Su-Kam Colossal Series User manual

DSP SINEWAVE INVERTER
Colossal Series
3/5/7.5/10KVA

Introduction
Dear Customer,
We feel immense pleasure that you are now proud owner of Su-Kam DSP
Sine Wave Inverter, designed and developed using State-of-the-art
technology, for the first time in India.
The distinguished features of Su-Kam DSP Sine Wave
Inverter are:
World’s most advanced technology.
Designed for Heavy duty applications.
Full regulated Pure SineWave output.
PWM Controlled 5-stageATM battery Charging.
Field settable heavy duty charger (6A-20A) for all capacity of battery
(100Ah-200Ah)
Reduced hardware so reduced failure rate.
Automatic computerized testing.
User friendly LCD panel for messages & faults.
Smart overload sense and short circuit protection.
Great power saving.
DSP Sine Wave Inverter's complete technology is Indigenously
developed at Su-Kam R&D center.
Future Expand ability Possible
REV.17-03-07 (R)

Contents
TABLE OF CONTENTS
1. Important Safety Instructions ...................................................... 1-2
2. Knowing your Sine Wave Inverter .................................................3
a) Front Panel ..........................................................................3-6
b) Back Panel ..........................................................................7
c) Concept of Charging ..........................................................8
3. Salient Features ..........................................................................9-11
4. Getting Started ...........................................................................11
a) Installing the Inverter ............................................................12-13
b) Operation ...........................................................................13
5. Batteries .....................................................................................15
6. Battery Requirements .................................................................14-15
7. Terminology ................................................................................21
8. Trouble shooting .........................................................................16
9. Technical Specifications .............................................................17
10. Warranty Card .............................................................................18
REV.17-03-07 (R)

IMPORTANT SAFETY INSTRUCTIONS
Before proceeding further kindly go through the safety instructions carefully.
General Precautions:
1. Before using the DSP SineWave Inverter,read all instructions and cautionary
markings on the Inverter,the batteries,all appropriate section of this
instruction manual.
2. Do not expose DSP SineWave Inverter to rain,liquids of any type.The DSP
SineWave Inverter is designed for interiors use only.
3. Do not disassemble the DSP SineWaveInverter.Take it to a qualified
Su-Kam Service Centre in case service or repair is required.Opening by
unqualified personnel entails electric shock or fire hazard.
4. To reduce risk of electric shock,disconnect all wiring before cleaning.
5. Warning- Risk of Explosive gases
WORKING INTHEVICINITY OFA LEADACID BATTERY MAY BE
DANGEROUS.BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL OPERATION.
Provide ventilation to outdoors from the battery compartments.The battery
enclosures should be designed to prevent accumulation and concentration of
hydrogen gas in“pockets” at the top
DSP Inverter
DSP Inverter
of the compartment.Vent the battery
compartment from the highest point.A sloped lid can also be used to direct
the flow to the vent opening location.
To reduce the risk of battery explosion,follow all the instructions of battery
supplier for any equipment you intend to use in the vicinity of batteries.
6. Use the correct tools to makeAC/DC wiring connections.
7. Do not install this SineWave on or near flammable materials
(plywood,chemicals,gasoline etc.).
8. The SineWave should be connected to a grounded,
permanent wiring system.
1
Important
Safety
Instructions
REV.17-03-07 (R)

Personal Precautions for Batteries
1. Someone should be within the range of your voice to come to your aid when you
work near batteries.
2. Have plenty of fresh water and soap nearby in case battery acid contacts skin,
clothing or eyes.
3. Wear complete eye protection and clothing protection.Avoid touching eyes
while working near batteries.Wash your hands when done.
4. If battery acid comes in contact with skin or clothing,wash immediately with soap
and water.If acid,enters eyes,immediately flood eyes with running cool water for
at least 15 minutes and get medical attention immediately.
Use caution when working with metal tools around batteries.Do not allow any
metal object to come into contact with both battery terminals at the same time.
Battery explosion or failure can occur.
5. NEVER smoke or allow spark or a flame in the vicinity of a battery.
6. Be extra cautious when working with metal tools on and around batteries.It
could short-circuit the batteries or other electrical parts,producing a spark that
could cause an explosion.
7. Remove personal metal items such as rings,bracelets,necklaces,and watches
when working with a battery.A battery can produce a short – circuit current high
enough to weld a ring or any metal causing severe burns.
8. Never attempt to charge a frozen battery.
9. If it is necessary to remove any batteries,always remove the grounded terminal
from the battery first.Make sure all the accessories are off,so as not to cause
arcing.
10. Be sure that area around battery is well ventilated.
11. Clean battery terminals.Be careful to keep corrosion from coming in contact
with eyes.
12. Study all battery manufacturer’s specific precautions and recommended rates of
charge.
13. Add only distilled water in each cell until battery acid reaches level specified by
battery manufacturer.This helps purge excessive gas from cells.Do not overfill.
For a battery without caps, carefully follow manufacturer’s
Recharging
instructions.
14.
2
Important
Safety
Instructions
REV.17-03-07 (R)

3
Special Notices
1. The Inverter Charger is for use with a nominal battery bank of 100 - 200Ah
capacity.
2. NoAC disconnects are provided as an integral part of this Inverter.BothAC and
DC disconnects must be provided as part of system installation.
3. No over current protection for the battery supply is provided as an integral part
of this Inverter.Over-current protection of the battery cables must be provided
as part of the system installation.
4. No over current protection for theAC output wiring is provided as an integral
part of this Inverter.Over current protection of theAC output wiring must be
provided as part of the system installation.
GROUNDING INSTRUCTIONS
This inverter must be connected to a grounded,permanent wiring system.
KNOWING YOUR DSP SINE WAVE INVERTER
In its most basic form,an Inverter transforms Direct Current (DC) toAlternating
Current (AC).The battery bank with the Inverter acts as a reservoir to ensure
continuous supply of power whenever mains supply from utility power is not available.
1. List of Parameters displayed on LCD when only battery is connected to
the inverter and there is no mains & Inverter switch is in OFF condition.
PARAMETERS DISPLAYED ON LCD PANEL OF DSP Sine Wave Inverter
Welcomes You
a
Inverter Switch OFF
MAINS FAIL
b
Switch ON Inverter
MAINS FAIL
c
I/P Freq. : 00.0 Hz
I/P/ Volt : 000.0 V
d
Battery V..:...... V
e
DSP SINE WAVE INVERTER
Front
Panel
REV.17-03-07 (R)

4
2. List of Parameters displayed on LCD under no mains & Inverter
Switch is in ON Condition.Whenever there is no mains & Inverter switch
is Switched ON,the Inverter performs Self-Test for once to check the status
of the Inverter.If there is any fault (Reference Signal Fail,Auto Calibration Fail,
Short Ckt.,Over Load) the display shows only the fault afterWelcome Note.
Inverter
------ KVA
Progress
DSP Sine Wave
System Capacity
Self Test In
LCD Self Test
Welcome You
System checks
itself for any fault
before starting in
the following
sequence
LCD display shows
all digits as shown
in window.
Buzzer Test
PASS
PASS
___
O/P Crnt : A
___
O/P Freq. : Hz
Auto Calibration
Reference Signal
Battery V : ___ V
O/P Volt : ___ V
O/P Load _____%
DSP Test
Transformer
O.K.
Relay Test
O.K.
_____
S/W Rev. :
PASS
Inverter
Switch Test
H/W Rev. : _____
Self Test
DSP Sine Wave
O.K.
O.K.
If Self test result is
Fail then restart
the system once or
twice. If still the
problem exist call
the Service
Engineer
H/W and S/W
Revision.
Load Capacity connected
with Inverter
O/P AC Voltage and
Frequency
Either buzzer O.K.
or Faulty
If fail, then restart
the system by using
the front panel
ON/OFF switch, if
still the problem
exist then call the
service engineer
Battery Voltage and
Load O/P Current
a
b
c
d
e
f
g
h
i
j
k
l
m
Inverter ON
MAINS FAIL _____
O/P Load %
After the above messages, following messages are displayed in loop :
______
Battery V : V
Present status of Inverter. Present Battery Status Load on Inverter
c
ba
The above three messages keeps scrolling on the LCD panel displaying Inverter
Parameters one by one in the sequence shown above,till Mains recover.
Front
Panel REV.17-03-07 (R)

5
Front
Panel
2. Overload Shudown Occurred
** PROTECTION **
Overload Shutdown
Reduce Load and
Restart Inverter
ab
4. List of Parameters displayed on LCD Under various Protection Condition
This display shows that Inverter is in Over Load Condition (Condition 1,See
above),i.e,the running load (VA) on the inverter is above the rated system capacity.
In this case system resets itself automatically and makes 4 attempts to turn ON
again.If the overload continues even after the 4th attempts,it turns OFF
permanently (Condition 2 above) and will turn ON only after the switch on the
front panel is turned OFF and then turned ON.
1. Overload Occurring - with buzzer
** Attention **
Overload > 100% ** Remedy ** Reduce Some Load
ab
3. List of Parameters displayed on LCD under mains ON & Inverter
Switch is in ON Condition.
Status
Updating Battery
c
__
Battery Level : %
d
Battery Charging / Battery Charged
MAINS ON
Displays Battery status in mains mode.
whether Battery is charging or Charged
a
_____
I/P Freq. : Hz
______
I/P Volt. : V
b
Mains I/P voltage & frequency
b. Short Circuit Occurred - with buzzer
** PROTECTION **
Short ckt. / Overload
* Remedy *
Check Wiring / Reduce Load / Restart Inverter
This Display shows that Short Circuit has occurred at the out put and Inverter has
gone into Shutdown immediately with continuos buzzer beep.Switch OFF the
Inverter.Switching off Inverter will stop beeping the buzzer immediately. Now
remove Short-circuit and then switch ON the Inverter.
c. Battery Low Attention - with buzzer
** REMEDY **
Reduce Load or Shutdown Inverter
This display shown when battery goes down to a set limit during discharge.(Condition 1,
See above)The buzzer will start beeping and the Inverter will Shut off after few minutes.
In this condition Inverter will make four attempts to restart again and if low battery
continues,it turns off permanently (condition 2,see above).It will turn ON only when
ON/OFF switch on the front panel is turned off and then switched ON.
a.
** ATTENTION **
Battery Low
1.1.
** PROTECTION **
Battery Low
1I.
REV.17-03-07 (R)

d. Mains MCB Trip
** PROTECTION **
Mains MCB Trip
** REMEDY **
Reset the MCB at back panel &
reset the Switch
This Display shows when the mains MCB is tripped.First switch OFF the mains and
Inverter.Now turn ON the Main MCB & then reset the switch to ON.
e. Mains Low Cut (Inverter Switch ON)
Mains Low Cut
Inverter ON BatteryV :____V O/P Load :_____%
This Display shows Low Cut protection.In this condition system comes on Inverter
mode and the mains will get cut off.The above three messages keep on scrolling on
the LCD panel one by one till Mains recover.
Mains Low Cut
Inverter Switch OFF I/PVolt :_____V
I/P Freq.:_____ Hz BatteryV :____V
f. Mains Low Cut (Inverter Switch OFF)
In this condition the system gets permanently shutdown.For using,Inverter
should be switched ON if the battery is charged.
Mains High Cut
Inverter ON BatteryV :____V O/P Load :_____%
g. Mains High Cut (Inverter Switch ON)
The Display shows High Cut protection.In this condition,the system comes on
Inverter mode and the mains will get cut OFF.The above three messages keep on
scrolling on the LCD panel one by one till Mains recover.
Mains High Cut
Inverter OFF BatteryV :____V O/P Load :_____%
h. Mains High Cut (Inverter Switch OFF)
In this condition the system gets permanently shutdown.For using,Inverter
should be switched ON if the battery is charged.
6
Front
Panel REV.17-03-07 (R)

1. 3 Way Input Terminal Block.
2. 3 Way Output Terminal Block.
3. Battery terminals.
4. Mains MCB.
5. Battery MCB.
6. Manual Bypass Switch
B) BACK PANEL
The Inverter has two battery terminals Mains MCB & Battery MCB,Input
terminal block and Output terminal blocks at the rear side.Connect the
two battery wires to the terminals of the battery,the red colored to positive
terminal and the black colored to the negative, seeing carefully the colors and
the positive and negative terminals of the battery.Ensure that incoming phase
(or line) is connected to line (red wire).Neutral is connected to neutral (black
wire) and earth is connected to earth (green wire).After this the output is
connected through the outputTerminal,at the rear of the inverter.
7
Back
Panel
MAINS MCB
BATTERY MCB
BATTERY
MAINS INPUT
N E L N E L
OUTPUT
54
ROTARY SWITCH
6
5KVA/96V
3
12
BATTERY MCB
MAINS MCB
45
BATTERY
INPUTINPUT Earth
O/P OUTPUT
7.5KVA/10KVA
6
1 2 3
REV.17-03-07 (R)

C) CONCEPT OF CHARGING
FIVE STAGE ATM PULSE CHARGING
BULK : Batteries are charged at maximum allowed continuous constant charging
current at constant voltage for speedy charging of battery up to 13.8V per battery.
BOOST :The charger checks the charging current when the battery voltage
reaches Max.13.8V for 12V batteries.The boost mode of the charger will be
activated,which will boost the battery Max.up to 15% more than its rated voltage
(13.8V for 12V batteries) and charging current reduced to 50% of bulk charging rate
(i.e.4 to 5Amp).
TAPER : When the voltage level of battery is 15% more than its rated voltage,the
taper mode of the charger will be activated,which will keep the charging current
about 4Amp to achieve the specific gravity of electrolyte for full charged battery.
FLOAT : In float stage,the charger keeps the charging voltage & current level at its
trickle charging set point Max.13.8V with minimum charging current 1.0Amp.
PULSE (RESET) :To maintain the float level,the charger resets to zero current
at Max.13.8V for some time and starts again with pulse charging of 1Amp current
at same voltage.This keeps the battery in full charge condition even when not in
use.
8
ConceptOf
Charging
REV.17-03-07 (R)

9
ATM Charger
ATM with Pulse charger is used for the first time in Inverters.Till now this
feature was available only in online UPS.
ATM stands forAutoTrickle Mode.
It is fully software controlled.
ATM with Pulse Charger charges the battery to its full capacity & after
charging,it maintains the battery at its Float voltage level,so theWater loss in
Battery is almost zero.
Conventional chargers always keep the battery above float voltage level thus
deteriorating the battery life & causing water Loss.
Auto Reset
Su-Kam DSP SineWave Inverter has auto-reset function in case of Overload,Short
Circuit and Low Battery.It will reset the Inverter in fault condition automatically
and will make 4 attempts for the same.If the fault condition is rectified within this
period then the Inverter will reset itself automatically.Otherwise it will shut off and
you will have to reset the Inverter manually by turning ON/OFF the switch on its
front panel.
Protection Circuitry
The Su-Kam DSP Sine Wave Inverter is protected from high battery voltage,
low battery voltage and short Circuit conditions.When the inverter senses one of
these situations, it will protect itself by disconnecting from the loads,and will signal
an error condition by displaying along with buzzer beeping.
The low battery cutout,high battery shutdown resets automatically.If an over
current condition continues for more than 20 seconds,the Inverter will show it in
display and shut down,which must be reset with the power button in front.
SALIENT FEATURES
Salient
Features
REV.17-03-07 (R)

Automatic Low Battery Cutout
The Su-Kam DSP SineWave Inverter protects your batteries from damage caused
by over-discharging by automatically shutting itself off when battery voltage falls to a
preset level.
This feature is called the Low battery cutout.The Su-Kam DSP SineWave Inverter
comes from the factory with the LBCO voltage set at 15% below the rated battery
voltage level.
Automatic High Battery Cutout
When battery voltage rises above 15% more than the rated battery voltage
(Max.13.8 for 12V Battery),the charger stops its normal charging and comes to the
float mode so as to take care of the self-discharge of the battery.The charger
automatically resumes operating when battery voltage drops to 10% more than the
rated battery voltage (Max.13.2 for 12V battery) volts.
Over Current Cut Out
Su-Kam DSP Inverter is protected from over current conditions.When the load
being run demands more current,the inverter shuts down automatically along with
display indication there for.
Battery Type Optimization
Su-Kam DSP Sine Wave Inverter is designed to prevent damage to batteries
and extend the useful life of your batteries by regulating the charging voltage and
duration.To do this,the inverter must be configured for the type of batteries in the
system.
Charge Rate Regulation
Batteries can overheat if the charge rate is too high.The Su-Kam DSP Sine Wave
Inverter protects your batteries by limiting the charging current,so that the
regulation can adjust the charging current to the optimum level.
10
Salient
Fetaures REV.17-03-07 (R)

Volts AC Dropout
Su-Kam DSP Sine Wave Inverter monitors the voltage of theAC power
passing through to the charger andAC loads.WhenAC voltage falls below the
preset level,the inverter automatically transfers fromAC to DC power (i.e.it
comes to inverter mode).This dropout voltage is factory preset at 140-150Volts.
So when theAC voltage drops to 140-150 volts,the inverter automatically
transfers fromAC to DC power.It will revert to mains with a hysteresis of 10V.
Reduces Inverter’s Power Consumption
In Su-Kam DSP SineWave Inverter the circuitry design reduces the power intake of
Inverter when the battery is in pulse charge mode and evaporation of battery
electrolyte is also minimised.
GETTING STARTED
Mounting
Mount the Inverter securely in horizontal position in a clean,dry and well
ventilated place.
DC Cabling
Ensure that the On/Off switch on the front panel of the Inverter and MCB's at the
rear of inverter are in the off position before you begin the installation.
Connect the positive wire (Red) of the battery to the positive Battery terminal of
the Inverter.It is advised not to use any other extra cable for batteries other than
those supplied by the company.
Connect the negative wire (Black) of the battery to the negative Battery terminal of
the Inverter.
AC Cabling
AC input supply is to be given at the terminal strip such that line is connected to line
terminal,neutral to neutral terminal and earth to earth terminal.
Wrap Up
Secure all the wiring with ties or other non –conductive fasteners to prevent damage.
Check to see that the Inverter front panel switch is in the off position,then
reconnect to theAC power source.
Turn the Inverter to the ON position and check Inverter operations.
11
Getting
Started
REV.17-03-07 (R)

INSTALLING THE INVERTER
Environment
Inverter is a sophisticated equipments and must be treated accordingly.Keep the
inverter in non-condensing,well ventilated environment ensuring that there is no
ingress of moisture or foreign materials.
Location
Locate the Inverter as close to the battery as possible in order to keep the battery
cables short,however do not locate the inverter in the same compartment as non-
sealed batteries.
Batteries generate gases which are very corrosive to electronic equipment and
everything else.
Mounting
Mounting the Inverter in a ventilated enclosure with sealed batteries is acceptable.
Never mount the Inverter in a closed container.To operate at high power for
sustained periods of time,unrestricted airflow is required.Without it the
protection circuitry will activate and reduce the maximum power available or cause
the complete shutdown of the inverter.As per standards inverter should be
mounted on a flat surface.
Note : Never disconnect the battery cables while the Inverter is
delivering power or battery charger is operating. The ON/OFF
switch has no effect on the charger, it turns OFF only the inverter.
To disconnect the batteries for service
a) Turn OFF the power switch, Switch OFF the MCB's at rear.
b) Disconnect all AC power,
c) Disconnect all the battery cables.
DC Cabling Connections
In Su-Kam Inverter the battery cables are colour coded according to the standards,
i.e.red for positive (+) and black for negative(-)
Fuses and disconnects must be sized to protect the wiring in the system.The fuse is
required to blow before the wire reaches its maximum current carrying capability.
AC Wiring
AC and DCWiring Separation
12
Installing
the
Inverter REV.17-03-07 (R)

AC and DCWiring Separation
Do not mixAC and DC wiring in the same conduit.A separate conduit should be
used for each.
ACWiring Connections
The following steps are a basic guidelines for installations and connections of the
AC wiring into and out of the Inverter.
Disconnect the Inverter from the battery bank (if already connected)
ConnectAC input supply to the terminal strip of the inverter such that line is
connected to‘L’,neutral is connected to‘N’ and earth is connected to‘E’.AC
input supply should remain ON once the inverter is installed.Take output
from OutputTerminal Block or socket.
Important Precaution
The output side of the Inverter’sAC wiring should never be connected to a
generator or incoming utility power.This condition is far worse than a short circuit.
If the unit survives this condition,it will shut down until correction is made.
OPERATION
Once theAC and DC wiring have been installed and connected,take a moment to
go back over all the connections and make sure that wiring is secure and in the
proper terminals.
1. Check to see that the Inverter is turned off,then apply battery (DC) power
to it.Ensure that all wiring has been installed properly.Next turn on the
battery bank DC disconnects or connect the proper fuse in line to the
battery to complete the battery circuit.
2. Put Power switch to the ON position.The Inverter should run a load without
AC input (battery only).Place a load on the inverter and make sure it works.
3. To charge your batteries connectAC power to the Inverter by plugging in
theAC power and turning ON the mains line.The inverter should show the
mains on,battery charging on display.This shows that charger is working
properly.AnyAC loads powered by the inverter should also work at this point
since a portion of theAC power is passed through the inverter to power the
loads.The delay before connecting is provided while the Inverter is sampling the
AC power to see that it is within acceptable frequency and voltage limits.
13
Operation
REV.17-03-07 (R)

Batteries
&Battery
requirements
4.Disconnect theAC power :The Inverter should transfer to inverter mode
immediately.This will be indicated by a clicking sound as the internal transfer
relays change position.The inverter will begin to take power from the batteries and
use it to power the loads.The loads should continue to operate uninterrupted.
The above steps will complete a functional test of the inverter.If all areas pass,the
inverter is ready for use.If any area fails,figure out why before proceeding.
BATTERIES
There are two principal types of batteries,starting and deep cycle.There are several
different types of battery chemistries including liquid lead acid,nickel iron,nickel
cadmium,alkaline,and maintenance free.Batteries are sealed or vented.
Starting Batteries Automotive
Starting BatteriesAutomotive are designed for high cranking power,but not deep
cycling.Do not use them with your inverter.They do not hurt the inverter but they
simply will not last long in a deep cycle application.They use lot of thin plates to
maximize the surface area of the battery.This allows very high starting current but
lets the plates warp when the battery is cycled.
Deep cycle Batteries
Deep cycle batteries are best suited for use with inverters.They are designed to have
the majority of their capacity used before recharge.Available in many sizes and types,
the most common type is the non- sealed,liquid electrolyte battery.Non-sealed
types have battery caps.The caps should be removed at least monthly to check the
level of electrolyte.When a cell is low,only distilled water should be added.The
electrolyte level should be checked and topped up if needed after recharging.A
hydrometer can also be used to check the specific gravity of the battery,which should
be around 1260 in full charge condition.
BATTERY REQUIREMENTS
Environment
For long life and good performance,batteries need to be located in protected
enclosures insulated from extreme temperature.
14
REV.17-03-07 (R)

Location : Batteries should be located in an accessible location with access to the
battery caps and terminals.At least six inches of clearance above is recommended.
They must be located as close as possible to the inverter.
Enclosures : Batteries must be kept inside a ventilated enclosures.The enclosures
should be ventilated to the outdoors from the highest point to prevent accumulation
of hydrogen gasses released in the charging process.An air intake should also be
provided at a low point in the enclosures to allow air to enter the enclosure to
promote good ventilation.For most systems,a one-inch diameter vent pipe from
the top of the enclosures is adequate to prevent accumulation o f hydrogen.
BATTERY BANK SIZING
Batteries are the inverter’s fuel tank.The greater the (Ah) capacity of the batteries,
the longer the inverter can operate before recharging is necessary.An undersized
battery bank results in reduced battery life and disappointing system performance.
Batteries should not be discharged more than 50% of their capacity on a regular
basis.Under extreme conditions,cycling to a discharge level of 80% is acceptable.
Totally discharging a battery may result in permanent damage to it and reduced life.
TERMINOLOGY
Here is a description of terms with which you may not be familiar with :-
Electrolyte :Typically a mixture of water and sulphuric acid,it is commonly referred
to as battery acid.
Plates :Originally made of lead,now fabricated from lead oxide.Plates connect to
the battery terminals and provide a structure for the chemicals that create current.
There are several plates in each cells;each insulated from the other by separators.
Sulphating :As a battery discharge,its plates become covered with lead sulphate.
During recharging the lead sulphate leaves the plates and recombines with the
electrolyte.If the lead sulphate remains on the plates for an extended period of
time(over two months),it hardens ,and recharging will not remove it.This reduces
the effective plate area and the battery’s capacity.
Stratification :Over time a battery’s electrolyte( liquid ) tends to separate.The
electrolyte at the top of the battery becomes watery while at the bottom it becomes
more acidic.This effect is corrosive to the plates.
Deep Discharge :A deep discharge occurs when a battery is discharged to less than
20% of its capacity(80% depth of discharge).
15
Terminology
REV.17-03-07 (R)

TROUBLE SHOO TING
Symptoms
Main power is coming.Inverter shows
mains MCBTrip on its display panel
No power during backup mode
Inverter does not operate
Inverter Trips Frequently At Backup
Mode
Check the battery connections and the mains connections
Symptoms
There is no output power
System. shuts down after
20 sec no display at all
LowAC output voltage
Low surge power
Problem
(1) Low Battery
(2) Loose or corroded batt.Connections
(3) LooseAC output connection
Output of Inverter is wired back to its own
input
Remedy
Check condition of batteries and recharge.
Check and clean all connections
Check allAC output connections
Check for properAC input and output wiring
Meter must be a true RMS reading meter
Refer to cable and battery recommendations
in this manual
Weak batteries,battery cable too long
Measuring with the wrong typeVoltmeter
Reduce the load and restart Inverter through PowerActive Switch.
Reduce the load and reset the mains MCB given at rear side of the Inverter.
(1)Check if low battery graphic symbol is glowing,switch OFF the Inverter
by power active switch.Allow the battery to charge when the mains is
resumed before running the Inverter on battery again.
(2) Check if overload/short circuit graphic symbol is glowing.Reduce load
and reset theInverter by PowerActive switch.
Rectifications
16
Trouble
Shooting REV.17-03-07 (R)

MainsA.C.Low cut 110 ± 5V
MainsA.C.Low cut Recovery 120 ± 5V
MainsA.C.High cut 280 ± 5V
MainsA.C.High cut Recovery 270 ± 5V
INPUT P ARAMETERS
TECHNICAL SPECIFICATIONS
Charging Current (Settable)
Charging BoostVoltage
Charging FloatVoltage
Battery LowerVoltage Limit
Recommended Battery capacity
6A-20Amp
14.0V ± 0.2V per battery
13.7V ± 0.2V per battery
10.0V ± 0.2V
100Ah - 200Ah
BATTERY
DSP Controlled PWM charging with Soft start over full range of Mains
Mains Output Frequency Same as Input (45Hz-55Hz)
Inverter Output Frequency
OUTPUT P ARAMETERS
50.0 Hz.± 0.1 Hz
OutputVoltage with Full Load 220V
Wave form
Overload
Short Circuit protection
± 5V
Above 110%
>300% Load (Few mSec)
MODEL
CAPACITY CLS-5K
5KVA
CLS-7.5K
7.5KVA
CLS-10K
10KVA
Pure SineWave
TECHNOLOGY
!Digital Signal Processing (DSP).
!PWM controlled IGBT based CC / CV charger with soft start.
17 REV.17-03-07 (R)
Technical
Specification
CLS-3K
3KVA