Outback Power Systems FLEXmax Extreme Owners Manual - Manual (Page 7)

900-0150-01-00 Rev A 5
Introduction
Thank you for purchasing a FLEXmax Extreme Series Charge Controller. These charge controllers offer an
efficient, safe, multi-stage recharging process that prolongs battery life and assures peak performance from a
PV array.
Audience
This manual is intended for use by anyone required to install and operate this equipment. Be sure to review this
manual carefully to identify any potential safety risks before proceeding. Installers and operators must be
familiar with all the features and functions of this equipment before proceeding. Failure to install or use this
equipment as instructed in the manual can result in damage to the equipment that may not be covered under
the limited warranty. This product is only serviceable by qualified personnel.
IMPORTANT:
This manual provides safety guidelines and installation information for the FLEXmax
Extreme charge controller. It does not provide information about specific brands of PV
modules and supplies limited information on batteries.
Contact the supplier of the PV modules or batteries for additional information.
Features
The FLEXmax Extreme charge controller uses continuous Maximum Power Point Tracking (MPPT). This function
continuously seeks out the maximum power available from a PV array and harvests it. This power is used to
recharge the batteries. Without MPPT, the system can only harvest power at the level of the battery voltage.
See page 70 for a description of MPPT.
The FLEXmax Extreme has the following features:
 Designed for FLEXgrid™ operation as part of an OutBack Grid/Hybrid™ system
 Supports 12, 24, 36, 48, and 60 Vdc battery voltages
 Performs voltage step-down capability allowing the use of a higher-voltage PV array configuration
 Controls an equalization cycle manually or automatically
 Capable of delivering full current without derating in temperatures up to 45°C (113°F)
 Capable of full current without derating up to 55°C (131°F) when using optional fan kit
 Rain-proof enclosure
 Logs up to 128 days of operational data
 Field-upgradeable firmware
 Can be remotely monitored and configured (up to 300 feet or 100 meters away) using the optional MATE3
system display
 Can be remotely monitored and upgraded using the optional AXS Card product
Firmware
This manual covers FLEXmax Extreme firmware revision 001.xxx.000.