Mastervolt CombiMaster 230V Series Operating manual

COMBIMASTER
230V Series
INVERTER CHARGER COMBINATION
WITH AC–IN SUPPORT
USER AND INSTALLATION MANUAL
10000015079/03
To download this manual in other languages, please
visit our website: www.mastervolt.com

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CombiMaster 230V Series –User and Installation Manual
TABLE OF CONTENTS
1SAFETY INSTRUCTIONS.......................................... 3
1.1 Intended purpose................................................ 3
1.2 General............................................................... 3
1.3 Explosive gases.................................................. 3
1.4 Personal precautions.......................................... 3
1.5 Grounding instructions........................................ 4
1.6 Warnings regarding the use of batteries............. 4
1.7 Warning regarding life support applications........ 4
2GENERAL INFORMATION ........................................ 5
2.1 Use of this manual.............................................. 5
2.2 Liability ............................................................... 5
2.3 Warranty............................................................. 5
2.4 Identification label............................................... 5
2.5 Correct disposal of this product.......................... 5
3PRODUCT DESCRIPTION......................................... 6
3.1 Overview of the connections............................... 6
3.2 Operating modes................................................ 6
3.3 Remote control................................................... 7
3.4 Protection ........................................................... 7
4INSTALLATION.......................................................... 8
4.1 Unpacking........................................................... 8
4.2 Location.............................................................. 8
4.3 Batteries ............................................................. 8
4.4 Connection example........................................... 9
4.5 Wiring................................................................. 9
4.5.1 DC wiring................................................. 9
4.5.2 AC wiring............................................... 10
4.5.3 AC Safety grounding............................. 10
4.5.4 Network wiring (CZone/MasterBus)....... 10
4.6 Things you need............................................... 10
4.7 Installation step-by-step ....................................11
4.8 Accessories connector (dry contacts)................14
4.8.1 Remote switch........................................14
4.8.2 Alarm output...........................................14
4.9 System integration (CZone/MasterBus) ............15
5SETTINGS.................................................................16
5.1 DIP switch settings............................................16
5.2 MasterBus configuration....................................16
5.2.1 Monitoring ..............................................17
5.2.2 Alarms....................................................17
5.2.3 History....................................................17
5.2.4 Configuration Settings............................17
5.2.5 Events –System automation .................18
5.3 CZone configuration..........................................19
6OPERATION .............................................................20
6.1 Switching On / Charge only...............................20
6.2 Status LEDs ......................................................20
6.3 3-step+ charge process.....................................20
6.4 Temperature compensated charging.................21
6.5 Reset the thermal fuse after an overload ..........22
6.6 Maintenance......................................................22
6.6.1 Decommissioning...................................22
6.6.2 Storage and transportation.....................22
7TROUBLESHOOTING ..............................................23
8TECHNICAL DATA...................................................24
8.1 Specifications inverter.......................................24
8.2 Specifications charger.......................................24
8.3 Specifications transfer system...........................25
8.4 Miscellaneous....................................................26
8.5 Dimensions .......................................................27

CombiMaster 230V Series –User and Installation Manual
3
1 SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Read the entire manual before using the CombiMaster. Keep this manual in a secure place.
1.1 Intended purpose
Use the CombiMaster only:
•for the charging of lead acid and Lithium-Ion batteries and the supply of loads attached to these batteries, in permanent
systems;
•for the conversion of a DC voltage from a battery to an AC voltage;
•connected to a dedicated double pole circuit breaker and earth leakage switch;
•with a fuse, protecting the wiring between CombiMaster and battery;
•in a technical correct condition;
•in a well-ventilated room, protected against rain, moisture, dust and condensation;
•observing the instructions in the user manual.
1.2 General
1. The appliance is not to be used by children or persons with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or instruction.
2. To reduce the risk of electric shock –Do not expose the CombiMaster 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 CombiMaster in a non-ventilated room, as overheating may result.
3. Use of an accessory or spare part not recommended or sold by Mastervolt may result in a risk of fire, electric shock, or
personal injury.
4. The CombiMaster is designed to be permanently connected to an AC and DC electrical system. Installation of, and work
on the CombiMaster, may be carried out only by qualified and trained personnel, consistent with the locally applicable
standards and regulations.
5. Make sure that all wiring is properly installed, in good electrical condition, and correctly sized to match the AC ampere
rating of the CombiMaster. Check the wiring on a regular base, at least once a year. Do not use the CombiMaster when
the wiring is undersized or damaged.
6. Do not operate the CombiMaster if it has received a sharp blow, been dropped, or otherwise damaged in any way.
Contact your supplier or Mastervolt.
7. Except for the connection compartment (see chapter 4), the CombiMaster may not be opened or disassembled. There
are no serviceable parts inside the case of the CombiMaster. Take it to a qualified serviceman when service or repair is
required. Incorrect reassembly may result in a risk of electric shock or fire.
8. To reduce risk of electric shock, disconnect the CombiMaster from both AC and DC electrical system before attempting
any maintenance or cleaning. Turning off controls will not reduce this risk. Be sure that third parties cannot reverse the
measures taken.
9. Short circuiting or reversing polarity will lead to serious damage to batteries, CombiMaster, wiring as well as accessories.
Fuses cannot prevent damage caused by reversed polarity and the warranty will be void.
10. In case of fire, you must use the fire extinguisher which is appropriate for electrical equipment.
1.3 Explosive gases
1. WARNING –RISK OF EXPLOSIVE GASES.WORKING IN THE VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.BATTERIES GENERATE
EXPLOSIVE GASES DURING NORMAL OPERATION.FOR THIS REASON,IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE USING THE
COMBIMASTER,YOU READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
2. To reduce the risk of battery explosion, follow these instructions and those published by the battery manufacturer and
manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary marking on these
products and on engine.
1.4 Personal precautions
1. Consider having someone close by to come to your aid when you work near a lead-acid battery.
2. Wear eye and clothing protection. Avoid touching eyes while working near battery.
3. NEVER smoke or allow a spark or flame in vicinity of battery or engine.
4. Do not wear watches, bracelets, necklaces or other metal objects when working on batteries.

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CombiMaster 230V Series –User and Installation Manual
1.5 Grounding instructions
The CombiMaster must be provided with an equipment-grounding conductor to the ground terminal/stud. Grounding and all
other wiring must comply with local codes and ordinances.
1.6 Warnings regarding the use of batteries
1. Only use the CombiMaster for charging lead-acid batteries and the supply of users attached to these batteries, in
permanent systems. Do not use the CombiMaster for charging dry-cell batteries that are commonly used with home
appliances. These batteries may burst and cause injuries and damage.
2. NEVER charge non-rechargeable batteries.
3. NEVER charge a frozen battery.
4. 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.
5. If it is necessary to remove a battery, always remove grounded terminal from battery first. Make sure all accessories are
off, so as not to cause an arc.
6. Never allow battery acid to drip on the CombiMaster when reading electrolyte specific gravity or filling battery.
7. Do not set a battery on top of the CombiMaster.
1.7 Warning regarding life support applications
Mastervolt products are not designed to be used as component of medical equipment, unless negotiated in the form of a
written agreement between customer and/or manufacturer and Mastervolt. Such agreement will require the equipment
manufacturer either to contract additional reliability testing of the Mastervolt parts and/or to commit to undertake such testing
as a part of the manufacturing process. Furthermore, the manufacturer must agree to indemnify and not hold Mastervolt
responsible for any claims arising from the use of the Mastervolt parts in the life support equipment.

CombiMaster 230V Series –User and Installation Manual
5
2 GENERAL INFORMATION
2.1 Use of this manual
This manual serves as a guideline for the safe and effective operation and maintenance of the following CombiMaster models:
Model
Part number
12V/2000VA-60A
35012000
12V/3000VA-100A
35013000
24V/2000VA-40A
35022000
24V/3000VA-60A
35023000
These models are further referred to as "CombiMaster".
2.2 Liability
Mastervolt can accept no liability for:
•Consequential damage resulting from the use of the CombiMaster.
•Possible errors in the included manual and the consequences of these.
•Use that is inconsistent with the purpose of the product.
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.
2.3 Warranty
The Mastervolt product warranty covers the CombiMaster 230V Series for the first two years after the purchase date, on the
condition that the product is installed and used according to the instructions in this manual. Installation or use that do not
comply with 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.
2.4 Identification label
Part number
Serial number
K821A0001, device
version "A".
Important information required for service or maintenance can
be derived from the identification label. The identification label is
located at the right-hand side of the CombiMaster.
CAUTION!
Never remove the identification label.
This will void the warranty.
Figure 1: Identification label
2.5 Correct disposal of this product
This product is designed and manufactured with high quality materials and components, which can be recycled
and reused. 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.
Part No:35013000
Type: CombiMaster
24V/3000VA-60A230V
AC input: 90~230Vac, 50/60Hz
DC output: 28.5Vdc, 60Adc
DC input: 24Vdc,108Adc
Inverter output:230Vac, 50/60Hz, 2600W
Serial No: K821A0001
Design by Mastervolt, Made inthe PRC
Snijdersbergweg 93, 1105 AN Amsterdam.
TheNetherlands

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CombiMaster 230V Series –User and Installation Manual
3 PRODUCT DESCRIPTION
The CombiMaster is a multifunctional charger inverter. It combines an inverter, a battery charger and an AC transfer switch.
3.1 Overview of the connections
Front side with open connection compartment
Bottom side
Figure 2: Connections
1 Grounding system jumper
2 AC input
3 Status LEDs
4 M8 Positive battery terminal
5 M8 Negative battery terminal
6 AC output power
7 DIP switches
8 Resettable thermal fuse (30A)
9 Main switch
10 Ground stud
11 CZone/MasterBus connection
12 Accessories connector
13 Temperature sensor connection
3.2 Operating modes
•Inverter mode: When there is no external AC power
available, the inverter provides AC power on the AC
outputs. If energy saving mode is enabled, battery power
consumption will be reduced when there is no (i.e. less than
20W for 10 seconds) load on AC OUT. Please note that
small loads such as wifi routers, satellite receivers or digital
clocks are most likely not to work in this mode.
•Charger mode: When external AC power is available on
the AC input, the battery will be charged and the AC output
is supplied by the external power.
AC
DC
AC IN AC OUT
BATTERIES
AC
DC
AC IN AC OUT
BATTERIES

CombiMaster 230V Series –User and Installation Manual
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•Power sharing mode: The CombiMaster automatically reduces its battery charger output when the load connected to AC
OUT increases while the available power at AC IN is limited. This avoids the external AC circuit breaker from tripping. The
power sharing level, i.e. AC IN Limit setting (adjustable from a display), should be set to match the value of the external
circuit breaker.
Load on AC OUT < AC IN Limit
Load on AC OUT ≥ AC IN Limit
•AC input support mode: 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 AC IN
support mode. If the total demand for energy exceeds the
maximum external power supply, energy can be added to
AC OUT by means of the inverter. This means that the
inverter adds energy from the batteries, in parallel with the
external power source.
Note: Different countries have different regulations regarding AC sources operating in parallel with the AC grid. This may
mean that in some situations AC IN support mode is not allowed! Familiarize yourself with local regulations on this
issue. AC power from the inverter will never be fed back into the AC grid.
See chapter 5 on page 16 for the required settings.
3.3 Remote control
The CombiMaster can be monitored from a remote panel like the SmartRemote or a Touch 5 (in a CZone network). Some
settings can only be adjusted from a laptop/notebook or PC connected to the CombiMaster via a USB Interface.
3.4 Protection
•Overload or short circuit: while in the inverter mode, the CombiMaster will shut down after 5 seconds of 200% overload
or after 10 seconds 150%.
•Transfer switch overload: the transfer switch of the CombiMaster is protected against overload and short circuit. When
the current through the transfer switch of the CombiMaster is too high, the thermal fuse (item 8 on page 6) will disconnect
the AC input.
•High temperature: if the ambient temperature of the CombiMaster exceeds 40°C, it will reduce power. If it exceeds 60°C,
it will shut down, trigger the status LEDs and optionally a remote alarm.
High temperature is most likely caused by heavy loads operating for a longer period, high ambient temperature or
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.
•Battery low/high: the CombiMaster can warn for low or high battery voltages by triggering status LEDs and
CZone/MasterBus alarms.
CAUTION!
The CombiMaster is not protected against reversed polarity of the DC input or serious over voltage (>280VAC) on
the AC in- and output.
See section 6.2 on page 20 for an overview of the status LED. See chapter 5 on page 16 for the required settings.
AC
DC
AC IN
6A 4A
AC OUT
BATTERIES
2A
AC
DC
AC IN
6A 6A
AC OUT
BATTERIES
0A
AC
DC
AC IN AC OUT
BATTERIES
6A 9A
3A

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CombiMaster 230V Series –User and Installation Manual
4 INSTALLATION
4.1 Unpacking
The delivery includes:
•CombiMaster
•1× Temperature sensor
•1× MasterBus terminator
•1× Drop cable CZone/MB (1m)
•Mounting bracket
•User and installation 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 2.4) whether the battery voltage is the same as the nominal output voltage of
the CombiMaster (e.g. 24V battery set for a 24V battery charger).
Also check that the AC output voltage and output power of the CombiMaster complies with your system and loads.
4.2 Location
•The CombiMaster is designed for indoor use only.
•Ambient temperature: -25°C to 60°C, power derating above 40°C.
•Humidity: 5-95% non-condensing
•Surface wall mount (vertically, IP 23) or tabletop (horizontally, IP 21)
•Do not expose the CombiMaster to excessive dust, aggressive environments, ammonia or salt.
•Do not operate the CombiMaster in a closed-in area or restrict ventilation in any way.
•The CombiMaster requires a minimum of 100mm/4" of clearance on every side to ensure safety and proper ventilation.
•If the CombiMaster is installed in the immediate vicinity of living areas, take into account that the fan of the CombiMaster
can produce noise when operating.
•If the CombiMaster is installed in a CZone or MasterBus network, take the network powering into consideration.
•Although the CombiMaster fully complies with all applicable EMC limits, it may still cause harmful interference to radio
communication equipment. If such interference appears, it is recommended to increase the separation between the
CombiMaster and the equipment, to relocate the receiving antenna or to connect the equipment to a circuit different from
that to which the CombiMaster is connected.
•Never place the CombiMaster directly above the battery being charged, as gases from battery will corrode and damage the
CombiMaster.
4.3 Batteries
Model
Recommended battery capacity
Minimum based on Mastervolt Gel batteries. If
connecting batteries of a different manufacturer
make sure the manufacturer's
recommendations are met.
12V/2000VA-60A
120 −
600 Ah
24V/2000VA-40A
80 −
400 Ah
12V/3000VA-100A
200 −
1000 Ah
24V/3000VA-60A
120 −
600 Ah

CombiMaster 230V Series –User and Installation Manual
9
4.4 Connection example
Note: This schematic illustrates the general placement of the CombiMaster in a circuit. It is not meant to provide detailed
wiring instructions for any particular electrical installation.
Figure 3: Installation drawing CombiMaster
4.5 Wiring
WARNING!
The wire sizes stated in this manual are given as guideline only. Always comply with all local rules and regulations.
WARNING!
On first connecting to power, make sure the CombiMaster is in a well-ventilated area as it might spark.
4.5.1 DC wiring
Always keep your wire runs as short as practical to prevent low voltage shutdowns and to keep the DC breaker from nuisance
tripping (or open fuses) because of increased current draw.
DC cable cross section
Model
<3m / 10ft
3-5m / 10-16ft
12V/2000VA-60A
70mm2/ 2/0AWG
95mm2/ 3/0AWG
12V/3000VA-100A
95mm2/ 3/0AWG
120mm2/ 4/0AWG
24V/2000VA-40A
35mm2/ 2AWG
50mm2/ 1AWG
24V/3000VA-60A
50mm2/ 1AWG
70mm2/ 2/0AWG

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CombiMaster 230V Series –User and Installation Manual
Use M8 cable lugs on the ends of the wires. These lugs should be crimped with a proper crimping tool.
Recommended wire colors (refer to local rules):
Run the 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 ground side of a current shunt. Do not use the chassis frame as
the negative conductor. Tighten securely.
The positive cable must be fused and connected to the positive post of the battery bank. Use a fuse that matches the applied
wire size. The fuse with fuse-holder is available from your local Mastervolt distributor.
4.5.2 AC wiring
WARNING!
The ground wire offers protection only if the case of the CombiMaster is connected to the safety ground. Connect
the ground terminal (PE / GND) to the hull or the chassis.
CAUTION!
According to local regulations an RCD/Breaker (also known as GFCI) must be placed in the AC input and output
circuit of the CombiMaster.
For a safe installation the correct wire cross section must be applied. Don’t use a cross section that is smaller than indicated.
Recommended cross section for the AC wiring:
AC Current
Minimum cross section
0-20 A
2.5 mm²
20-32 A
4 mm²
Recommended wire colors (refer to local rules):
Wire color
Meaning
Must be connected to
Europe
USA
Brown
Black
Phase
L1
Blue
White
Neutral
N
Green/Yellow
Green
Earth
PE / GND
4.5.3 AC Safety grounding
WARNING!
For safety reasons Residual Current Devices (RCDs), also known as Breakers or Ground Fault Circuit Interrupters
(GFCIs), of 30mA must be integrated in the AC input and AC output of the CombiMaster. Refer to locally applicable
regulations regarding grounding of autonomous power systems.
If an RCD or GFCI is used, place the grounding system jumper (located on
the left side of the CombiMaster) on N and PE.
Default setting
Combined PEN
4.5.4 Network wiring (CZone/MasterBus)
The CombiMaster can be connected to a CZone or MasterBus network. For CZone, use an RJ45 Drop cable CZone/MB. For
MasterBus, use a MasterBus cable and daisy chain the CombiMaster to the other devices. Both networks need a terminating
device on both ends of the network. Do not make ring networks. For more details on networks, please contact your Mastervolt
supplier.
4.6 Things you need
Make sure you have all the parts you need to install a CombiMaster:
•CombiMaster (included).
•Battery temperature sensor with cable and plug (included).
Wire color
Meaning
Connect to:
Red
Positive
+ (POS)
Black
Negative
–(NEG)

CombiMaster 230V Series –User and Installation Manual
11
•For CZone setup, an RJ45-M12 Drop cable CZone/MB (included) and a tee connector (not included).
•For MasterBus setup, an RJ45 MasterBus cable (not included).
•DC cables to connect the CombiMaster to the batteries and common negative. See section 4.5.1 for specifications.
•DC fuse holder with a DC fuse, to be integrated in the positive DC cable.
•Screws/bolts (Ø 6mm / ¼") with plugs to mount the CombiMaster to a surface. Use mounting materials which are suited to
carry the weight of the CombiMaster.
•AC cable to connect the AC input to an AC power source. See section 4.5.2 for specifications.
•Batteries. See section 4.3 for specifications.
•Appropriate and reliable cable terminals, cable lugs, battery terminals and cord end terminals.
We recommend as a minimum tool kit:
•Socket wrench to fix the main DC cables (13mm / ½”).
•Socket wrench to fix the Safety ground connection (10mm / 3/8”).
•Flat blade screw driver to fix the screw terminals of the AC wiring.
•Tools to fix the screws / bolts (Ø 6mm / ¼") with plugs to mount the CombiMaster to a surface.
•Philips screw driver number 2 to open the connection compartment.
4.7 Installation step-by-step
Step 1. Turn off the electrical power.
Step 2. On a solid surface, mark the holes for the mounting bracket and secure the mounting bracket to the surface.
Wall mounted
Tabletop mounted
Step 3. Place the CombiMaster over the mounting bracket and then downwards until it snaps into place.
Step 4. Fix the CombiMaster to the surface by fastening two screws at the lower side of the case as well.

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CombiMaster 230V Series –User and Installation Manual
Step 5. Connect the M6 grounding lug to the central grounding point.
Step 6. Open the connection compartment by loosening the two screws at the bottom and then lifting the front cover plate.
Step 7. Connect the AC wiring to the screw terminals. Fasten the cables with a strain relief.
Step 8. Integrate a fuse holder in the positive battery wire but do not place the fuse yet!
Fit crimp-on cable lugs (M8) to the DC cables.
Connect the DC cabling of the battery bank: positive to +, negative to –.
AC IN AC OUT

CombiMaster 230V Series –User and Installation Manual
13
Step 9. Attach the battery temperature sensor to the casing of the battery bank. Then plug the temperature sensor cable
into the “temp.sensor” jack.
Note: Lithium-ion batteries require no temperature sensor.
Step 10. On the left side of the CombiMaster check the jumper selecting the grounding system.
See section 4.5.3 on page 10.
Step 11. Option: Connect the CombiMaster to the CZone or MasterBus network. See section 4.9 on page 15 for more
information on system integration.
Adding the CombiMaster to a CZone network
1 Disconnect the backbone at the closest
backbone connection and add in a tee
connector.
2 Reconnect the backbone connection(s) with
the new tee connector in place.
3 Connect the RJ45 CZone/MB drop cable to
the black coupler on the tee and then
connect to the CombiMaster.
Adding the CombiMaster to a MasterBus
network
1 Disconnect a MasterBus cable or Terminator
from the closest MasterBus device and
connect it to the CombiMaster.
2 Connect the new MasterBus cable to the
other MasterBus device and then connect to
the CombiMaster.
Ensure that the network is properly terminated.
Step 12. Option: use a small screw driver to change DIP switch settings. See section 5.1 on page 16.
Note: if added to a CZone network, the DIP switches are used to set the
CZone address during configuration.
Step 13. Option: connect external alarm or remote switch input. See section 4.8.
Step 14. Set the desired output voltage and other configuration settings using a remote control panel or the DIP switches.
See chapter 5.
Step 15. Check all wiring. If all wiring is OK: Place the inverter fuse.
WARNING!
When the fuse is placed, internal capacitors may cause a spark. This is normal
Step 16. Close the connection compartment and fix the screws at the bottom.
Step 17. Switch on the CombiMaster.

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CombiMaster 230V Series –User and Installation Manual
4.8 Accessories connector (dry contacts)
The screw terminal at the bottom side of the CombiMaster, offers the following contacts:
Remote switch input
Alarm output
4.8.1 Remote switch
By default, the upper two contacts (Remote) of the accessories connector are connected by a jumper to close the circuit. If
desired, use these contacts to connect a remote switch that mimics the main On/Charge only switch.
•Use the Remote contacts to use the ignition lock. In this case, the CombiMaster's main switch must be in the off position
(). Closed = On, Open = Charge only.
•Use both contacts to connect an external switch. In this case, the CombiMaster's main switch must be in the on position (I).
Closed = On, Open = Charge only.
4.8.2 Alarm output
The lower three contacts of the accessories connector can be used to control external equipment, like an alarm or light, to
indicate the occurrence of a CombiMaster alarm. The alarm outputs support Normally Closed and Normally Open systems.
See also section 5.2.4 for the dry contact alarm function in the configuration settings.
Max load: 250VAC, 30VDC, 3A.
1A
1A

CombiMaster 230V Series –User and Installation Manual
15
4.9 System integration (CZone/MasterBus)
The CombiMaster can be connected to a CZone or MasterBus network.
•CZone network
Points to consider:
˗Up to 40 devices can be connected together on a single backbone.
˗Make sure the CZone network has two terminating resistors, one at each open end of the backbone.
˗The electric power for the network comes from a battery or power supply. Make sure that it delivers enough power
and is positioned as close to the middle of the backbone as possible to reduce voltage drop.
˗Each device on the CZone network has a unique CZone address; the Dipswitch. This number is usually assigned
automatically during configuration and must match the DIP switch settings. This is done in the CZone Configuration
Tool.
•MasterBus network
Use an RJ45 MasterBus cable (not included) and daisy chain the CombiMaster to the other MasterBus devices, forming a
local data network.
Points to consider:
˗Connections between the devices are made by standard MasterBus cables (straight UTP). Mastervolt can supply
these cables.
˗Up to 63 MasterBus devices can be connected together.
˗MasterBus needs a terminating device on both ends of the network.
˗The electric power for the network comes from the connected devices according to the rule: 1powering / 3 non-
powering. Spread the powering devices over the network
˗Do not make ring networks.
˗Do not make T-connections in the network.
CAUTION!
Never connect a non-MasterBus device to the MasterBus network directly! This will void warranty of all
MasterBus devices connected.
For more details on networks, please contact your Mastervolt supplier.

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CombiMaster 230V Series –User and Installation Manual
5 SETTINGS
Adjustment of the settings of the CombiMaster can be made in two different ways:
•By means of DIP switches.
•From a laptop connected to the CombiMaster via a USB Interface. Some settings, like the AC IN Limit setting for example,
can only be changed in this way.
CAUTION!
Invalid settings of the CombiMaster can cause serious damage to your batteries and/or the connected load!
Adjustment of settings must be carried out by authorized personnel only.
5.1 DIP switch settings
Use a small screwdriver to carefully set the required settings.
DIP switch 1 = CZone network (0) or MasterBus network (1).
DIP switch 2 = MasterBus powering off (0) or on (1)
DIP switches 3 to 10 are either used as CZone address or for MasterBus
battery and 3rd output settings.
Figure 4: DIP switches
In a CZone network:
DIP switch 1 must always be set to the OFF position (0 ).
DIP switch 2 must always be set to the OFF position (0 ).
DIP switches 3 to 10 must match the unique address used in the CZone network (see the CZone Configuration Tool
Instructions manual).
In a MasterBus network:
DIP switch 1 must always be set to the ON position (1 ).
DIP switch 2 is MasterBus Powering ON (1 ) or OFF (0 ). By default this is OFF.
DIP switches 3 to 5 are used for battery type selection:
DIP switch
3
4
5
MasterBus settings (Flooded)1
0
0
0
Flooded (fixed)
0
0
1
AGM (fixed)
0
1
0
Gel (fixed)
0
1
1
MLI (fixed)
1
0
0
Constant voltage (13,25V)2
1
1
1
The following table lists the settings for DIP switches 6 to 9.
DIP switch
6
7
8
9
Inverter frequency 50Hz
Inverter frequency 60Hz
0
1
AC input support mode off
AC input support mode on
0
1
AC voltage input window wide
AC voltage input window narrow
0
1
Energy saving mode off
Energy saving mode on
0
1
5.2 MasterBus configuration
MasterBus is a CAN based data network for communication between Mastervolt devices. When the CombiMaster is
connected, open MasterAdjust on a Windows laptop or notebook connected to the MasterBus network via a MasterBus USB
interface. MasterAdjust software is available as free to download software on the Mastervolt website: www.mastervolt.com.
This tool runs on a Windows laptop or notebook. When the CombiMaster is connected to MasterBus, open MasterAdjust. The
CombiMaster will be recognized by the MasterBus network automatically.
1If all DIP switches are in the OFF position (0
), the settings suit a Flooded battery but
can be changed in MasterAdjust.
2 Constant voltage has no temperature
compensation.

CombiMaster 230V Series –User and Installation Manual
17
5.2.1 Monitoring
A display, like the SmartRemote, Touch 5 (CZone) or EasyView 5 (MasterBus), can be used to monitor the CombiMaster. See
applicable user manuals for details. The following table lists the parameters as shown in MasterAdjust.
Menu
Description
Default
Adjustable range
General
Device state
The operation mode: Standby, Charging, Inverting, Supporting, Alarm
(read only)
AC IN Limit
Fuse setting of the AC input
30A
0-30A
Inverter button
Button to switch off/on the inverter
On
On, Off
Charger button
Button to switch off/on the charger
On
On, Off
DC IN/OUT
Charger state
Charger state: Off, Bulk, Absorption, Float
(read only)
Voltage
Battery voltage
(read only)
Current
Battery current (minus is discharging)
(read only)
Temperature
Battery temperature (if not connected: ---)
(read only)
AC IN
Input Voltage
AC input voltage
(read only)
Input Current
AC input current
(read only)
Input Frequency
AC input frequency
(read only)
AC OUT
Output Voltage
AC output voltage
(read only)
Output Power
AC output power
(read only)
Output Frequency
AC output frequency
(read only)
Installer
Dry contact
Status alarm contact
(read only)
5.2.2 Alarms
The following table lists the parameters as shown in MasterAdjust.
Menu
Description
Temperature high
Internal temperature of the CombiMaster is too high.
Fan error
An error has been detected in the fan.
DC high voltage
Battery voltage is too high.
DC low voltage
Battery voltage is too low.
Overload
The loads exceed the nominal inverter power
Device error
Internal CombiMaster error.
AC IN error
AC input voltage or frequency out of range
5.2.3 History
The following table lists the parameters as shown in MasterAdjust.
Menu
Description
Inverter runtime
Inverter mode operation hours
Charger runtime
Charger mode operation hours
5.2.4 Configuration Settings
The configuration can be done in MasterAdjust, from a laptop or notebook connected to the CombiMaster via a Mastervolt
USB Interface. See applicable user manuals for details. The following table lists the parameters as shown in MasterAdjust.
Notes: - DIP switch settings overrule MasterBus settings. If DIP switches are not in their default setting, the corresponding
MasterBus setting is grayed out.
- To be able to make changes to the configuration via MasterBus, DIP switch 1 must be in the ON position.
Value
Meaning
Default
Adjustable Range
Device
Language
Menu language of this device
English
English, Nederlands
Name
Name of this device. This name will be recognized by all
devices connected to the MasterBus network
CombiMaster
0-12 chars
Device type
The CombiMaster model
(read only)

18
CombiMaster 230V Series –User and Installation Manual
Value
Meaning
Default
Adjustable Range
Lock config.
Option to lock the configuration (installer level)
Off
On, Off
Factory reset
button
Button to restore the configuration's default values
Off
On, Off
Inverter
Energy save
mode
Option to enable Energy save mode
Off
On, Off
Frequency
Inverter frequency
50Hz
50, 60Hz
DC Low on
Voltage level at which the inverter switches on (DC Low off
alarm)
11.5 / 23.0V
10.7-12.5 / 21.4-25.0V
DC Low off
Voltage level at which the inverter switches off
10.2 / 20.4V
10.2-12.0 / 20.4-24.0V
Charger
Max charge cur.
Maximum charging current
60 / 100A
0-60 / 0-100A
Battery type
Select the battery type
Flooded
User defined, AGM,
Gel, Flooded, Li-Ion,
Constant voltage
Constant
voltage
Select the Constant output voltage
13.25V/26.5V
12-15 / 24-30V
Bulk
Voltage
Maximum Bulk voltage
14.4 / 28.8V
12-15 / 24-30V
Minimum time
Minimum time that the charger stays in bulk phase
2 min
0-600 min
Maximum time
Maximum time the bulk phase lasts before the charger
transitions to absorption
480 min
0-600 min
Start bulk time
Voltage level at which to start the bulk timer
13.25 / 26.50 V
12-15 / 24-30V
Absorption
Voltage
Absorption voltage
14.25 / 28.50V
12-15 / 24-30V
Minimum time
Minimum time that the charger stays in absorption phase
15 min
0-600 min
Maximum time
Maximum time that the charger stays in absorption phase
240 min
0-600 min
Return Amps
Return amps (% of maximum charge current)
6%
0-100%
Float
Voltage
Float voltage
13.25 / 26.50V
12-15 / 24-30V
Return to Bulk s
Delay time before the charger returns to Bulk after reaching
the Return to Bulk voltage
30 s
0-600sec
Return to Bulk V
Bulk return voltage. If the battery voltage has dropped below
this voltage, the charger will return to bulk phase
12.80 / 25.60V
12-15 / 24-30V
AC IN
AC IN support
Option to enable AC input support mode
Off
On, Off
Voltage range
AC voltage input window
Wide
Wide, narrow
AC IN limits
AC IN Limit A
Fuse pre-setting A
6A
0-30A
AC IN Limit B
Fuse pre-setting B
10A
0-30A
AC IN Limit C
Fuse pre-setting C
16A
0-30A
Dry contact (installer level)
Function
Select dry contact alarm function
Alarm, Power level
Power Level
Inverter output power level
60%
0-100%
Delay on
Delay on
5s
0-300 seconds
Delay off
Delay off
5s
0-300 seconds
DIP Switches
1234567890
0000000000
Position of the DIP switches
0
0,1
5.2.5 Events –System automation
A CZone/MasterBus device can be programmed to initiate an action at another connected device. This is very helpful in
automation of your system but is not required. In MasterBus this is done by means of event based commands. In the Events
tab you can program the CombiMaster to act as an event source. Events which occur during the operation of the CombiMaster
will then trigger actions from other products. The following tables list the parameters as shown in MasterAdjust.

CombiMaster 230V Series –User and Installation Manual
19
Field
Meaning
Value
Event x source
Select an event that triggers an action, for example Battery pre low.
See Event source list
Event x target
Select the device that should take action, for example the generator
System dependent
Event x command
Select the parameter that must be changed on the target device, for
example Activate.
See command list of the selected
device
Event x data
Data, for example On, is linked to the command.
Off, On, Copy, Copy Invert,
Toggle
Table 1: MasterBus event parameters
The CombiMaster can be configured as an event source. An event source can be used to initiate an event command and an
event action by another device that is connected to the MasterBus.
Event source
Description
Inverting
The CombiMaster is in Inverter mode
Charging
The CombiMaster is in Charger mode
Supporting
The CombiMaster is in Supporting mode
Overload
The loads exceed the nominal inverter power
DC low voltage
The main battery voltage has dropped below the Low bat value
Alarm
A CombiMaster alarm has been triggered
AC IN present
AC input is present
Bulk
Charge phase Bulk
Absorption
Charge phase Absorption
Float
Charge phase Float
AC IN Limit A
AC input is set to 6A
AC IN Limit B
AC input is set to 10A
AC IN Limit C
AC input is set to 16A
Table 2: CombiMaster 230V Series MasterBus Event sources
When the CombiMaster is configured as an event target by another device, this device can initiate an event command and an
event action to be performed by the CombiMaster.
Event command
Description
Inverter
Change the CombiMaster inverter state
Charger
Change the CombiMaster charger state
AC limit A
Fuse setting of the AC input is set to 6A (adjustable)
AC limit B
Fuse setting of the AC input is set to 10A (adjustable)
AC limit C
Fuse setting of the AC input is set to 16A (adjustable)
Bulk
Changes to charge phase Bulk
Absorption
Changes to charge phase Absorption
Float
Changes to charge phase Float
Table 3: CombiMaster 230V Series MasterBus Event commands
5.3 CZone configuration
The CZone®network is an NMEA 2000-compliant CAN-based system. When the CombiMaster is connected, open the CZone
Configuration Tool on a Windows laptop or notebook connected to the CZone network. Either do the configuration while
connected to the network or use a prepared configuration file (.zcf). For detailed information on the configuration also see
section 5.2.4.
For more information, please refer to the CZone®Configuration Tool Instruction manual.

20
CombiMaster 230V Series –User and Installation Manual
6 OPERATION
6.1 Switching On / Charge only
The main switch on the bottom of the CombiMaster has two positions:
•Inverter and charger on (I)
•Charge only, inverter off ().
Note: When the main switch is in this position (), it consumes 1mA DC power when not connected to AC. Switching off
the inverter remotely, increases the DC power consumption. If it is necessary to put the CombiMaster out of operation, for
winter storage for example, it is strongly recommended to switch the inverter off by the main switch.
6.2 Status LEDs
AC In
Inverter
Charger






Figure 5: status LEDs
Off:
- : No AC input
- : Inverter off
- : Charger off
Green on:
- : AC input OK
- : Inverter on
- : Charger on
- : Charger in bulk phase
- : Charger in absorption phase
- : Charger in float phase
- +: AC IN support mode
Green blinking:
- : Inverter power save mode active
Red on:
- : AC input out of range
- : battery voltage low warning/shutdown
- : battery voltage high causing shutdown
Red blinking:
˗: AC output overload
˗+: Shutdown by any other error, including
overtemperature of the CombiMaster
˗: Battery temperature (sensor) error
Refer to the fault finding table on page 23 for possible causes of
problems.
6.3 3-step+ charge process
Battery charging is accomplished in three automatic stages: BULK, ABSORPTION and FLOAT. The first step 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 BULK voltage. The duration of this phase depends on the
ratio of battery to charger capacity, and the battery state of charge.