Installation Guide

Operating Below the PV Array Voltage Full Power Range
When the charge controller is used on a 48 V battery bank and a PV array where the MPP
is below 230 V, full output power is not assured. The figures below show the maximum
output current and maximum output power that can be produced when the charge
controller is operating below 230 V. The actual amount of current and power that your
charge controller can produce below 230 V will depend on the actual battery voltage and
the amount of solar power available from your panels. Full output current is available on
24 V battery systems across the entire input voltage operating range.
Conext MPPT 80 600
Figure 18Maximum Expected Output Current Versus Input Voltage, Conext MPPT 80
600
0
20
40
60
80
100
120
190 200 210 220 230 240 250
Current Adc
PV Array Voltage Vdc
Battery Voltage = 54 V
Battery Voltage = 58 V
Battery Voltage = 64 V
Conext MPPT 100 600
Figure 19Maximum Expected Output Current Versus Input Voltage, Conext MPPT 100
600
0
20
40
60
80
100
120
190 200 210 220 230 240 250
Current Adc
PV Array Voltage Vdc
Battery Voltage = 54 V
Battery Voltage = 58 V
Battery Voltage = 64 V
Conext MPPT 80 and MPPT 100 Installation Guide Specifications
59 This document is for use by qualified personnel 990-91319