XW+ or
Conext XW Pro Inverter/Charger, or as a stand alone battery charger. For PV rapid
shutdown and arc fault detection functions, the charge controller can be installed with the
MPPT Disconnect RS. To configure the charge controller, a Conext System Control
Panel (SCP) or Conext Gateway (Gateway) is also required (see Accessories on page 70
for product part numbers). While both the SCP and Conext Gateway provide status
information and configuration capabilities, the Conext Gateway provides additional
access to configuration settings through a web interface.
Standard features of the charge controller include:
n Two or three-stage charging process, with manual equalization to maximize system
performance and maintain expected battery life.
n Maximum Power Point Tracking (MPPT) to deliver the maximum available power
from a PV array to a bank of batteries. See Maximum Power Point Tracking on page
22.
n Integrated PV Ground Fault Protection (PV GFP).
n Fan-cooled with speed control based on internal (heat sink) temperature.
n 80/100 amp charging current capability (Conext MPPT 80 600/Conext MPPT 100
600).
n Configurable auxiliary output. See Auxiliary Output Functions on page 27.
n Three LEDs for displaying operating status (Charging, Equalize, and Event).
n Input over-voltage protection, output over-voltage protection, output under-voltage
protection, and output over-current protection. Warnings, errors, and faults are
indicated by the red LED. View the associated warning or error message on the SCP
or Conext Gateway.
n Xanbus communications network. Xanbus is a network protocol developed by the
manufacturer which allows the charge controller to communicate settings and activity
to other Xanbus-enabled devices.
n Over-temperature protection and power derating of output power when ambient
temperature is high.
n Battery Temperature Sensor (BTS) to provide automatic temperature-compensated
voltage setpoints for battery charging. If the BTS is lost or damaged, you can order a
replacement from the manufacturer (Part Number 808-0232-02).
Conext MPPT 80 and Conext MPPT 100 Owner’s Guide Introduction
21 This document is for use by qualified personnel 990-6214B