Mastervolt MASS SINE ULTRA User manual

MULTIPLE UNITS
MASS SINE ULTRA
Parallel or three-phase configurations
INSTALLATION MANUAL
10000019321/00

2
Mass Sine Ultra –Installation Manual Multiple Units
TABLE OF CONTENTS:
1GENERAL INFORMATION..............................................................................................................................................3
1.1 Use of this manual..............................................................................................................................................3
1.2 Validity of this manual.........................................................................................................................................3
1.3 Purpose of a multiple configuration ....................................................................................................................3
1.4 General installation guidelines............................................................................................................................3
1.5 Overview Mass Sine Ultra..................................................................................................................................3
2FLOWCHART ..................................................................................................................................................................4
3PARALLEL CONFIGURATION WITH MASTERADJUST...............................................................................................5
3.1 Materials needed................................................................................................................................................5
3.2 Preparations.......................................................................................................................................................5
3.3 DC wiring of parallel units...................................................................................................................................6
3.4 AC wiring of parallel units...................................................................................................................................6
3.5 Network wiring of parallel units...........................................................................................................................7
3.6 Configuration with MasterAdjust.........................................................................................................................7
3.7 Initial start-up......................................................................................................................................................9
4PARALLEL CONFIGURATION WITH DIP SWITHES...................................................................................................10
4.1 Materials needed..............................................................................................................................................10
4.2 Preparation.......................................................................................................................................................10
4.3 DC wiring of parallel units.................................................................................................................................10
4.4 AC wiring of parallel units.................................................................................................................................11
4.5 Network wiring of parallel units.........................................................................................................................11
4.6 Configuration with DIP switches.......................................................................................................................11
4.7 Initial start-up....................................................................................................................................................12
5THREE-PHASE CONFIGURATION WITH MASTERADJUST......................................................................................13
5.1 Materials needed..............................................................................................................................................13
5.2 Preparations.....................................................................................................................................................13
5.3 DC wiring of three-phase units.........................................................................................................................13
5.4 AC wiring of three-phase units .........................................................................................................................14
5.5 Network wiring of three-phase units .................................................................................................................14
5.6 Configuration with MasterAdjust.......................................................................................................................14
5.7 Initial start-up....................................................................................................................................................16
6TROUBLESHOOTING................................................................................................................................................... 17

Mass Sine Ultra –Installation Manual Multiple Units
3
1 GENERAL INFORMATION
1.1 Use of this manual
This installation manual must be read in combination with the standard user manual that is supplied with each unit.
CAUTION!
Read chapter SAFETY GUIDELINES AND WARNINGS of the user manual
that comes with the unit.
Every person who works with the Mass Sine Ultra should be familiar with the contents of this manual and must carefully follow
the instructions contained herein.
1.2 Validity of this manual
This installation manual serves as a guideline for the safe and effective installation and commissioning of the Mass Sine Ultra
(MSU) in a multiple unit configuration. This can be a parallel configuration, a three-phase configuration, or a combined three-
phase and parallel configuration.
1.3 Purpose of a multiple configuration
There are several reasons for a multiple unit configuration:
•If more output power is needed than one unit can supply, two up to ten MSU units can be installed in parallel.
•If redundancy is required, units can be installed in parallel to maintain reliable power supply. If one of the units should fail,
the remaining units continue.
•Three MSU units can be installed in a 3-phase configuration to supply three-phase AC power for high-power loads like air-
conditioning. By connecting more units in parallel as well, virtually unlimited three-phase power can be made available.
1.4 General installation guidelines
When using units in a multiple unit configuration, the following requirements are applicable in addition to the requirements
mentioned in the user manual:
•Maximum number of units in parallel: 10.
•Maximum number of units in a three-phase parallel configuration: 3 x 3.
•Installation and commissioning of multiple units requires configuration of MasterBus settings in MasterAdjust from a
Windows PC connected to a unit via a MasterBus USB Interface. MasterAdjust software is available as free to download
software on the Mastervolt website: www.mastervolt.com. The installer must be familiar with the configuration tool.
•Allow sufficient ventilation to prevent build-up of hot air. When installing multiple units either side by side or vertically above
each other, at least 10 cm free space must be kept between the units. If necessary, adequate measures must be taken to
avoid one unit heating up the other.
•Keep DC cables to the units all the same length and size. Keep the cable lengths as short as possible!
WARNING!
High currents will pass through the wiring! The wire sizes stated in this manual are only
guidelines. Fusing is based on the size and length of the cable, which in turn depend on the load
connected to the unit. Always comply with all local rules and regulations.
1.5 Overview Mass Sine Ultra
1. Display with front
switch
2. Battery negative
3. Battery positive
4. AC output
5. DIP switch unit (1x8)
6. Fan (3x)
7. Ground stud
8. Sync connector (2x)
9. MasterBus connector
(2x)
Remove the cover
by loosening these
two screws:

4
Mass Sine Ultra –Installation Manual Multiple Units
2 FLOWCHART
Use the following flowchart to determine which installation procedure to use.
Click here (or go
to page 13) for
the
3-phase with
MasterAdjust
installation
procedure
Start
3-Phase?
More than 2
units?
Lithium Ion
Batteries?
Click here (or go
to page 5) for
the
parallel with
MasterAdjust
installation
procedure
YES
Parallel
configuration
3-Phase
configuration
NO
Click here (or go
to page 10) for
the
parallel with
DIP switches
installation
procedure
YES
NO
NO
YES
Setup via
DIP
switches?
NO
YES

Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with MasterAdjust
5
3 PARALLEL CONFIGURATION WITH MASTERADJUST
Up to 10 units may be set in parallel with MasterAdjust. Basic knowledge of MasterAdjust is required.
3.1 Materials needed
Description
Quantity
Multiple units (product code: 26024000)
n
MasterBus Terminator (included but not always needed)
MasterBus cables between units (product code e.g. 3 meter: 77040300)
n-1
Sync cables to interconnect all units (product code e.g. 3 meter: 6502000030)
n-1
MasterBus USB Interface (product code: 77030100)
1
Windows based PC with the MasterAdjust configuration tool
1
DC + cable with fuse
n
DC –cable
n
AC cable to connect the AC input of the unit to an external power source (MSU)
n
AC cable to connect the external load to OUT
n
3.2 Preparations
-Make sure that all power sources (AC and DC) are switched off.
-Make sure that DIP switches 1 and 2 are off on all units.
DIP switch location
All other DIP switches (3…8) on the Replica unit(s) must match the settings on the Primary unit. For an overview of DIP
switch settings, please see the user manual.

6
Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with MasterAdjust
3.3 DC wiring of parallel units
Note: Always use the same length positive and negative cables! Be aware that to keep the drawings in this chapter clear and
easy to read, the cable lengths have not been drawn in proportion to each other.
Minimum DC
cable cross
section
Inline fuse
Recommended
battery bank
Indicated cable sizes are for cables from unit to busbar and
shorter than 3m. Cables from busbar to battery bank should
be twice the diameter. When cables are longer than 3m, the
size should be increased to compensate for cable losses.
70 mm2
250 A
400 Ah
3.4 AC wiring of parallel units
FUSE
FUSE
BUSBAR
BATTERY
SWITCH
© = Circuit Breaker, no RCD!
® = Residual Current Device (RCD) of max. 63A
AC cable cross section 3x 4.0 mm2
* Neutral to ground bonding depending on local regulations
©
©
©
®
PRIMARY UNIT
REPLICA UNIT
BATTERY BANK

Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with MasterAdjust
7
3.5 Network wiring of parallel units
3.6 Configuration with MasterAdjust
Pre-commissioning
1. Make sure that the units are switched off.
2. Make sure that all connections are firmly tightened.
3. Install the DC fuses and close the battery switch.
4. Close the covers of all units.
5. Close the AC breaker in AC output 1 of each unit.
6. Switch on all units.
7. If not already available, connect a MasterBus USB Interface to the MasterBus network and to a PC, and open MasterAdjust.
Installation or configuration errors may come up in MasterAdjust while the configuration is in progress. This is normal.
Configuration
8. In MasterAdjust, check that the units are running the latest firmware. See the
Mastervolt Portal for more information.
9. In the device list, in the left pane of MasterAdjust, right-click the Primary unit and select Login.
The Primary unit is the device that has the AC OUT-2 connection. The other units are called Replica units. Note that in the
older MCU and MCP dialog windows Primary is called Master and Replica is called Slave.
10.Select Installer and enter the installer code.
11.Go to the Configuration tab and give the unit a logical name. For example, MSU Primary. Do the same for the Replica units.
It's good practice to label them Replica 1, Replica 2 etc.
Note: battery settings must be configured the same on all units.
12.Return to the Configuration tab of the Primary unit. All settings are done here. However, if Mastervolt Lithium-Ion batteries
are connected, all events, like Stop Discharge for example, must be configured for ALL units separately.
13.From the Cluster drop-down list, select Single Phase. You may need to maximize the MasterAdjust window or scroll all the
way to the right to see this.
Sync cable
MasterBus cable
MasterBus
network or
terminator
MasterBus
network or
terminator

8
Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with MasterAdjust
14.From the Dev. Per phase drop-down list, select the number of units in parallel (Primary + Replica).
15.Click the Select devices button to be able to select the Replica unit(s).
16.Notice the Cluster topology and Cluster state. Topology monitors the size of the cluster (whether the selected number of
units is equal to the selected number of devices). State monitors the configuration state of the cluster.
Click the Activate cluster button to finish the cluster configuration.

Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with MasterAdjust
9
In the device list, in the left pane of MasterAdjust, the Replica unit(s) will now be listed under the Primary unit.
3.7 Initial start-up
1. Switch all units off and on again.
2. Check that the units are working as inverter.
3. Close the AC breaker in the Mains Input of each unit.
4. Check that the units are working as charger when 230VAC is applied to the Mains Inputs.

10
Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with DIP switches
4 PARALLEL CONFIGURATION WITH DIP SWITHES
Two units can be set in parallel with DIP-switches. This can be two identical MSU units. Provided that they use the same DC
voltage, this can also be one MSU and one MCP.
4.1 Materials needed
Description
Quantity
Two units (product code: 26024000)
2
MasterBus Terminator (included but not always needed)
MasterBus cables between units (product code e.g. 3 meter: 77040300)
1
Sync cables to interconnect all units (product code e.g. 3 meter: 6502000030)
1
DC + cable with fuse
2
DC –cable
2
AC cable to connect the AC input of the unit to an external power source (MSU)
2
AC cable to connect the external load to OUT
2
4.2 Preparation
-Make sure that all power sources (AC and DC) are switched off.
4.3 DC wiring of parallel units
Note: Always use the same length positive and negative cables! Be aware that to keep the drawings in this chapter clear and
easy to read, the cable lengths have not been drawn in proportion to each other.
Minimum DC
cable cross
section
Inline fuse
Recommended
battery bank
Indicated cable sizes are for cables from unit to busbar and
shorter than 3m. Cables from busbar to battery bank should
be twice the diameter. When cables are longer than 3m, the
size should be increased to compensate for cable losses.
70 mm2
250 A
400 Ah
FUSE
FUSE
BUSBAR
BATTERY
SWITCH
BATTERY BANK

Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with DIP switches
11
4.4 AC wiring of parallel units
4.5 Network wiring of parallel units
4.6 Configuration with DIP switches
Pre-commissioning
1. Make sure that the units are switched off.
2. Make sure that all connections are firmly tightened.
Configuration
3. Use a small screwdriver to carefully set the DIP switches of block A:
DIP switch location
© = Circuit Breaker, no RCD!
® = Residual Current Device (RCD) of max. 63A
AC cable cross section 3x 4.0 mm2
* Neutral to ground bonding depending on local regulations
©
©
©
®
PRIMARY UNIT
REPLICA UNIT
Sync cable
MasterBus cable
MasterBus
network or
terminator
MasterBus
network or
terminator

12
Mass Sine Ultra –Installation Manual Multiple Units
Parallel configuration with DIP switches
On the Primary unit set DIP switch 1 on (position 1) and keep 2 off (position 0).
On the Replica unit keep DIP switch 1 off (position 0) and set 2 on (position 1).
All other DIP switches (3…8) on the Replica unit must match the settings on the Primary unit. For an overview of DIP switch
settings, please see the user manual.
4.7 Initial start-up
1. Install the DC fuses and close the battery switch.
2. Close the covers of all units.
3. Close the AC breaker in AC output 1 of each unit.
4. Switch on all units.
5. Check that the units are working properly.

Mass Sine Ultra –Installation Manual Multiple Units
Three-phase configuration with MasterAdjust
13
5 THREE-PHASE CONFIGURATION WITH MASTERADJUST
Three MSU units can be set in a 3-phase star-configuration with MasterAdjust. Basic knowledge of MasterAdjust is required.
5.1 Materials needed
Description
Quantity
Three units (product code: 26024000)
3
MasterBus Terminator (included but not always needed)
MasterBus cables between units (product code e.g. 3 meter: 77040300)
2
Sync cables to interconnect all units (product code e.g. 3 meter: 6502000030)
2
MasterBus USB Interface (product code: 77030100)
1
Windows based PC with the MasterAdjust configuration tool
1
DC + cable with fuse
3
DC –cable
3
AC cable to connect the AC input of the unit to an external power source
3
AC cable to connect the external load to OUT
3
5.2 Preparations
-Make sure that all power sources (AC and DC) are switched off.
-Make sure that DIP switches A1 and A2 are off on all units.
DIP switch location
All other DIP switches (3…8) on the Replica units must match the settings on the Primary unit. For an overview of DIP
switch settings, please see the user manual.
5.3 DC wiring of three-phase units
Note: Always use the same length positive and negative cables! Be aware that to keep the drawings in this chapter clear and
easy to read, the cable lengths have not been drawn in proportion to each other.
DC cable
cross section
Inline fuse
Recommended
battery bank
Indicated cable sizes are for cables from unit to busbar and shorter
than 3m. Cables from busbar to battery bank should be twice the
diameter. When cables are longer than 3m, the size should be
increased to compensate for cable losses.
70 mm2
250 A
400 Ah
FUSE
FUSE
BUSBAR
BATTERY
SWITCH
BATTERY BANK
L1
L2
L3

14
Mass Sine Ultra –Installation Manual Multiple Units
Three-phase configuration with MasterAdjust
5.4 AC wiring of three-phase units
5.5 Network wiring of three-phase units
5.6 Configuration with MasterAdjust
Pre-commissioning
1. Make sure that the units are switched off.
2. Make sure that all connections are firmly tightened.
3. Install the DC fuses and close the battery switch.
4. Close the covers of all units.
5. Switch on all units.
6. If not already available, connect a MasterBus USB Interface to the MasterBus network and to a PC, and open MasterAdjust.
Installation or configuration errors may come up in MasterAdjust while the configuration is in progress. This is normal.
Configuration
7. In MasterAdjust, check that the units are running the latest firmware. See the
Mastervolt Portal for more information.
8. In the device list, in the left pane of MasterAdjust, right-click the L1 unit and select Login.
L1
L2
L3
* Neutral to ground bonding depending on local regulations
Mains power cable cross section: 2.5 mm
2
L1
L2
L3
Sync cable
MasterBus cable
MasterBus
network or
terminator
Sync cable
MasterBus cable
MB
network
or term.

Mass Sine Ultra –Installation Manual Multiple Units
Three-phase configuration with MasterAdjust
15
9. Select Installer and enter the installer code.
10.Go to the Configuration tab and give the unit a logical name. For example, MSU L1, MSU L2 and MSU L3.
11.Return to the Configuration tab of the L1 unit. All settings are done here. However, if Mastervolt Lithium-Ion batteries are
connected, all events, like Stop Discharge for example, must be configured for ALL units separately.
12.In the Cluster pane, from the Phase System drop-down list, select Three Phase. You may need to maximize the
MasterAdjust window or scroll all the way to the right to see this.
13.From the Dev. Per phase drop-down list, select PER PHASE the number of units in parallel (Primary + Replica)! In our
example this is 1.
14.Click the Select devices button to be able to select the L2 and L3 units.
In the Phase L2 section, from the Phase master (Primary) drop-down list, select the L2 unit.
In the Phase L3 section, from the Phase master (Primary) drop-down list, select the L3 unit.

16
Mass Sine Ultra –Installation Manual Multiple Units
Three-phase configuration with MasterAdjust
15.Notice the Cluster topology and Cluster state. Topology monitors the size of the cluster (whether the selected number of
units is equal to the selected number of devices). State monitors the configuration state of the cluster.
Click the Activate cluster button to finish the cluster configuration. The Cluster state will change from "Incomplete" to
"Active".
16.In the device list, in the left pane of MasterAdjust, the L2 and L3 units will now be listed under the L1 unit.
5.7 Initial start-up
1. Switch all units off and on again.
2. Check that the units are working properly.

Mass Sine Ultra –Installation Manual Multiple Units
17
6 TROUBLESHOOTING
Errors in parallel configuration will be shown by the LED indicators in the display.
Note: An error also occurs if the AC OUT of the units are not connected to each other (breakers!).
Illuminating LEDs
MasterBus alarm
Explanation / Possible cause
What to do
Normal operation and warnings
None
The Mass Sine Ultra is
switched off manually.
Switch on the Mass Sine Ultra by
means of the main switch.
(1) red
MB monitoring:
Overload
Inverter in overload, inverter
exceeds max continuous
power.
Check the load connected. Check
the connections.
(3) red
Battery low/high
Battery voltage low/high.
Stop inverting
Errors (Mass Sine Ultra shuts down)
(1) and (3) red,
(2) yellow
Over temperature
Mass Sine Ultra too hot.
Restart when alarm is over.
Check ventilation. Reduce load.
(1) and (3) red
System error,
Sync error,
Config error
Communication disturbed.
Configuration wrong.
Check communication cables and
connectors
Permanent errors (manual reset required)
(1) and (3) blinking
fast red
Overload
Number of inverter overload
restart attempts exceeded.
Reduce the output loads, shut
the Mass Sine Ultra Off and On.
System error
Hardware issue.
Shut the Mass Sine Ultra Off and
On.
(4) blinking fast
Install error
Installation error.
Correct installation, shut the
Mass Sine Ultra Off and On.
Monitoring a three-phase cluster
In MasterAdjust, on the monitoring tab of the L1 unit, first the data for the unit itself is shown. Next are the Cluster groups (L1,
L2 and L3). Per phase, input and output data is shown. If more units are clustered per phase, their values are combined.
The list with AC outputs shows the values for the selected unit.

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