Victron energy BlueSolar MPPT 150/70 User manual

Manual
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Manuel
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Appendix
BlueSolar charge controller MPPT 150/70

2

3
EN NL FR DE ES SE Appendix
1. PRODUCT INTRODUCTION
Charge current up to 70 A and PV voltage up to 150 V
The BlueSolar 150/70-MPPT charge controller is able to charge a lower nominal-
voltage battery from a higher nominal voltage PV array.
The controller will automatically adjust to a 12, 24, or 48 V nominal battery voltage.
Synchronised parallel operation of up to 25 units
Interconnect the charge controllers with RJ45 UTP cables and they will automatically
synchronise.
Charge process controlled by a Multi or Quattro
Connect the charge controller to a Multi or Quattro and build a Hub-1 off-grid or grid-
interactive self-consumption system.
Remote on/off connector
Less wiring and no additional Cyrix relay needed in a system with Li-ion batteries.
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 MPPT’s tend to lock to a local MPP, which may not be the optimum MPP.
The innovative BlueSolar 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).
Flexible charge algorithm
Several preprogrammed algorithms. One programmable algorithm.
Manual or automatic equalisation.
Battery temperature sensor. Battery voltage sense option.
Programmable auxiliary relay
For alarm or generator start purposes
Extensive electronic protection
Over-temperature protection and power derating when temperature is high.
PV short circuit and PV reverse polarity protection.
Reverse current protection.

4
2. SAFETY INSTRUCTIONS
● It is advised to 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.
● Ensure that the equipment is used under the correct operating conditions. Never operate
it in a wet or dusty 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 insulated tools only.
● At a voltage >75 V, particularly with regard to the open circuit voltage of the PV array, the
solar system must be installed according to protection class II. A chassis grounding point is
located on the outside of the product. If it can be assumed that the grounding protection is
damaged, the product should be taken out of operation and prevented from accidentally
being put into operation again; contact qualified maintenance personnel.
● Ensure that the connection cables are provided with fuses or circuit breakers. Never
replace a protective device by a component of a different type. Refer to the manual for the
correct part.
● Connections must always be made in the sequence described in section 4.
● 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
maintance manual applicable to the type of batteries used.
● Use flexible multistranded copper cable for the battery and PV connections.
The maximum diameter of the individual strands is 0,4 mm/0,125 mm² (0.016 inch/AWG26).
A 25 mm² cable, for example, should have at least 196 strands (class 5 or higher stranding
according to VDE 0295, IEC 60228 and BS6360). Also known as H07V-K cable.
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.
Danger of explosion from sparking
Danger of electric shock

5
EN NL FR DE ES SE Appendix
3. INSTALLATION
Important:
In order to enable automatic system voltage recognition always connect the
batteries before connecting the solar panels.
3.1 Location
The product must be installed in a dry and well-ventilated area, as close as possible to -
but not above - the batteries. There should be a clear space of at least 10 cm around
the product for cooling.
The charge controller is intended for wall mounting.
Mount wall bracket (for top holding), make sure it is level.
Put charger on mounting bracket and secure it with two screws in the mounting holes at
the lower backside of the charger.
3.2 Battery cables and battery fuse
Do not invert the plus and minus battery connection: this will
permanently damage the charger.
Cable strain relief must be provided, close to battery and PV connectors.
In order to utilize the full capacity of the product, battery cables with sufficient cross section
and a fuse of sufficient current rating should be used.
Some basic formulas for copper cable:
Resistance Rc (mΩ@47°C) of a cable with length L (m) and cross section A (mm²): Rc = 20*L/A (1)
Or, with Rc in Ω (Ohm): Rc =0,02*L/A (2)
Power loss Pc (W) in a cable carrying current I (A): Pc = I²*Rc = 0,02*l²*L/A (3)
Power loss Pc relative to solar array output Pv in %: α = (Pc/Pv)*100 (4)
Cable cross section required to limit relative power loss to α (%): A = 2*2L*I/(α*V) (5)
(with total cable length 2L) or:
A = 2*2L*Pv/(α*V²) (6)
This product may only be installed by a qualified electrical
engineer.

6
Table 1 below gives some examples of battery cable cross sections calculated with formula
(5).
(in this case I and V in formula (5) are the output current and output voltage of the charge
controller)
12V system (solar array up to 1000W)
Maximum
solar array
output
Maximum
Charge
current
@13,4V
Battery
Fuse
Rating
Power loss
in battery
cablesα(%)
Length 2x1,5 m Length 2x2,5 m Length 2x5 m
mm2AWG mm2AWG mm2AWG
500W 37A 63A 1 16 5 25 3 Not recommended
750W 55A 80A 1,5 16 5 25 3 Not recommended
1000W 70A 1) 100A 2 25 3 35 2 Not recommended
24V system (solar array up to 2000W)
Maximum
solar array
output
Maximum
Charge
current
@26,8V
Battery
Fuse
Rating
Power loss
in battery
cables α(%)
Length 2x1,5 m Length 2x2,5 m Length 2x5 m
mm2AWG mm2AWG mm2AWG
500W 18A 35A 1 6 10 10 7 16 5
1000W 37A 63A 1,5 10 7 10 7 25 3
2000W 70A 1) 100A 2 25 3 25 3 35 2
48V system (solar array up to 4000W)
Maximum
solar array
output
Maximum
Charge
current
@53,6V
Battery
Fuse
rating
Power loss
in battery
cables α(%)
Length 2x2,5 m Length 2x5 m Length 2x10 m
mm2AWG mm2AWG mm2AWG
1000W 21 35 0,5 6 10 10 7 16 5
2000W 42 63 0,5 10 7 16 5 35 2
4000W 70A 1) 100 1 25 3 25 3 35 2
1) Taking into account 6% loss (battery cables + controller + PV cables + fuses)
Note 1: highlighted cable cross sections: minimum cross section due to thermal limit.
Note 2: please consult local regulations regarding maximum allowed current carrying capacity of cables.
Table 1: Battery cable cross section and power loss
36V system (solar array up to 3000W)
Maximum
solar array
output
Maximum
Charge
current
@40,2V
Battery
Fuse
Rating
Power loss
in battery
cables α(%)
Length 2x2,5 m Length 2x5 m Length 2x10 m
mm2AWG mm2AWG mm2AWG
750W 21 35 0,5 6 10 10 7 16 5
1500W 42 63 0,5 16 5 25 3 35 2
3000W 70A 1) 100 1 25 3 25 3 35 2

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EN NL FR DE ES SE Appendix
3.3 PV connection
The PV input current of the charge controller is limited to 50A. In case of a potential
solar array output exceeding 50A, the solar array voltage will increase up to the level at
which the output is reduced to 50A.
The required PV cable cross section depends on array power and voltage. The table
below assumes that maximum PV power has been installed. Cable cross section can
be reduced in case of smaller solar arrays.
The best efficiency is reached at a PV input voltage that is twice the battery voltage.
DC circuit breakers or fuses must be installed in the positive and negative PV cables, to
enable isolation of the charger during installation or maintenance.
The table below gives some examples of cable cross sections calculated with formula
(5).
(in this case I and V are the output current and output voltage of the solar array)
12V system (solar array up to 1000W)
Solar array
MPP-voltage
[V]
Solar array
MPP-current
[A]
Power loss
in PV cables
α(%)
Length 2x5 meter Length 2x10 meter
Length 2x20
meter
mm
2
AWG mm
2
AWG mm
2
AWG
18 Max 50A Not recommended Not recommended
Not
recommended
36 27 1 16 5 35 2
Not
recommended
54 18 1 10 7 16 5 25 3
72 13 0,75 6 10 10 7 25 3
90 11 0,5 6 10 10 7 16 5
108 9 0,5 4 11 6 10 16 5
24V system (solar array up to 2000W)
Solar array
MPP-voltage
[V]
Solar array
MPP-current
[A]
Power loss
in PV cables
α(%)
Length 2x5 meter Length 2x10 meter
Length 2x20
meter
mm2AWG mm2AWG mm2AWG
36
Max 50A
1
35 2 Not recommended
Not
recommended
54 37 1 16 5 25 3
Not
recommended
72 28 0,75 10 7 25 3 35 2
90 22 0,5 10 7 25 3 35 2
108 19 0,5 6 10 16 5 25 3
The voltage on the PV input should never exceed 150V under any condition.
The charger will be permanently damaged if the input voltage is too high.
Cable strain relief must be provided, close to PV and battery connectors

8
48V system (solar array up to 4000W)
Solar array
MPP-voltage
[V]
Solar array
MPP-current
[A]
Power loss
in PV cables
α(%)
Length 2x5 meter Length 2x10 meter
Length 2x20
meter
mm2AWG mm2AWG mm2AWG
72 Max 50A 1 16 5 35 2
Not
recommended
90 44 1 16 5 25 3 35 2
108 37 0,75 10 7 16 5 35 2
Note 1: highlighted cable cross sections: minimum cross section due to thermal limit.
Note 2: please consult local regulations regarding maximum allowed current carrying capacity of cables.
Table 2: PV cable cross section and power loss
3.4 Optional connections
3.4.1 Voltage Sense
For compensating possible cable losses during charging, two sense wires can be connected
to measure voltage directly on the battery. Use wire with a cross-section of 0,75mm² and
insert a 0,1 Amp fuse close to the battery.
During battery charging, the charger will compensate the voltage drop over the DC cables
up to a maximum of 1 Volt (i.e. 1V over the positive connection and 1V over the negative
connection). If the voltage drop threatens to become larger than 1V, the charging current is
limited in such a way that the voltage drop remains limited to 1V.
The warning triangle on the LCD will blink if the voltage drop reaches 1 Volt
3.4.2 Temperature Sensor (see figure 1)
The temperature sensor supplied with the product may be used for temperature-
compensated charging. The sensor is isolated and must be mounted on the battery minus
pole.
3.4.3 CAN bus interface
The charger is equipped with two CAN bus RJ45 sockets.
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.
To prevent ground-loops, the charge controller has an internal 33 Ohm resistor between
CAN-GND and the battery minus output of the charge controller.
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.
The CAN bus on this charger is not galvanically isolated. The CAN bus is
referenced to the minus battery connection.

9
EN NL FR DE ES SE Appendix
3.4.4 Programmable relay
The charge controller is equipped with a potential-free Single Pole Double Throw relay
that by default is programmed according to option 3 below.
The relay can be programmed to energize on one of the following events:
option 1: when the maximum voltage on the PV input is exceeded
option 2: when the temperature protection becomes active
option 3: when the battery voltage becomes too low (adjustable low voltage limit)
option 4: when the charger is in equalisation mode
option 5: when the charger is in error mode
option 6: when the charger temperature drops below -20°C (-40°F)
option 7: when the battery voltage becomes too high (adjustable high voltage limit)
option 8: when the charger is in float mode.
option 9: when the solar panel is irradiated (day/night indication).
3.4.5 Synchronised parallel operation
Several charge contollers can be synchronised with the CAN interface. This is achieved
by simply interconnecting the chargers with RJ45 UTP cables (bus terminators needed,
see section 3.4.3).
The paralleled charge contollers 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 using remote sensors (voltage and/or temperature), the remote sensor must
be connected to only one of the paralleled charge controllers. All other contollers will
share the information via the CAN interface.
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.
3.4.6 Charge process controlled by a Multi or Quattro inverter/charger: HUB-1
operation
To build a Hub-1 off-grid or grid-interactive self-consumption system the charge controller(s)
must be connected to a Multi or a Quattro using the VE.BUS to VE.CAN interface. The
Micropressor of the Multi or Quattro will then control the charge process (HUB-1 assistant
software needed). The display on the controller will show ‘HUB-1’.
Please see Support & Downloads / software on our website for details about the required
software.

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4. POWERING UP
4.1 Connecting the battery
Close the connection to the battery, but DO NOT connect the solar array.
All the icons of the display will now light up:
This is followed by the software version:
In this case the Software-version is 2.03
After the software-version has been displayed, the
charger will start the system voltage recognition
phase.
The LCD-screen displays two values:
Left: actual measured battery voltage.
Right: system (= nominal battery) voltage (12/24/36
or 48V), blinking during the battery recognition
phase.
In some instances the charge controller might not reflect the correct system voltage (e. g. if
the battery is deeply discharged and the actual battery voltage is far below the nominal
voltage). In that case the system voltage can be adjusted manually, see section 4.2.
If the nominal battery voltage shown is correct, press the SETUP button to accept.
Alternatively, the battery voltage shown becomes final automatically after connecting the PV
array, when PV current starts flowing.
4.2 Adjusting system voltage (adjust only if the system voltage as displayed is
wrong)
a. Press SETUP during 3 seconds: the “Menu” icon will light up.
b. Press the "-" or "+" button several times until the
screen shows “  ”.
c. Press SELECT: “” or the system voltage will
blink.
d. Use the "-" or "+" button to decrease or increase
system voltage.
e. Press SELECT to confirm the change, the value will stop blinking, and the change is
made final.
f. Press SETUP during 3 seconds: the display is back in normal mode and the “Menu”
icon will disappear.
Note: a 36V system will not be detected automatically and must be set with help of the
above mentioned procedure.

11
EN NL FR DE ES SE Appendix
4.3 Charge algorithm
4.3.1. Overview
Several preset charge curves and one user adjustable curve are available, see table
below.
The DEFAULT-setting is algorithm nr 2.
Make sure the charge algorithm is correct for the battery-type that must be
charged. If necessary, contact the battery supplier for the appropriate
battery-settings. Wrong battery settings can cause serious damage to the
batteries.
Algorithm
number Description
Absorption
and max.
absorption
time
Float Equalisation
(Default: off) Temperature compensation
V / h V maxV@% of Inom mV/°C
1
Gel Victron long life (OPzV)
Gel exide A600 (OPzV)
Gel MK
56,4V / 8h 55,2V 63,6V@8% max 1h
-65 mV/°C
(-2,7 mV/°C per
cell)
2
Default setting
Gel Victron deep discharge
Gel Exide A200
AGM Victron deep discharge
Stationary tubular plate (OPzS)
Rolls Marine (flooded)
Rolls Solar (flooded)
57,6V / 8h 55,2V 64,8V@8% max 1h -65 mV/°C
3 AGM spiral cell
Rolls AGM 58,8V / 8h 55,2V 66,0V@8% max 1h -65 mV/°C
4
PzS tubular plate traction
batteries or
OPzS batteries in cyclic mode 1
56,4V / 4h 55,2V 63,6V@25% max
4h -65 mV/°C
5 PzS tubular plate traction batteries or
OPzS batteries in cyclic mode 2 57,6V / 4h 55,2V 64,8V@25% max
4h -65 mV/°C
6 PzS tubular plate traction batteries or
OPzS batteries in cyclic mode 3 60,0V / 4h 55,2V 67,2V@25% max
4h -65 mV/°C
7 Lithium Iron Phosphate
(LiFePo4) batteries 56,8V / 2h 53,4V n. a. 0
8 (USr) Adjustable
(default 57,6V)
Adjustable
(default
55,2V)
Adjustable
(default Vabs.+
7,2V)
@25% max 4hrs
Adjustable
(default -65
mV/°C)
Table 3: Charge algorithm options. All voltages shown are for a 48V system.

12
4.3.2. Procedure for choosing a preset charge algorithm
a. Press SETUP during 3 seconds: the “Menu” icon will light up.
b. Press the "-" or "+" button several times until the screen
shows “  ”.
c. Press SELECT: the algorithm number will now blink (a
number with superscript “type”).
d. Use the "-" or "+" button to choose the desired
algorithm.
e. Press SELECT to confirm the change, the value will stop blinking, and the change is
made final.
f. To return to normal mode, press SETUP during 3 seconds.
4.3.3. User adjustable charge algorithm
a. Proceed as described in the previous section, and
select algorithm number 8 (user defined)
b. Press the "-" or "+" button to select the parameter that
must be changed
(“  ”,“  ” or
“  ”).
c. Press SELECT: the voltage will now blink.
d. Use the "-" or "+" button to chose the desired voltage.
e. Press SELECT to confirm the change, the value will stop blinking, and the change is
made final. With the "-" or "+" button it is now possible to scroll to another parameter
that needs change.
f. To return to normal mode, press SETUP during 3 seconds.
4.3.4. Other charge algorithm related settings
Absorption time: default 6 hours
Temperature compensation: default -2,7 mV/°C per cell (-65 mV/°C for a 48V lead-acid battery)
Equalisation:
Some manufacturers of VRLA (Valve Regulated Lead-Acid: i.e. Gel or AGM) batteries
recommend a short equalization period, most do not. Most manufacturers of flooded
batteries recommend periodic equalization.
Please see table 5 for more adjustable parameters.
Note about service life of lead-acid batteries
Flat plate VRLA batteries (i. e. all 6V and 12V VRLA batteries) as well as flat plate flooded
batteries for automotive application deteriorate quickly when discharged by more than 50%,
especially when left in discharged state for hours or days. We therefore recommend not to
discharge by more than 50% and recharge immediately after a deep discharge.
All lead acid batteries will deteriorate if not fully charged from time to time.
4.3.5. Battery charging information
The charge controller starts a new charge cycle every morning, when the sun starts shining.
The maximum duration of the absorption period is determined by the battery voltage
measured just before the solar charger starts up in the morning:
Battery voltage Vb (@start-up)
Absorption time multiplier
Maximum absorption times (default = 6h)
Vb < 47.6V
x 1
6h
47.6V < Vb < 48.8V
x 2/3
4h
48.8V < Vb < 50.4V
x 1/3
2h
Vb > 50.4V
x 1/6
1h

13
EN NL FR DE ES SE Appendix
If the absorption period is interrupted due to a cloud or due to a power hungry load, the
absorption process will resume when absorption voltage is reached again later on the
day, until the absorption period has been completed.
The absorption period also ends when the output current of the solar charger drops to
less than 2 Amps, not because of low solar array output but because the battery is fully
charged (tail current cut off).
This algorithm prevents over charge of the battery due to daily absorption charging
when the system operates without load or with a small load.
4.4 Connecting the solar array
After the correct charge algorithm has been selected, the controller is ready for use.
Other settings may be changed/entered before or after connecting the solar array.
Close the connection to the solar array.
If there is sufficient sunlight, the charger will automatically start charging the battery.
If, despite sufficient sunlight, the PV voltage reads 000V, please check the
polarity of the PV cable connection.
4.5 Remote on-off
The charge controller will switch on if:
a) A wire link is present over the REMOTE terminals (default factory wire setting).
b) The left-hand REMOTE terminal (marked as B+) is connected to the positive
terminal of the battery (12/24/36/48V). Use wire with a cross-section of 0,75mm²
and insert a 0,1 A fuse close to the battery.
c) A voltage source of 3-60V (with respect to the negative battery terminal) is
connected to the REMOTE B+ terminal.
In case a, the charge controller will switch off if the wire link is removed/interrupted.
In case of b or c, the charge controller will switch on if the voltage is > 5 V.
If the voltage is < 3 V, the charge controller will switch off.

14
5. MORE INFORMATION ABOUT THE LCD SCREENS
5.1 Scrolling through the LCD screens
The following information will be displayed if the "-" button is pressed (in order of
appearance):
Displayed info
Icons
Segments
Units
Battery charge current (1)
 .
A
Battery voltage (1)


.

V
Battery charge power
.
W
Battery temperature (2)

.

,

,

°C/°F
Charger temperature (2)
.,,
°C/°F
Panel current
.
A
Panel voltage
.
V
Panel power
.
W
Warning message (3)
 
Error message (3)


HUB-1 operation (3)

BMS operation (3)

Table 4: scrolling through the LCD screens
1) The system voltage is shown in the first two segments.
2) A valid temperature is shown, --- = no sensor information or Err = invalid sensor data.
3) 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.
5.2 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 table 5, 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
Yield total
 
 
Error 0 (most recent)
 
Error 1 (shown when available)
 
Error 2 (shown when available)
 
Error 3 (shown when available)
  
 .
V
Panel voltage maximum
  
 .
V
Battery voltage maximum

 .
Day kWh
Daily yield
  
 
.

Day V
Daily battery voltage maximum

15
EN NL FR DE ES SE Appendix
Scrolling text
Icons (1)
Segments
Units
Displayed info
  
 .
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 in bulk (minutes)
 
 
Day
Daily time in absorption (minutes)
 
 
Day
Daily time in float (minutes)
 
 
Day W
Daily power maximum
  
 .
Day A
Daily battery current maximum
  
 .
Day V
Daily panel voltage maximum
Table 5: scrolling through the History LCD screens
1) When the charger is active the icons Bulk/Abs/Float will be overruled by the charge
process.
5.3 SETUP MENU parameter details
Scrolling text
Icons
Segments
Units
Function or parameter
   
,

On/off switch
    .-

.

A
Maximum charge
current (bulk current)
  
,-
V
System voltage
  

,-

Type
Charge algorithm
  
.-.-.
V
Absorption voltage (2)
  
.-.-.
V
Float voltage (2)
  
.-.-.
V
Equalisation voltage (2)
  

,
Automatic equalisation
(3)
  
,
Manual equalisation
  
. ,--
Relay function
     .-

.

-.
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
     

-
Releay minimum closed
time (minutes)
   .-

.

-..
°C mV
Battery temperature
compensation per cell
(2)
   
,

h
Bulktime protection
   
.-..
h
Absorption time
  
 
,
BMS present
   -

-
The intensity of the
backlight
    ,,

Backlight automatic turn
off after 60s (5)

16
Scrolling text
Icons
Segments
Units
Function or parameter
  
--
Text scroll speed
   
 -
CAN device instance
  
.
Software version
   
System reset to default
settings (1)
  

History data reset (4)
  
 ,
Lock settings
  
,
Temperature unit °C/°F
Table 6: Setup menu parameter details
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.
c. Table 6 above lists in order of appearance all parameters which can be adjusted when
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.
1) 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).
2).These values can ONLY be changed for the battery number 8 (User-defined battery). The
values in the table are for a 48V-battery.
3) Automatic equalisation can be set to “OFF” (default) or a number between 1 (every day)
and 250 (once every 250 days). When Automatic equalisation is active, the absorption
charge will be followed by a voltage limited constant current period (see table 3). The text
“equalize” will be on.
The current is limited to 8% of the bulk current for all VRLA (Gel or AGM) batteries and
some flooded batteries, and to 25% of the bulk current for all tubular plate batteries. The
bulk current is the rated charger current (70A) unless a lower maximum current setting has
been chosen.
If, as recommended by most battery manufacturers, the bulk charge current does not
exceed 20A per 100Ah battery capacity (i.e. 350Ah for a 70A charger), the 8% limit
translates to max 1,6A per 100Ah battery capacity, and the 25% limit translates to max 5A
per 100Ah capacity.
In case of all VRLA batteries and some flooded batteries (algorithm number 1, 2 or 3)
automatic equalization ends when the voltage limit maxV has been reached, or after
t = (absorption time)/8, whichever comes first.
For all tubular plate batteries automatic equalization ends after t = (absorption time)/2.
When automatic equalisation is not completely finished within one day, it will not resume the
next day, the next equalisation session will take place as determined by the day interval as
programmed in the setup menu.

17
EN NL FR DE ES SE Appendix
4) 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.
5) 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.
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.

18
6. MANUAL EQUALISATION
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.
To enable equalisation, enter the setup-menu and press the "-" or "+" button until the text
“  ” is visible on the menu. Press SELECT: the text “” will
blink, press SELECT again to start equalisation.
To terminate the equalisation mode prematurely, enter the setup-menu and press the "-" or
"+" button until the text “  ” is visible on the menu. Press SELECT:
the text “” will blink, press SELECT again to stop equalisation.
Current and voltage limits are identical to the automatic equalise function (see section 4.3).
The equalise duration is however limited to max. 1h when triggered manually.
7. TROUBLESHOOTING
With the procedures below, most errors can be quickly identified. If an error cannot be
resolved, please refer to your Victron Energy supplier.
Error nr. on
LCD display
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.
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 -10 0C (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 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 air
inlet and outlet holes of the charger cabinet.
Err 1
Battery temperature
too high (> 500C)
This error will auto-reset after temperature has dropped.
This error can also be due to a bad/corroded battery- pole to which this
sensor is screwed on to, or a faulty sensor.
If error persists and charging does not resume, replace sensor, and
power-up by entering and leaving the setup menu..
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 3
Suspected wrong
connection during
power-up.
Remote Tsense+
connected to BAT+
Check if the T-sense connector is properly connected to a remote
temperature sensor.
This error will auto-reset after proper connection.
Err 4
Suspected wrong
connection during
power-up.
Remote Tsense+
connected to BAT-
Check if the T-sense connector is properly connected to a remote
temperature sensor.
This error will auto-reset after proper connection.

19
EN NL FR DE ES SE Appendix
Error nr. on
LCD display
Problem
Cause / Solution
Err 5
Remote temperature
sensor failure
This error will not auto-reset.
1. Scroll through the LCD-screens to find the battery temperature.
2. If the LCD indicates an unrealistic temperature value or "---", replace
the remote sensor.
3. Press and hold the SETUP-button for 2 seconds to enter the SETUP-
MENU.
4. Exit the SETUP-MENU by pressing SETUP for 2 seconds.
5. Check if the battery temperature is now valid.
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 air
inlet and outlet holes of the charger cabinet.
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.
Err 22
Internal temperature
sensor short
The charge controller is probably faulty.
This error will not auto-reset.
Err 23
Internal temperature
sensor connection lost
Disconnect all power-sources from the charger, and open the front cover.
Check if the white connector on the control-pcb (at the left of the LCD) is
properly connected.
If connected properly, close front cover and power-up again.
If the error persists the charge controller is probably faulty.
This error will auto-reset.
Err 26
Terminal overheated
Power terminals overheated, check wiring and fasten bolts if possible.
This error will not 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 50A. 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.
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 CAN bus cabling. 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 to
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.

20
8. SPECIFICATIONS
BlueSolar charge controller MPPT 150/70
Nominal battery voltage
12 / 24 / 36 / 48V Auto Select
Rated charge current
70A @ 40°C (104°F)
Maximum solar array input power
12V: 1000W / 24V: 2000W / 36V: 3000W / 48V: 4000W
Maximum PV open circuit voltage
150V absolute maximum coldest conditions
145V start-up and operating maximum
Minimum PV voltage
Battery voltage plus 7 Volt to start
Battery voltage plus 2 Volt operating
Standby power consumption
12V: 0,55W / 24V: 0,75W / 36V: 0,90W / 48V: 1,00W
Efficiency at full load 12V: 95% / 24V: 96,5% / 36V: 97% / 48V: 97,5%
Absorption charge
14.4 / 28.8 / 43.2 / 57.6V
Float charge
13.7 / 27.4 / 41.1 / 54.8V
Equalization charge 15.0 / 30.0 / 45 / 60V
Remote battery temperature sensor
Yes
Default temperature compensation setting
-2,7mV/°C per 2V battery cell
Remote on-off
Yes
Programmable relay
DPST AC rating: 240VAC/4A
DC rating: 4A up to 35VDC, 1A up to 60VDC
CAN bus communication port
Two RJ45 connectors, NMEA2000 protocol
Parallel operation
Yes, through VE.Can. Max 25 products in parallel
Operating temperature -40°C to 60°C with output current derating above 40°C
Cooling
Fan assisted
Humidity (non condensing) Max. 95%
Maximum altitude
2000 m
Environmental condition
Indoor, unconditioned
Pollution degree
PD3
Terminal size
35mm² / AWG2
Material & color
Aluminium, blue RAL 5012
Protection class
IP20
Weight
4,2 kg
Dimensions (h x w x d)
350 x 160 x 135 mm
Mounting Vertical wall mount Indoor only
Safety
IEC 62109-1
EMC
EN 61000-6-1, EN 61000-6-3