Victron energy BlueSolar MPPT 150/60-MC4 User manual

Manual
SmartSolar charge controllers
MPPT 150/45-Tr MPPT 150/45-MC4
MPPT 150/60-Tr MPPT 150/60-MC4
MPPT 150/70-Tr MPPT 150/70-MC4
MPPT 150/85-Tr MPPT 150/85-MC4
MPPT 150/100-Tr MPPT 150/100-MC4
MPPT 250/60-Tr MPPT 250/60-MC4
MPPT 250/70-Tr MPPT 250/70-MC4
MPPT 250/85-Tr MPPT 250/85-MC4
MPPT 250/100-Tr MPPT 250/100-MC4

1. General Description
Bluetooth Smart built-in: dongle not needed
The wireless solution to set-up, monitor and update the controller using
Apple and Android smartphones, tablets or other devices.
VE.Direct port
For a wired data connection to a Color Control, Venus GX, PC or other
devices.
Remote on-off input
On/off control by a VE.Bus BMS when charging Li-ion batteries.
Programmable relay
Can be programmed (a.o. with a smartphone) to trip on an alarm, or other
events.
Optional: pluggable LCD display
Simply remove the rubber seal that protects the plug on the front of the
controller and plug-in the display.
Ultra-fast Maximum Power Point Tracking (MPPT)
Especially in case of a clouded sky, when light intensity is changing
continuously, an ultra fast MPPT controller will improve energy harvest by up
to 30% compared to PWM charge controllers and by up to 10% compared to
slower MPPT controllers.
Advanced Maximum Power Point Detection in case of partial shading
conditions
If partial shading occurs, two or more maximum power points may be
present on the power-voltage curve.
Conventional MPPTs tend to lock to a local MPP, which may not be the
optimum MPP.
The innovative SmartSolar algorithm will always maximize energy harvest by
locking to the optimum MPP.
Outstanding conversion efficiency
No cooling fan. Maximum efficiency exceeds 98%. Full output current up to
40°C (104°F).
Extensive electronic protection
Over-temperature protection and power derating when temperature is high.
PV reverse polarity protection.
Internal temperature sensor
Compensates absorption and float charge voltages for temperature.
(range 6°C to 40°C)

Optional external voltage and temperature sensor
(range -20°C to 50°C)
The Smart Battery Sense is a wireless battery voltage-and-temperature
sensor for Victron MPPT Solar Chargers. The Solar Charger uses these
measurements to optimize its charge parameters. The accuracy of the data it
transmits will improve battery charging efficiency, and prolong battery life
Alternatively, Bluetooth communication can be set up between a BMV-712
battery monitor with battery temperature sensor and the solar charge
controller.
For more detail please enter smart networking in the search box on
our website.
Automatic battery voltage recognition
The controllers will automatically adjust to a 12V, 24V or a 48V system one
time only. If a different system voltage is required at a later stage, it must be
changed manually, for example with the Bluetooth app or the optionel LCD
display. Similarly, manual setting is required in case of 36V system.
Flexible charge algorithm
Fully programmable charge algorithm, and eight preprogrammed algorithms,
selectable with a rotary switch.
Adaptive three step charging
The SmartSolar MPPT Charge Controller is configured for a three step
charging process: Bulk – Absorption – Float.
A regular equalization charge can also be programmed: see section 3.8 of
this manual.
Bulk
During this stage the controller delivers as much charge current as possible
to rapidly recharge the batteries.
Absorption
When the battery voltage reaches the absorption voltage setting, the
controller switches to constant voltage mode.
When only shallow discharges occur the absorption time is kept short in
order to prevent overcharging of the battery. After a deep discharge the
absorption time is automatically increased to make sure that the battery is
completely recharged. Additionally, the absorption period is also ended when
the charge current decreases to less than 2A.
Float
During this stage, float voltage is applied to the battery to maintain it in a fully
charged state.
Equalization
See section 3.10

Configuring and monitoring
Configure the solar charge controller with the VictronConnect app. Available
for iOS & Android devices; as well as macOS and Windows computers. An
accessory might be required; enter victronconnect in the search box on our
website and see the VictronConnect download page for details.
For simple monitoring, use the MPPT Control; a panel mounted simple yet
effective display that shows all operational parameters. Full system
monitoring including logging to our online portal, VRM, is done using the GX
Product range
MPPT Control
Color Control
Venus GX

2. Safety instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that shall be followed during
installation and maintenance.
● Please read this manual carefully before the product is
installed and put into use.
● This product is designed and tested in accordance with
international standards. The equipment should be used for the
designated application only.
● Install the product in a heatproof environment. Ensure
therefore that there are no chemicals, plastic parts, curtains or
other textiles, etc. in the immediate vicinity of the equipment.
● The product is not allowed to be mounted in a user accessible
area.
● Ensure that the equipment is used under the correct operating
conditions. Never operate it in a wet environment.
● Never use the product at sites where gas or dust explosions
could occur.
● Ensure that there is always sufficient free space around the
product for ventilation.
● Refer to the specifications provided by the manufacturer of the
battery to ensure that the battery is suitable for use with this
product. The battery manufacturer's safety instructions should
always be observed.
● Protect the solar modules from incident light during installation,
e.g. cover them.
● Never touch uninsulated cable ends.
● Use only insulated tools.
● Connections must always be made in the sequence described
in section 3.5.
● The installer of the product must provide a means for cable
strain relief to prevent the transmission of stress to the
connections.
● In addition to this manual, the system operation or service
manual must include a battery maintenance manual applicable to
the type of batteries used.
Danger of explosion from sparking
Danger of electric shock

● Use flexible multistranded copper cable for the battery and PV
connections.
The maximum diameter of the individual strands is
0,4mm/0,125mm² (0.016 inch/AWG26).
A 25mm² cable, for example, should have at least 196 strands (class 5 or
higher stranding according to VDE 0295, IEC 60228 and BS6360).
An AWG2 gauge cable should have at least 259/26 stranding (259 strands of
AWG26).
Maximum operating temperature: ≥ 90°C.
Example of suitable cable: class 5 “Tri-rated” cable (it has three approvals:
American (UL), Canadian (CSA) and British (BS))
In case of thicker strands the contact area will be too small and the
resulting high contact resistance will cause severe overheating,
eventually resulting in fire.
● Maximum current through a MC4 terminal: 30A
● The grounding terminal is located in the wiring compartment
and is identified by the symbol below:

3. Installation
WARNING: DC (PV) INPUT NOT ISOLATED FROM BATTERY CIRCUIT.
CAUTION: FOR PROPER TEMPERATURE COMPENSATION
THE AMBIENT CONDITION FOR CHARGER AND BATTERY MUST BE
WITHIN 5°C.
3.1 General
● Mount vertically on a non-flammable surface, with the power terminals
facing downwards. Observe a minimum clearance of 10 cm under and above
the product for optimal cooling.
● Mount close to the battery, but never directly above the battery (in order to
prevent damage due to gassing of the battery).
● Improper internal temperature compensation (e.g. ambient condition
battery and charger not within 5°C) can lead to reduced battery lifetime.
We recommend using a direct battery voltage sense source (BMV,
Smart Battery Sense or GX device shared voltage sense) if larger
temperature differences or extreme ambient temperature conditions
are expected.
● Battery installation must be done in accordance with the storage battery
rules of the Canadian Electrical Code, Part I.
● The battery connections (and for Tr version also PV connections) must be
guarded against inadvertent contact (e.g. install in an enclosure or install the
optional WireBox).
Tr models: use flexible multistranded copper cable for the battery and PV
connections: see safety instructions.
MC4 models: several splitter pairs may be needed to parallel the strings of
solar panels. (Maximum current through a MC4 terminal: 30A)
3.2 Grounding
● Battery grounding: the charger can be installed in a positive or negative
grounded system.
Note: apply a single ground connection (preferably close to the battery) to
prevent malfunctioning of the system.
● Chassis grounding: A separate earth path for the chassis ground is
permitted because it is isolated from the positive and negative terminal.
● The USA National Electrical Code (NEC) requires the use of an external
ground fault protection device (GFPD). These MPPT chargers do not have
internal ground fault protection. The system electrical negative should be
bonded through a GFPD to earth ground at one (and only one) location.
● The charger must not be connected with grounded PV arrays. (one ground
connection only)
● The plus and minus of the PV array should not be grounded. Ground the
frame of the PV panels to reduce the impact of lightning.
WARNING: WHEN A GROUND FAULT IS INDICATED, BATTERY
TERMINALS AND CONNECTED CIRCUITS MAY BE UNGROUNDED
AND HAZARDOUS.

3.3 PV configuration (also see the MPPT Excel sheet on our website)
● The controllers will operate only if the PV voltage exceeds
battery voltage (Vbat).
● PV voltage must exceed Vbat + 5V for the controller to start.
Thereafter minimum PV voltage is Vbat + 1V.
● Maximum open circuit PV voltage: 150V or 250V, depending on model.
For example:
24V battery, mono- or polycristalline panels, max PV voltage 150V:
● Minimum number of cells in series: 72 (2x 12V panel in series
or one 24V panel).
● Recommended number of cells for highest controller efficiency:
144 cells (4x 12V panel or 2x 24V panel in series).
● Maximum: 216 cells (6x 12V or 3x 24V panel in series).
48V battery, mono- or polycristalline panels, max PV voltage 250V:
● Minimum number of cells in series: 144
(4x 12V panel or 2x 24V panel in series).
● Maximum: 360 cells (10x 12V or 5x 24 panel in series).
Remark: at low temperature the open circuit voltage of a 216 cell solar array
may exceed 150V, and the open cicuit voltage of a 360 cell array may
exceed 250V, depending on local conditions and cell specifications. In that
case the number of cells in series must be reduced.
3.4 Cable connection sequence (see figure 1)
First: connect the battery.
Second: if required, connect the remote on-off and programmable relay
Third: connect the solar array (when connected with reverse polarity, the
controller will heat up but will not charge the battery).
Torque: 2,4 Nm
3.5 Remote on-off
The left terminal is connected to the internal 3,3V supply, with a resistor in
series for short circuit protection.
The right terminal (marked as + or marked as H) will switch the controller on
if >3V is applied, and will switch the controller off if <2V is applied or if the
terminal is left free floating.
The recommended use of the remote on-off is:
a. A switch wired between the left and right terminal
b. A switch wired between battery plus and the right terminal.
c) A switch between the right terminal and the charge disconnect terminal of a VE.Bus BMS

3.6 Configuration of the controller with the rotary switch
Fully programmable charge algorithm (see the software page on our
website) and eight preprogrammed charge algorithms, selectable with a
rotary switch:
Pos
Suggested battery type
Absorption
V
Float
V
Equalize
V
@%Inom
dV/dT
mV/°C
0
Gel Victron long life (OPzV)
Gel exide A600 (OPzV)
Gel MK
28,2 27,6
31,8
@8%
-32
1 Gel Victron deep discharge
Gel Exide A200
AGM Victron deep discharge
Stationary tubular plate (OPzS)
28,6 27,6
32,2
@8% -32
2
Default setting
Gel Victron deep discharge
Gel Exide A200
AGM Victron deep discharge
Stationary tubular plate (OPzS)
28,8 27,6
32,4
@8% -32
3
AGM spiral cell
Stationary tubular plate (OPzS)
Rolls AGM
29,4
27,6
33,0
@8%
-32
4
PzS tubular plate traction batteries or
OPzS batteries
29,8
27,6
33,4
@25%
-32
5
PzS tubular plate traction batteries or
OPzS batteries
30,2
27,6
33,8
@25%
-32
6
PzS tubular plate traction batteries or
OPzS batteries
30,6
27,6
34,2
@25%
-32
7
Lithium Iron Phosphate (LiFePo
4
)
batteries
28,4 27,0 n.a. 0
Note 1: divide all values by two in case of a 12V system and multiply by two
in case of a 48V system.
Note 2: equalize normally off, see sect. 3.9 to activate
(do not equalize VRLA Gel and AGM batteries)
Note 3: any setting change performed with the pluggable LCD display or via
Bluetooth will override the rotary switch setting. Turning the rotary switch will
override prior settings made with the pluggable LCD display or via Bluetooth.

A binary LED code helps determining the position of the rotary switch.
After changing the position of the rotary switch, the LEDs will blink during 4
seconds as follows:
Thereafter, normal indication resumes, as described in the LEDs section.
3.7 LEDs
LED indication:
permanent on
blinking
off
Regular operation
LEDs
Bulk
Absorption
Float
Not charging (*1)



Bulk



Absorption



Manual equalisation (blink
alternating)
  
Automatic equalisation



Float



Note (*1): The bulk LED will blink briefly every 3 seconds when the system is powered but
there is insufficient power to start charging.
Fault situations
LEDs
Bulk
Absorption
Float
Charger temperature too high



Charger over-current



Charger or panel over-voltage



VE.Smart networking or BMS
issue
  
Internal error (*2)



Note (*2): E.g. calibration and/or settings data lost, current sensor issue.
Switch
position
LED
Bulk
LED
Abs
LED
Float
Blink
frequency
0
1
1
1
Fast
1
0
0
1
Slow
2
0
1
0
Slow
3
0
1
1
Slow
4
1
0
0
Slow
5
1
0
1
Slow
6
1
1
0
Slow
7
1
1
1
Slow

3.8 Battery charging information
The charge controller starts a new charge cycle every morning, when the
sun starts shining.
Lead-acid batteries: default method to determine length and
end of absorption
The charging algorithm behaviour of MPPTs differs from AC connected
battery chargers. Please read this section of the manual carefully to
understand MPPT behaviour, and always follow the recommendations of
your battery manufacturer.
By default, the absorption time is determined on idle battery voltage at the
start of each day based on the following table:
Battery voltage Vb
(@start-up)
Multiplier
Maximum
absorption time
Vb < 11,9V x 1 6h
11,9V < Vb < 12,2V x 2/3 4h
12,2V < Vb < 12,6V x 1/3 2h
Vb > 12,6V x 1/6 1h
(12V values, adjust for 24V))
The absorption time counter starts once switched from bulk to absorption.
The MPPT Solar Chargers will also end absorption and switch to float when
the battery current drops below a low current threshold limit, the ‘tail current’.
The default tail current value is 2A.
The default settings (voltages, maximum absorption time and tail current)
can be modified with the Victronconnect app via or via VE.Direct.
There are two exceptions to normal operation:
1. When used in an ESS system; the solar charger algorithm is disabled;
and instead it follows the curve as mandated by the inverter/charger.
2. For CAN-bus Lithium batteries, like BYD, the battery tells the system,
including the solar charger, what charge voltage to use. This Charge
Voltage Limit (CVL) is for some batteries even dynamic; changes over
time; based on for example maximum cell voltage in the pack and other
parameters.
When, in case of the above-mentioned exceptions, several solar chargers
are connected to a GX device, these chargers will automatically be
synchronised.
Variations to expected behaviour

1. Pausing of the absorption time counter
The absorption time counter starts when the configured absorption
voltage is reached and pauses when the output voltage is below the
configured absorption voltage.
An example of when this voltage drop could occur is when PV power (due
to clouds, trees, bridges) is insufficient to charge the battery and to power
the loads.
When the absorption timer is paused, the absorption LED will flash very
slowly.
2. Restarting the charge process
The charging algorithm will reset if charging has stopped (i.e. the
absorption time has paused) for an hour. This may occur when the PV
voltage drops below the battery voltage due to bad weather, shade or
similar.
3. Battery being charged or discharged before solar charging begins
The automatic absorption time is based on the start-up battery voltage
(see table). This absorption time estimation can be incorrect if there is an
additional charge source (eg alternator) or load on the batteries.
This is an inherent issue in the default algorithm. However, in most cases
it is still better than a fixed absorption time regardless of other charge
sources or battery state.
It is possible to override the default absorption time algorithm by setting a
fixed absorption time when programming the solar charge controller. Be
aware this can result in overcharging your batteries. Please see your
battery manufacturer for recommended settings.
4. Absorption time determined by tail current
In some applications it may be preferable to terminate absorption time
based on tail current only. This can be achieved by increasing the default
absorption time multiplier.
(warning: the tail current of lead-acid batteries does not decrease to zero
when the batteries are fully charged, and this “remaining” tail current can
increase substantially when the batteries age)
Default setting, LiFePO4 batteries
LiFePO4 batteries do not need to be fully charged to prevent premature
failure.
The default absorption voltage setting is 14,2V (28,4V).
And the default absorption time setting is 2 hours.
Default float setting: 13,2V (26,4V).
These settings are adjustable.
Reset of the charge algorithm:
The default setting for restarting the charge cycle is
Vbatt < (Vfloat – 0,4V) for lead-acid, and Vbatt < (Vfloat – 0,1V) for LiFePO4
batteries, during 1 minute.
(values for 12V batteries, multiply by two for 24V)

3.9 Automatic equalization
Automatic equalization is default set to ‘OFF’. With the Victron Connect app
(see sect 1.12) this setting can be configured with a number between 1
(every day) and 250 (once every 250 days).
When automatic equalization is active, the absorption charge will be followed
by a voltage limited constant current period. The current is limited to 8% or
25% of the bulk current (see table in sect. 3.5). The bulk current is the rated
charger current unless a lower maximum current setting has been chosen.
When using a setting with 8% current limit, automatic equalization ends
when the voltage limit has been reached, or after 1 hour, whichever comes
first.
Other settings: automatic equalization ends after 4 hours.
When automatic equalization is not completely finished within one day, it will
not resume the next day, the next equalization session will take place as
determined by the day interval.
3.10 Pluggable LCD display - Live data
Remove the rubber seal that protects the plug on the front of the controller
and plug-in the display module. The display is hot-swappable; this means
that the charger may be operational while the display is plugged in.
The following information will be displayed if the "-" button is pressed (in
order of appearance):
Displayed info
Icons
Segments
Units
Battery voltage and charge current
.
A
Battery charge current
.
A
Battery voltage
.
V
Battery charge power

.

W
Battery temperature (1)

.

,

,

°C/°F
Charger temperature (1)
.,,
°C/°F
Panel current
.
A
Panel voltage
.
V
Panel power
.
W
Warning message
(2)
 
Error message (2)
 
Remote operation (2)

BMS operation (2)

Notes:
1) A valid temperature is shown, --- = no sensor information or Err = invalid sensor data.
2) These items are only visible when relevant.
Pressing the "-" button or the "+"button for 4 seconds activates the auto-
scroll-mode. Now all LCD-screens will pop-up one by one with short
intervals. The auto-scroll-mode can be stopped by pressing the "-" or the "+"
button shortly.

3.11 Pluggable LCD display - History data
The charge controller tracks several parameters regarding the energy
harvest. Enter history data by pressing the SELECT button when in monitor
mode, a scrolling text will be visible. Press + or – to browse the various
parameters as shown in the table below, press SELECT to stop scrolling and
show the corresponding value. Press + or – to browse the various values.
For the daily items it is possible to scroll back to 30 days ago (data becomes
available over time), a brief popup shows the day number. Press SELECT to
leave the historical menu and go back to the monitor mode, alternatively
press SETUP to return to the scrolling text.
Scrolling text
Icons (1)
Segments
Units
Displayed info
 
.
kWh
Total yield
 
 
Total error 0 (most recent)
 
Total error 1 (shown when available)
 
Total error 2 (shown when available)
 
Total error 3 (shown when available)
    
.

V
Total panel voltage maximum
  
 .
V
Total battery voltage maximum

 .
Day kWh
Daily yield
  
 .
Day V
Daily battery voltage maximum
  
 .
Day V
Daily battery voltage minimum
 
 
Day
Daily error 0 (most recent)
 
Day
Daily error 1 (shown when available)
 
Day
Daily error 2 (shown when available)
 
Day
Daily error 3 (shown when available)
 
 
Day
Daily time spent in bulk or ESS (minutes)
 
 
Day
Daily time spent in absorption (minutes)
 
 
Day
Daily time spent in float (minutes)
 
 
Day W
Daily power maximum
  
 .
Day A
Daily battery current maximum
  
 .
Day V
Daily panel voltage maximum
Note:
When the charger is not active (night time) the bulk, absorption and float icons will be shown
as in the table above.
When the charger is active only one icon will be shown: the icon corresponding to the actual
charge state.
3.12 Pluggable LCD display - Setup menu
a. To enter the SETUP Menu, press and hold the SETUP-button during 3
seconds. The “Menu” icon will light up and a scrolling text is visible.
b. Press the "-" or "+" button to scroll through the parameters.
c. The table below lists, in order of appearance, all parameters which can be
adjusted by pressing the "-" button.
d. Press SELECT: the parameter to change will now blink.
e. Use the "-" or "+" button to chose the desired value.
f. Press SELECT to confirm the change, the value will stop blinking, and the
change is made final.
g. Press SETUP to return to the parameters menu. With the "-" or "+" button
it is now possible to scroll to another parameter that needs change.
h. To return to normal mode, press SETUP during 3 seconds.

Scrolling text
Icons
Segments
Units
Function or parameter
    
,

On/off switch
   


.

-

.

A
Maximum charge current
  
-
V
System voltage
   
,

-

Type
Charge algorithm (1)
  


.

-

.

-

.

V
Absorption voltage (2)
  
.-.-.
V
Float voltage (2)
  

.-.-.
V
Equalization voltage (2)
  


,

Automatic equalization (3)
  


,

Manual equalization (4)
   
.

,

-

-

Relay function (5)
   

 
.

-

.

-

.

V
Low battery voltage alarm set
   

 
.

-

.

-

.

V
Low battery voltage alarm clear
   

 .-.-.
V
High battery voltage alarm set
   

 
.

-

.

-

.

V
High battery voltage alarm clear
   

 .-.
V
High panel voltage alarm set
   
 
 .-.-.
V
High panel voltage alarm clear
   
 
 
-

Relay minimum closed time
(minutes)
  

.-.-.
°C mV
Battery temperature
compensation per cell (2)
  
.-.-.
A
Tail current
  
 

.

-

.

-

.

h
Absorption time
   

...
V
Re-bulk offset voltage (subtracted
from setting 6)
  
 

.

.

A
Charge current below 5°C (setting
30)
  

...
°C
Stop charging temperature level
    
,

BMS Present (6)
  
 
Load control (7)
   
 .-.-.
Load user defined low voltage
   

 .-.-.
Load user defined high voltage
  
 

.

-

.

-

.

h
Automatic equalization maximum
time
  
 
,
Equalization stops when voltage
(setting 8) reached
  
 
--
Equalization current percentage
(percentage of setting 2)
  


-

Backlight intensity
  

,,
Backlight automatic turn off after
60s (8)
  
--
Text scroll speed
  
 
VE.Direct port RX pin mode (9)
  
 
VE.Direct port TX pin mode (10)
  
.
Software version
  

Reset to default settings (11)
  

History data reset (12)
  
 ,
Lock settings
  
,
Temperature unit °C/°F
Notes:

1) The factory defined battery type can be selected with the rotary switch next to VE.Direct
connector. The selected type will be shown here. The setting can alter between a factory
defined type and "USER".
2) These values can ONLY be changed for the battery type "USER". The values in the table
are for a 24V-battery.
3) Automatic equalisation can be set to “OFF” (default) or a number between 1 (every day)
and 250 (once every 250 days). See section 3.8 for more details about automatic
equalisation.
4) To allow the charger to equalise the battery properly, use the manual equalise option only
during absorbtion and float periods, and when there is sufficient sunlight. Press SELECT:
the text “” will blink, press SELECT again to start equalisation. To terminate the
equalisation mode prematurely, enter the setup menu and navigate to setup item 10, press
SELECT: the text “” will blink, press SELECT again to stop equalisation. The manual
equalise duration is 1 hour.
5) Relay function (setting 11):
Value
Description
0
Relay always off
1
Panel voltage high (setup items 16 and 17)
2
Internal temperature high (>85°C)
3
Battery voltage too low (setup items 12 and 13, default setting)
4
Equalization active
5
Error condition present
6
Internal temperature low (<-20°C)
7
Battery voltage too high (setup items 14 and 15)
8
Charger in float or storage
9
Day detection (panels irradiated)
10
Load control (relay switches according to load control mode, see setting 35 and
note 7)
6) The parameter BMS present will be set to 'Y'es internally when a compatible BMS is
detected. Setting 31 can be used to revert the charger to normal operation (i.e. without
BMS) by setting it manually to 'N'o. (for example if the charger is moved to another location
were a BMS is not needed).
Warning: do not set this parameter to 'Y'es when using a VE.Bus BMS connected to
the remote on-off port (see sect 3.5).
7) Load control mode (setting 35).
To use the relay (setting 11, value 10), or the VE.Direct port (setting 58, value 4) to control a
load according the options below:
Value
Description
0
Load output always off
1
Batterylife algorithm (default)
2
Conventional algorithm 1 (off<22.2V, on>26.2V)
3
Conventional algorithm 2 (off<23.6V, on>28.0V)
4
Load output always on
5
User defined algorithm 1 (off<20.0V, on>28.0V)
6
User defined algorithm 2 (off<20.0V<on<28.0V<off)
8) Backlight automatic turn-off has the following options: OFF=backlight remains lit all the
time, ON=the backlight will dim 60s after the last keypress, AUTO=when charging the
backlight is lit, otherwise it will dim.

9) VE.Direct port RX pin mode (setting 57)
Value
Description
0
Remote on/off (default). Can be used for on-off control by a VE.Bus BMS (instead of
connecting the BMS to the remote on-off port.
VE.Direct non-inverting remote on/off cable needed. (ASS030550310)
1
No function.
2
3
The RX pin can de-energize the relay (relay off), if relay function 10 of setting 11 has
been set (see note 5, value 10). The load control options (setting 35) remain valid.
In other words, a AND function is created: both the load control and the RX pin must
be high (value=2) or low (value=3) to energize the relay.
10) VE.Direct port TX pin mode (setting 58)
Value
Description
0
Normal VE.Direct communication (default)
For example to communicate with a Color Control panel (VE.Direct cable needed)
1
Pulse every 0.01kWh
2
Light dimming control (pwm normal) TX digital output cable needed
(ASS0305505500)
3
Light dimming control (pwm inverted) TX digital output cable needed
(ASS0305505500)
4
Load control mode: theTX pin switches according to load control mode, see note 7.
TX digital output cable (ASS0305505500) needed to interface to a logic level load
control port.
11) Press SELECT: the text “” will blink, press SELECT again to reset to original
factory settings. The charger will re-boot. The history data will not be affected (kWh counter,
etc).
12) Press SELECT: the text “” will blink, press SELECT again to erase the history data
(kWh-counter, etc). Note that this takes a few seconds to complete.
Note: any setting change performed with the pluggable LCD display or via Bluetooth
will override the rotary switch setting. Turning the rotary switch will override prior
settings made with the pluggable LCD display or via Bluetooth.
Warning:Some battery manufacturers do recommend a constant current equalization
period, and others do not. Do not use constant current equalization unless
recommend by the battery supplier.

4. Troubleshooting
Problem
Possible cause
Solution
Charger does not
function
Reversed PV connection Connect PV correctly
Reverse battery
connection
Non replacable fuse
blown.
Return to VE for repair
The battery is not fully
charged
A bad battery connection
Check battery
connection
Cable losses too high
Use cables with larger
cross section
Large ambient
temperature difference
between charger and
battery (Tambient_chrg >
Tambient_batt)
Make sure that
ambient conditions
are equal for charger
and battery
Only for a 24V or 48V
system: wrong system
voltage chosen (e.g. 12V
instead of 24V) by the
charge controller
Set the controller
manually to the
required system
voltage
The battery is being
overcharged
A battery cell is defect
Replace battery
Large ambient
temperature difference
between charger and
battery (Tambient_chrg <
Tambient_batt)
Make sure that
ambient conditions
are equal for charger
and battery

Using the pluggable LCD display or VictronConnect and the procedures
below, most errors can be quickly identified. If an error cannot be resolved,
please refer to your Victron Energy supplier.
Error nr.
Problem
Cause / Solution
n. a.
The LCD does not light up
(no backlight, no display)
The internal power supply used for powering
the converter and the backlight is derived from
either the solar-array or the battery.
If PV and battery voltage are both below 6V
the LCD will not light up. Make sure that the
LCD display is properly inserted into the
socket.
n. a.
The LCD does not light up
(backlight works, no display,
charger seems to work)
This may be due to low ambient temperature.
If the ambient temperature is below -100C
(140F) the LCD-segments can become vague.
Below -200C (-40F) the LCD-segments can
become invisible.
During charging the LCD-display will warm up,
and the screen will become visible.
n. a.
The charge controller does
not charge the battery
The LCD-display indicates that the charge-
current is 0 Amps.
Check the polarity of the solar-panels.
Check the battery breaker
Check if there is an error indication on the LCD
Check if the charger is set to "ON" in the
menu.
Check if the Remote input is connected.
Check if the right system voltage has been
selected
n. a.
High temperature: the
thermometer icon blinks
This error will auto-reset after temperature has
dropped.
Reduced output current due to high
temperature.
Check the ambient temperature and check for
obstructions near the heatsink.
Err 2
Battery voltage too high
(>76,8V)
This error will auto-reset after the battery
voltage has dropped.
This error can be due to other charging
equipment connected to the battery or a fault
in the charge controller.
Err 17
Controller overheated
despite reduced output
current
This error will auto-reset after charger has
cooled down.
Check the ambient temperature and check for
obstructions near the heatsink.
Err 18
Controller over-current
This error will auto-reset.
Disconnect the charge controller from all
power-sources, wait 3 minutes, and power up
again.
If the error persists the charge controller is
probably faulty.
Err 20
Maximum Bulk-time
exceeded
This error can only occur when the maximun
bulk-time protection is active. This error will not
auto-reset.
This error is generated when the battery-
absorption-voltage is not reached after 10
hours of charging.
For normal solar installations it is advised not
to use the maximum bulk-time protection.
Err 21
Current sensor issue
The charge controller is probably faulty.
This error will not auto-reset.

Error nr.
Problem
Cause / Solution
Err 26
Terminal overheated
Power terminals overheated, check wiring and
fasten bolts if possible.
This error will auto-reset.
Err 33
PV over-voltage
This error will auto-reset after PV-voltage has
dropped to safe limit.
This error is an indication that the PV-array
configuration with regard to open-circuit
voltage is critical for this charger. Check
configuration, and if required, re-organise
panels.
Err 34
PV over-current
The current from the solar-panel array has
exceeded 75A. This error could be generated
due to an internal system fault.
Disconnect the charger from all power-
sources, wait 3 minutes, and power-up again.
If the error persists the controller is probably
faulty.
This error will auto-reset.
Err 38
Input shutdown due to
battery over-voltage
To protect the battery from over-charging the
panel input is shut down. To recover from this
condition first disconnect the solar panels and
disconnect the battery. Wait for 3 minutes
reconnect the battery first and next the panels.
If the error persists the charge controller is
probably faulty.
Inf 65
Communication warning
Communication with one of the paralleled
controllers was lost. To clear the warning,
switch the controller off and back on.
Inf 66
Incompatible device
The controller is being paralleled to another
controller that has different settings and/or a
different charge algorithm.
Make sure all settings are the same and
update firmware on all chargers to the latest
version.
Err 67
BMS connection lost
Connection to the BMS lost, check the
connection (Cabling / Bluetooth link). When
the charger needs to operate in stand-alone
mode again, change to setup menu setting
‘BMS’ from ‘Y’ to ‘N’ (setup item 31).
Err 114
CPU temperature too high
This error will reset after the CPU has cooled
down.
If the error persists, check the ambient
temperature and check for obstructions near
the air inlet and outlet holes of the charger
cabinet.
Check manual for mounting instructions with
regard to cooling. If error persists the controller
is probably faulty.
Err 116
Calibration data lost
This error will not auto-reset.
Err 119
Settings data lost
This error will not auto-reset.
Restore defaults in the setup menu (setup item
62).
Disconnect the charge controller from all
power-sources, wait 3 minutes, and power up
again.