Mastervolt Mass Combi 12/1200-60 User manual

USERS MANUAL / GEBRUIKERSHANDLEIDING / BETRIEBSANLEITUNG
MANUEL UTILISATEUR / MANUAL DE UTILIZACION / INSTRUZIONI PER L’USO
MASS COMBI
12/1200-60 & 24/1200-35
SINE WAVE INVERTER/CHARGER COMBINATION
WITH GENERATOR / MAINS SUPPORT
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: [phone]
Fax.: [phone]
www.mastervolt.com v 1.2 June 2007
ENGLISH: PAGE 1
NEDERLANDS: PAGINA 41
DEUTSCH: SEITE 81
FRANÇAIS: PAGINA 121
CASTELLANO: PÁGINA 161
ITALIANO: PÁGINA 201

CONTENTS
2EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

CONTENTS
CONTENTS: v 1.2. June 2007
1 GENERAL INFORMATION.............................................................................................................................................. 5
1.1 Use of this manual.............................................................................................................................................. 5
1.2 Guarantee specifications.................................................................................................................................... 5
1.3 Validity of this manual ........................................................................................................................................ 5
1.4 Quality ................................................................................................................................................................ 5
1.5 Liability ............................................................................................................................................................... 5
1.6 Identification label............................................................................................................................................... 5
1.7 Changes to the MASS COMBI ........................................................................................................................... 5
2 SAFETY GUIDELINES AND MEASURES ...................................................................................................................... 6
2.1 Warnings and symbols ....................................................................................................................................... 6
2.2 Use for intended purpose ................................................................................................................................... 6
2.3 Organizational measures ................................................................................................................................... 6
2.4 Maintenance & repair ......................................................................................................................................... 6
2.5 General safety and installation precautions........................................................................................................ 6
2.6 Warning regarding life support applications........................................................................................................ 7
2.7 Warning regarding the use of batteries. ............................................................................................................. 7
3 HOW IT WORKS.............................................................................................................................................................. 8
3.1 The battery charger ............................................................................................................................................ 8
3.1.1 Three step Plus charge system ......................................................................................................... 8
3.1.2 Temperature compensated charging................................................................................................. 9
3.1.3 Connection of a second battery......................................................................................................... 9
3.2 The inverter ........................................................................................................................................................ 9
3.2.1 General.............................................................................................................................................. 9
3.2.2 Energy saving mode (selectable) ...................................................................................................... 9
3.3 Operation modes.............................................................................................................................................. 10
3.3.1 Basic operation................................................................................................................................ 10
3.3.2 The transfer switch .......................................................................................................................... 10
3.3.3 Power sharing function (selectable)................................................................................................. 10
3.3.4 Generator / mains support function (selectable).............................................................................. 12
3.3.5 Power support function (selectable) ................................................................................................ 12
3.3.6 Summary of the AC operation modes.............................................................................................. 13
3.4 Remote control panels ..................................................................................................................................... 14
3.4.1 Remote panel ICC........................................................................................................................... 14
3.4.2 Remote panel APC.......................................................................................................................... 14
3.4.3 Masterlink MICC panel .................................................................................................................... 14
3.5 Alarm contacts.................................................................................................................................................. 14
3.6 MasterAdjust software...................................................................................................................................... 15
4 OPERATION .................................................................................................................................................................. 16
4.1 Indicators.......................................................................................................................................................... 16
4.2 Switching On and Off ....................................................................................................................................... 16
4.2.1 Switching On ................................................................................................................................... 16
4.2.2 Switching Off ................................................................................................................................... 17
4.2.3 Switching Ch. (Charger only)........................................................................................................... 17
4.3 Protections ....................................................................................................................................................... 17
4.3.1 Transfer switch overload protection................................................................................................. 17
4.3.2 Output overload or short circuit ....................................................................................................... 17
4.3.3 Overheating..................................................................................................................................... 18
4.3.4 Under and over voltage ................................................................................................................... 18
4.4 Maintenance..................................................................................................................................................... 18
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 3

CONTENTS
4.5 Problem solving................................................................................................................................................ 18
5 INSTALLATION ............................................................................................................................................................. 19
5.1 Unpacking ........................................................................................................................................................ 19
5.2 Environment ..................................................................................................................................................... 19
5.3 Wiring ............................................................................................................................................................... 19
5.3.1 AC-wiring......................................................................................................................................... 19
5.3.2 DC wiring......................................................................................................................................... 20
5.3.3 AC safety grounding........................................................................................................................ 20
5.4 Things you need............................................................................................................................................... 21
5.5 Removal of the front panel ............................................................................................................................... 21
5.6 Overview connection compartment .................................................................................................................. 22
5.7 Mounting of the cabinet .................................................................................................................................... 23
5.8 Connection ....................................................................................................................................................... 23
5.8.1 Wiring instructions for the Mass Combi ........................................................................................... 25
5.8.2 Alarm contacts................................................................................................................................. 25
5.9 Settings ............................................................................................................................................................ 25
6 SETTINGS ..................................................................................................................................................................... 26
6.1 DIP Switch A .................................................................................................................................................... 26
6.1.1 Parallel mode .................................................................................................................................. 26
6.1.2 Output frequency inverter ................................................................................................................ 26
6.1.3 Energy saving mode........................................................................................................................ 26
6.1.4 Battery type ..................................................................................................................................... 27
6.1.5 Ground relay.................................................................................................................................... 27
6.2 DIP Switch B .................................................................................................................................................... 28
6.2.1 Power sharing function.................................................................................................................... 28
6.2.2 Power Support Function.................................................................................................................. 28
6.2.3 Generator / mains support function ................................................................................................. 28
6.2.4 Setting for Power Quality at incoming AC........................................................................................ 28
6.2.5 Combi/inverter control ..................................................................................................................... 29
6.2.6 Equalize mode................................................................................................................................. 29
7 START-UP AFTER INSTALLATION ............................................................................................................................. 30
7.1 Commissioning................................................................................................................................................. 30
7.2 Decommissioning ............................................................................................................................................. 30
8 TROUBLE SHOOTING.................................................................................................................................................. 31
8.1 Fault indicators................................................................................................................................................. 31
8.2 Software version............................................................................................................................................... 33
9 TECHNICAL DATA........................................................................................................................................................ 34
9.1 Specifications inverter ...................................................................................................................................... 34
9.2 Specifications charger ...................................................................................................................................... 35
9.3 Miscellaneous................................................................................................................................................... 36
9.4 Characteristics.................................................................................................................................................. 37
10 ORDERING INFORMATION.......................................................................................................................................... 39
11 EC DECLARATION OF CONFORMITY ........................................................................................................................ 40
4EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

GENERAL INFORMATION
1 GENERAL INFORMATION
1.1 USE OF THIS MANUAL
This manual serves as a guideline for the safe and
effective operation, maintenance and possible correction
of minor malfunctions of the Mass Combi.
It is therefore obligatory that every person who works on or
with the Mass Combi must be completely familiar with the
contents of this manual, and that he/she carefully follows
the instructions contained herein.
Installation of, and work on the Mass Combi, may be
carried out only by qualified, authorised and trained
personnel, consistent with the locally applicable standards
and taking into consideration the safety guidelines and
measures (chapter 2 of this manual).
Keep this manual at a secure place!
The English version has 44 pages.
1.2 GUARANTEE SPECIFICATIONS
Mastervolt guarantees that this unit has been built
according to the legally applicable standards and
specifications. Should work take place, which is not in
accordance with the guidelines, instructions and
specifications contained in this users manual, then
damage may occur and/or the unit may not fulfil its
specifications. All of these matters may mean that the
guarantee becomes invalid.
The guarantee is limited to the costs of repair and/or
replacement of the product. Costs for installation labor or
shipping of the defective parts are not covered by this
guarantee.
1.3 VALIDITY OF THIS MANUAL
All of the specifications, provisions and instructions
contained in this manual apply solely to standard versions
of the Mass Combi delivered by Mastervolt.
This manual is only valid for the following models with
apparatus version “M” and higher (see section 1.6)
Description Part number
Mass Combi 12/1200-60 / 230V 36011205
Mass Combi 24/1200-35 / 230V 36021205
For other models see other manuals available on our
website: www.mastervolt.com
1.4 QUALITY
During their production and prior to their delivery, all of our
units are tested and inspected. The standard guarantee
period is two years after date of purchase.
1.5 LIABILITY
Mastervolt can accept no liability for:
xconsequential damage due to use of the Mass
Combi;
xpossible errors in the manuals and the results
thereof.
1.6 IDENTIFICATION LABEL
Figure 1: Identification label
The identification label is located at the right-hand side of
the Mass Combi. (see figure 1) Important technical
information required for service, maintenance & secondary
delivery of parts can be derived from the identification
label.
CAUTION!
Never remove the identification label.
1.7 CHANGES TO THE MASS COMBI
Changes to the Mass Combi may be carried out only after
obtaining the written permission of Mastervolt. This is not
applicable for DIP switches (see chapter 6) which are used
for making user settings.
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 5

SAFETY GUIDELINES AND MEASURES
2 SAFETY GUIDELINES AND MEASURES
2.1 WARNINGS AND SYMBOLS
Safety instructions and warnings are marked in this
manual by the following pictograms:
A procedure, circumstance, etc which
deserves extra attention.
CAUTION!
Special data, restrictions and rules with regard
to preventing damage.
WARNING
A WARNING refers to possible injury to the
user or significant material damage to the
charger if the user does not (carefully) follow
the procedures.
2.2 USE FOR INTENDED PURPOSE
1 The Mass Combi is constructed as per the applicable
safety-technical guidelines.
2 Use the Mass Combi only:
xfor the charging of lead acid batteries and the
supply of users attached to these batteries, in
permanent systems;
xfor the conversion of a DC voltage from a battery
to an AC voltage.
xconnected to a dedicated double pole circuit
breaker and earth leakage switch.
xwith a fuse, protecting the wiring between Mass
Combi and battery;
xin a technical correct condition;
xin a closed, well-ventilated room, protected
against rain, moist, dust and condensation;
xobserving the instructions in the users manual.
WARNING
Never use the Mass Combi in situations
where there is danger of gas or dust explosion
or potentially flammable products!
3 Use of the Mass Combi other than mentioned in point
2 is not considered to be consistent with the intended
purpose. Mastervolt is not liable for any damage
resulting from the above.
2.3 ORGANIZATIONAL MEASURES
The user must always:
xhave access to the user's manual;
xbe familiar with the contents of this manual. This
applies in particular to chapter 2, Safety
Guidelines and Measures.
2.4 MAINTENANCE & REPAIR
1 If the Mass Combi is switched off during maintenance
and/or repair activities, it should be secured against
unexpected and unintentional switching on:
xremove the AC supply
xremove the connection to the batteries
xbe sure that third parties cannot reverse the
measures taken.
2 If maintenance and repairs are required, use only
original spare parts.
2.5 GENERAL SAFETY AND INSTALLATION
PRECAUTIONS
xDo not expose the Mass Combi 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 in a non-ventilated area,
overheating may result.
xThe Mass Combi must be provided with an equipment-
grounding conductor to the AC-input ground terminal.
Grounding and all other wiring must comply with local
codes and ordinances.
xIn case of fire, you must use the fire extinguisher which
is appropriate for electrical equipment.
xShort circuiting or reversing polarity will lead to serious
damage to batteries, Mass Combi and the wiring.
Fuses between the batteries and the Mass Combi can
not prevent damage caused by reversed polarity and
the warranty will be void.
xProtect the DC wiring with a fuse, according to the
guidelines in this manual.
xConnection and protection must be done in
accordance with local standards.
xDo not work on the Mass Combi 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.
xCheck the wiring and connections at least once a year.
Defects such as loose connections, burned cables etc.
must be corrected immediately.
6EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

SAFETY GUIDELINES AND MEASURES
xDo not touch the equipment when wet or if your hands
are clammy.
xNot only the batteries, but the Mass Combi as well can
become a projectile if your transport is involved in an
accident! Ensure adequate and secure mounting and
always use suitable handling equipment for
transportation.
xExcept for the connection compartment, see section
5.5, the cabinet of the Mass Combi must not be
opened. There are no serviceable parts inside the
cabinet. Only qualified, authorized and trained
electrician installers are authorized to open the
connection compartment.
2.6 WARNING REGARDING LIFE SUPPORT
APPLICATIONS
The Mass Combi 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
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 the use of the
Mass Combi parts in the 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 discharge level 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 should only be undertaken
by authorised personnel!
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 7

HOW IT WORKS
3 HOW IT WORKS
This chapter describes the various applications of the
Mass Combi series from Mastervolt.
The Mastervolt Mass Combi is a battery charger, a
powerful sine wave inverter and an AC transfer system in
one compact enclosure. The three-step Plus charging
method guarantees that the batteries are always charged
100% The pure sine wave inverter assures that the AC
output voltage is perfectly reliable even when limited
external AC power is available. External AC power can be
supplied by a public grid or a generator. DC power can be
delivered by charged batteries.
3.1 THE BATTERY CHARGER
The built-in battery charger is electronically controlled. It is
designed for optimal recharging of both wet cell, gel cell
and AGM deep cycle batteries. Battery charging is
accomplished in three automatic stages: BULK,
ABSORPTION and FLOAT. With an external AC source
connected, the Mass Combi charger also serves the
functions of an AC to DC converter to supply DC loads
which are connected to the battery. Simple, automatic
operation is made possible by the microprocessor that is
the brain of the inverter/charger combination. In most
cases, the unit is left on and no attention or maintenance
is required.
3.1.1 Three step Plus charge system
See figure 2. The first step of the three step Plus charge
system is the BULK phase, in which the output current of
the charger is 100%, and the greater part of the capacity
of the battery is rapidly charged. The current charges the
batteries and gradually the voltage rises to the absorption
voltage of 14.4V (12V models) or 28.8V (24V models) @
25°C / 77°F.
The duration of this phase depends on the ration of battery
to charger capacity, and naturally also on the degree to
which the batteries were discharged to begin with.
The bulk phase is followed by the absorption phase.
Absorption charging starts when the voltage on the
batteries has reached 14.4V (12V models) / 28.8V (24V
models) @ 25°C / 77°F, and ends when the battery is
completely full. Battery voltage remains constant at 14.25V
(12V models) / 28.5V (24V models) @ 25°C / 77°F
throughout this stage, and the charge current depends on
the degree to which the battery was initially discharged,
the battery type, the ambient temperature, and so on. With
a wet cell battery this stage lasts some four hours, with gel
and AGM around three. Once the battery is 100% full, the
Mastervolt charger automatically switches over to the float
phase.
During the float phase the Mass Combi switches to 13.25V
(12V models) or 26.5V (24V models) @ 25°C / 77°F 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 three-step charge system.
CHARGE CURRENT
BATTERY VOLTAGE
BULK ABSORPTION FLOAT
TIME
As the Mass Combi is equipped with a three-step Plus
charge system, the batteries can also remain connected to
the Mass Combi in winter. One hour every 12 days the
charger automatically switches to absorption to keep the
battery running properly and prolong its life span. The
three-step Plus charge system is also safe for all the
connected equipment.
Figure 2:
Three step charge system
See also section 9.4 for detailed characteristics of the
three step Plus charge system.
8EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

HOW IT WORKS
3.1.2 Temperature compensated charging
The Mass Combi is delivered with a battery temperature
sensor. By installing this battery temperature sensor the
charge voltages are automatically adapted for deviating
temperatures.
See figure 3. 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. Over charge and gassing are prevented this
way. This will extend the life of your batteries.
See section 5.8 to connect the battery temperature sensor.
3.1.3 Connection of a second battery
The Mass Combi is equipped with second charge output
which can be used to give a maintenance charge to a
small battery set like a starter battery Maximum output
current: 5 Amps.
Output voltage: same as the main charger.
12V 24V
battery temperature (°C)
charge voltage (V)
See section 5.8 for connection.
3.2 THE INVERTER
3.2.1 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.
Considerable momentary surge power is available for
starting-up electric motors. High efficiency insures long
battery usage between recharges. A built in energy saving
feature can reduce battery power consumption when the
inverter is unloaded.
Figure 3:
Temperature compensated charging
3.2.2 Energy saving mode (selectable)
In the inverter mode the Mass Combi has a built-in
automatic energy saving feature that reduces battery
power consumption when no load is present on the
“SHORT BREAK” output. Response from idle is instant. In
most cases the operation is not noticeable. Four modes
can be set by means of DIP switches, see chapter 6.
The inverter of the Mass Combi can operate in one of the
following modes (table below):
Mode Explanation
High power The energy saving mode is switched off. The inverter is fully operating and the output voltage is 230V AC.
This is the default setting.
Idle 40VA
Idle 150VA
The inverter reduces, below the 40VA or 150VA connected load, the output voltage almost to zero. The Mass
Combi scans the “SHORT BREAK” outlet with pulses of 230V every 2½ seconds. When it detects a load that
is larger than 40VA or 150VA, it switches on the inverter automatically. Small loads such as clocks in VCR’s
or micro waves are most likely not to work on this mode.
Economy
mode
The inverter reduces the output voltage to 208V AC if the connected load drops below 250VA. The output
voltage will return to 230V AC if the connected load rises above 250 VA. Small loads as clocks in VCR’s and
micro waves will perform equal whether the inverter is running in the economy state or is on. The saving is
approximately 10%.
For detailed specifications see section 9.1 “DC no load power consumption”
Table 1: Mass Combi energy saving modes
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 9

HOW IT WORKS
3.3 OPERATION MODES
The Mass Combi is not just a combination of an inverter
and a battery charger. It has many additional features
which can be used to increase the total available AC
power, even when external AC power is limited.
3.3.1 Basic operation
When there is no external AC power available, the inverter
of the Mass Combi provides AC power on the “SHORT
BREAK” output from the batteries. There is no AC power
available on the “POWER” output. Now the Mass Combi is
in “Inverter mode”. See figure 4.
When external AC power comes available, the transfer
relay switches on. See figure 5. Both outputs as well as
the battery charger are supplied by the external AC power.
The batteries are recharged now. Now the Mass Combi is
in “Charger mode”
3.3.2 The transfer switch
The Mass Combi has two AC-outputs available;
xSHORT BREAK output. The “SHORT BREAK” output
switches between the AC-input and the output of the
inverter. The AC input has the highest priority. In
principle, AC-power is always available on this output.
However during a switchover the loads connected to
this output are not supplied with AC-power for a very
short period of time (short break). It is the ideal output
for loads that need AC-power permanently like
personal computers, interior lighting and the
refrigerator.
AC OUTPUT
xPOWER output. This output is always internally
connected to the AC-input. It is therefore only available
when an external AC-source like shore power, a
generator or an outlet is present. Larger loads like a
hot water boiler, electric cooking appliance or washing
machine should be connected to this output
3.3.3 Power sharing function (selectable)
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 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 instance, when the external AC power is
limited by a 6A fuse, the Power Sharing level must be set
to 6A.
AC INPUT
AC OUTPUT
“POWER”
AC OUTPUT
“SHORT BREAK”
AC
DC
BATTERIES
Figure 5:
Charger mode
AC INPUT
“POWER”
AC OUTPUT
“SHORT BREAK”
AC
DC
Figure 4: BATTERIES
Inverter mode
10 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

HOW IT WORKS
See figure 6.
Here the Power Sharing level is set to a 6 Amps while the
AC outputs consume a total of 1 + 3 = 4 Amps. This
means that only 6 – 4 = 2 Amps is left over for charging.
With 12V batteries this will result in a maximum charge
current of approx. 30A DC
Although the Power Sharing level can be set by means of
the DIP switches locally on the Mass Combi (see section
6.2.1), we recommend the use of an optional remote
control panel, like the Remote APC or Masterlink MICC.
With this remote panel you can select the available shore
current (fuse) of each marina or camping site in a very
easy way.
When the total connected AC load reaches the level of the
Power Sharing setting (6A), 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 0A. See
figure 7.
AC OUTPUT
AC INPUT
AC OUTPUT
“POWER”
AC OUTPUT
“SHORT BREAK”
AC
DC
BATTERIES
POWER
SHARING
CONTROL
6A
4A
2A
Max. 6A-AC
0A
Approx.
0A-DC
@12V
Figure 7:
Power sharing
AC INPUT
“POWER”
AC OUTPUT
“SHORT BREAK”
AC
DC
3A
BATTERIES
POWER
SHARING
CONTROL
6A 1A
2A
Max. 6A-AC
Approx.
30A-DC
@12V
Figure 6:
Power sharing
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 11

HOW IT WORKS
3.3.4 Generator / mains support function
(selectable)
If the demand for AC power still increases, the external AC
circuit breaker may still trip if nothing is done. This problem
can be solved by the Generator / mains support function. If
the total demand for energy exceeds the maximum
external power supply, energy can be added to the AC
outputs “POWER” and “SHORT BREAK” by means of the
inverter. This appliance can be automatically connected in
parallel with the external power supply.
See figure 8
Here the AC-input is still limited to 6 Amps. This is not
enough to supply the total load (4 + 5A = 9A) connected to
the AC outputs.
When the Generator / mains support function is enabled,
the inverter will supply the remaining 9 – 6 = 3A. This
means that the restricted amount of external AC power will
be compensated by energy which is stored in the
batteries.
Later, when the AC load has dropped below the setting of
the Power sharing function again, the battery charger of
the Mass Combi will commence to recharge the batteries.
For safety reasons the transfer relay is immediately
switched off when incoming AC power fails in operation so
that there will never be a high voltage on the shore cable
inlet when it is not connected.
3.3.5 Power support function (selectable)
As explained above, when the Generator / mains support
function is enabled, the inverter will operate in parallel with
the external AC power source. This means that energy
from the batteries is added to the AC-output only. Under
no circumstance AC power from the inverter can be fed
back into the AC grid. Please mind that several countries
maintain different regulations with regard to AC-sources
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 function if this is not allowed!
Even if the use of the Generator / mains support function
is not allowed, it is still possible to supply more energy
than the external AC sourced can deliver This can be
achieved by using the Power support function.
See figure 9
The AC-input is still limited to 6 Amps. This is not enough
to supply the total load (4 + 5A = 9A) connected to the AC
outputs.
Now when the Power support function is enabled, the
transfer relay will open. When opened, the external power
source will deliver 4A to supply the load connected to the
“POWER” output only, while the inverter will deliver 5
Amps for the load connected to the “SHORT BREAK”
output.
Please note that if the power consumption of the
“POWER” output exceeds the setting of the power support
function, the external AC fuse will still trip
If the total current from the “POWER”-output and “SHORT
BREAK”-output is less than the Power support setting
during approx. 10 minutes, the Mass Combi connects the
“SHORT BREAK” output back to the AC-input again
The charger commences charging again when the load
reduces further and the total current drops below the
Power sharing setting.
NOTE! You can either choose the Generator /
mains support function or the Power support
function, not both simultaneously.
AC INPUT
AC OUTPUT
“POWER”
Figure 8: Generator / mains
support function
AC OUTPUT
AC OUTPUT
“SHORT BREAK”
AC
DC
BATTERIES
POWER
SUPPORT
FUNCTION
4A
4A
5A
Max. 6A-AC 5A
Figure 9:
Power support function
Approx.
90A-DC
@12V
“SHORT BREAK”
AC
DC
4A
BATTERIES
GENERATOR /
MAINS SUPPORT
FUNCTION
6A 5A
Max. 6A-AC 3A
Approx.
55A-DC
@12V
12 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

HOW IT WORKS
3.3.6 Summary of the AC operation modes
Function DIP switch* What is it used for? How is this achieved?
Power Sharing B-SW3 To protect the incoming AC
from overload
By reducing the charge current and thus the AC input
current.
Generator / Mains
support
B-SW5 To deliver more AC power
than available from the
incoming AC.
The AC output of the inverter is connected in parallel
with the incoming AC. This means that energy from the
batteries is added to the incoming AC.
Power support B-SW4 To deliver more AC power
than available from the
incoming AC.
The load which is connected to the “POWER”-output is
supplied by the incoming AC, while the SHORT BREAK
output is connected to the output of the inverter.
Table 2: Overview of the AC operation modes
* see chapter 6 for adjustment of the DIP switches
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 13

HOW IT WORKS
3.4 REMOTE CONTROL PANELS
There are three remote panels available for the Mass
Combi. The Inverter Charger Control (ICC) panel and the
AC Power Control (APC) panel are specially designed for
the Mass Combi. The Mass Inverter Charger Control
(MICC) is a universal panel. However, it is not possible to
connect all three panels at the same time: you can either
use the combination of ICC and APC or the Masterlink
MICC panel only.
The remote panels are connected to the Mass Combi via a
modular communication cable with two RJ 12 connectors.
The maximum length of communication cable should not
exceed 15m/49ft. The cables are available in the following
length:
Art. Nr. Description
6502001030 Modular communication cable, 6m/19ft
6502100100 Modular communication cable, 10m/33ft
6502100150 Modular communication cable, 15m/49ft
3.4.1 Remote panel ICC
Figure 10: Remote panel ICC
The optional ICC panel provides the same functions as the
user panel on the Mass Combi. However, with this remote
panel you have the convenience to operate the Mass
Combi remotely.
3.4.2 Remote panel APC
Figure 11: Remote panel APC
The APC panel has extended functions such as setting
remotely the Power sharing value and monitoring your
“AC-load”. This APC remote panel is optional (see chapter
10 for ordering information).
3.4.3 Masterlink MICC panel
Figure 12: Masterlink MICC panel
The Masterlink MICC panel (art. no 70403105) is a digital
remote panel that has additional features compared to the
ICC and APC panel. This sophisticated panel is not only a
remote control panel to switch on and off your Mass
Combi but also a battery consumption meter for read-out
of the exact state-of-charge of your battery by means of a
shunt. (included with the delivery of the Masterlink MICC)
When the battery is reaching a low voltage set point or a
low state-of-charge an alarm can be raised. This can be
used to start up the generator.
The information provided includes reading voltage,
current, consumed Ah, time remaining and remaining
capacity as a percentage of the maximum available
battery capacity. A well-lit LCD screen also displays direct
online data or historical information. A protective back box,
easy to install, is included as standard for protecting the
electronic components. This panel is suitable for
MasterVision, Mastervolt’s modular switchboard system.
3.5 ALARM CONTACTS
The Mass Combi is equipped with an integrated alarm
function. External equipment can be controlled by the
potential free contacts of this alarm (see 5.8.2). The
maximum switch current of the relay is 1A. By default the
relay will be activated when the DC-voltage is out of range,
after a delay of 30 seconds. See table below. Other
functions can be programmed by means of MasterAdjust
software (see section 3.6)
Nominal voltage: 12V 24V
Under voltage ON: 10.0V 20.0V
Under voltage OFF: 11.0V 22.0V
Over voltage ON: 16.0V 32.0V
Over voltage OFF: 15.5V 31.0V
Table 3
14 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

HOW IT WORKS
3.6 MASTERADJUST SOFTWARE The Mass Combi MasterAdjust software allows you to
easily check the status of the charger, inverter and transfer
system and to set the parameters of your Mass Combi so
as to meet your personal requirements.
Mastervolt offers several free to download software,
available from the website www.mastervolt.com.
Use of a Mastervolt “PC link” for communication via the
QRS232 communication port of the Mass Combi is
required. See ordering information (chapter 10). See the
user manual of the MasterAdjust software for detailed
information.
If your computer does not have a COM-port (RS232), use
of an external USB-RS232 converter is necessary.
Figure 13: Masteradjust software
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 15

INSTALLATION
4 OPERATION
The Mass Combi is a fully automatic inverter / charger
system. Under normal circumstances there is no need for
adjustment or operation besides switching on and off.
WARNING
Never disconnect any of the wiring during
operation of the Mass Combi
4.1 INDICATORS
See figure 14. The operation of the Mass Combi is
displayed by means of LED indicators at the front side of
the housing. If the Mass Combi is activated and as long as
none of the red indicators are illuminated, no failure is
detected and the unit is operating normally.
4.2 SWITCHING ON AND OFF
The only control on the Mass Combi itself is the main
switch (see figure 14) on the front of the unit. This switch
controls On, Off and Ch. (Charger only)
4.2.1 Switching On
The Mass Combi can be activated by switching the main
switch to the “ON” position.
If you use a remote control panel, press the on/off button
on the remote control panel.
After switching on expect a three till five second delay
before the unit is activated. The LED-indicators will blink
several times, indicating the installed software version
(see section 8.2 for explanation).
If AC power is available on the AC input and within the
specified limits, the Mass Combi will switch to Charger
Mode and will commence to charge the batteries. At the
same time the internal transfer relay will pass the AC
power to the AC output “SHORT BREAK”.
If the AC power from the external AC-source is unavailable
or outside the specified limits, the unit will come on as an
inverter. Inverter overload protection, built-in idle mode
circuitry, transfer switching, power sharing and battery
charger regulation will all function automatically.
Figure. 14: LED indicators
Power ba
r
Charger mode: Displays the actual DC
charge current as a percentage of the
maximum charge current
Inverter mode: Displays the actual AC
output power as a percentage of the
maximum output power
Charge cycle
Charger mode: Displays
the status of the charge
cycle: bulk, absorption or
float (see section 3.1.1).
Inverter mode: Displays
the approximate battery
voltage
Inverter LED
When illuminated green, the
Mass Combi is operating in
inverter mode
Main switch
Charger LED
When illuminated green, the
Mass Combi is operating in
charger mode
AC Present
Illuminates when the incoming AC power (grid or
generator voltage) is available and according to
specifications.
When flashing fast, the incoming AC is outside
specifications.
When one of the indicators flashes or illuminates red, a failure is detected. The cause of
failure is explained in section 8.1
16 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

OPERATION
4.2.2 Switching Off
Move the main switch to the “Off” position to switch off the
Mass Combi. If you use a remote control panel, press the
on/off button on the remote control panel. The Mass
Combi stops and all the indicators go off. The “Short”
break output is disconnected and will become powerless.
WARNING
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 17
Switching off the Mass Combi with the main
switch on the front of the cabinet does not cut
off the connection to the batteries or the AC-
source. Therefore the “POWER” output is still
active
NOTE! When the main switch is in the “Off”-
position, it overrides the remote control panel.
In this off state it is not possible to start the
Mass Combi remotely.
4.2.3 Switching Ch. (Charger only)
When the main switch is set to the “Ch.”-position, the
Mass Combi 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 are away i.e. in the winter time. Now your
batteries are spared when the incoming AC-source fails in
operation.
If you use the remote panel ICC or MICC you can still
switch-on/off the charger remotely, even if the incoming
AC-source is not available. If the AC-source is available
and the Mass Combi is operating in the charger mode, the
user panel shows the actual status of the system.
4.3 PROTECTIONS
The Mass Combi is protected against overload, short
circuit, over heating and under and over voltage. The user
can detect failures from the local user panel or from one of
the (optional) remote control panels by means of the
indicators.
See section 8.1 for explanation of this readout.
CAUTION!
The Mass Combi is not protected against
reversing polarity of the DC-input, AC voltage
on the DC-input and serious over voltage
(>265VAC at 230V) on the AC-input or AC-
outputs.
4.3.1 Transfer switch overload protection
The transfer switch of the Mass Combi is protected against
overload and short circuit. When the current through the
transfer switch of the Mass Combi is too high (see figure
25) the thermal fuse (figure 17) will switch off and the
Mass Combi shuts down.
To correct this situation, proceed as follows:
1 Move the main switch of the Mass Combi to the
“OFF”-position.
2 Disconnect the Mass Combi from any power source.
Disconnect all loads from the Mass Combi.
3 Investigate the cause of failure of the thermal fuse like
overload or short-circuits.
4 Refer to section 5.5 to open the connection
compartment
5 Wait for at least two minutes and then reset the
thermal fuse by pushing the button inside the
connection compartment (see figure 15).
THERMAL
FUSE
Figure 15: Reset of the thermal fuse
6 Close the connection compartment again.
7 Connect the Mass Combi to the power sources again.
8 Switch on the Mass Combi. (see section 4.2)
4.3.2 Output overload or short circuit
In case of overload or short circuit in the inverter mode,
the 100% LED of the Power bar (see figure 14) is
illuminated red and the output voltage of the Mass Combi
is limited. The Mass Combi shuts down if this overload or
failure lasts longer than 5 seconds.
The Mass Combi will automatically restart after shutdown.
After 5 failed start attempts the Mass Combi shuts down
permanently, the 100% LED is lit and the Inverter LED

OPERATION
4.3.4 Under and over voltage(see figure 14) will flash You can restart the Mass Combi
only by switching the unit manually off and on with the
main switch on the Mass Combi after the overload is
removed or failure is solved.
The AC-input of the Mass Combi is, within limits, protected
against over and under voltage. See specifications in
section 9.2. The Mass Combi will switch to inverter mode if
the AC-input voltage is out of operating range and will
switch back if the AC-input voltage is present again. 4.3.3 Overheating
In the event of overheating the Mass Combi shuts down
(see chapter 8.1 for illumination of indicator lights). The
Mass Combi is automatically powered up again when the
temperature drops below the factory default threshold.
The DC-input of the Mass Combi is also, within limits,
protected against over and under voltage. See
specifications in section 9.1. The Mass Combi switches off
if the DC-input voltage is out of range.
Overheating is most likely caused by:
4.4 MAINTENANCE
xheavy or non-resistive loads operating for a longer time
xhigh ambient temperature No specific maintenance is required. If necessary, use a
soft clean cloth to clean the Mass Combi. Never use any
liquids, acids and/or scourers.
xdisrupted air flow (dust or too less space)
4.5 PROBLEM SOLVING
Refer to chapter 8 if a problem occurs.
18 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN

INSTALLATION
5 INSTALLATION
During installation and commissioning of the Mass Combi,
the Safety Guidelines & Measures are applicable at all
times. See chapter 2 of this manual.
5.1 UNPACKING
In addition to the Mass Combi the delivery includes:
xa battery temperature sensor;
xthis user’s manual.
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 the battery voltage is the same as the DC-input
voltage of the Mass Combi (e.g. 24V battery set for a 24V
input voltage). Also check that the AC output voltage and
output power of the Mass Combi satisfies loading
requirements.
5.2 ENVIRONMENT
Obey the following stipulations during installation:
xThe Mass Combi is designed for indoor use only.
xAmbient temperature: 0 ... 60°C / 32°F … 140°F;
(power derating above 25°C / 104°F to decrease the
internal heat sink temperature)
xHumidity: 0-95% non condensing
xMount the Mass Combi on a solid surface, with the
connecting cables downwards.
xMake sure that the hot air produced during operation
can be discharged. The Mass Combi must be mounted
in such a way that obstruction of the airflow through
the ventilation openings will be prevented.
xNo objects must be located within a distance of 10 cm /
4 inch around the Mass Combi. See also section 5.7.
xDo not locate the Mass Combi in the same
compartment as the batteries.
xDo not install the Mass Combi straight above the
batteries because of possible corrosive sulphur 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 feed the wiring through the cable glands of the
cabinet, and then connect the wiring to the terminals. Fix
the phase line wire to terminal L, the neutral wire to
terminal N and the ground wire to terminal PE.
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:
in mm² AWG
6-12 Amp 1.5 mm² AWG 15
12-20 Amp 2.5 mm² AWG 13
20-32 Amp 4 mm² AWG 11
32-48 Amp 6 mm² AWG 9
48-80 Amp 10 mm² AWG 7
Recommended wire colours(refer to local rules)::
x230V AC installations:
Wire color Meaning
Must be
connected to:
Brown or black Phase L1
Blue Neutral N
Green/Yellow Earth PE / GND
The maximum current passing the Mass Combi must be
limited. Therefore the AC-input must be protected by a
fuse, as specified below.
Model Mass Combi Maximum rating of the AC
input fuse
All models 50A
EN / Mass Combi 12/1200-60 & 24/1200-35 / June 2007 19

INSTALLATION
5.3.2 DC wiring 5.3.3 AC safety grounding
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
recommended minimum cross section for battery cables
up to 3m / 10ft length is:
WARNING
The ground wire offers protection only if the
cabinet of the Mass Combi is connected to the
safety ground. Connect the earth terminal (PE
/ GND) to the hull or the chassis.
Model Mass Combi DC Cable cross section:
CAUTION!
12/1200-60 2x 50mm² / AWG0
24/1200-35 2x 35mm² / AWG0
Use 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 color Meaning
Must be
connected to:
Red Positive + (POS)
Black Negative – (NEG)
Lay the positive and negative cables next to each other to
limit the electro magnetic field around the cables. The
negative cable should be connected directly to the
negative post of the battery bank or the ground side of a
current shunt. Do not use the chassis frame or hull of the
ship as the negative conductor. Tighten connections
securely (15 - 20 Nm / 130 - 175 In-Lbs.). The positive
battery cable must be fused according to local applicable
regulations and connected to the positive post of the
battery bank.
Model Mass Combi Recommended Combi fuse
12/1200-60 160A
24/1200-35 80A
The fuse with the fuse-holder is available from your local
Mastervolt distributor or Customer Service Representative.
For safe installation it is necessary to:
xconnect the neutral conductor (N) of the AC
output to the earth (PE / GND), only during
inverter operation of the Mass Combi;
xinsert a Residual Current Device (earth leakage
switch) of 30mA in AC output “SHORT BREAK”
of the Mass Combi.
xInsert a Residual Current Device (earth leakage
switch) of 30mA in AC input of the Mass Combi.
Refer to local regulations on these issues!
For safety purposes the neutral conductor (N) of the AC
output must be connected to the earth (PE / GND) when
the Mass Combi is in inverter operation. When utility
power is available on the AC input, and the Mass Combi is
in charger mode, this connection must be disabled again.
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
To enable this automatic connection, see section 6.1.5.
20 EN / Mass Combi 12/1200-60 & 24/1200-35 / EN