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MASS COMBI PRO
12/3000-150, 24/3500-100
MULTI PURPOSE CHARGER INVERTER
USER AND INSTALLATION MANUAL
10000010915/02
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
OVERVIEW MASS COMBI PRO
Figure 0-1: Overview of the Mass Combi Pro
1. Display with front switch
6. AC output 1 (“OUT-1”)
11. Sync connector (2x)
2. Main battery negative
7. AC output 2 (“OUT-2”) (switched)
12. Temperature sensor connector
3. Main battery positive
8. DIP switch units (2x8)
13. MasterBus connector (2x)
4. Mains AC input terminal (“MAINS”)
9. Fan (3x)
5. Generator AC input terminal (“GEN”)
10. Ground stud
1
2
3
4
5
6
7
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TABLE OF CONTENTS
OVERVIEW MASS COMBI PRO ..................................... 2
1 GENERAL INFORMATION ........................................ 4
1.1 Product description ............................................. 4
1.2 Use of this manual .............................................. 4
1.3 Validity of this manual ......................................... 4
1.4 Liability ................................................................ 4
1.5 Warranty ............................................................. 4
1.6 Disclaimer ........................................................... 4
1.7 Changes to the Mass Combi Pro ........................ 4
1.8 Identification label ............................................... 4
1.9 Correct disposal of this product .......................... 4
2 SAFETY GUIDELINES AND WARNINGS.................. 5
2.1 Warnings and symbols ....................................... 5
2.2 Use for intended purpose ................................... 5
2.3 Organizational measures .................................... 5
2.4 Warning of special dangers ................................ 5
2.5 General safety and installation precautions ........ 5
2.6 Warning regarding life support applications ........ 6
2.7 Warning regarding the use of batteries ............... 6
3 HOW IT WORKS ........................................................ 7
3.1 Principle .............................................................. 7
3.2 Battery charger ................................................... 7
3.3 Inverter ............................................................... 8
3.4 Operation modes ................................................ 8
4 OPERATION ............................................................. 11
4.1 LED indicators .................................................. 11
4.2 Protections ........................................................ 12
4.3 Operation policies .............................................. 12
4.4 Maintenance ...................................................... 13
4.5 Daily use, MasterBus monitoring ....................... 13
5 INSTALLATION ........................................................ 14
5.1 Unpacking ......................................................... 14
5.2 Environment ...................................................... 14
5.3 Wiring ................................................................ 14
5.4 Things you need ................................................ 15
5.5 Removal of the front lid...................................... 15
5.6 Mounting the cabinet to a surface ..................... 16
5.7 Wiring instructions ............................................. 16
5.8 Installation overview .......................................... 17
5.9 Setting up a MasterBus network ........................ 18
5.10 How to set up a MasterBus network .................. 18
6 CONFIGURATION..................................................... 19
6.1 Configuration via DIP-switches .......................... 19
6.2 MasterBus configuration .................................... 20
7 COMMISSIONING, DECOMMISSIONING ................ 23
7.1 Commissioning .................................................. 23
7.2 Decommissioning .............................................. 23
7.3 Trouble shooting ................................................ 23
8 TECHNICAL DATA ................................................... 25
8.1 Specifications .................................................... 25
8.2 Dimensions ........................................................ 27
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
1 GENERAL INFORMATION
1.1 Product description
The Mass Combi Pro is a multifunctional charger inverter. It
passes through power from an external AC source (e.g. a
generator or shore power connection) to your AC loads and
charges your main batteries.
1.2 Use of this manual
This manual serves as a guideline for the safe and
effective use and installation of the Mass Combi Pro, also
called Combi Pro further in this manual:
For the installer this manual gives directions for the
installation, operation and commissioning.
For the end user this manual gives directions for the
operation, maintenance and possible correction of
minor malfunctions.
Every person who works with the device should be
familiar with the contents of this manual, and must
carefully follow the instructions contained herein.
Store the manual in an accessible place.
1.3 Validity of this manual
This manual is valid for the following models:
Part no
Model
38513000
Mass Combi Pro 12/3000-150
38523500
Mass Combi Pro 24/3500-100
All the specifications, provisions and instructions contained
in this manual apply solely to the Mastervolt-delivered
standard version of a single Mass Combi Pro.
1.4 Liability
Mastervolt can accept no liability for:
Consequential damage resulting from the use of the
Mass Combi Pro.
Possible errors in the included manual and the
consequences of these.
Use that is inconsistent with the purpose of the
product.
1.5 Warranty
Mastervolt assures the product warranty of the Mass
Combi Pro during two years after purchase, on the
condition that the product is installed and used according to
the instructions in this manual.
Installation or use not according to these instructions may
result in under performance, damage or failure of the
product and may void this warranty. The warranty is limited
to the cost of repair and/or replacement of the product.
Costs of labor or shipping are not covered by this warranty.
1.6 Disclaimer
Our products are subject to continual development and
improvement. Therefore, additions or modifications to the
products may cause changes to the technical data and
functional specifications. No rights can be derived from this
document. Please consult our most current Terms &
Conditions of Sale.
1.7 Changes to the Mass Combi Pro
Changes to the Mass Combi Pro may be carried out only
after obtaining the written permission of Mastervolt. This is
not applicable for DIP-switches which are used for user
settings.
1.8 Identification label
Figure 1-1: Example of an identification label
The identification label is positioned at the right side of the
Mass Combi Pro, see figure 1-1.
CAUTION!
Never remove the identification
label.
1.9 Correct disposal of this product
This product is designed and
manufactured with high quality materials
and components, which can be recycled
and reused. When this crossed-out
wheeled bin symbol is attached to a
product, it means the product is covered
by the European Directive 2012/19/EU.
Please be informed about the local separate collection
system for electrical and electronic products.
Please act according to your local rules and do not dispose
of your old products with your normal household waste.
The correct disposal of your old product will help prevent
potential negative consequences to the environment and
human health.
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2 SAFETY GUIDELINES AND WARNINGS
2.1 Warnings and symbols
Safety instructions and warnings are marked in this manual
and on the product by the following pictograms:
A procedure, circumstance, etc. which
deserves extra attention.
CAUTION!
Special information, commands and
prohibitions in order to prevent damage.
WARNING
A WARNING refers to possible injury to the
user or installer or significant material damage
to the Mass Combi Pro if the installer / user
does not (carefully) follow the stated
procedures.
Read this manual before installation and use
This product has been declared conform the
EC directives and standards.
Degree of protection: IP23. The product is
protected against touch by fingers and water
spray < 60 degrees from vertical.
Safety class 1. This product must be provided
with an equipment grounding conductor to the
AC-output ground terminal
2.2 Use for intended purpose
1 The Mass Combi Pro is constructed as per the
applicable safety-technical guidelines.
2 Use the Mass Combi Pro only:
for the charging of batteries and the supply of
loads attached to these batteries, in permanent
systems;
for the conversion of battery DC voltage to AC
voltage;
when connected to a dedicated double pole circuit
breaker and RCD;
with fuses, protecting the Mass Combi Pro AC and
DC wiring;
in a technically correct condition;
in a closed, well-ventilated room, protected
against rain, moist, dust and condensation;
after observing the instructions in the user’s
manual.
WARNING
NEVER connect shore power to the generator
input. This may result in an electric shock!
WARNING
Never use the Mass Combi Pro in situations
where there is danger of gas or dust explosion
or potentially flammable products!
3 Use of the Mass Combi Pro other than mentioned in
point 2 is considered to be inconsistent with the
intended purpose. Mastervolt does not hold itself liable
for any damage resulting from the above.
2.3 Organizational measures
The user must always:
have access to the user’s manual;
be familiar with the contents of this manual. This
applies in particular to Chapter 2 “Safety Guidelines
and Measures”.
2.4 Warning of special dangers
1 If the Mass Combi Pro is switched off during
maintenance and/or repair activities, it should be
secured against unexpected and unintentional
switching on:
Remove the AC supply.
Remove the connection to the batteries.
Be sure that others cannot reverse the measures
taken.
2 If maintenance and repairs are required, use only
original spare parts.
2.5 General safety and installation precautions
Do not expose the Mass Combi Pro to rain, snow,
spray, moisture, excessive pollution and condensing
circumstances. To reduce risk of fire hazard, do not
cover or obstruct the ventilation openings. Do not install
the Mass Combi Pro in a non-ventilated area,
overheating results.
The Mass Combi Pro must be provided with an
equipment grounding conductor to the AC-input ground
terminal. Grounding and all other wiring must comply
with local rules and regulations.
In case of fire, you must use a fire extinguisher which is
appropriate for electrical equipment.
Short circuiting or reversing polarity will lead to serious
damage to batteries, Mass Combi Pro and wiring.
Fuses between batteries and Mass Combi Pro cannot
prevent damage caused by reversed polarity and
warranty will be void.
Protect all DC wiring with a proper fuse, according to
the guidelines in this manual.
Connection and protection must be done in accordance
with local standards.
Do not work on the Mass Combi Pro or system if it is
still connected to a power source. Only allow changes
in your electrical system to be carried out by qualified
electricians.
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Check the wiring and connections at least once a year.
Defects such as loose connections, burnt cables etc.
must be corrected immediately.
Do not touch the equipment when wet or with clammy
hands.
Not only the batteries, but the Mass Combi Pro as well
can become a projectile if your vehicle is involved in an
accident! Ensure adequate and secure mounting and
always use suitable transportation handling equipment.
Except for the connection compartment, see section
5.5, the cabinet of the Mass Combi Pro must not be
opened. There are no serviceable parts inside the
cabinet. Only qualified, allowed and trained electricians
are authorized to open the connection compartment.
2.6 Warning regarding life support applications
The Mass Combi Pro products are not sold for applications
in any medical equipment intended for use as a component
of any life support system unless a specific written
agreement pertaining to such intended use is executed
between the manufacturer and Mastervolt. Such
agreement will require the equipment manufacturer either
to contract additional reliability testing of the Mass Combi
Pro parts and/or to commit to undertake such testing as a
part of the manufacturing process. In addition the
manufacturer must agree to indemnify and not hold
Mastervolt responsible for any claims arising from using
Mass Combi Pro parts for life support equipment.
2.7 Warning regarding the use of batteries
Excessive battery discharge and/or high charging voltages
can cause serious damage to batteries. Do not exceed the
recommended limits of your batteries. Avoid short circuiting
batteries, as this may result in explosion and fire hazard.
Installation of the batteries and adjustments of the Mass
Combi Pro should only be undertaken by authorised
personnel!
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3 HOW IT WORKS
The Mass Combi Pro is a multifunctional charger inverter. It
combines an inverter, a battery charger and an AC transfer
switch.
3.1 Principle
Figure 3-1: Working principle of the Mass Combi Pro
3.1.1 User interface (1)
The Mass Combi Pro user interface consists of a front
switch with status LEDS and MasterBus communication.
3.1.2 AC transfer switch (2)
This part of the Mass Combi Pro regulates the AC energy
flow through the device. The generator (“GEN”) and mains
(“MAINS”) input are switched, as is AC output 2 (“OUT-2”).
All AC is connected to the inverter (3). If the MAINS plug is
disconnected and the Generator is not running, the inverter
takes over using battery power to provide AC power.
3.1.3 Inverter/ Main charger (3)
This part converts the AC power to DC for charging of the
main battery and it inverts the DC power from the battery to
supply AC to Output 1 and 2. (“OUT-1” and “OUT-2”).
3.2 Battery charger
The built-in battery charger is electronically controlled. It is
designed for optimal recharging of lead acid (flooded, gel,
AGM) and Li-ion batteries. Battery charging via AC or Solar
input is accomplished with Mastervolt’s 3-Step+ charging
algorithm. With an external AC source connected, the
Mass Combi Pro charger also serves the functions of an
AC to DC converter to supply DC loads which are
connected to the batteries. Simple, automatic operation is
enabled by the microprocessor that is the brain of the
inverter/charger combination.
Figure 3-2: 3-Step+ charge system
3.2.1 3-Step+ charge system
See figure 3-2. The first step of the 3-Step+ charge system
is the BULK phase, in which the output current of the
charger is 100%, and the greater part of the battery
capacity is charged rapidly. The current charges the
batteries and gradually the voltage rises to the absorption
voltage, refer to the specifications. The duration of this
phase depends on the ratio of battery capacity to charger
current, the loads connected and the degree to which the
batteries were discharged to begin with.
The bulk phase is followed by the absorption phase.
Absorption charging ends when the battery is completely
full. Battery voltage remains constant throughout this stage
and the charge current decreases during charging of the
battery. With flooded batteries this stage lasts some four
hours, with gel and AGM around three. Once the battery is
100% full or when the maximum absorption timer has
passed, the charger automatically switches over to the float
phase.
During the float phase the Mass Combi Pro switches to
Float voltage, refer to the specifications, and stabilises this
voltage to maintain the batteries in an optimum condition.
Connected DC-loads are powered directly by the charger.
If the load is higher than charger capacity, the required
additional power comes from the battery, which will be
progressively discharged until the charger automatically
switches back to the bulk phase. Once consumption
decreases, the charger goes back to normal operation of
the 3-Step+ charge system.
As the Mass Combi Pro is equipped with a 3-Step+ charge
system, the batteries can also remain connected to the
Mass Combi Pro in winter. One hour every 12 days the
charger automatically switches to the Bulk phase to keep
the battery working properly and prolong its life span. The
3
2
1
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3-Step+ charge system is also safe for all the connected
equipment.
3.2.2 Temperature compensated charging
The Mass Combi Pro is delivered with a battery
temperature sensor. By installing this battery temperature
sensor (for Lead Acid batteries only) the charge voltages
are automatically adapted for deviating temperatures.
When the battery temperature is low, the charge voltage
increases. On the other hand, when the battery
temperature is high, the charge voltage is decreased.
Overcharge and gassing are prevented this way. This will
extend the life of your batteries.
Temperature compensated charging cannot
prevent the batteries from overcharging
situations.
3.2.3 Silent mode
When the Mass Combi Pro is in operation, the cooling fans
produce audible noise. In silent mode the noise level is
reduced. As a result:
the charge current may be limited;
the charging time may increase.
3.3 Inverter
3.3.1 General
The inverter provides voltage and frequency regulated AC
power from a battery bank. Fast acting electronic circuits
protect the inverter against extreme overloads, low and
high battery voltage and overheating of the inverter.
A large momentary surge power is available for inductive
loads, such as electric motors.
3.3.2 Energy saving mode (selectable)
In the inverter mode the Mass Combi Pro has a built-in
automatic energy saving feature that reduces battery
power consumption when no load is present on the
outputs. Response from idle is instant. In most cases the
operation is not noticeable. The energy saving mode can
be set by means of MasterBus or dipswitch A4, refer to
chapter 6, Configuration.
The Mass Combi Pro scans the AC outputs with pulses of
230 V every 2½ seconds. When it detects a load that is
larger than 50 W (adjustable), it switches On the inverter
automatically.
Small loads such as clocks in VCR’s or micro
waves are most likely not to work in this mode.
3.4 Operation modes
The Mass Combi Pro is not just a combination of an
inverter and a battery charger. Many additional features
help to increase the total available AC power. In the next
sections, nine different main operation modes are
described. Most of these modes can be combined, refer to
section 3.4.10. You can enable these modes by means of
front switch, DIP switches or the MasterBus user interface.
All modes are enabled by default except for the Gen/Mains
supporting mode as there are regulations in some
countries that do not allow this. After enabling by the user,
becoming “active“ of a mode is determined by the Mass
Combi Pro itself based on AC and DC power availability,
battery state of charge and configuration (Chapter 6,
Configuration).
3.4.1 Inverting mode
See figure 3-3. When there is no external AC power
available, the inverter of the Mass Combi Ultra provides AC
power on the AC outputs.
Figure 3-3: Inverting mode
3.4.2 Charging mode
See figure 3-4 and 3-5. When external AC power comes
available on the Mains- or Gen input, the main battery will
be charged and the AC outputs are supplied by the
external power.
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Figure 3-4: AC power from Generator input
Figure 3-5: AC power from Mains input
3.4.3 Output 1 and 2
See figure 3-6. The Mass Combi ultra has two AC-outputs.
AC-power is always available on output 1 and this is the
ideal output for loads that need continuous AC-power.
Output 2 is only available when external AC power comes
available on the Mains- and/or Gen input. Output 2 policy is
configurable by the dipswitches locally on the Mass Combi
Ultra or a MasterBus monitoring device. (See chapter
4.3.2).
Figure 3-6: Out-1 and Out-2
3.4.4 Power sharing mode
See figure 3-7. If the available power at the AC-input is
limited, and the load connected to the AC output increases,
the external AC circuit breaker may trip if nothing is done.
To avoid this, the Mass Combi Ultra can automatically
reduce the battery charger output, and thus the AC power
consumption. This Power sharing feature constantly
senses the incoming AC current which is used to supply
both the battery charger and the appliances connected to
the AC outputs.
The Power Sharing level should be set to match the value
of the external circuit breaker, which protects the incoming
AC power. For example, when the external AC power is
limited by a 6 A fuse, the Power Sharing level must be set
to 6 A. When the total connected AC load reaches the
level of the Power Sharing setting (6 A), there will be no
power left over to charge the battery. This means that the
charge current of the Mass Combi will be reduced to 0 A.
The Power Sharing level can be adjusted by means of the
DIP-switches locally on the Mass Combi Ultra. However,
we recommend the use optional remote control, like the
MasterView Easy.
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Figure 3-7: Power Sharing level is set to a 6 A while the AC
outputs consume a total of 4 Amps. This means that 6 – 4
= 2 A is left over for charging.
3.4.5 Gen-/Mains support
See figure 3-8. If the demand for AC power is higher than
the available power at the AC–input, the external AC circuit
breaker may trip if nothing is done. This problem can be
solved by the Generator / mains support function. With the
Generator / mains support mode enabled, the inverter will
operate in parallel with the external AC power source. This
means that energy from the batteries is added to the ACoutput only.
Under no circumstances AC power from the inverter can be
fed back into the AC grid. Please mind that several
countries maintain different regulations with regard to ACsources operating in parallel with the AC-grid. This may
mean that in some situations the use of the Generator /
Mains support function is not allowed. Please acquaint
yourself with local regulations on this issue. Never use the
Generator / Mains support mode if this is not allowed!
Figure 3-8: Example: The AC-input is limited to 6 A. This is
not enough to supply the total load (4 + 5 A = 9 A)
connected to the AC outputs. The inverter will supply the
remaining
9 – 6 = 3 A.
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4 OPERATION
4.1 LED indicators
See figure 4-1. The operation of the Mass Combi Pro is
displayed by means of LED indicators at the front side of
the housing. If the Mass Combi Pro is activated and as
long as none of the red indicators are illuminated, no failure
is detected and the unit is operating normally.
4.1.1 Generator input LED
See figure 4-1 item 1. The arrow is illuminated if AC power
comes from the generator.
On: generator input.
Off: no generator input.
Blinking: synchronizing.
Blinking fast: AC input out of range.
4.1.2 Mains input LED
See figure 4-1 item 2. The arrow is illuminated if AC power
comes from the mains.
On: mains input.
Off: no mains input.
Blinking: synchronizing.
Blinking fast: AC input out of range.
4.1.3 Power bar LEDs
See figure 4-1 item 3. These LEDs have a double function,
depending on the mode the Mass Combi Pro is in.
During charging: charge current (20% of nominal charge
current per LED).
During inverting: 20% of nominal inverter power per LED).
If the upper LED illuminates red, the inverter is in overload.
4.1.4 AC Output-1 LED
See figure 4-1 item 4. The illuminated arrow indicates that
AC Output-1 is powered.
4.1.5 AC Output-2 LED
See figure 4-1 item 5. The illuminated arrow indicates that
switched AC Output-2 is powered.
4.1.6 Charge bar LEDs
See figure 4-1 item 6.
During charging the blinking LED’s indicate the charge
phase of the 3-Step+ charge algorithm.
During inverting the LEDs give a rough estimation of
the battery voltage: the more LED’s are illuminated, the
higher the battery voltage.
4.1.7 Main switch
See figure 4-1 item 7. The only control on the Mass Combi
Pro itself is the main switch on the front of the unit. This
switch controls on, off and Inverter off (Charger only).
After switching on, expect a three till five second delay
before the unit is activated.
With the main switch in position “on“, the Combi Pro
inverter can also be switched off and on via MasterBus.
If AC power is available on the AC input and within the
specified limits, the Mass Combi Pro switches on in
Charger Mode and will start to charge the batteries. If the
AC power from the external AC-source is unavailable or
outside the specified limits, the unit switches on as an
inverter.
Move the main switch to the “off” position to switch off the
Mass Combi Pro.
If the main switch is set to the Inverter Off-position, the
Mass Combi Pro is only able to work as a charger. This
means that the inverter mode is disabled. This setting is
useful if you want to keep your batteries charged and
maintained in case you have left i.e. in the winter time.
1
2
4
5
3
6
7
1 Generator input LED,
section 4.1.2.
2 Mains input LED,
section 4.1.3.
3 Power bar LEDs,
section 4.1.4
4 AC Output-1 LED,
section 4.1.5.
5 AC Output-2 LED,
section 4.1.6.
6 Charge bar LEDs.
During charging:
charging state. 4.1.7
7 Main switch. It has two
positions: On (up),
and Off (down).
*
Figure 4-1: Front panel
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4.2 Protections
The Mass Combi Pro is protected against overload, short
circuit, overheating and under and over voltage. You can
detect failures from the front panel or from the MasterBus
control panel.
CAUTION!
The Mass Combi Pro is not protected against
reversing polarity of the DC-input, AC voltage on
the DC-input and extreme over voltage (>300
VAC ) on the AC-input or AC-outputs.
4.2.1 Output overload or short circuit
In case of overload or short circuit during inverter mode,
the Power bar top LED illuminates red and the output
voltage of the Mass Combi Pro is limited. Mass Combi Pro
shuts down if this overload or short circuit lasts over 5
seconds. The Mass Combi Pro will automatically restart
after shutdown. After 5 failed start attempts the Mass
Combi Pro shuts down permanently, the Power bar top
LED and the Charge bar bottom LED stay blinking red. You
can restart the Mass Combi Pro only by switching the unit
manually off and on with the main switch on the Mass
Combi Pro after the overload or short circuit is removed.
4.2.2 Overheating
In the event of overheating the Mass Combi Pro inverter
shuts down, the charger reduces charge current.
Overheating is most likely caused by:
heavy or non-resistive loads operating for a longer
period;
high ambient temperature;
disrupted air flow (dust or too little space).
As soon as the temperature drops below the factory default
threshold, the inverter is powered up automatically or the
charger resumes its charge current.
4.2.3 Under and over voltage
The AC-input of the Mass Combi Pro is, within limits,
protected against over and under voltage. See
specifications. If the AC-input voltage is out of operating
range, the Mass Combi Pro will switch to inverter mode,
disconnecting both AC inputs and it will switch back if the
AC-input voltage is within range again. The DC-input of the
Mass Combi is also protected against over and under
voltage. See specifications. The Mass Combi Pro switches
off if the DC-input voltage is out of range.
4.2.4 Dynamic DC input window
Figure 4-2: Dynamic DC input window
The Dynamic DC input window is used to switch off
depending on both the battery voltage and current. The
reason for this is that low current loads cause a small
voltage drop but they are responsible for severe battery
damage.
Shown in figure 4-2 is the graph for a 24 V lead acid
battery. The graph shows three lines:
(1) Low voltage switch on. Above this voltage the inverter
switches on.
(2) Low voltage switch off with delay. Below this line the
inverter switches off after a delay.
(3) Low voltage switch off without delay. Below this line
the inverter switches off without delay.
4.3 Operation policies
Via MasterBus configuration, the preferred behaviour of AC
in and outputs can be set.
4.3.1 AC input policy
Preference
Description
Mains preferent
Mains input is preferred
Gen preferent
Generator input is preferred
Max fuse preferent
AC source with highest fuse setting
Mains only
No generator
Generator only
No mains
4.3.2 AC Output-2 policy
Preference
Description
Events only
Operation manually
Generator input
Generator input only
Mains input
Mains input only
Gen/mains input
Generator or main input
Always on
Always connected to the loads
By default, AC power is only available on AC output 2 if
external power is available on the Main or Gen input.
See section 6.2, AC transfer, to change the operation
preferences of AC output 2.
U
% I
nom
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4.4 Maintenance
Checking all connections every 6 months is required.
Further, no specific maintenance is required. If necessary,
use a soft clean cloth to clean the Mass Combi Pro. Do not
use any liquids or corrosive substances, such as solvents,
alcohol, petrol or abrasive components.
4.5 Daily use, MasterBus monitoring
Below table shows the MasterBus Monitoring page. On this
page you can adjust the daily settings.
Value
Meaning
Default
Range
Groupitem
Index
General
Device state
The state of your Mass
Combi Pro
Standby; Inverting; Alarm; Charging;
Supporting; Overload; Low battery
1-1
16
Mains fuse
Mains fuse rating
25 A
1..30 A
1-2
19
Inverter
Option to switch Off the
inverter to prevent depleting
of your batteries.
On
On, Off
1-3
20
Mode
User mode
Initializing; On; Standby; Inverter off;
Charger off
1-4
60
AC in state
State of the AC input
No AC present, Generator, Mains,
Poor quality
1-5
4
AC out state
State of the AC output
No AC output, AC out1 only, AC
out1&2
1-6
5
Main charger
Main charger state
On; Off
1-7
58
Battery (DC)
Main charger
Main battery state of charger
Bulk; Absorption; Float; Standby;
Const. volt; Error
2-1
18
Main battery
Main battery voltage
0..16 V/ 0..32 V/ 0..64 V
2-2
6
Main battery
Main battery current (minus is
discharging)
-500..500 A
2-3
7
Battery temp
Main battery temperature
-25..50 °C, if not connected: ---
2-4
21
Shunt device
Selected shunt device for the
main battery
2-5
22
Battery SoC
Main battery state of charge
0..100 %
2-6
23
AC inputs
Mains
Mains voltage
0..300 V
4-1
8
Mains
Mains current
0..50 A
4-2
9
Mains
Mains power
0..10000 W
4-3
94
Generator
Generator voltage
0..300 V
4-4
95
Generator
Generator current
0..50 A
4-5
96
Generator
Generator power
0..20000 W
4-6
97
AC outputs
AC output 1
AC output 1 voltage
0..300 V
5-1
10
AC output 1
AC output 1 current
0..70 A
5-2
11
AC output 1
AC output 1 power
0..20000 W
5-3
98
AC output 2
AC output 2 voltage
0..300 V
5-5
99
AC output 2
AC output 2 current
0..70 A
5-5
100
AC output 2
AC output 2 power
0..20000 W
5-6
101
Page 14
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
5 INSTALLATION
During installation and commissioning of the Mass Combi
Pro, the Safety Guidelines & Measures are applicable at all
times. See chapter 2 of this manual.
5.1 Unpacking
In addition to the Mass Combi Pro the delivery includes:
a battery temperature sensor;
this user’s manual;
MasterBus terminating device.
After unpacking, check the contents for possible damage.
Do not use the product if it is damaged. If in doubt, contact
your supplier.
Check from the identification label (see section 1.6)
whether your Main battery voltage is the same as the DCinput voltage of the Mass Combi Pro (e.g. 24 V main
battery set for a 24 V input voltage). Also check that the AC
output voltage and output power of the Mass Combi Pro
complies with your system and loads.
5.2 Environment
Obey the following stipulations during installation:
The Mass Combi Pro is designed for indoor use only.
Ambient temperature: -25 ˚C to 60 ˚C, (power derating
above 40 ˚C).
Maximum usage/installation height: 2000 m.
Humidity: 0-95 % non-condensing.
Mount the Mass Combi Pro on a solid surface, with the
connecting cables downwards.
Make sure that the hot air produced during operation
can be discharged. The Mass Combi Pro must be
mounted in such a way that obstruction of the airflow
through the ventilation openings will be prevented.
No objects must be located within a distance of 10 cm /
4 inch around the Mass Combi Pro. Keep at least 15
cm / 6 inch free space below the Mass Combi Pro.
Do not locate the Mass Combi Pro in the same
compartment as the batteries.
Do not install the Mass Combi Pro straight above the
batteries because of possible corrosive fumes.
5.3 Wiring
The wiring is connected inside the connection
compartment. If necessary, the wiring can be fed from the
top to the bottom side of the cabinet along the back of the
cabinet.
Always use the strain reliefs to fix the wiring. Fix the phase
line wire to terminal L, the neutral wire to terminal N and
the ground wire to terminal PE, see figure 5-1.
Figure 5-1: AC terminal connections
WARNING
NEVER connect shore power to the generator
input. This may result in an electric shock!
5.3.1 AC-wiring
For a safe installation the correct wire cross section must
be applied. Don’t use a cross section that is smaller than
indicated. See table below to select the appropriate cross
section for the AC wiring:
AC-Current
Minimum cross section:
0-20 A
2.5 mm²
AWG 13
20-32 A
4 mm²
AWG 11
32-48 A
6 mm²
AWG 9
48-80 A
10 mm²
AWG 7
Recommended wire colours (refer to local rules and fig 5-1)
Wire color
Meaning
Connected to:
Brown or black
Phase
L1
Blue
Neutral
N
Green/Yellow
Earth
PE / GND
The current entering the Mass Combi Pro must be limited.
Therefore the AC-input must be protected by a fuse in the
L cable, as specified below. Maximum rating of the
generator AC input fuse: 50 A and Mains AC input fuse: 30
A. The PE/GND cable cross section must be at least equal
to L1.
Page 15
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
15
5.3.2 DC wiring
Keep in mind that high current will pass through the DC
wiring. Keep the cable length as short as possible, this will
keep the system efficiency as high as possible. The table
shows recommended DC wire sizes:
Model
Minimum cross section:
12/3000 - 150
95 mm²
4/0 AWG
24/3500 - 100
50 mm²
0 AWG
48/3500 - 50
25 mm²
3 AWG
Use M8 cable lugs terminals on the ends of the wires.
These lugs should be crimped with a proper crimping tool.
Use the following wire colours for DC wiring (refer to local
rules):
Wire colour
Meaning
Must be connected to:
Red
Positive
+ (POS)
Black
Negative
– (NEG)
Position the positive and negative cables next to each
other to limit the electromagnetic field around the cables.
The negative cable should be connected directly to the
negative post of the battery bank or the load side of a
current shunt. Do not use the chassis frame or hull of the
ship as the negative conductor. The positive battery cable
must be fused and connected to the positive post of the
battery bank. Fuse rating depends on the applied cable
cross section. Tighten the DC connections securely (15 20 Nm / 130 - 175 In-Lbs.).
5.3.3 AC safety grounding
WARNING
The ground wire offers protection only if the
cabinet of the Mass Combi Pro is connected to
the safety ground.
The ground stud (M6) is positioned at the left side of the
cabinet, see the overview on page 2, position 12. Connect
the earth terminal (PE / GND) to the hull or the chassis with
a minimum 10 mm².
In some applications automatic connection between the
neutral conductor (N) and earth (PE / GND) is not required
or acceptable. Therefore the automatic connection
between the neutral conductor (N) and earth (PE / GND) is
disabled by default.
For safe installation it is necessary to insert a Residual
Current Device (earth leakage switch) of 30 mA in the AC
in and outputs of the Mass Combi Pro. Refer to local
regulations on these issues!
5.4 Things you need
Make sure you have all the parts you need to install the
Mass Combi Pro:
Mass Combi Pro (included).
Battery temperature sensor with cable and plug
(included).
AC wiring. Double insulated three wire cable with wire
colours according to the locally applicable standards.
The applicable length and wire diameter depend on the
electrical installation. See section 5.3.1.
DC-wiring to connect the DC connections of the Mass
Combi Pro to the DC-distribution; see section 5.3.2.
DC-fuse holder with a DC-fuse, to be integrated in the
positive DC-cable. For specifications see section 5.3.2.
Screws / bolts (Ø 6 mm) (with plugs) to mount the
cabinet to a surface. Use mounting materials which are
suitable to carry the weight of the Mass Combi Pro.
Batteries. Refer to chapter 8 for specifications.
Appropriate and reliable cable terminals, cable lugs,
battery terminals and cord end terminals.
We recommend as a minimum tool kit:
Socket wrench 13 mm to fix the DC-input (battery)
cables.
Flat blade screw driver 1.0 x 4.0 mm to fix the screw
terminals.
Tools to fix the screws / bolts (Ø 6 mm) with plugs to
mount the cabinets to a surface.
Philips screw driver to open the connection area of the
Mass Combi Pro.
5.5 Removal of the front lid
Figure 5-2: Removal of the front lid
Steps:
1 Loosen the two screws that secure the front cover
plate.
2 Lift the front cover plate from the cabinet; see
figure 5-3.
Page 16
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
Figure 5-3: Front lid removed
WARNING
The front panel must not be removed while the
Mass Combi Pro is still connected to a power
source!
5.6 Mounting the cabinet to a surface
M6 bolts can be used for the mounting of the cabinet
vertically to a surface.
Take the following steps to mount the cabinet:
1 Determine for the four mounting spots on the basis of
the outline drawings and 150 mm of free space
required below the Mass Combi Pro for installation and
DIP switch operation.
2 Screw the topmost bolts somewhat into the wall.
3 Hang the cabinet with its key holes over the two bolts
and screw these bolts finger tight, so shifting is still
possible.
4 Place the two lowermost bolts.
5 Fasten all bolts securely.
5.7 Wiring instructions
WARNING
Have installation work done by a licensed
electrician only. Before connecting the wiring,
make the AC distribution as well as the DC
distribution voltage free. Move the main switch
to the “Off”-position.
CAUTION!
Short circuiting or reversing polarity may lead to
serious damage to the batteries, the Mass
Combi Pro, the solar panels, the wiring and/or
the terminal connections. Fuses between the
batteries and the Mass Combi Pro cannot
prevent damage caused by reversed polarity.
The damage as a result of reverse polarity is not
covered by the warranty.
CAUTION!
Too-thin cables and/or loose connections can
cause dangerous overheating of the cables
and/or terminals. Therefore tighten all
connections well. Only use cables of the correct
size.
Page 17
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
17
5.8 Installation overview
Figure 5-4: Installation overview for one Mass Combi (stand-alone operation)
CAUTION!
Ensure correct polarities, cross sections and fuses for all wiring. An RCD according to local regulations must be
connected to output-1 and 2.
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
5.9 Setting up a MasterBus network
All devices that are suitable for MasterBus are
marked by the MasterBus symbol.
MasterBus is a fully decentralized data network for
communication between the different Mastervolt system
devices. It is CAN-bus based which has proven itself as a
reliable bus-system in automotive applications. MasterBus
is used as power management system for all connected
devices, such as the inverter, battery charger, generator
and many more. This enables communication between the
connected devices, for instance to start the generator when
the batteries are low. MasterBus reduces complexity of
electrical systems by using UTP patch cables. All system
components are simply chained together. Therefore each
device is equipped with two MasterBus data ports. As only
a few MasterBus cables are needed, installation and
material costs are reduced importantly.
New devices can be added to the existing network easily.
Consequently the MasterBus network is highly flexible for
extended system configuration. Mastervolt also offers
several interfaces like the Modbus interface, making even
non-MasterBus devices suitable to operate in the
MasterBus network. For central monitoring and control of
the connected devices Mastervolt offers different panels,
like the full colour MasterView System panel. All monitoring
panels can be used for monitoring, control and
configuration of all connected MasterBus equipment.
CAUTION!
Never connect a non-MasterBus device to the
MasterBus network directly! This will void
warranty of all MasterBus devices connected.
5.10 How to set up a MasterBus network
Every MasterBus device is equipped with two data ports.
When two or more devices are connected via these ports,
a local data network called the MasterBus is formed. Keep
the following rules in mind:
Place a terminating device on both network ends.
OK
Connections between the devices are made by
standard straight UTP patch cables.
OK
At least one device in the network must be MasterBus
powering (see specifications). As all powering devices
are galvanic isolated, multiple powering devices are
allowed.
OK
Do not make ring networks.
Do not make T-connections in the network.
Page 19
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19
6 CONFIGURATION
The Mass Combi Pro is provided with two groups of DIPswitches to adjust the Mass Combi Pro according to the
specifications of the electrical installation, see figure 6-1.
DIP-switch settings are 0 for default values. The Mass
Combi Pro also features the more sophisticated MasterBus
configuration.
Previously done MasterBus settings are overruled by the
DIP-switch settings and they are greyed out in the menu.
When a DIP-switch is set to 0, the corresponding
MasterBus setting becomes default too, regardless the
previous setting.
6.1 Configuration via DIP-switches
The DIP-switches are located in the connection
compartment. Figure 6-1 shows the location of the DIPswitches and the print on the inside of the front cover plate.
6.1.1 Ground relay
For safe installation:
Residual Current Devices (RCD) must be integrated in
the AC inputs and AC outputs of the Mass Combi Pro.
The neutral conductor (N) of the AC output of the
Inverter must be connected to the safety ground
(PE/GND) when the Mass Combi Pro is working as an
inverter.
The ground relay function allows you to connect the
Neutral conductor (N) of the inverter output circuit to the
Safety Ground (PE / GND) automatically when the Mass
Combi is working as an inverter. Refer to local standards
on this issue.
Figure 6-1: DIP-switches and cover print
DIP
switch
Function
A1-A2
Parallel mode
0-0: Stand alone
1-0: Master 0
0-1: Slave
1-1: NA
A3
Output frequency inverter
0: 50 Hz
1: 60 Hz
A4
Energy saving mode
0: off
1: on (scan mode)
A5-A6
Secondary charger
12/3000
0-0: Follow main battery
1-0: 12 V constant
voltage
0-1: 12 V 3Step
1-1: 12 V constant
voltage
24/3500
0-0: Follow main battery
1-0: 24 V constant
voltage
0-1: 12 V 3Step
1-1: 12 V constant
voltage
48/3500
0-0: 24 V 3Step
1-0: 24 V constant
voltage
0-1: 12 V 3Step
1-1: 12 V constant
voltage
A7-A8
Main battery type
0-0: Flooded
1-0: Gel
0-1: AGM
1-1: Flooded traction
B1-B2
Fuse setting mains input
0-0: 30 A
1-0: 16 A
0-1: 10 A
1-1: 6 A
B3
Fuse setting generator input
0: 25 A
1: 50 A
B4
Power sharing mode
0: enabled
1: disabled
B5
Generator / Mains support mode
0: disabled
1: enabled
B6
AC voltage input window
0: wide (+/-40 V)
1: narrow (+/-23 V )
B7
Generator AC frequency window
0: wide (+8/-10 Hz)
1: narrow (+/-5 Hz )
B8
Ground relay
0: disabled
1: enabled
Page 20
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
6.2 MasterBus configuration
Parameters below can be changed via the MasterBus network. DIP switch settings overrule MasterBus settings. If DIP switches
are not set to default, the corresponding MasterBus configuration is greyed out
Value
Meaning
Default
Adjustable range
Device
Language
Language that is displayed on a
monitoring device connected to the
MasterBus
English
English, Nederlands, Deutsch,
Français, Castellano, Italiano,
Norsk, Svenska, Suomi, Dansk
Device name
Name of this particular device in
MasterBus. This name will be recognized
by all devices that are connected to the
MasterBus network.
MCU [Serial
number]
All names with a maximum of 12
characters.
Lock config
Option to lock the configuration (installer
login).
Not checked
Not checked, Checked
Factory settings
Option to reset the configuration to
default (installer login).
Not selected
Not checked, Selected
System
MasterBus power
Checkbox to have the Combi power
MasterBus or not.
Checked
Checked, Not checked
Silent mode
Activate this mode to reduce the sound of
the cooling fans. This may affect the
charging time.
Not checked
Not checked, Checked
Silent mode
Maximum fan speed
36 %
25-100 %
Shunt device select
Select a device in the list, the values of
which must be used by the Mass Combi
Pro.
No shunt
Shunt devices in the list
Main charger
Maximum current
Maximum charging current adjustable.
100 A
1..150 A / 1..100 A / 1..50 A
Method
Charging method selectable.
3-Step+, refer to
chapter 3
3-Step+, constant voltage
Battery type
Select the main battery type.
Flooded (Lead acid
wet cell)
User defined, Flooded, Gel, AGM,
Spiral, MLi, Flooded traction, Nickel
Cadmium
Bulk
Bulk voltage
Maximum Bulk voltage (adjustable if User
Defined).
14.40/28.80/57.60 V
8..16.00/16..32.00/32..64.00 V
Min bulk time
Minimum time that the charger stays in
Bulk mode.
2 min
0-600 min
Start bulk time
Voltage at which to start the bulk timer.
13.25/26.50/53.00
Max bulk time
Maximum time the bulk phase lasts
before the charger changes to
absorption.
480 min
0-600 min, Max bulk time > Min bulk
time
Bulk ret. volt.
Bulk return voltage. If the battery voltage
has dropped below this voltage, the
charger will return to bulk phase.
12.8/25.6/51.2V
Bulk return time
Delay time before the charger returns to
Bulk after reaching the Return to Bulk
voltage.
30 sec
0-255 sec
Absorption
Abs. voltage
Absorption voltage (adjustable if User
Defined is selected.
14.25/28.50/57.0 V
8-16.00/16-32.00/32-64.00 V
Max absorp.time
Maximum time that the charger stays in
absorption mode.
240 min
1-65535 min
Return amps
Charging current at which the charger
changes to Float phase.
9.0 A / 6.0 A / 3.0 A
0.0-25.0
Min absorp.time
Minimum time that the charger stays in
absorption mode.
15 min
0-255 min
Page 21
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
21
Value
Meaning
Default
Adjustable range
Float settings
Float voltage
Float voltage (adjustable if User Defined).
13.25/26.50/53.0 V
8-16.00/16-32.00/32-64.00 V
Inverter
Voltage
AC voltage
230 V
180-260 V
Frequency
AC frequency
50 Hz
50 Hz, 60 Hz
Enable GND rel.
Option to enable ground relay
Not checked
Not checked, checked
Energy save mode
Option to enable Energy save mode
Not checked
Not checked, checked
Scanning below
The Combi starts scanning below this
inverted power level in Energy save
mode.
10 W
10-250 W
Dynamic window
Select to base the input window upon
battery type default values or upon your
own preset values. Refer to section 4.2.4
Use battery type
Use battery type, user defined (Use
battery type: dynamic input window
still present, but not configurable)
DC high off
High battery voltage for inverter switch off
(12/24/48V, user defined only).
16.00/32.00/64.00V
13.00-16.00/26.00-32.00/52.00-
64.00V
DC high on
High battery voltage for inverter switch to
DC High Off alarm (12/24/48V, user def.)
15.50/31.00/62.00V
13.00-16.00/26.00-32.00/52.00-
64.00V
DC low off I=0%
Low battery voltage at which the inverter
switches off when the battery current is
0-2% of nominal (12/24/48V, user def.)
10.00/20.00/40.00V
9.50-13.00/19.00-26.00/38.00-
52.00V
DC low off I=2%
Low battery voltage at which the inverter
switches off when the battery current is
2% of nominal (12/24/48V, user def.)
9.75/19.50/39.00V
9.50-13.00/19.00-26.00/38.00-
52.00V
DC low off 100%
Low battery inverter switch off voltage,
batt. current 100% (12/24/48V, user def.)
9.50/19.00/38.00V
9.50-13.00/19.00-26.00/38.00-
52.00V
DC low on
Low battery inverter switch on voltage at
DC Low off alarm (12/24/48V, user def.)
12.00/24.00/48.00V
10.00-13.00/20.00-26.00/40.00-
52.00V
DC low off delay
Delay time before inverter switches off on
low battery voltage.
30 s
0-30 s
AC transfer
AC input policy
Define which AC input to be used under
which conditions, refer to section 4.3
Gen preferent
Mains preferent, Gen preferent, Max
fuse prefer
AC out 2 policy
Define under which conditions to use AC
output-2, refer to section 4.3
Gen/Mains input
Events only, Generator input, Mains
input, Gen/Mains input, Always on
Generator fuse
Generator fuse value
25 A
1-50 A
Mains fuse max.
Mains fuse maximum value that can be
set in the monitoring tab
30 A
1-30 A
Mains limit A
Mains fuse value setting
6 A
1-30 A
Mains limit B
Mains fuse value 10A
10 A
1-30 A
Mains limit C
Mains fuse value 16A
16 A
1-30 A
Power sharing
Power sharing mode option, chapter 3.
Checked
Not checked, checked
Allow AC support
AC support mode option, chapter 3.
Not checked
Not checked, checked
Gen. high volt.
Generator AC input window
275 V
184-275 V
Gen. low volt.
Generator AC input window
180 V
184-275 V
Gen. high freq.
Generator AC input window
58 Hz
36-68 Hz
Gen. low freq.
Generator AC input window
40 Hz
36-67 Hz
Generator delay
Time to trigger a Generator alarm
10 s
5 – 300 s
Mains high volt.
Mains AC input window
275 V
184-275 V
Mains low volt.
Mains AC input window
180 V
184-275 V
Mains high freq.
Mains AC input window
65 Hz
35-68 Hz
Mains low freq.
Mains AC input window
40 Hz
35-68 Hz
Mains delay
Time to trigger a Mains alarm
10 s
5-20 s
Page 22
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
6.2.1 MasterBus alarms
This is the Mass Combi Pro list of MasterBus alarms with their meaning
Alarm
Description
Overload
Combi in overload. The loads exceed the nominal inverter power.
Over temperature
Internal temperature of the Combi is too high.
Battery low
Main battery voltage is too low.
Battery high
Main battery voltage is too high.
Batt temperature
Battery temperature is out of range.
Temp sense error
An error has been detected in the temperature sensor signal.
Sync. error
Two or more Mass Combi Pro’s in a multiple configuration do not synchronize well.
Config error
Configuration error, most often in multi Combi installations. Check MasterBus and DIP switch settings.
Install error
Installation error around the Mass Combi Pro, not inside the unit. Check all connections.
System error
Internal Mass Combi Pro error. Contact your Mastervolt supplier.
Cable losses
Cable between Mass Combi Ultra and battery is too thin causing too high voltage drops
Shunt Mismatch
Setting for nominal voltage (12, 24 or 48 V) at the MasterShunt or the nominal voltage of the MLi
batteries differs from nominal voltage detected by the Mass Combi Pro. Check battery voltage and
settings of the MasterShunt or voltage of the MLi Pro battery.
6.2.2 List of event sources
This is the Mass Combi Pro list of event sources. These can initiate an event at another MasterBus connected device.
Event source
Description
Disabled
(no event programmed)
Inverting
The Mass Combi Pro is in Inverter mode
Charging
The Mass Combi Pro is in Charge mode
Supporting
The Mass Combi Pro is in Supporting mode
Overload
The inverter current is too large
Low bat
The main battery voltage has dropped below the Low bat value
Alarm
A Mass Combi Pro alarm has been triggered
Generator input
Generator input (“GEN”) is present
Mains input
Mains input (“MAINS”) is present
ACout 2 enabled
Switched Output-2 is enabled
Bulk
Charge phase Bulk
Absorption
Charge phase Absorption
Float
Charge phase Float
External fan
Trigger point to activate an external cooling fan
Silent mode
The Mass Combi Pro is in Silence mode
6.2.3 List of event commands
This is the Mass Combi Pro event commands list. Other MasterBus connected devices can be configured to initiate these
commands
Event command
Description
Inverter On/Off
Change the Mass Combi Pro inverter state to On/Off
Charger On/Off
Change the Mass Combi Pro charger state to On/ Off
Bulk
Changes to charge phase Bulk
Absorption
Changes to charge phase Absorption
Float
Changes to charge phase Float
Mains limit A
Fuse setting of the Mains input is set to 6 A (adjustable)
Mains limit B
Fuse setting of the Mains input is set to 10 A (adjustable)
Mains limit C
Fuse setting of the Mains input is set to 16 A (adjustable)
AC out 2 enabled
Switched Output-2 is enabled
Power off
Command to switch off the charger, inverter and open the input relay
Silent mode
Command to switch on/off the silent mode
Page 23
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23
7 COMMISSIONING, DECOMMISSIONING
7.1 Commissioning
CAUTION!
Check the polarity of all wiring before
commissioning: plus connected to plus (red
cables), minus connected to minus (black
cables).
The DIP-switches must be adjusted prior to
commissioning; see chapter 6.
Follow the steps described below to switch on the Mass
Combi Pro.
1 Tighten all strain reliefs.
2 Check all wiring and connections.
3 Close the front cover plate of the connection
compartment.
4 Place the DC-fuse(s) of the DC-distribution to connect
the batteries to the Mass Combi Pro.
WARNING
When placing this fuse, a spark can occur,
caused by the capacitors used in the Mass
Combi Pro. This is particularly dangerous in
places with insufficient ventilation, due to the
gassing of the batteries an explosion can occur
and avoid having flammable materials close by.
Now the Mass Combi Pro is ready for operation.
7.2 Decommissioning
If it is necessary to put the Mass Combi Pro out of
operation, follow the instructions in order of succession as
described below:
1 Move the Main-switch of the Mass Combi Pro to “Off”.
2 Remove DC-distribution fuses and/or disconnect the
batteries.
3 Remove AC-input fuses and/or switch off the AC-
sources.
4 Open the connection compartment of the Mass Combi
Pro.
5 Check with a suitable voltage meter whether the inputs
and the outputs of the Mass Combi Pro are voltage
free.
6 Disconnect all the wiring.
Now the Mass Combi Pro can be demounted in a safe way.
7.3 Trouble shooting
If a failure occurs, the origin of the failure is displayed by
means of the LEDs at the front of the Mass Combi, see
figure 7-1.
Figure 7-1: Error LEDs
The table shows the meaning of the error indications and
their solutions, together with other directions. If you cannot
solve a problem using this table, contact your local
Mastervolt Service Centre. See www.mastervolt.com. Make
sure you have the following information present if you have
to contact your local Mastervolt Service Center to solve a
problem:
Article and serial number (see section 1.7).
Software version (by means of MasterAdjust software).
1
2
5
6
3
4
7
8
9
Page 24
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Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
7.3.1 Trouble shooting table
Illuminating LEDs
MasterBus alarm
Explanation / Possible cause
What to do
Normal operation and warnings
None
The Mass Combi Pro is switched
off manually.
Switch on the Mass Combi Pro by
means of the main switch.
(1) blinking slowly
(1x/sec)
Inverter is synchronizing voltage
and frequency to generator AC.
Wait until the inverter is ready
synchronizing. After this, it will
activate the generator input.
(1) blinking fast
(4x/sec)
MB monitoring: ACin
Low quality
Error: generator input voltage or
frequency out of range
Check generator voltage and
frequency, refer to generator input
specifications in chapter 8.
(2) blinking slowly
(1x/sec)
The inverter is synchronizing its
voltage and frequency to mains
AC
Wait until the inverter is ready
synchronizing. After this, it will
activate the mains input.
(2) blinking fast
(5x/sec)
MB monitoring: ACin
Low quality
Error: mains input voltage or
frequency out of range
Check mains voltage and frequency,
refer to generator input specifications
in chapter 8.
(3) red
MB monitoring:
Overload
Inverter in overload, inverted
power exceeds 3500 W
Check the load connected and
disconnect
(9) red
Battery low
Battery voltage low
Stop inverting, start charging
(9) blinking red
Charging a low battery
Errors (Mass Combi Pro shuts down)
(3) and (9) red, (4)
yellow
Overtemperature
Combi too hot. Restart when
alarm is over
Check ventilation
(9) red, 7 and 8 yellow
Battery high
Battery voltage too high, Combi
restarts when the alarm is over.
Check battery voltage setting
(9) red, (7) yellow, (8)
off
Temp sense error
Temperature sensor sends a
wrong signal.
Check battery sensor and its cable
(9) red, (7) yellow, (8)
off
Batt temperature
Battery hot, Combi restart when
alarm is over.
(3) and (9) red
System error,
Sync error,
Config error
Communication disturbed
Configuration wrong
Check sync cables and connectors
Permanent errors (manual reset required)
(3) and (9) blinking fast
red
Overload
Number of inverter overload
restart attempts exceeded.
Reduce the output loads, shut off and
on the Mass Combi Pro.
System error
Hardware issue
Switch off and on the Mass Combi
Pro.
(5) and (6) blinking fast
Install error
Installation error
Correct installation, shut off and on
the Mass Combi Pro.
Page 25
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
25
8 TECHNICAL DATA
8.1 Specifications
Mass Combi Pro
12/3000-150
24/3500-100
Article number
38013000
38023500
Inverter specifications
Nominal battery voltage
12 V
24 V
Inverter output voltage
230 V (±2%) (adjustable 180 – 200 V)
Frequency
50/60 Hz (±0.005%) configurable
Continuous power
@Tamb=25˚C, cos phi = 1
3000 W
3500 W
Continuous power@Tamb=40˚C, cos phi = 1
3000 W
3500 W
Max. peak load
6000 W
7000 W
Output waveform
True sine wave, Thd < 1 % under standard conditions
Max. efficiency
≥ 90%
≥ 92%
DC input voltage range
9.5 – 16 V
19 – 32 V
Dynamic input window battery
Programmable, current dependent switch-off levels, vary with set battery type
(Gel / AGM settings below)
Switch off voltage low battery@ load ≤ 2%
11.0 V (±2%)
22.0 V (±2%)
Switch off voltage low battery@ load 2-100%
10.5 V - 9.5 V (±2%)
21.0 V - 19.0 V (±2%)
Switch on voltage low battery
12.0 V (±2%)
24.0 V (±2%)
Switch off voltage high battery
16.0 V (±2%)
32.0 V (±2%)
Switch on voltage high battery
14.5 V (±2%)
29.0 V (±2%)
Max. ripple on DC @ full load
< 5% RMS
< 5% RMS
Nominal DC current at full load
300 A
175 A
Recommended batteries
300 – 900 Ah*
200 – 600 Ah*
No load, DC drain
Off mode (hard switched)
0 W
0 W
Inverter off mode (remote)
4 W
4 W
Energy saving mode
7 W
7 W
Normal operation mode
16 W
16 W
Battery charger specifications
Input voltage range
184 – 275 V
184 – 275 V
Max AC input current
12 A
16 A
Max. charge current @Tamb=40˚C
150 A @ 14.25 V adjustable
100 A @ 28.5 V adjustable
Charge characteristic
Mastervolt 3-step+
Battery types
AGM / Gel / MLi / Flooded / Flooded traction / Spiral / NiCad
Battery temperature sense
Input present, sensor included
Voltage sense
Only through MasterShunt, else automatic compensation
Transfer system specifications
AC input 1 (“GEN”) (switched)
Yes, 50 A
Yes, 50 A
AC input 2 (“MAINS”) (switched)
Yes, 30 A
Yes, 30 A
AC Output 1 (“OUT-1”)
Yes, 67 A
Yes, 67 A
AC Output 2 (“OUT-2”) (switched)
Yes, 50 A
Yes, 50 A
AC input fuses
No
No
Transfer speed
Seamless (<1 ms)
Seamless (<1 ms)
Transfer voltage range (adjustable)
184 V-275 V
184 V-275 V
Transfer frequency range (adjust.)
35 – 68 Hz
35 – 68 Hz
Power sharing
Yes
Yes
Generator/Mains support
Yes
Yes
Auto-synchronize with AC input 1 / 2
Yes
Yes
Page 26
26
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
Mass Combi Pro
12/3000-150
24/3500-100
Paralleling/3-phase
Parallel stacking
Yes, up to 10 standard from hardware version D
3-phase configuration
Yes, up to 3 x 3 from hardware version D
General specifications
Dimensions (HxWxD)
472x318x178 mm
472x318x178 mm
Weight
15.3 kg
15.3 kg
Protection degree
IP23 (vertical wall mounting)
Safety class
IEC protection class I
Grounding
Ground relay standard, includes ground stud (ABYC compliant) configurable
Operating temperature
-25 ˚C to 60 ˚C, above 40 ˚C derating
Overvoltage category
Gen: OVII; Mains: OVIII
Pollution degree
PDII
Relative humidity
Protected against humidity and condensing air by conformal coating, max
95% relative humidity, none condensing
Standards, approvals & listings
CE, ABYC
Options & features
Front panel display
Yes, shows charge state, inverter power, input/output state and includes
on/off/inverter off switch
Battery temperature sensor
Yes
Cooling
Maintenance free vario fans
MasterBus functionality
MasterBus powering
Standard on, selectable
Overload protection
Gen & Mains input
Digital fuse
Adjustable with three preset values
Frequency monitoring
Relay disconnects when frequency is out of range
Voltage monitoring
Relay disconnects when voltage is out of range
Overvoltage protection
Non recoverable protection of the unit
Output-1 & 2
Short circuit protection
Yes (inverter only)
Overload protection
Yes
Over temperature protection
Yes
AC backfeed protection
Yes
Main & Secondary battery
Short circuit protection
Yes
Reversed polarity protection
No
High / low battery voltage
Yes
Page 27
Mass Combi Pro 12/3000-150, 24/3500-100 – User and Installation Manual
27
8.2 Dimensions
Figure 8-1: Dimensions in mm
Page 28
CONTACT INFORMATION
EMEA
Snijdersbergweg 93
1105 AN AMSTERDAM
The Netherlands
+31 (0)20 34 22 100
info@mastervolt.com
NORTH AMERICA
N86 W12500 Westbrook Crossing
Menomonee Falls, WISCONSIN 53051
USA
+1 800 307 6702, Option 1
technical@marinco.com
ASIA/PACIFIC
42 Apollo Drive, Rosedale
AUCKLAND 0632
New Zealand
+ 64 9 415 7261
enquiries@bepmarine.com
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