Projecta INVCHR2 User manual

INTELLI-GRID 12V
INVERTER CHARGER
P/No INVCHR2, INVCHR3

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WARNING
• High Voltages inside
• The appliance is not to be used by persons (including children) with reduced physical, sensory
or mental capability, or lack of experience and knowledge, unless they have been given supervision of
instruction.
• Children being supervised not to play with the appliance.
• This device can only charge 12V batteries:-
INVCHR2 can charge
• 12V Lead acid batteries from 100~2400Ah
• 12V Lithium batteries from 100~1200Ah
INVCHR3 can charge
• 12V Lead acid batteries from 100~3600Ah
• 12V Lithium batteries from 100~1800Ah
• When charging Lead Acid batteries or vented batteries, the batteries must be placed in well-ventilated
area when charging.
CAUTION: THE DC FUSE MUST HAVE BEEN TURNED OFF BEFORE SERVICING

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1. General Safety Instruction
1.1 Safety instruction
As dangerous voltages and high temperature exist within the Inverter Charger, only qualied and
authorized maintenance personnel are permitted to open and repair it. Please make sure Inverter Charger
is turned off before opening and repairing it.
This manual contains information concerning the installation and operation of the Inverter Charger.
All relevant parts of the manual should be read prior to commencing the installation.
Please follow all local laws and regulations. Any mis-use of the product according to the manual will not
be covered by warranty.
1.2 General precaution
• DO NOT expose to dust, rain, snow or liquids of any type, the inverter is designed for indoor use.
DO NOT block off ventilation, otherwise the Inverter Charger could overheat.
• To avoid re and electric shock, make sure all cables selected are the right gauge and all
connections are tight. Smaller diameter and damaged cables are dangerous and could risk re.
• Please do not put any ammable goods near to inverter.
• NEVER place unit directly above lead acid batteries, gases from a battery will corrode
and damage Inverter Charger.
• DO NOT place battery on top of Inverter Charger.
1.3 Precaution regarding battery operation
• If battery acid makes contact with your skin use plenty of water wash the acid off.
If acid goes on your clothes remove these clothes. If irritation to the skin occurs see medical
advice.
• Lead Acid batteries may generate ammable gas during charging. NEVER smoke or allow a spark
or ame in vicinity of battery.
• DO NOT place metal tools on the battery, a spark may occur and a short circuit might lead
to explosion.
• REMOVE all personal metal items such as rings, bracelets, necklaces, and watches while
working with batteries. Batteries can cause short-circuit current high enough to make metal
melt, and could cause severe burns.

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2. Instruction
2.1 Brief Instruction
2.1.1 General Description
INVCHR2 and INVCHR3 are 2-in-1 inverter chargers designed for high power management applications
such as RV, utility vehicles, marine and emergency.
With the rapid charging capability of Projecta’s lithium batteries, the Inverter Chargers can provide high
current charging from a mains source and are capable of starting and powering the most demanding
appliances, such as air conditioning, water pumps, washing machine, freezer, compressor, power tools and
induction cooktops.
The inverter charger is tted with an AC transfer switch which manages the AC power automatically
switching between mains power and inverter power.
With their Grid Boost feature, INVCHR2 and INVCHR3 can work with a limited AC source such as a
generator or restricted AC mains to provide an additional boost using DC power.

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2.2 Structure
2.2.1 Front
2.2.2 Control panel

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Table 2-1 LED directive funtion
LED Function
Invert It will illuminate when unit is inverting.
AC In It will ash when unit detect any input, mains or generator.
Charge It will ash when unit is in oat charging.
It will illuminate when unit is in bulk or absorption charging.
Warning It will ash when unit has warning.
Fault It will ash when unit has error.
2.2. Bluetooth LCD monitor (P/No. INVCHR-BT)
Allows users to remotely monitor and control Projecta Inverter Chargers. Displays battery voltage*,
current*, inverter load percentage, AC input/output voltage, frequency and power. Battery status can also
be monitored via smart phone or tablet if connected with Bluetooth.
• Remotely switch on/off inverter.
• Will show battery information when a Projecta HD series lithium battery is connected to the system.
• The APP can be downloaded from the APP store or Google play under PROJECTA Inverter Charger
(INVCHR2/3)
Figure 2-3 Remote control and monitor MCK

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2.2.4 Connection compartment
Figure 2-4 Signal terminal
Table 2-2 Signal terminal introduction
No. Silk-screen Denition
1 Bat Sample Battery temperature and voltage sample.
2 Remote A dry contact input for remote on/off
3 Com MON RS485 port for external monitor such as INVCHR-BT
4 Com Sync Communication with Projecta’s HD series lithium batteries for advanced
monitoring
5Relay1
(NO,C.NC) Dry contact output control 1(NO,C,NC)
6Relay2
(NO,C.NC) Dry contact output control 2(NO,C,NC)
7 S+ Slave Charger for Starter Battery

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2.2.5 Dimension
Figure 2-5 Dimension of unit
2.3 Inverter Charger Functions
Grid Boost is a useful feature when limited grid supply is available or working with a generator. The
Inverter Charger will disconnect the mains AC power providing power from the inverter and battery or
boost this power using AC mains and the inverter / battery power. With this feature, you can avoid
tripping a shore power circuit breaker or reduce generator capacity by up to 50%.
2.3.2 Powerful and Reliable Inverter
High performance pure sine wave
INVCHR2 and INVCHR3 are pure sine wave inverters generating a near perfect waveform.
High surge power capability
Providing outstanding surge power capabilities you can easily run heavy inductive loads like fridges,
coffee makers, microwaves, power tools, air conditioning and induction cooktops.
Battery low voltage protect
Inverter Charger provides congurable battery low voltage protection.
2.3.3 Professional Battery Charger for lead acid battery
Multi stage sophisticated charging algorithm for lead acid battery
INVCHR3-48V
INVCHR3
INVCHR2
270
510 144
272
513 144

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Fitted with multistage charging algorithm (bulk-absorption-oat-recycle), the built-in charger of
Inverter Charger is designed to charge the battery quickly. Microprocessor controlled charging algorithm
with variable absorption charging timer will guarantee optimal charging for batteries of different
discharged state.
Figure 2-6 Multi stage sophisticated charging algorithm for lead acid battery
Float charging and recycle charging program guarantee your battery is getting proper maintenance
in case of long standby periods providing less aging.
Battery Sample Cable (Temperature and voltage)
Battery temperature is a key factor in correct charging for lead acid batteries. The charging formula must
be adjusted (automatically and in real time) according to the actual battery temperature to ensure that
the battery is fully charged but not overcharged or undercharged. All charging voltages recommended by
battery manufacture are in fact ONLY applied at 20°C-25°C and the temperature probe ensures optimal
charging..
The Bat sample cable (battery temperature and voltage sensor) supplied with Inverter Charger
measures the temperature of battery and automatically makes adjustments at real time to properly
charge your batteries at compensation rate of – 4mV/°C/cell. In case of Bat sample cable is not
present, Inverter Charger will use 25°C as default setting. This feature is especially recommended
for sealed batteries and/or when important uctuations of battery temperature are expected.
Different battery chemistries
Inverter Charger offers premium charging algorithm for commonly encountered lead acid battery
chemicals include AGM, GEL, Wet, lead-carbon and Lithium battery, of which you can set
through the LCD/LED interface.

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2.3.4 Lithium Battery Compatible
Projecta Inverter Chargers support universal LFP charging prole and offered pre-dened LFP charging
prole for Projecta HD series lithium batteries.
Built in BMS pre-dened LFP charging and communication for LBXXX-HD series batteries.
According to cell temperature and real time SOC, BMS will send commands to battery charger asking for
optimum charging voltage and current. This synchronization will prevent overheating or overcharging
especially at the end of charging, to extend the life of the battery.
Instead of using voltage as protection, SOC value is used to avoid permanently damaging of lithium
batteries due to being left discharged for long time.
2.3.5 AC Transfer Switch
In case of poor AC mains power (due to poor voltage/ frequency or waveform characteristic, the Inverter
Charger will switch to inverter and battery power.
In case of AC mains failure or exceeding the maximum AC input current set by the user, the Inverter
Charger will initiate a quick switch to inverter, which will guarantee continuous power. When stable AC
power is resumed, the inverter charger will switch back to AC mains power after a 5 second delay. Due to
its ultra quick transfer design, as quick as 0ms. The Inverter Charger could be used as a UPS.
Ground Relay
The neutral output of Inverter Charger is automatically connected to earth upon no external AC sources
are available. Once external AC sources present, the ground relay will open. The Ground relay is required
for the RCD to function correctly.
Figure 2-7 Ground Relay Schematic

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2.3.6 Protections and Safeguards
The Inverter Charger is equipped with a series of complete hardware and
software protection functions to ensure its stable and reliable operation.
Overload protection
When overload protection is trigger on, it will restart automatically after 60s. And after three
consecutive overload shutdown protections, the equipment will not restart automatically. At this
time, the user needs to manually restart.
Over temperature protection
When the internal temperature is too high, Inverter Charger will enter into the over-temperature
protection. After the internal temperature returns to normal, it can automatically resume normal
operation.
Short circuit protection
The equipment will automatically shut down when the AC output is shorted and needs to be
manually activated.
Battery over temperature protection
During charging, the equipment will continuously monitor the battery temperature. When the
battery temperature is too high, the equipment will automatically reduce the charging current.
When the battery is hot the charger will automatically turn off to protect the battery.
Battery low voltage protection
To prevent the permanent damage caused by the over discharge of battery, the equipment
will automatically cut off the output according to the low voltage protection point set by the user.
RCD (RCBO)
The Inverter Charger is tted with an RCD (Safety Switch) to ensure maximum protection for our
customers. The RCD is also tted with an over current feature to protect wiring. If the RCD trips it will
need to be manually reset.
2.3.7 Communication
Dry contact input
Inverter Charger is equipped with a dry contact input for remote on/off,
Dry contact output
Inverter Charger is equipped with two NO/NC relay type dry contact output. The following is
the default setting:
- Relay1: The relay is closed when the battery is under voltage.
- Relay2: The relay is closed when a fault or overload occurs.
RS485
Equipped with a RS485 interface

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3. Installation and Wiring
Keep away from re, avoid direct sunlight and rain; do not store near ammable, explosive
or corrosive gases or liquids. Don’t install in a working environment where metal dust can
get into the inverter charger.
• Please install the equipment in a location of dry, clean, cool with good ventilation.
• Operating temperature: -20~65°C
• Storage temperature: -40~70°C
• Cooling: Force fan
• Relative humidity in operation: 95% without condensation.

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4. Operation
4.1 Check before Operation
Please check before Operation according to the following.
• Inverter is installed correctly and steady.
• Reasonable cable layout to meet customer requirements.
• Make sure the grounding is reliable.
• Make sure the ground wire is properly connected, rm and reliable.
• Double check the battery breaker is OFF.
• Make sure the cables are properly connected, rm and reliable.
• Ensure there is plenty of space around the inverter charger and the area is clean and tidy.
4.2 Power ON Test
Make sure the battery voltage is within the permissible range before turning
ON the breaker.
Note: there are three ways the inverter / charger can work
1. Default (test mode)
2. Fitted with Remote P/n: INVCHRD-BT.
3. Without remote or INTELLI-Grid connected.
Default Test Mode
Please follow the following instruction step by step.
• Step 1: Turn on the circuit breaker between the battery and the inverter.
• Step 2: Press the On/Off button to turn on the inverter entering into self diagnostic.
• Step 3: Press the On/Off button again to turn on the inverter.
• Step 4: Observe the LED light to make sure the inverter is running normally.
(refer toTable 2-2 LED directive function)
Power OFF
After the inverter power is turned OFF, there is still residual power and heat in the
chassis, which may lead to electric shock.
- Method 1:Press the On/Off button about 2secs to turn off the output of inverter. Afterwards,
you can press and hold the On/Off for 5secs, after hearing consecutive beep, you can
permanently shut down the inverter.
- Method 2: Press and hold the On/Off for 5secs, after hearing consecutive beep, you can
permanently shut down the inverter straight away.
Remote connected (P/n: INVCHRD-BT)
STEP 1: Turn on the circuit breaker between the battery and inverter.
STEP 2: Turn on the switch on the Remote (P/n: INVCHRD-BT). The inverter should now be working.
STEP 3: Turn the switch off to turn the inverter off.
Inverter Charger Previously used with Remote or INTELLI-Grid system
with no remote connected
STEP 1: Wire in with a latching switch to the remote connections inside the wiring compartment.
STEP 2: Turn on the switch, this will turn the inverter on.
STEP 3: Turn the switch off to turn the inverter off.

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5. Conguration
Settings may only be changed by a qualied person. Read the instructions thoroughly before
implementing changes. During setting of the charger, the AC input must be removed.
5.1 Default Setting
Table 5-1 INVCHR2/INVCHR3t factory settings
System Rate AC Voltage 230VAC
Rate AC Frequency 50Hz
Battery
Battery Type AGM
Battery AGH 200AH
Max Charge Current 100% of the Max charge current
Absorption Voltage 14.4
Float Voltage 13.5
Undervoltage Protect Recover 13.0
Undervoltage Warning 11
Undervoltage Protect 10.5
Deep Undervoltage Protect 9.9

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AC Input Power Assist Cur 16
6. Specication
Model INVCHR2 INVCHR3
Power Assist YES
AC input Input Voltage Range: 175~265 VAC, Input Frequency: 45~65Hz
AC input Current 32A (transfer switch)
Inverter
Nominal battery voltage 12VDC
Input voltage range 10.5~17VDC
Output Voltage: 220/230/240 VAC ± 2%, Frequency: 50/60 Hz ± 0.1%
Harmonic distortion <2%
Power factor 1.0
Cont. output power 25°C 2000W 3000W
Output power (30min) at
25°C 2150W 3200W
Peak Power 4000W 6000W
Cont. output power at 40°C 1800W 2700W
Maximum efciency 93%
Zero load power 12W 16W
RCD safety switch 16A/30mA
Charger
Charge voltage “absorption” 14.4VDC
Charge voltage “oat” 13.8VDC
Battery types AGM / GEL / OPZV / Lead-Carbon / Li-ion / Flooded
Battery charge current 120A 180A
Temperature compensation YES
Slave charger 3A
General Data
AC Output Current 32A (Limited by the 16Amp RCD 16A)
Transfer time <2ms(<15ms when WeakGrid Mode)
Remote on-off Yes
Programmable relay 2x
Protection a) output short circuit, b) overload, c) battery voltage over voltage
d) battery voltage under voltage, e)over temperature, f) Fan block
g) input voltage out of range, h) input voltage ripple too high
General purpose com. Port RS485
Operating Temperature range -20 to +65˚C
Storage temperature range -40 to +70˚C
Relative humidity in operation 95% without condensation
Altitude 2000m

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Model INVCHR2 INVCHR3
Mechanica Data
Dimensions 513x275x145mm
Net Weight 18.3kg 21kg
Cooling Forced fan
Protection Index IP20
Standards
Electrical Safety Certied Yes
EMC EN61000-6-1,EN61000-6-2,EN61000-6-3,
EN61000-3-11,EN61000-3-12

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NOTES

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NOTES

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NOTES

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WARRANTY STATEMENT
Brown & Watson International Pty Ltd (“BWI”) of 1500 Ferntree Gully Road, Knoxeld,
Vic., telephone [phone], fax [phone], warrants that all products described in
its current catalogue will under normal use and service be free of failures in material and
workmanship for a period of three (3) years from the date of the original purchase by the
customer as marked on the invoice. This warranty does not cover ordinary wear and tear,
abuse, alteration of products or damage caused by the purchaser.
To make a warranty claim the consumer must deliver the product at their cost to the
original place of purchase or to any other place which may be nominated by either
BWI or the retailer from where the product was bought in order that the warranty
assessment may be performed. The consumer must also deliver the original invoice
evidencing the date and place of purchase together with an explanation in writing as
to the nature of the claim.
In the event that the claim is determined to be for a minor failure of the product then BWI
reserves the right to repair or replace it at its discretion. In the event that a major failure is
determined the consumer will be entitled to a replacement or a refund as well
as compensation for any other reasonably foreseeable loss or damage.
This warranty is in addition to any other rights or remedies that the consumer may have
under State or Federal legislation.
IMPORTANT NOTE
Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage. You are also entitled to have the goods
repaired or replaced if the goods fail to be of acceptable quality and the failure does not
amount to a major failure.
Distributed by
AUSTRALIA
Brown & Watson International Pty. Ltd.
Knoxeld Victoria 3180
Phone: [phone]
Fax: [phone]
National Toll Free: 1800 113
443
NEW ZEALAND OFFICE
Grifths Equipment Ltd.
19 Bell Avenue,
Mount Wellington,
Auckland 1060, New Zealand
IS501
Issue 1 06/04/22