Victron energy BlueSolar MPPT 150/70-Tr User manual

SmartSolar charge controllers with CAN-bus
MPPT 150/70-Tr VE.Can MPPT 150/70-MC4 VE.Can
MPPT 150/85-Tr VE.Can MPPT 150/85- MC4 VE.Can
MPPT 150/100-Tr VE.Can MPPT150/100-MC4 VE.Can
MPPT 250/70-Tr VE.Can MPPT 250/70-MC4 VE.Can
MPPT 250/85-Tr VE.Can MPPT 250/85-MC4 VE.Can
MPPT 250/100-Tr VE.Can MPPT 250/100-MC4 VE.Can
Manual
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Anleitung
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Manual
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Användarhandbok
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Appendix

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Appendix
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 and two VE.Can ports
Both ports can be used 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)

2
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 3.12 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 3.12

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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

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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.
● Without a wire box 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 3.4.
● Without a wire box 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

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● 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:

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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.

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Appendix
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
Use modes of the system on-off:
a. ON when the L and H terminal are interconnected (switch or relay contact)
b. ON when the L terminal is pulled to battery minus (V< 3.5V)
c. ON when the H terminal is high (2.9V < VH < Vbat)
d. OFF in all other conditions
The recommended use of the remote on-off is:
a. A switch wired between the L-H pins
b. A switch wired between battery plus and the H-pin.
c) A switch between the L-pin and the charge disconnect terminal of a VE.Bus BMS

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3.6 CAN bus interface
The charger is equipped with two CAN bus RJ45 sockets.
The CAN bus on this charger is not galvanically isolated. The CAN bus is
referenced to the minus battery connection.
The CAN bus interface will be referenced to ground if the minus pole of the
battery is grounded. In case of a positive grounded system, a CAN isolation
module will be needed to reference the CAN bus interface to ground.
The end of a CAN cable should have a bus terminator. This is achieved by
inserting a bus terminator in one of the two RJ45 connectors and the CAN
cable in the other. In case of a node (two CAN cables, one in each RJ45
connector), no termination is needed.
Supply voltage (V+ supply): 9V-70V
Maximum supply current: 500mA
Data rate: 250 kbps
CANH/CANL voltage tolerance: +/-70VDC
CAN transceiver ISO specification: ISO 11898-2:2016
To provide maximum flexibility, the battery voltage is used for the V+
supply line of VE.CAN. This means that all equipment connected to
VE.CAN are a permanent load to the battery.

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3.7 Synchronised parallel operation
Several charge controllers can be synchronised with the CAN interface. This
is achieved by simply interconnecting the chargers with RJ45 UTP cables
(bus terminators needed, see section 3.6).
The paralleled charge controllers must have identical settings (e.g. charge
algorithm). The CAN communication ensures that the controllers will switch
simultaneously from one charge state to another (from bulk charge to
absorption for example). Each unit will (and should) regulate its own
output current, depending a.o. on the output of each PV array and cable
resistance.
In case of synchronized parallel operation, the network icon will blink
every 3 seconds on all paralleled units.
The PV inputs should not be connected in parallel. Each charge
controller must be connected to its own PV array.
3.8 Energy Storage System (ESS)
An Energy Storage System (ESS) is a specific type of power system that
integrates a power grid connection with a Victron Inverter/Charger, Venus-
device and battery system. It stores solar energy into your battery during the
day, for use later on when the sun stops shining.
Please refer to the following manual how to setup an ESS:
https://www.victronenergy.com/live/ess:start

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3.9 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 (LiFePo4)
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.

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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.
3.10 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

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3.11 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 Bluetooth 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.

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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)

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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.

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3.13 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.
3.14 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.

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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.
3.15 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)

17
EN
NL
FR
DE
ES
SE
IT
Appendix
Scrolling text
Icons
Segments
Units
Function or parameter


,
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
Max. charge current below the
low temperature level (item 30)


 .--.
°C
Low temperature level (for item
29)

 ,
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)

 -
VE.Can network address


 -
VE.Can device instance

.
Software version


Reset to default settings (11)


History data reset (12)

 ,
Lock settings

,
Temperature unit °C/°F

18
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, it cannot be set the ‘Y’es manually.
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.