Conext XW PRO 6848 6,800W 48V Installation

Multi-Stage Charging Process
The charging cycle is a multi-stage process. Whenever qualified AC power is present at
the AC1 or AC2 input, power runs through to the connected load and begins charging the
batteries in parallel.
Figure 15 Three-Stage Battery Charging Cycle
Time
Time
Absorption Voltage
Max Absorb Time - Dflt 3 hrs
(adjustable 1 min - 8 hrs)
Boost
Timer
1hr fixed
2-Stage Charge
Custom Charge
Absorption Stage
Bulk Stage
(Boost Stage)
Recharge
Voltage
Battery
Voltage
Battery
Current
Max Charge
Rate
Return to
Bulk Stage
Absorption Exit Current
Threshold = 2% of
programmed AH capacity
NOTES:
n When the charge cycle is interrupted, the charger will restart charging at the beginning
of the multi-stage algorithm.
n Exit Current Threshold can be effectively disabled by programming the amp-hour
capacity to 0. In this case, absorption will only exit once the Max Absorption timer
expires.
n Charge current during equalize state (optional state not shown here) is normally
limited to 10% of the programmed amp-hour capacity setting. If this setting is
programmed to 0 Ah, the charge current during equalize is instead limited to whatever
is programmed for the maximum current limit of the unit (the default current limit in
equalize modeis 60A).
n Synchronized charge states are active when more than one charging device (Conext
XW Pro or Conext MPPT solar charge controller is connected in the system via the
Xanbus network.
n The first Conext XW Pro or Conext MPPT solar charge controller to enter bulk,
causes the other chargers to enter bulk.
n The first Conext XW Pro to enter absorption causes the other chargers to enter
absorption.
Configuration Conext XW Pro Owner's Guide
990-91227A-01 This document is intended for use by qualified personnel 65