Microcare Pure Sine Wave Bi-Directional Inverter 10Kw User manual

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10Kw / 15Kw
PURE SINE WAVE
BI-DIRECTIONAL
INVERTER MANUAL

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Contents
1. INTRODUCTION ........................................... 2
2. SAFETY INSTRUCTION ............................... 3
3. SYSTEM DESCRIPTION .............................. 6
4. INVERTER OPERATION ............................ 10
4. INVERTER PROGRAMMING...................... 15
6. SPECIFICATIONS OF INVERTERS ........... 27

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1. INTRODUCTION
1.1 GENERAL DESCRIPTION
The Microcare Pure Sine Wave Inverters deliver true clean sine wave output power.
The Power is applicable for any kind of load, such as air-conditioners, home
appliances, consumer electronics and office e uipment. This series features a durable
and continuous 24 hour operation. The compact and modular design makes utility
interactive installations easier and more cost effective. It is a high uality product that
offers the best price/performance ratio in the industry.
1.2 KEY FEATURES
1.2.1 Multiple microprocessor design base.
1.2.2 Compatible with both linear and non-linear loads.
1.2.3 24 hour operation of the inverter.
1.2.4 DC start and automatic self-diagnostic function.
1.2.5 THD less than 3%.
1.2.6 Internal high power 3 stage charger.
1.2.7 High efficiency design to save electricity.
1.2.8 Low heat dissipation for long time operation.
1.2.9 Designed to operate in a harsh environment.
1.3 IMPORTANT NOTICES
• Read instructions carefully before operating Inverter.
• Inverter connection instructions must be followed.
• The unit should only be opened by skilled personal.
• Retain the load within in the rating of Inverter to prevent faults.
• Keep the Inverter clean and dry.
• If a 220vac supply is connected to the inverter and it is to be used as a UPS, then
the inverter can only supply its rated power.

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2. SAFETY INSTRUCTION
2.1 POSITIONING
2.1.1 Do not put the Inverter on a rugged or inclined surface.
2.1.2 Do not install the Inverter near water or in damp environments.
2.1.3 Do not install the Inverter where it would be exposed to direct sunlight.
2.1.4 Keep the Inverter far away from heat emitting sources.
2.1. Do not block ventilation openings in the inverter housing.
2.1.6 Do not leave objects on top of the Inverter.
2.1.7 Do not expose the Inverter to corrosive gasses.
2.1.8 Ambient temperature: 0°C – 40°C.
2.2 INSTALLATION
2.2.1 Connect the Inverter AC OUTPUT only to an earthed DB Panel.
2.2.2 If a 220vAC supply or a generator is available, connect into the Live and Neutral IN
Connection.
2.2.3 Make sure the BATTERY INPUT CIRCUIT BREAKER is OFF.
2.2.4 Place cables in such a way that no one can step on or trip over them.
2.2.5 Battery cables must be a minimum of 50mm² and as short as possible.
2.2.6 Refer to the diagrams below for each inverter as to the cable placement and
connections.
2.2.7 Minimum battery bank of 500A/Hours is suggested.
2.3 EARTHING OF EQUIPMENT
E uipment surge protection products are an effective way of controlling dangerous surges that
can enter a facility. When strategically placed and correctly installed, the Surge Protectors will
effectively reduce harmful over voltage conditions that can damage electrical and electronic
e uipment.
It is important that the protection system includes both structural and surge protection e uipment.
When lightning current passes into the ground through any conductor (Example: Tree Trunk) a
powerful electromagnetic force is set up due to the fast rise times of the strike. This
electromagnetic force then couples into any inductive loops that may be available in nearby
buildings. When these currents e ualize, damage usually occurs to the e uipment.

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2.3.1 LIVE IN and N IN – Connect to Grid
2.3.2 LIVE OUT and N OUT – Connect to AC Load.
2.3.3 EARTH 1 – Connect to Earth Bar.
2.3.4 EARTH 2 – Connect to Chassis Earth.
The Microcare inverter is designed primarily for Grid / Mains connection to include charging.
When Mains is connected to the inverter the Neutral connection is Earthed via the Mains.
If the Inverter is connected as a stand-alone inverter with no Mains Connection, The Neutral
is re uired to be earthed using an earth spike.
If the Inverter is not earthed; warranty will be null and void.

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2.3.5 Inverter Neutral Connection
The inverter has a floating neutral so the neutral voltage will be close to 110v. In this case
the live voltage with respect to the earth will also be around 110v.
If you use your inverter for a standalone application you need to bridge the neutral input
with the earth terminal on the inverter (these two are next to each other for this purpose).
You can now fit an earth leakage after the inverter.
But if you are going to supply your inverter with AC from the grid then you need to put the
inverter before the earth leakage and you need to keep the inverter neutral input connected
to the GRID neutral at all times.
So if you what to switch the GRID input to the inverter off then one must only switch live.
You can then put the earth leakage directly after the inverter. The grid will pull the inverter
neutral to 0v.
2.3.5 Inverter Earth Connection to Grid.
2.3.6 Inverter Earth Connection Off-Grid.

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2.4 MAINTENANCE AND SERVICE
1. Caution – Risk of Electric Shock.
2. Batteries may cause electric shock and have a high short-circuit current. Please
take the precautionary measures specified below and any other measures
necessary when working with batteries.
• Remove wristwatches, rings and other metal objects.
• Use only tools with insulated grips and handles.
3. SYSTEM DESCRIPTION
3.1 SYSTEM DESCRIPTION. (10Kw a d 15Kw I verters.)
3.1.1 System Front View. (10Kw Inverter.)

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3.1.2 System Right View. (10Kw Inverter.)
3.1.3 System Left View. (10Kw Inverter.)

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3.1.4 System Front View. (15Kw Inverter.)
3.1.5 System Right View. (15Kw Inverter.)

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3.2 FRONT PANEL DESCRIPTION
3.2.1 LCD Display: This indicates the UPS’s operational information, including output
voltage, battery voltage, output load and inside temperature.
3.2.2 UP–Key: Use to move the display up.
3.2.3 DOWN–Key: Use to move the display down.
3.2.4 ENTER–Key: It is pressed with the UP–Key to turn on the UPS. Push the ENTER
button to confirm or store DATA.
3.2.5 Push the UP and DOWN keys together to turn off the inverter.
3.2.6 Fault LED (Red): To indicate the INVERTER is in a fault condition because of
inverter shutdown or over temperature.
3.2.7 Warning LED (Yellow): To indicate the INVERTER is in the status of overload or
battery LOW.
3.2.8 Normal LED (Green): To indicate the INVERTER is operating normally.

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4. INVERTER OPERATION
4.1 Check Prior to Start Up
4.1.1 Check Input and Output cables are secured.
4.1.2 Check if Battery voltage meets the INVERTER rating.
4.2 Operatio Procedure
Please follow the instructions below for the UPS operation.
Push and hold the RED PRECHARGE BU ON until the Display shows writing then turn
on the BATTERY CIRCUIT BREAKER while holding the RED PRECHARGE BU ON in.
Once the BATTERY CIRCUIT BREAKER has been turned on then the RED
PRECHARGE BU ON can be released.
The display then changes to:
UPS URNED OFF
…CALIBRA ING…
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
MICROCARE
UPS
…PLEASE WAI …
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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The display then changes to:
Then Push the ENTER Button and the display will change to:
By pressing the Enter-key and the UP-key simultaneously for 3 seconds, the UPS will
start up and the OK LED will light up to indicate the power is being supplied from the
inverter to the load and the MAINS / FAIL LED comes ON. The display will show:
UPS URNED OFF
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
MICROCARE
1
5KW
INVER ER OFF
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
MICROCARE
1
5KW
INVER ER ON
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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By turning on a load the OU PU % will change to indicate the amount of LOAD as a %
of the unit being used in KW. Above 5% of load is displayed.
When the Up-key and the Down-key are pressed simultaneously for 3 seconds, the UPS
will be turned OFF after two beeps.
LCD DISPLAY MENU
With the inverter ON or OFF use the Up/Down keys to select menu-displays of the LCD
described below.
The screen will show the following:
Using the UP/Down Buttons the following screens can be seen.
This shows the power rating of the UPS and its % output.
MICROCARE
1
5KW
INVER ER = 47%
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
MICROCARE
1
5KW
INVER ER = 27%
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Erro
r

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Using the UP arrows the following details can be checked:
This shows the battery voltage and the amps that the UPS is drawing from the battery.
If the battery Amps changes to CHR AMPS
This shows the Charge Amps that are being put back into the battery bank from the
charging source.
This shows the output voltage and amps that the load is drawing from the Inverter
supplied Power.
U
PS VOL S
:
22
0
UPS AMPS : 7.0
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
BA VOL
:
54.2
BA AMPS
:
7
.0
MICROCARE
ON
OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
BA VOL
:
54.7
CHR
AMPS
:
10
.0
MICROCARE
ON
OFF
ENTER
Menu
Menu Up
OK
Inverter
Error

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Shows the Grid Volts and power draw from the grid power supply:
This shows the internal temperature of the UPS.
This shows that the control cards in the UPS have a 100% communication.
SIGNAL S RENG H
DISPLAY-UPS 100%
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inv
erter
Error
EMPERA URE
26.3 deg/cel
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
GRID VOL S
:
227
GRID AMPS : 10.0
MICROCARE
ON OFF
ENTER
Men
u Down
Menu Up
OK
Inverter
Error

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This indicates the serial number of the Inverter.
he Serial number of the inverter needs to be noted and supplied when requesting
any fault support information.
4. INVERTER PROGRAMMING
There are two MENUS’ which allow the user to change either the SET UP or the
BATTERY settings.
Push the UP / DOWN keys to select which menu is to be changed.
Push ENTER if you want to enter the SETUP menu.
EN ER
SE UP MENU ?
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
SERIAL NUMBER:
MCxx7777
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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By pushing ENTER button you can change whether the inverter runs in NORMAL SENSE
mode; or SOLAR CON ROL mode.
NORMAL SENSE is to be selected when connecting a Generator to the Inverter or for any
off-grid inverter installation.
Push the ENTER button. The menu changes to:
SOLAR CONTROL MODE is to be selected when a Grid Connection is available. The
Inverter will switch over to the Grid Power to supply the load when the batteries reach the
set level and will revert back to battery power once the battery bank has been recharged
to the set level.
In order to run correctly in Solar Control Mode, the BA ERY OFF A setup needs
to be changed in the BA ERY SE UP MENU to: (2V – 48V; 1.5V – 36V; 1V – 24V;
0.5V – 12V) Less than the BA ERY RUN O Value setup in the SE UP MENU.
When the inverter is running in solar control mode and the Charge level is set to LEVEL 1,
the inverter will run the load using mains power and the solar regulator will charge the
battery bank. The inverter will switch back over to battery power when the AC RUN TO
Value is reached.
UPS
MODE
NORMAL SENSE
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
UPS
MODE
SOLAR CON ROL
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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Push the UP button in SOLAR CONTROL mode you can then access the battery run to
menu: (This allows the user to set the level the battery will go down to before switching to
mains power.)
Battery Run To: 48v System – 46v (Default) (Can be changed in 2v Increments)
36v System – 34.5v (Default) (Can be changed in 1.5v Increments)
24v System – 23v (Default) (Can be changed in 1v Increments)
12v System – 11.5v (Default) (Can be changed in 0.5v Increments)
Push the ENTERbutton. The Menu settings can be changed.
Push the UP button. The menu changes to AC RUN TO menu:
(Allows the user to set the level the mains/solar regulator will charge the battery to before
the inverter switches back to battery power.)
AC Run To: 48v System – 54.4v (Default) (Can be changed in 2v Increments)
36v System – 40.5v (Default) (Can be changed in 1.5v Increments)
24v System – 24v (Default) (Can be changed in 1v Increments)
12v System – 12v (Default) (Can be changed in 0.5v Increments)
Push the ENTER button. The Menu settings can be changed.
SOLAR
CON ROL
AC RUN O 54.0v
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error
SOLAR
CON ROL
BA RUN O 46.0v
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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To change the menu, push the UP button.
The menu will then change to:
The Settings available for this are as follows:
3mS NO
SOFTSTART
3 milli second transfer time and will restart load instantly -
with mains fail prediction.
5mS NO
SOFTSTART
5 milli second transfer time and will restart load instantly -
with mains fail prediction.
8mS +
SOFTSTART
(Default) 8 milli second transfer time and will ramp the
RMS voltage up in less than 1 second - with mains fail
prediction.
GEN +
SOFTSTART
8 milli second transfer time and will ramp the RMS voltage
up in less than 1 second - with no mains fail prediction.
GEN + SLOW
RAMP
8 milli second transfer time and will ramp the RMS voltage
up in 3 seconds - with no mains fail prediction.
RANSFER
SWI CH
8mS + SOF S AR
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error

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To change the menu, push the UP button.
The menu will then change to:
The sensitivity of the SHOR CIRCUI RIP may be changed through 5 LEVELS. Push
ENTER to select the mode:
HIGH NO RESET High sensitivity to short circuits - will trip the inverter after a short
delay time period.
MED NO RESET Medium sensitivity to short circuits - will trip the inverter after a
medium delay time period.
HIGH 3x RESET High sensitivity to short circuits - will trip the inverter after a short
delay time period, with soft start to prevent in rush current.
MED 3x RESET Medium sensitivity to short circuits - will trip the inverter after a short
delay time period, with soft start to prevent in rush current.
LOW EMERGENCY Low sensitivity to short circuits - will trip the inverter after a long
delay time period. Only to Used in Emergency Situations.
LOAD
MONI ORING
HIGH NO RESE
MICROCARE
ON OFF
ENTER
Menu Down
Menu Up
OK
Inverter
Error