Mastervolt MASS SINE 12/500 User manual

MASTERVOLT
Snijdersbergweg 93, 1105 ANAmsterdam
The Netherlands
Tel.: [phone]
Fax: [phone]
www.mastervolt.com
GEBRUIKERSHANDLEIDING/ USER’S MANUAL
BETRIEBSANLEITUNG / MODE D’EMPLOI
V1. March 2000
MASS SINE 12/500
- 230V & 117V models SINE WAVE H.F.-

22 March 2000 / MASS Sine 12/500/ EN
1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.1 Use of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.2 Garantee specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.3 Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.4 Validity of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.5 Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.6 Changes to the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
2 SAFETY GUIDELINES AND MEASURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.1 Warnings and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.2 Use for intended purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.3 Organizational measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.4 Maintenance & repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.5 Warning for specific dangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.6 Warning regarding life support applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.1 Switching on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.2 Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.2.1On the remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
CONTENTS

EN / MASS Sine 12/500 / March 2000 23
5 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6 TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
7 TECHNOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
8 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8.1 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8.3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8.4 Mounting of the cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
8.5 Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.5.1 AC wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.5.2 DC wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.5.3 Battery cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.6 Connecting the remote control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
8.7 Commissioning after installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.8 Automatic switching between MASS inverter, the AC genset and/or shore power . . . . . . . . . . . . . .36
8.9 Low energy mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.9.1 Low power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.9.2 Economic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.9.3 Stand by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
9 LIST OF KEY WORDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
10 EC DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
CONTENTS

24 March 2000 / MASS Sine 12/500/ EN
1 GENERAL INFORMATION
1.1 USE OF THIS MANUAL
This manual serves as a guideline for safe and effec-
tive operation, maintenance and possible correction
of minor malfunctions of the inverter. It is therefore
obligatory that every person who works on or with
the inverter must be completely familiar with the con-
tentsof this manual,and that he/shecarefully follows
the instruction contained herein.
Installation of, and work on the inverter, may be car-
ried out only by qualified, authorized and trained per-
sonel, familiar with the locally applicable standards
and taking into consideration the safety guidelines
and measures (chapter 2 of this manual).
This manual has 20 pages.
1.2 GARANTEE SPECIFICATIONS
Mastervolt quarantees 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 user's manual, then
damage may occur and/or the unit may not fulfil its
specifications. All of these matters may mean that
the guarantee may become invalid.
1.3 QUALITY
During their production and prior to their delivery, all
of our units are exhaustively tested and inspected.
The 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 the Master-
volt standard versions of the MASS inverter.
1.5 LIABLITY
Mastervolt can accept no liability for:
• damage due to use of the inverter;
• 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 INVERTER
Modifications to the inverter may be carried out only
after the written permission of Mastervolt.
GENERAL INFORMATION

EN / MASS Sine 12/500 / March 2000 25
2.1 WARNINGS AND SYMBOLS
Safety instructions & warnings are marked in this
manual by the following symbols:
CAREFUL !
special data, restrictions and rules with
regard to preventing damage
a WARNING refers to possible injury to
the user or significant material damage
tothechargerif the userdoesnot(care-
fully) follow the procedures.
2.2 USE FOR INTENDED PURPOSE
1 The inverter is constructed as per the applicable
safety-technical guidelines.
2 Use the inverter only:
• in a technical correct condition;
• in a closed, wel-ventilated room, protected
against rain, moisture, dust and non conden-
sing circumstances;
• observing the instructions in the user's and in-
stallations manual.
Never use the inverter in situations
where there is danger of gas- or dust
explosion!
3 Use other than as mentioned above is not consi-
dered to be consistent with the intended purpo-
se. Mastervolt is not liable for any damage resul-
ting from failure to comply with 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 & REPAIR
1 If the inverter is switched off during maintenance
and/orrepairactivities,itshould be securedagainst
unexpected and unintentional switching on:
• switch off the connection with the batteries or
remove the inverter fuse;
• be sure that third parties cannot reverse the
measures taken.
2 If required, use only original spare parts. The in-
verter has no serviceable parts, except the fan
and pcb.
2.5 WARNING FOR SPECIFIC DANGERS
1 Connect the earth of the inverter output to the
central ground and use a RCCB switch in the in-
verter output.
2 Protect the DC wiring with a fuse, according to
the guidelines in this users manual.
3 Check the wiring at least once a year. Defects
suchas loose connections, heat damaged cables
etc. must be corrected immediately.
SAFETY GUIDELINES AND MEASURES
2 SAFETY QUIDELINES AND MEASURES

26 March 2000 / MASS Sine 12/500/ EN
4 Do not work on the inverter or the system if it is
still connected to a current source. Only allow
changes in your electrical system to be caried out
by qualified electricians.
5 Connection and protection must be done in ac-
cordance with local standards.
6 Before opening the cabinet of the inverter, switch
off the mains and remove the inverter fuse.
Setting the switch on the front of the inverter
to 0 is not sufficient !
2.6 WARNING REGARDING LIFE SUPPORT
APPLICATIONS
Mastervolt products are not sold for applications in
any medical equipment intended for use as a
component of any life support system unless a spe-
cific written agreement pertaining to such intended
use is executed between the product manufacturer
and Mastervolt. Such agreement will require the
equipment manufacturer either to contract for addi-
tional reliability testing of the Mastervolt parts and/or
to commit to undertake such testing as a part of the
manufacturing process. In addition such manufactu-
rer must agree to indemnify Mastervolt from any
claims arising from the use of Mastervolt parts in the
life support equipment.
SAFETY GUIDELINES AND MEASURES

EN / MASS Sine 12/500 / March 2000 27
3 OPERATION
3.1 SWITCHING ON AND OFF
Switching on: Put the on/off/remote switch on the
front of the inverter on "I on". The green lamp “inver-
ter on" lights up, and the inverter will start. If you use
a remote control panel, put the on/off switch to ‘re-
mote’,and put theon/offswitchonthe remotecontrol
panel to ‘on’.
Switching off: Put the on/off/remote switch on the
frontof the inverteron "0 off".The inverterstopsand
all the lights that are on, go off.
Careful !
Switching off the inverter with the switch
on the front does not break the connec-
tion to the batteries. The inverter remains connected
to the batteries.
3.2 INDICATOR LIGHTS
The functions of the indicator lights are (see fig. 1):
inverter on: inverter is switched on
low battery: battery voltage is too low
temperature: inverter is overheated
Short description:
“inverter on”
The green led will be lit when the inverter is switched
on. In case of an overload (and the inverter has been
switched off) the green led will start to blink.
“low battery”
The inverter is switched off if the battery voltage is
too low (see table hereunder). If the voltage rises
above the values given below, the inverter restarts
automatically. model 12V
switch off voltage 10V
switch on voltage 11V
“temperature”
The inverter switches off in high ambient temperatu-
res and /or sustained overload. After cooling down,
the inverter restarts automatically.
3.2.1 On the remote control
In case of connecting a remote control panel, you
can read the following after switching on the inverter:
inverter on: inverter is switched on
failure: inverter is overloaded, overheated
or battery voltage is too low
OPERATON
Fig. 1: Mass Sine 12/500 indicator lights.

28 March 2000 / MASS Sine 12/500/ EN
4 TROUBLE SHOOTING
Malfunction Possible cause What to do
No output voltage Battery voltage too low Check battery voltage with a Volt-
meter, disconnect the users or
charge the batteries.
Battery voltage too high Check battery voltage,
switch off the charger.
Fuse in DC distribution failed Replace failed fuse.
Short circuit or overloaded Disconnect load from the
inverter.
On/off switch on ‘remote’ You can only use this switch if a
remote control panel is connected.
Switch the remote panel on/off
switch to ‘on’.
Inverter constantly switches Battery voltage too low Check battery voltage, discon-
on/off nect the users or charge the batte-
ries.
Loose connections in wiring Check the wiring between
inverter and battery for loose
connections.
Diameter battery cables too small Measure the voltage drop in
the wiring, in case of > 0.5 Volt
replace the wiring by cables
with more diameter.
LED “on” blinks and the The connected load is too Reduce the load connected
inverter is switched off much for the inverter to the the inverter.
The battery is empty The inverter will try to supply con-
nected loads, but due to low batte-
ry the inverter stops for 1,5 minute.
This wait-state gives the battery ti-
me to recover.
If you cannot correct a problem with the aid of the malfunction table, contact your MASTERVOLT Service Center
or MASTERVOLTAmsterdam for an extended service list, tel: INT+ 31-20-3422100.
TROUBLE SHOOTING

EN / MASS Sine 12/500 / March 2000 29
5 MAINTENANCE
For a reliable and optimum function of the inverter,
the following is required:
• Check at least once a year if all cable and wire
connections are stil firmly connected.
• Keep the inverter dry, clean and dust-free, in
order to ensure good heat discharge.
• Check the fan operation (has a lifetime of at
least 10 years in normal use).
MAINTENANCE

30 March 2000 / MASS Sine 12/500/ EN
6 TECHNICAL DATA 230V & 117V INVERTERS
GENERAL
Function apparatus supplying ofAC equipment
Models MASS Sine 12/500
Manufacturer Mastervolt,Amsterdam
INPUT 12/500 - 230V 12/500 - 117V
Battery voltage nominal 12 Volt 12 Volt
Switch off voltage low 10 Volt 10 Volt
Switch on voltage low 11 Volt 11 Volt
Switch off voltage high 16 Volt 16 Volt
Switch on voltage high 14 Volt 14 Volt
Maximal ripple 5% RMS 5% RMS
Current (nominal load) 50A 50A
No load (full output) 400 mA/ 5W 400 mA/ 5W
No load ( low power) 375 mA/ 4.5W 375 mA/ 4.5W
No load (stand by) 40 mA/ 0.5W 40 mA/ 0.5W
Fuse 63A 63A
DC cables 25 mm225 mm2
OUTPUT
Output voltage 230 Volt, ±5% 117 Volt, ± 5%
Output waveform true sine wave, < 5% thd true sine wave, < 5% thd
Frequency 50 Hz, ± 0,1% 60 Hz, ± 0,1%
Nomimal power Tamb=40°C 450 Watt 450 Watt
Half hour power Tamb=25°C 500 Watt 500 Watt
Peak power 1000 Watt 1000 Watt
Cos phi all power factors allowed
Efficiency nominal 89% / 92% 89% / 92%
CLIMATE
Nominal temperature -20 till 40°C
Cooling partial conventional / forced with temperature regulated fan
Humidity < 95% relative humidity, non condensing
ENCLOSURE
Dimensions (hxwxd) 310 x 190 x 100 mm (see fig. 3)
Weight 3 kg
Protection degree IP 23
STANDARDS
Emmission EN 50081-1:1992
Immunity EN 50082-1:1992
Safety IEC 950
TECHNICAL DATA 230V INVERTERS

TECHNOLOGY
EN / MASS Sine 12/500 / March 2000 31
7 TECHNOLOGY
7.1 INTRODUCTION
The MASS SINE inverter is a fully automatic high ef-
ficiency inverter, developped and produced by Mas-
tervolt Amsterdam. The MASS SINE inverter is part
of a series advanced quality battery chargers and in-
verters supplied by Mastervolt all over the world.The
MASSSINEinverterconvertsDC voltage to 230VAC,
50 Hz*.
The output voltage has a sinusoïdal waveform for
reliable and trouble free operation of connected
equipment. The inverter is protected against over-
load, short circuit and over temperature. In case of
overload, the inverter will reduce its output power.
The MASS SINE inverter has a very high efficiency,
due to the application of mosfets with high frequency
switching technology.
* or 117V / 60 Hz.

INSTALLATION
32 March 2000 / MASS Sine 12/500/ EN
8 INSTALLATION
During installation and commissioning
of the MASS inverter, the Safety Guide-
lines and Measures are applicable at all
times. See chapter 2 of this manual.
8.1 ENVIRONMENT
Install the MASS inverter in a dry, well ventilated,
dust free situation. Locate the inverter as close as
possible to the DC distribution in order to keep the
battery cables short. Do not locate the inverter in the
same compartment as the batteries. The heat of the
inver-ter is discharged by a fan with a variable speed,
from the bottom of the cabinet to the side.
When fitting the inverter be sure that:
• the air flow is not obstructed;
• the inverter is mounted vertically;
• no water and/or dust can enter the cabinet.
Never use the inverter in locations whe-
re there is gas or explosion danger!
8.2 WIRING
The way of wiring has influence on the EMC behavi-
our of the system in which the inverter is a compo-
nent. This is caused by the fact that wires and cables
are excellent reception and transmitter antennes of
radio frequency electro magnetic interference. Most
problems originate from mutual influencing of wires
and cables.
Starting points for wiring with good EMC properties:
Lay the cables in metal cable trunking. The metal of
the trunking offers a low resistance to interference
currents, so that these currents run in the trunking.
The DC cables are to be in contact with one another,
as far as possible. The cables of different groups
shouldnot betwisted, butrun in parallel.If trunkingis
not possible, lay the cables parallel to a metal bar. If
this is not possible, make a cable bunch in which the
cables run in parallel.
8.3 UNPACKING
In the box in which the inverter is delivered contains,
in addition to the inverter:
• a guarantee card;
• this user’s manual.
After unpacking, check the inverter for possible da-
mage.
CAREFUL !
Never remove the type
number plate!
Important technical data required for service, main-
tenance and later delivery of parts can be obtained
from the type number plate (see fig. 2).
Fig. 2: Type number plate.
Type: Mass Sine 12/500
Part no: 012020500
Input: 12V DC (10 ... 16V)
Output: 230V 50Hz sine wave
Output power: 500VA

INSTALLATION
EN / MASS Sine 12/500 / March 2000 33
8.4 MOUNTING OF THE CABINET
Formounting the MASSinverterfollow the described
instructions:
1 Determine the mounting points (see fig. 3).
2 Drill mounting holes for the cabinet.
3 Mount the MASS inverter with four screws or
bolts (M6) to the wall.
4 Fasten all screws or bolts securely.
On Low batt. Temp
Fig. 3: Dimensions of the Mass Sine 12/500.

INSTALLATION
34 March 2000 / MASS Sine 12/500/ EN
8.5 CONNECTING
Before beginning to connect the wiring,
make the AC and DC distribution volta-
ge-free.
8.5.1 Connecting the AC wiring and earth
wiring
General:
The inverter is protected against overload and short
circuit, so it is not necessary to install a fuse in the
output of the inverter.
IMPORTANT!
For safe installation it is necessary to:
•connect the earth (PE) and neutral
(N)ofthe inverter outputtothecentral
ground;
•insert a RCCB (earth leakage) switch
of 30mAin the inverter output.
Check whether the voltage from the
inverter is the same as the connected
equipment.
The earth wire offers protection only if
the inverter cabinet is connected to the
earth. Connect the inverter's earth ter-
minal (at the right hand side of the AC
terminal block) to the hull or chassis.
For connecting the MASS Sine 12/500:
Switch off the inverter. On the left hand side below
the handle is the IEC socket to where the AC load
must be connected (see fig. 4).
8.5.2 DC wiring
Keep the cable length as short as possible, this will
keep the system efficiency as high as possible. The
recommendedminimum sizeof thebattery cablesis:
12V
cable thickness 25 mm2
Therecommended length is a maximum of 6meters.
Whenlonger cablesare required,use thickercables.
When possible, use coloured (red and black) battery
cables. If this is not possible, mark the cables with
red and black isolation tape or heat shrink sleve.
8.5.3 Battery cable connections
TheMastervolt ServiceCenters haveall accessories
available, like battery terminals and supply cables in
all sizes. Keep the cable connection between batte-
ries and inverter as short as possible (maximum 6
meters). Connect the black negative battery cable to
the negative connection bolt (right) and the red
positive battery cable to the positive bolt (left) of the
inverter. Cut the cables to the right length and fix, if
necessary, connect cable clamps to both ends. Con-
nect the negative cable to the negative battery pole
and the positive cable via the inverter fuse to the
positive red pole. See the connection diagram in fig.
4.
CAREFUL !
Reversing positive and negative will
cause major damage to the inverter.
This damage is not covered by the gua-
rantee.
CAREFUL !
Too-thin cables and/or loose connec-
tions can cause dangerous overheating
of the cables and/or terminals. There-
fore tighten all connections well, in
order to limit as far as possible transis-
tion resistance. Use DC cables of the
correct size.

EN / MASS Sine 12/500 / March 2000 35
INSTALLATION
8.6 CONNECTING THE REMOTE CONTROL
PANEL (see fig. 4)
The remote control panel C4-RI for the MASS inver-
ter comprises an off/on switch and two LEDs. The
LED 'inverter on' indicates proper functioning of the
inverter and the availability of 230/117V AC output
voltage. The LED 'failure' indicates overload, over-
temperature or too low voltage.
Afb. 4: Connection of the Mass Sine 12/500.
Afb. 5: Connection cable for panel C4-RI
(not delivered as a standard).
on
failure
Inverter Control
C4-RI,
remote control panel.

36 March 2000 / MASS Sine 12/500/ EN
INSTALLATION
8.7 COMMISSIONING AFTER INSTALLATION
Remove the inverter fuse, if placed al-
ready.
1 Carefully check the polarity of the connections.
Careful !
Only insert the inverter fuse if the pola-
rity is correct. Switching on with incor-
rect polarity will damage the inverter
inreparably. The inverter fuse cannot
prevent this.
2 If the connections are correct:
•checkwhether theon/offswitchis inthe “OFF”
position;
•when inserting the inverter fuse, a spark will
occure,causedbythe capacitor usedin thein-
verter. This is normal.
The inverter is now ready for use.
8.8 AUTOMATIC SWITCHING BETWEEN MASS
INVERTER, THE AC GENSET AND/OR
SHORE POWER
Please contact your Mastervolt supplier if you intend
to use the inverter with a genset or shore power
connection. Handswitched or simple relay switching
systems could damage your inverter, because of the
lack off time delay. This kind of damage is not
covered by the warranty.
8.9 LOW ENERGY MODE
For applications that request a very low energy mo-
de, it is possible to set the inverter into “low energy
mode”. The “low energy mode”can be selected by
placinga jumper (green)onthe twometalpins on the
corner of the front pcb (see fig. 6).
To change the jumper settings, act as follows:
•Pull the inverter away from the wall.
•Loosen the four corner screws from the top
cover.
•Remove the top cover.
•The jumpers S1 and S2 are visible now.
•Set the jumpers to the desirable state (see
table 1).
•Place the top cover again and tighten the four
corner screws.
8.9.1 Low power mode
Do not place jumper S1. Place jumper S2.
The inverter has now been set to ‘low power mode’.
The output voltage will be 208V if the connected load
stays below the 30W. The output voltage will be to
230V if the load connected to the inverter rises
above the 30W.
8.9.2 Economic mode
Place jumper S1. Do not place jumper S2.
The inverter has now been set to ‘economic mode’.
The output voltage will be 208V if the connected load
stays below the 250W. The output voltage will be to
230V if the load connected to the inverter rises
above the 250W.
8.9.3 Stand by mode
Place jumper S1 and S2.
The inverter has now been set to ‘stand by mode’.
The inverter will have no output voltage, but checks
for connected load once every two seconds. The
inverter will switch on when a load is detected.

EN / MASS Sine 12/500 / March 2000 37
Table 1,
jumper settings:
S1 S2 mode output voltage
0 0 standard 230V
0 1 low power 208V < 30W
1 0 economic 208V < 250W
1 1 stand by 0V, switches on at load
Fig. 6: Position of the jumpers at the MASS Sine 12/500.

9 LIST OF KEY WORDS
EC declaration of conformity 38
Fuses 30, 37
Guarantee specifications 24
Guarantee period 24
Indicator lights 27
Installation 33
Inverter fuse 25, 37
Inverter on 27
Maintenance & repair 25, 29
Liability 24
Overload and on flashes in turns 27, 28
Protections 31
Remote control panel 27, 36
Safety guidelines & measures 25
Safety instructions 25
Switching off 27
Switching on 27
Technical data 30
Technology 31
Trouble shooting 28
Use for intended purpose 25
Warning for special dangers 25
LIST OF KEY WORDS /
38 March 2000 / MASS Sine 12/500/ EN
10 EC DECLARATION OF CONFORMITY
Manufacturer Mastervolt
Address: Snijdersbergweg 93
1105ANAmsterdam
The Netherlands
Herewith declares that:
Product: MASS sine wave inverters
Models: MASS 12-500-230V
MASS 12/500-117V
Conform with the provision of the EC EMC directive 89/336/EEC and
amendments 92/31/EEC, 93/68/EEC.
The following harmonized standards have been applied:
Generic emission standard EN 50081-1:1992
Generic immunity standard EN 50082-1:1992
Amsterdam,
Dr. F.J. ter Heide,
Managing director Mastervolt

EN / MASS Sine 12/500 / March 2000 39

MASTERVOLT
Snijdersbergweg 93, 1105AN Amsterdam, The Netherlands
Tel.: INT+ 31-20-3422100
Fax: INT+ 31-20-6971006
www.mastervolt.com