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900-0134-01-00 Rev D.vsd\QSG\2014-07-21

©2012 OutBack Power Technologies.  All Rights Reserved.

  

In    23.2 V     0.0 A
Out   27.6 V     0.0 A

0.000 kW    0.0 kWH

AUX:   OFF     Sleeping

 

Charger  Aux   Light 

  EQ    Misc  Advanced 
  Logging    Stats 

EXIT   

   

  GO

LCD Screen

Main Menu

Soft Key 

Buttons

Soft Key 

Commands

<EXIT>, 

<GO> etc.

Navigation:

1

2

Advances to the 
End-of-Day Screens

Advances to the 
Main Menu Screens

IN   23.2 V     0.0 A
OUT  27.6 V     0.0 A

0.000 kW   0.0 kWH

AUX: OFF       Sleeping

Status Screen

OutBack              24V

Power

Systems

Charge Controller

Startup Screen

NOTE:  

See the 

FLEXmax Series Owner’s Manual 

for details on 

the settings available in the main menu.  

PV Input Voltage

Battery Voltage

AUX Status

Instantaneous Kilowatts

PV Input Current
Output Current

Mode of Operation

Daily Accumulated 
Kilowatt-hours

Select this option to proceed

Available menus

Adjusts the set points value

Switches between devices on the 
ports of the Communications HUB

Soft Key Color Code:

Navigation colors

Selects a function (e.g., ON, OFF, AUTO)

NOTE:  Soft key functions will vary depending on the selected 
menu and are defined by the word above the key in the LCD.

If accompanied by a dashed 
line, pressing that soft key will 
return the user to the location 
identified by the dashed line.  
This will vary depending on the 
devices in the system.

Indicates a 1-screen movement within a 
menu.  These are color-coded according to 
their function or purpose.

Models:

FLEXmax 80

:  80 amps maximum continuous 

output current (up to 40°C without thermal derating)

FLEXmax 60

:  60 amps maximum continuous 

output current (up to 40°C without thermal derating)

Features:

Maximum Power Point Tracking

Supports 12, 24, 36, 48, and 60 Vdc 
battery voltages

Backlit display screen (LCD) with 80 characters 
(4 lines, 20 characters per line)

Last 128 days of operational data logging

Voltage step-down capability allowing a higher PV 
array voltage configuration

Manual and automatic equalize cycles

Screen Versions:

English
Spanish
Australian

(English with different default settings)

FLEXmax Charge 

Controller

PV 

+

PV 

BAT

BAT 

+

MATE 

Port 

(RJ45)

RTS 

Port 

(RJ11)

Torque = 

4 Nm (35 in-lb)

1

2

Terminals

LCD Screen

Soft Keys

IMPORTANT: 

Example only.  

Actual wiring may vary.  

All configurations must comply with local and national 
electric codes.  Consult your local electric authority to 
ensure compliance.  

(RTS)

PV Combiner Box

Photovoltaic Array 

(PV)

Negative

Positive

Ground

DC LEGEND

Battery Bank

Vented Battery Enclosure

DC Disconnect

Ground Bus

ON

OF

F

System Display 

and Controller 

(MATE3)

Maximum PV Input Wattage 

per Charge Controller

Battery 

Bank 

Voltage

Maximum PV 

Input Wattage 

for the 

FLEXmax 80

Maximum PV 

Input Wattage 

for the 

FLEXmax 60

12 Vdc

1000 W

750 W

24 Vdc

2000 W

1500 W

36 Vdc

3000 W

2250 W

48 Vdc

4000 W

3000 W

60 Vdc

5000 W

3750 W

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