Installation Guide

Introduction
1–2 975-0400-01-01 Revision G
This manual is for use by qualified personnel only.
Features
The Conext MPPT Solar Charge Controller (solar charge controller) is a
photovoltaic (PV) charge controller that tracks the maximum power point of a PV
array to deliver the maximum available current for charging batteries. The solar
charge controller can be used with 12-, 24-, 36-, 48-, and 60-volt DC battery
systems.
The solar charge controller is designed to regulate PV source, but will also work
with other DC sources. To be used, the DC source must meet the specifications
listed on page A–2.
The solar charge controller can be installed (in single or multi-unit configurations)
with a Conext XW+ inverter/charger or as a stand-alone installation.
Standard features of the solar charge controller include:
• Two- or three-stage charging process, with manual equalization to maximize
system performance and maintain expected battery life.
• True dynamic 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 1–3.
• Integrated PV Ground Fault Protection (PV-GFP).
• Convection cooled (no internal fan) using aluminum die-cast chassis and
heat sink.
• 60-amp capacity.
• Configurable auxiliary output. See “Auxiliary Output Functions” on page 1–10.
• Two-line, 16-character liquid crystal display (LCD) with four buttons for
configuration and system monitoring.
• Input over-voltage and under-voltage protection, output over-current
protection, and backfeed (reverse current) protection. Warning and Fault
messages appear on the LCD when the unit shuts down as a protective
measure.
Figure 1-1 Conext MPPT Solar Charge Controller