Mastervolt MasterShunt 500 User manual

USER’S MANUAL / GEBRUIKERSHANDLEIDING
BETRIEBSANLEITUNG / MANUEL D’UTILISATION
MANUAL DE UTILIZACION / INSTRUZIONI PER L’USO
MasterShunt
500
ENHANCED BATTERY MONITOR WITH INTEGRATED MAIN FUSE
Software from v1.13
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: [phone]
Fax.: [phone]
www.Mastervolt.com Copyright © 2011 Mastervolt, v 3.3 February 2011
ENGLISH: PAGE 1
NEDERLANDS: PAGINA 29
DEUTSCH: SEITE 57
FRANÇAIS: PAGINA 85
CASTELLANO PÁGINA 113
ITALIANO P
Á
GINA 141

QUICK REVIEW
2February 2011 / MasterShunt / EN
QUICK REVIEW
The MasterShunt is a battery monitor. It provides battery information and power to the
MasterBus network.
A read out device like the MasterView Easy (showing a part of the MasterShunt monitoring
menu below) or a pc with MasterView System software can be used to show the battery
information.
The battery monitoring functions are divided over different menus:
The main menu shows the battery state.
The historical menu shows the data from previous charging cycles.
The configuration menu enables you to alter MasterShunt settings.
Th l h
th l d th i t t
M ASTERVOLT
M ASTERVOLT
M ASTERVOLT
M ASTERVOLT
Off
On
State of
Charge
100%
Cap.
consumed
0Ah
Go to
Alarm
Go to
Configuration
MSH MasterShunt
MSH MasterShunt
MSH MasterShunt
MasterShunt
MV Easy
100%
Distribution
OK
On
Remaining
12:34:56
Remaining
12:34:56

CONTENTS
EN / MasterShunt / February 2011 3
CONTENTS: v 3.3 February 2011
QUICK REVIEW ........................................................................................................................................................ 2
1GENERAL INFORMATION............................................................................................................................. 4
2SAFETY GUIDELINES AND MEASURES ..................................................................................................... 5
2.1 Warnings and symbols ....................................................................................................................... 5
2.2 Use for intended purpose ................................................................................................................... 5
2.3 Organizational measures.................................................................................................................... 5
2.4 Maintenance and repair...................................................................................................................... 5
2.5 General safety and installation precautions ....................................................................................... 5
2.6 Warning regarding the use of batteries. ............................................................................................. 5
3OPERATION ................................................................................................................................................... 6
3.1 Introduction ......................................................................................................................................... 6
3.2 Monitoring your battery set ................................................................................................................. 6
3.3 Features.............................................................................................................................................. 6
3.4 MasterBus displays............................................................................................................................. 6
3.5 Communication LEDs......................................................................................................................... 7
4MASTERBUS.................................................................................................................................................. 8
5INSTALLATION ............................................................................................................................................ 10
5.1 Things you need for installation........................................................................................................ 10
5.2 Installation step by step .................................................................................................................... 10
5.3 Commissioning ................................................................................................................................. 11
5.4 System examples ............................................................................................................................. 11
5.5 Replacing the fuse............................................................................................................................ 12
6FIRST START UP ......................................................................................................................................... 13
7PARALLEL USE ........................................................................................................................................... 14
8MONITORING MENU.................................................................................................................................... 15
9ALARM MENU .............................................................................................................................................. 16
10 HISTORY MENU ........................................................................................................................................... 17
11 CONFIGURATION ........................................................................................................................................ 18
12 EVENTS ........................................................................................................................................................ 20
13 ADDITIONAL INFORMATION...................................................................................................................... 21
14 TROUBLE SHOOTING ................................................................................................................................. 23
15 SPECIFICATIONS ........................................................................................................................................ 25
16 EC DECLARATION OF CONFORMITY ....................................................................................................... 27

GENERAL INFORMATION
4February 2011 / MasterShunt / EN
1 GENERAL INFORMATION
1.1 USE OF THIS MANUAL
Copyright © 2011 Mastervolt. All rights reserved.
Reproduction, transfer, distribution or storage of part
or all of the contents in this document in any form
without the prior written permission of Mastervolt is
prohibited.
This manual serves as a guideline for the safe and
effective operation, maintenance and possible
correction of minor malfunctions of the MasterShunt.
This manual is valid for the following models:
Description Part number
MasterShunt 77020100
Every person who works on or with the MasterShunt
must be completely familiar with the contents of this
manual, and has to follow the instructions contained
herein carefully.
Installation of, and work on the MasterShunt, 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 includes 28 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.
CAREFUL!
Additional warranty agreements, like
“Mastervolt system warranty” may contain
restrictions which forbid resetting of historical data,
as described in chapter 11.
1.3 QUALITY
During their production and prior to their delivery, all
of our units are exhaustively tested and inspected.
The standard guarantee period is two years.
1.4 VALIDITY OF THIS MANUAL
All of the specifications, provisions and instructions
contained in this manual apply solely to standard
versions of the MasterShunt delivered by Mastervolt.
1.5 LIABILITY
Mastervolt can accept no liability for:
•consequential damage due to use of the
MasterShunt;
•possible errors in the manuals and the results
thereof.
CAREFUL!
Never remove the type number plate.
Important technical information required for service,
maintenance & secondary delivery of parts can be
derived from the type number plate.
1.6 CHANGES TO THE MASTERSHUNT
Changes to the MasterShunt may be carried out only
after obtaining the written permission of Mastervolt.

SAFETY GUIDELINES AND MEASURES
EN / MasterShunt / February 2011 5
2 SAFETY GUIDELINES AND MEASURES
2.1 WARNINGS AND SYMBOLS
Safety instructions and warnings are marked in this
manual by the following pictograms:
CAREFUL!
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 MasterShunt if the user does not (carefully)
follow the procedures.
A procedure, circumstance, etc which
deserves extra attention.
2.2 USE FOR INTENDED PURPOSE
1 The MasterShunt is constructed as per the
applicable safety-technical guidelines.
2 Use the MasterShunt only:
•in a technical correct condition;
•in a closed, well-ventilated room, protected
against rain, moist, dust and condensation;
•observing the instructions in the user’s
manual.
WARNING
Never use the MasterShunt in locations
where there is danger of gas or dust
explosion or potentially flammable
products!
3 Use of the MasterShunt 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:
•have access to the user's manual;
•be familiar with the contents of this manual. This
applies in particular to chapter 2, Safety
Guidelines and Measures.
2.4 MAINTENANCE AND REPAIR
1 If the electrical installation is switched off during
maintenance and/or repair activities, it should be
secured against unexpected and unintentional
switching on:
•switch off all charging systems;
•switch off the connection with the batteries;
•be sure that third parties cannot reverse the
measures taken.
2 If maintenance and repairs are required, only
use original spare parts.
2.5 GENERAL SAFETY AND INSTALLATION
PRECAUTIONS
•Connection and protection must be done in
accordance with local standards.
•Do not work on the MasterShunt or system if it is
still connected to a current source. Only allow
changes in your electrical system to be carried
out by qualified electricians.
•Check the wiring at least once a year. Defects
such as loose connections, burned cables etc.
must be corrected immediately.
2.6 WARNING REGARDING BATTERY USE
Excessive battery discharge and/or high charging
voltages can cause serious damage to batteries. Do
not exceed the recommended limits of battery
discharge level. Avoid short circuiting batteries, as
this may result in explosion and fire hazard.
Installation of the batteries and adjustments to the
MasterShunt should only be undertaken by
authorised personnel!

OPERATION
6February 2011 / MasterShunt / EN
3 OPERATION
Figure 1: Overview of the MasterShunt
1. Positive battery pole at battery side
2. Fastening screw on both sides (turn
90 degrees to loosen top)
3. Negative battery pole at battery side
4. MasterBus connector
5. Temperature sensor connector
6. Mounting hole for M8 socket screw
7. MasterBus connector
8. Negative battery pole at load side
9. Flashing communication LED (on
both sides)
10. Positive battery pole at load side
11. Internal fuse
3.1 INTRODUCTION
The Mastervolt MasterShunt provides extended
information about the status of your batteries. This
information includes reading voltage, current, Ah,
time remaining and remaining capacity in
percentage terms.
3.2 MONITORING YOUR BATTERY SET
Your battery bank is monitored in the most accurate
way, i.e. by measuring the voltage and the
(dis)charge current by means of a shunt. Important
is the time factor included in the measurements. This
enables the MasterShunt to determine the state of
charge very precisely.
3.3 FEATURES
•Monitoring of a battery or battery bank
(12/24/48V DC)
•Easy installation
•Can be installed in parallel for larger systems
•Shunt (precise measuring of the battery bank)
•State of charge
•Automatic calculation of Charge Efficiency Factor
•Extensive historical data
•MasterBus network support (Refer to chapter 4
for more information on how MasterBus works)
•Integrated main system fuse in positive DC line
•Solid housing of the shunt with isolation of the
DC connections.
3.4 MASTERBUS DISPLAYS
Mastervolt offers several ways of displaying your
MasterBus data. Shown is the MasterView Easy
panel.
Figure 2: MasterView Easy panel
The MasterView Easy can be connected to one or
more MasterShunts or any other MasterBus product
for monitoring and control.

OPERATION
EN / MasterShunt / February 2011 7
Another way of displaying and setting values is the
MasterAdjust software, shown for MasterShunt
application.
Figure 3: MasterAdjust software
3.5 COMMUNICATION LEDS
The MasterShunt features two LEDs, between the
DC connectors at the load side and battery side (see
also figure 1). These two green LEDs blink together
in three modes:
Mode Blinking Meaning
1 Simultaneously short, 10
second intervals
No MasterBus
activity
2 Simultaneously,
other than 10 second
intervals
MasterBus
activity
3 Alternately, regular
intervals of half a second
Alarm situation

MASTERBUS
8February 2011 / MasterShunt / EN
4 MASTERBUS
4.1 WHAT IS MASTERBUS?
All devices that are suitable for
MasterBus are marked by the MasterBus
symbol.
MasterBus is a fully decentralized data network for
communication between the different Mastervolt
system devices. The communication network is
CAN-bus based and has proven a reliable bus
system in automotive applications. MasterBus is
used as power management system for all
connected devices, such as the inverter, battery
charger, generator and many more. This gives the
possibility for communication between the connected
devices, for instance to start the generator when the
batteries are low.
MasterBus reduces complexity of electrical systems
by reducing the amount of cables. All system
components are simply chained together. Therefore
each device is equipped with two MasterBus data
ports. When two or more devices are connected to
each other through these data ports, they form a
local data network, called the MasterBus network.
The results are a reduction of material costs as only
a few electrical cables are needed and less
installation time.
For central monitoring and control of the connected
devices Mastervolt offers a wide range of panels
which show full status information of your electrical
system at a glance and a push of a button. Four
different panels are available, from the small
Mastervision compatible 120 x 65mm LCD screen
up to the full colour MasterView System panel. All
monitoring panels can be used for monitoring,
control and configuration of all connected MasterBus
equipment.
New devices can be added to the existing network in
a very easy way by just extending the network. This
gives the MasterBus network a high degree of
flexibility for extended system configuration, not only
today, but in the future as well!
Mastervolt also offers several interfaces, making
even non-MasterBus devices suitable to operate in
the MasterBus network. For direct communication
between the MasterBus network and a product
which is not from Mastervolt, the Modbus interface is
recommended.
CAREFUL!
Never connect a non-MasterBus device to
the MasterBus network directly! This will
void warranty of all MasterBus devices
connected.
4.2 EVENT BASED CONFIGURATION
Event based configuration can be very helpful in
automation of your system. However it is not
required for battery monitoring only.
An event is a condition to be met at which you want
another device to perform a task.
Example: if the State of Charge of the batteries is
too low, you might want to correct this situation by
starting a generator to power the charger. The
MasterShunt event source Battery Low (State of
Charge is too low) can be used to start the
generator.
The MasterShunt has 9 parameters (like Battery low)
available to serve as an event source. These are the
7 alarm messages and 2 timers. See chapter 9 for
alarm messages and chapter 12 for information
regarding events.

MASTERBUS
EN / MasterShunt / February 2011 9
4.3 HOW TO SET UP A MASTERBUS
NETWORK
Every device that is suitable for the MasterBus
network is equipped with two data ports. When two
or more devices are connected to each other
through these ports, they form a local data network,
called the MasterBus.
Keep the following rules in mind:
Figure 4: MasterBus cable
Figure 5: Two terminators
Figure 6: Power supply
Figure 7: No ring networks
Figure 8: No T-connections
As with all high speed data networks, MasterBus
needs a terminating device on both ends of the
network.
Terminating
device
Terminating
device
OK
Connections between the devices are made by
standard straight UTP patch cables. Mastervolt
can supply these cables with lengths of
0.2 to 25 m.
OK
1-8
Do not make T-connections in the network.
Do not make ring networks.
The electric power for the network comes from
the connected devices.
At least one device in the network should have
powering capabilities (see specifications).
One powering device can power up to three non-
powering devices.
As all powering devices are galvanically isolated,
multiple powering devices are allowed.
OK

INSTALLATION
10 February 2011 / MasterShunt / EN
5 INSTALLATION
WARNING
During installation and commissioning of
the MasterShunt, the Safety Guidelines
and Measures are applicable at all times. See
chapter 2 of this manual.
CAREFUL!
Wrong connections may cause damage to
the MasterShunt and other equipment as
well, which is not covered by warranty!
NOTE:
For correct measurements the
MasterShunt must be placed closest possible to the
batteries.
5.1 THINGS YOU NEED FOR INSTALLATION
Tools:
A cross-head screw driver
2 mm and 5 mm flat blade screwdrivers.
Hexagonal socket wrench size 6 mm
A complete set of spanners, pliers and wrenches
may be helpful during the installation of the
MasterShunt.
CAREFUL!
Use isolated tools!
Materials needed:
;MasterShunt
;MasterBus cable, 6 metres
;Terminator for MasterBus network
;Temperature sensor to fasten on top of the
battery
;Two translucent end pieces
;Four DC cones
;One translucent mid piece for connection to
another MasterConnect device.
;Four M8 bolts with washer to fasten the DC
wiring.
Two heavy duty battery cables shortest possible,
finished with cable lugs. Mastervolt advises to
use 70 mm2cables on both the battery side and
load side of the MasterShunt. In an extended
system with long cable runs the cable size can
be increased to 95 mm2. In systems with lower
maximum currents (<300A) the cable cross
section can be smaller, yet at least 25 mm2.
Cable thickness must be in accordance with the
electrical installation.
5.2 INSTALLATION STEP BY STEP
Disconnect the electrical power:
•Switch off all consumers,
•Switch off all charging systems.
•Disconnect the battery poles, first the positive
pole.
•Check with a suitable voltmeter whether the
entire DC installation is voltage free.
Figure 9: Installation of the MasterShunt
1 Battery side
2 MasterShunt
3 Load side
4 Charger and battery load
5 Battery bank
6 Terminator for MasterBus
7 Terminator for MasterBus
8 DC wiring
9 MasterBus wiring
_
+
_
MasterBus
23
6
1
5
7
9
8
AB
DC
4

INSTALLATION
EN / MasterShunt / February 2011 11
5.2.1 DC wiring installation
NOTE:
Remember to put the cones around the
cables before connecting!
Step 1 Position the MasterShunt between the
battery and the load/ charger.
Connect the loose positive battery cable to the upper
left connection(A) and the positive load cable to the
upper right connection(B).
Step 2 Connect the negative battery cable to D and
the negative load cable to C.
Use cable lugs to accomplish sufficient electrical
contact between the wiring and the MasterShunt.
The recommended tightening torque is 15-20 Nm.
NOTE:
The charger must be connected at the load
side of the MasterShunt!
CAREFUL!
Leave the positive battery cable
disconnected from the battery.
5.2.2 MasterBus wiring installation
Connect two or more MasterBus devices with
MasterBus cable. Put a MasterBus terminator at
both ends of the network. Refer to section 4.2 for
further details on how to set up a MasterBus
network.
NOTE:
Always place a terminator at both ends of
the MasterBus network.
5.3 COMMISSIONING
Check if all wiring is OK. Then:
•(Re)connect the positive battery cable.
•Proceed with chapter 6, “FIRST START UP”
Figure 10: Commissioning
5.4 SYSTEM EXAMPLES
Figure 11 shows an example of the MasterShunt in
combination with a charger and a distribution panel.
Note the position of the charger at the load side and
the MasterBus cables between the MasterBus
devices.
Figure 11: System example 1
1 MasterShunt
2 Charger
3 Switchboard
4 Temperature sensor on battery
5 Terminator for MasterBus
6 MasterView Easy display
7 Temperature sensor wiring
8 DC wiring
9 MasterBus wiring
10. DC Distribution 500,
connected via MasterConnect
+
_
+_

INSTALLATION
12 February 2011 / MasterShunt / EN
5.5 REPLACING THE FUSE
Installed in the MasterShunt 500 is a T-500A fuse
(Part number 77049000). If the DC current through
the MasterShunt exceeds averages of above 500A
during a longer period, the internal fuse will blow.
Follow the instructions carefully to replace the fuse.
Disconnect the electrical power:
•Switch off all consumers.
•Switch off all charging systems.
•Disconnect the positive battery poles.
WARNINGS
Changing the internal fuse of the
MasterShunt should be carried out by
qualified personnel only!
Installation by unqualified personnel may
result in major personal and material
damage.
Only replace the blown fuse by a fuse of
the same rating!
If a fuse has blown, a high current has
flowed through several parts of the
MasterShunt. As a result these parts and
especially the fuse can be hot! Avoid
burns!
Figure 12: Internal fuse in MasterShunt
•Turn the two top screws 90 degrees to release
the locking pins from the holes (1). Take off the
upper casing.
•Remove the two fuse fastening bolts (2).
•Take out the fuse (3). Mind possible hot parts!
•Put the new fuse in place.
•Fasten the new fuse with the two bolts. The
tightening torque should be 15-20 Nm.
•Close the casing.
•Reconnect the battery pole.
•Switch on the consumers one at a time and
monitor the current at each switch on. Refer to
the manuals of these devices to check whether
they are functioning correctly.
T500
2
1
3

FIRST START UP
EN / MasterShunt / February 2011 13
6 FIRST START UP
At first start up with the MasterShunt installed,
MasterBus (via a MasterView display or the
MasterAdjust software) will guide you through the
following settings. See the concerning manual for
display navigation.
Variable Description Factory sett. Range
Basic set up
Language Change the language at first start up. See chapter 5
for more instructions.
English 11 languages, see
section 14.1
Battery capacity Set the battery capacity to enable the MasterShunt
calculating the state of charge.
Value from First
Setup
30-10000Ah
Battery type Four different battery types can be selected. The
spiral battery belongs to the AGM batteries.
Value from First
setup
Gel, AGM, Wet, Li-
ion battery
Nominal voltage Nominal battery voltage, set at first set up. Value from First
setup
12V ,24V, 48V
Advanced mode
Reverse IN/OUT Use this option for reversing input and output, when
you installed the load at the left of the MasterShunt.
Off Off, On
Mode Use this option for parallel (chapter 7) or single
device configuration. “I + U only: is an option to only
measure the current and voltage with the
MasterShunt configured as single device.
Single device I + U only, Single
device, Parallel
mode.
Complete
Complete It is still possible now to check your settings. When
ready, press “Complete” to finish the first start up.
If you want to alter a first start up variable
afterwards, resetting the settings is necessary.

PARALLEL USE
14 February 2011 / MasterShunt / EN
7 PARALLEL USE
For load currents which exceed 300A continuous
current, more than one MasterShunt can be installed
to monitor the same battery (bank). The
MasterShunts are then configured in parallel to the
battery, like shown. Figure 13 shows the parallel
configuration of two MasterShunts (3) and (4) and
other products.
1. Masterview Easy display
2. Bow thruster
3. Mastershunt in parallel 1, in Reversed setting
4. Mastershunt in parallel 2
5. DC Distribution 500
6. Digital DC 10x10A
7. Battery
8, 9. MasterBus Terminator
For parallel setup of two MasterShunts, follow next
steps:
•Reset both Mastershunts to factory settings;
•During First start up select Advanced mode/
Parallel mode on one of the MasterShunts.
•Enter the serial number(s) of the other
MasterShunt(s), refer to figure 14. These
MasterShunt(s) will be the slave(s).
The measurements of all parallelled MasterShunts
are combined and shown as one MasterShunt.
The currents however are shown separately, see
figure 16. This means, renaming the MasterShunts
can be convenient (see figure 15).
Figure 14: Parallel setting Figure 15: Renaming MasterShunts
Figure 16: MasterView display
Bow
thruster
0.0 A
MSH MasterShunt
Inverter
- 8.0 A
Figure 13: System example 2

FIRST START UP
EN / MasterShunt / February 2011 15
8 MONITORING MENU
The main menu shows the monitoring functions
available with the MasterShunt. It offers a quick
status overview of the battery bank. None of the
displayed information can be modified at this menu.
Message Description
State Of Charge
[%]
This readout shows the actual amount of energy left in the battery, related to the battery
capacity you selected.
Remaining
[hh:mm:ss]
The time remaining before the battery will be empty. Maximum value: 480 hrs (20 days).
Under 24 hrs it shows hh:mm:ss, above that dd:hh. During charging it shows “--:--:--“.
This value depends on the current drawn.
Cap. consumed Capacity consumed shows how many Amp-hours (Ah) have been consumed from the
battery bank.
Battery [V] Shows the measured voltage at the MasterShunt.
Battery [A] Shows the measured current through the poles of the MasterShunt. Charging appears
as positive current, discharging as negative current.
Battery [°C]/[°F] Shows the temperature measured by the temperature sensor, connected to MasterShunt
For language setting American the temperature is displayed in °F. If a charger has been
connected to the MasterShunt, this temperature sensor will be relevant for charge
voltage correction!
Time If you have set the Time, this screen shows hh:mm:ss. Refer to chapter 11 for settings.
Date If you have set the Date, this screen shows dd:mm:yyyy. Refer to chapter 11 for settings.

ALARM MENU
16 February 2011 / MasterShunt / EN
9 ALARM MENU
The MasterShunt features six different alarm
parameters which can be configured to custom
chosen values. If the alarm conditions are met, i.e. if
the chosen value has been reached, the MasterBus
based alarm function can trigger different tasks. For
instance if the parameter “Battery low” has been set
to 35% and the battery voltage is being discharged
to this value, the alarm can trigger a generator to
start and recharge the battery. See also chapter 12,
Event 1 and 2.
Message Description
General
Voltage high When the battery voltage rises above the high voltage level (15V preset value), the alarm
function will be triggered without delay.
Fuse alarm This function is triggered when the internal MasterShunt fuse has blown.
Battery low This function will be triggered when the State Of Charge (SOC) drops below a preset value,
35% default. At this value for instance the refrigerator can be switched off to save the
battery when other systems fail to recharge it sufficiently.
Voltage low If the battery voltage drops below a preset value, 10V default, this alarm is triggered.
Battery pre low To prevent the battery from draining, a SOC value above Battery low can be set (40%
default). At this level for instance a generator can be started to recharge the batteries.
Voltage pre low To prevent the battery from becoming discharged too deeply, a value above Voltage low
can be set (11V default). At this event for instance a heavy consumer can be switched off.
Refer to chapter 11 for alarm settings.
Figure 17: Battery alarm function
Battery voltage
State of Charge
State of Char
g
e
Battery voltage
35%
80%
100%
10,0/20,0/
40,0V
LOW DELAY
Time
SOC FULL
LOW VOLTAGE
SOC LOW LEVEL
Alarm function
activated

HISTORY MENU
EN / MasterShunt / February 2011 17
10 HISTORY MENU
To know the history of your battery bank can be very
useful. It will help you to check if the battery capacity
suits the application and when the battery needs to
be replaced. For this you need to know the number
of battery charging cycles and the efficiency (C.E.F.)
of the battery. The memory back up system of the
MasterShunt saves this data even if the battery was
completely discharged or disconnected.
Message Description
Standard hist
Days running The total number of days since the MasterShunt was powered.
Days since low This function tells you when the battery alarm was triggered for the last time.
See chapter 11 for explanation of the battery alarm function.
Last time 100% The number of days since the battery bank was charged up to 100% for the last time.
To prevent damage the batteries must be charged to the full 100% regularly, at least
every 30 days.
Battery usage The total number of charging cycles of the battery bank.
Battery abuse Slow and deep discharges below the battery’s end voltage can reduce the expected
lifetime of your batteries dramatically. This screen shows the number of battery abuse
cycles. A large number of abuse cycles might indicate small users that stayed
connected during a long period (for instance during wintertime). Get your electrical
installation examined by a qualified installer if abuse cycles happen more than once!
Discharged hours The total number of hours (after a delay of 12 hours) when the SOC of the battery
bank was below 35%. This value should be as low as possible, as batteries should be
recharged immediately after a discharge.
Calculated CEF The CEF that was calculated for the battery bank. This value is used for the
calculation of the consumed Amphours and the time remaining function (chapter 7),
See chapter 13.2 for explanation of the CEF.
Total consumed The total amount of Amphours consumed from the battery bank. It is like the km
counter of your car. But like a car, not only the number of km’s tell something about its
condition. The condition is also influenced by the way the car was treated. So it does
for your batteries.
Restarts
Number of resets The number of times the setup has been reset. Factory setting = 0. See chapter 11 for
instructions how to reset the setup. Resetting clears all history values except for this
counter which is increased by one.
Power failures Counts the number of times the MasterShunt has been disconnected from the battery.
Averages
Avg. discharge The average discharge of the battery bank. This value should be less than half of the
installed battery capacity, else the capacity installed is too low.
Min/max history
Lowest Ah Shows the deepest discharge. The deepest discharge should never be below the
rated capacity of the battery as specified by the battery manufacturer.
Volt at low Ah Shows the voltage at the moment of recording the deepest discharge.
Highest voltage Shows the highest voltage that was recorded. This voltage should never exceed the
maximum charging voltage as specified by the battery manufacturer.
> 100A [s] Total amount of seconds the current has exceeded 100A since first start up.
> 200A [s] Total amount of seconds the current has exceeded 200A since first start up.
> 500A [s] Total amount of seconds the current has exceeded 500A since first start up.

CONFIGURATION
18 February 2011 / MasterShunt / EN
11 CONFIGURATION
The Configuration Menu is used to adjust general
settings like displayed language, energy save mode
and advanced settings for your battery bank. Here
you can also opt for resetting the MasterShunt to the
factory settings. A MasterAdjust example is shown in
figure 18.
Figure 18: MasterAdjust Configuration screen
Variable Description Factory sett.* Range
General
Language
Change the language after your setting at first start up. See chapter 5 for more instructions. English 11 languages, see section 14.1
Device name
Name of the battery bank; example: POWER BANK. MasterShunt Any maximum 12 character name
Date set. year Set the MasterShunt clock year. 2000 2000-2200
Date set. Month Set the MasterShunt clock month. February February-December
Date setting day Set the MasterShunt clock day. 1 1-31
Clock (hour) Set the MasterShunt clock hour. 0 0-23
Clock (min) Set the MasterShunt clock minute. 0 0-59
Battery
Battery capacity You see the battery capacity selected during
FIRST START UP. Refer to chapter 6. To change
this value you need to reset the setup.
Value from First
Setup 30-10000Ah
Battery type You see the battery type selected during FIRST
START UP. Refer to chapter 6. To change this
value you need to reset the setup.
Value from First
setup Gel, AGM, Wet battery, Li-ion
Nominal voltage Nominal battery voltage. To change this value you
need to reset the setup. Value from First setup 12V ,24V, 48V
Peukert Peukert coefficient. Do not change this setting
without extended knowledge of the installed
batteries. See chapter 13.
Wet: 1.27
Gel: 1.27
AGM: 1.27
Li-ion: 1.00
1,00-2,50
Amp=Full Charge amps for Battery full. Several parameters
must be met before the MasterShunt will consider
the battery fully charged. See section 12.5.
2.0% 0.1-10%

CONFIGURATION
EN / MasterShunt / February 2011 19
Variable Description Factory sett.* Range
Float voltage
This voltage must be set just below the lowest float voltage of all system charging devices at
operating temperature. Lower this value by 0.1V if
your MasterShunt does not return to 100% after a
long period of charging. Float voltage is used to
determine if the battery is fully charged (refer to
section 13.4).
Wet batteries,
Gel, AGM:
13.25/26.5/53.0
V,
Li-ion:
13.5/27.0/54.0V
12.0-15.0V/
24.0-30.0V/
48-60V
Absorption
This value is set to the recommended absorption voltage. Wet, Gel, AGM: 14.25/28.5/57.0
V, Li-ion:
14.6/29.2/58.4V
12.0-15.0V/24.0-
30.0V/48-60V
Reset setup will
void warranty This screen warns you for the possible consequences of resetting the setup.
Reset setup
Reset the complete setup of the MasterShunt, this will reload all default factory settings. Careful: resetting the setup voids your system warranty!
Alarm levels
Voltage pre low
To prevent the battery from becoming too deeply discharged, a value above Voltage low can be set.
At Voltage pre low for instance a generator can be
started.
Wet, Gel, AGM:
11.0/22.0/44.0V,
Li-ion:
11.5/23.0/46.0V
10-15V/
20-23V/
40-60V
Voltage low
The low voltage set point marks the voltage threshold of too low battery. If the battery voltage
drops below this value, the alarm function will be
activated after the Low delay, see below.
Wet, Gel, AGM:
10.0/20.0/40.0V,
Li-ion:
11.0/22.0/44.0V
10-15V/
20-23V/
40-60V
Battery pre low
Set the State Of Charge value below which the alarm function Battery pre low will be triggered,
default 40%. Note: the Battery pre low level is
higher than Battery low, to prevent the Battery low
situation.
40%
Li-ion: 25% 10-90%
Battery low
Set the State Of Charge value below which the alarm function Battery low will be triggered, 35 %
default.
35%
Li-ion: 20% 10-90%
Battery full
Set the State Of Charge value at which the alarm function Battery full will be triggered, default
100%. It could be used to switch off a generator.
100% 30-100%
Low delay
The “alarm delay time” can be set to delay the alarm function when the DC-voltage drops below
the Voltage low set point or the SOC drops below
the Battery low level. This delay prevents a false
alarm as a result of a temporary voltage drop,
after switching on heavy loads.
30 seconds 0-100 seconds
Voltage high
When the battery voltage rises above this level, the alarm function will be triggered. Wet, Gel, AGM: 15.0/30.0/60.0V,
Li-ion:
15.5/31.0/62.0V
13.0-18.0/
26.0-36.0/
52.0-72.0V.
High delay
The “alarm delay time” can be set to delay the alarm function when the DC-voltage rises above
the Voltage high set point. As high voltage is
accompanied by a high risk the factory setting for
high delay is 0 seconds.
0 seconds 0-60 seconds
Timers
Timer 1 Select
Select the day at which timer 1 is activated. Disabled Disabled, Sun..Sat, Weekend, Daily,
Monthly
Timer 1 On hour Set the hour at which timer 1 will start. 0 0…23
Timer 1 On min Select the minute at which timer 1 will start. 0 0…59
Timer 1 Off hour Select the hour at which timer 1 will stop. 0 0…23
Timer 1 Off min Select the minute at which timer 1 will stop. 0 0…59
Stop when full Has for instance a generator stop when the
battery is full before timer 1 elapsed.
Timer 2 On hour Set the day at which timer 2 is activated, only after
you enabled timer 1. 0 See timer 1
Timer 2
variables See timer 1 0 0…23
* The factory settings for Li-ion batteries are applicable for the Mastervolt Li-ion batteries only. For other Li-ion
batteries, these settings should be adjusted.

CONFIGURATION
20 February 2011 / MasterShunt / EN
12 EVENTS
Variable Description Fact sett. Range
Events
Event 1 source Select an event to serve as Event 1. Example:
Battery pre low can trigger a generator to start and
Battery full can trigger it to stop.
Disabled Refer to section 12.1
Event 1 target Select a device to perform a task if Event 1 takes
place. Example: generator
Select… System dependent.
Event 1 command Select a command on the device you chose. Select… System dependent.
Event 1 data Data is linked to the command, see figure 19. Off See figure 19.
Event 2 source This screen appears after enabling Event 1. Select
an event to serve as Event 2.
Disabled
Input is a pulse followed by a longer signal (1/0).
This could be a short period followed by a long
period of the Event source Battery low. The figure
shows a pulse switch to illustrate the input.
On changes the status to On at the first signal.
Off changes the status to Off at the first signal.
Copy lets the status follow the input.
Copy Invert lets the status follow the opposite of the
input.
Toggle changes the status at the first signal and
back at the second signal. It is often used in
combination with a pulse switch.
12.1 EVENTS WITH MASTERSHUNT AS EVENT SOURCE
Disabled No events configured
Voltage pre low, Voltage low, Voltage high, Battery pre low,
Battery low, Battery full,
Refer to chapter 9 Alarm menu
Battery 20%, 40%, 60%, 80%, 100% Battery SOC in % of capacity
Charging The MasterShunt measures charging current.
Timer 1, 2 Refer to chapter 11, Timer settings
12.2 EVENTS WITH MASTERSHUNT AS EVENT TARGET
There are no events with the MasterShunt acting as an event target.
Figure 19: Explanation of the function Event data