opti-solar SP4000-AVR User manual

Inverter + UPS
Hybrid Inverter series
User’s Manual
Sine Wave Output
SP4000-AVR
www.opti-solar.com

www.opti-solar.com
2
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS.
This manual contains important instructions that you should follow during installation and
maintenance of the Inverter and the batteries. Please read all instructions before operating the
equipment and save this manual for future reference.
When replacing the batteries, use the same number and the same type of batteries.
Do not dispose of batteries in fire; batteries may explode.
Do not open or mutilate the battery or batteries, released electrolyte is harmful to skin and
eyes.
A battery can present a risk of electric shock and high short circuit current. The following
precaution should be observed when working on batteries.
Remove watches, rings or other metal objects.
Use tools with insulated handles.
To increase the balance of the inverter, the additional stabilizer is to be mounted at the bottom
side.
This unit should be installed by qualified personnel.
The equipment can be operated by any individuals with no previous experience.
The socket-outlet should be installed near the inverter and should be easily accessible.
The total leakage current of the equipment connected to the inverter should not exceed 3.5mA.
Attention: Danger of electric shock. The batteries connected to the inverter carry the charge
that pose a danger of electric shock even when the inverter is disconnected from the AC mains.
The battery supply should be therefore disconnected at plus and minus terminals by removing
the battery fuses accessible from the rear panel of the inverter, before conducting maintenance
or service work inside the inverter.
The chemical substances of the lead acid batteries are hazardous.
Batteries must be recycled

www.opti-solar.com
3
CAUTION
The inverter wiring and operation instructions in this manual must be followed strictly.
The inverter must be connected to a nearby wall AC outlet, which must be easily accessible,
so as to enable the inverter to be disconnected from the AC power source by pulling the
power cord out of the AC socket, in case of emergency.
Check that the indications on the rating plate correspond to your AC power system and to
the actual electrical consumption of all the equipment to be connected to the inverter.
Never install the inverter near liquids or in an excessively damp environment.
Do not let foreign objects penetrate the inverter.
Never block the ventilation grates of the inverter.
Never expose the inverter to direct sunlight or a heat source.
If the inverter is to be stored prior to installation, the storage environment must be dry.
The storage temperature range is -15˚C to +55˚C.
All handling operations require at least two people (unpacking, installation in rack systems).
Once the inverter is installed and connected to the AC power source for the first time, it will
start charging the batteries. Full charging to obtain the rated on-battery backup time
requires at least 8 hours.
Before and after installation, in case of any doubt, do not hesitate to contact our customer
support team.

www.opti-solar.com
4
Special Symbols
The following are examples of symbols used on the unit to deliver you the
important information.
CAUTION
RiskofElectricShock
DoNotOpenCover
CAUTION Toreducetheriskofelectricshock
Donotremovecover
Nouser-serviceablepartsinside
Forservicerefertoan authorizedserviceagent
RISK OF ELECTRIC SHOCK
Indicates that a risk of electric shock is present and the
associated warning should be observed
CAUTION; REFER TO USER’S MANUAL
Refer to this user’s manual for additional information, such
as important operation and maintenance information.
SAFETY GROUNDING TERMINAL
Indicates the primary safety ground.
RJ-45 RECEPTACLE
For 230V units only, this receptacle provides network
interface connections. Do not plug telephone or
telecommunications equipment into this receptacle.
RECYCLE
This symbol indicates that you should not discard the
inverter or the inverter batteries together with
common trash. The inverter and the sealed, lead-acid
batteries must be recycled.

www.opti-solar.com
5
TABLE OF CONTENTS
1 OVERVIEW AND FEATURES............................................................................6
2 INFORMATION PRESENTATION .....................................................................7
2.1 LED display models..................................................................................7
2.2 LCD display models .................................................................................7
2.3 Description of the Rear panel .................................................................8
3 INSTALLATION ...............................................................................................9
4 OPERATION .................................................................................................10
5 INDICATION AND CONTROL.........................................................................13
5.1 LED Display ...........................................................................................13
5.2 LCD Display ...........................................................................................13
5.3 Audible alarms ......................................................................................15
5.4 Auto Self-test Function .........................................................................15
5.5 Remote Control.....................................................................................16
5.6 Reset the Inverter..................................................................................16
5.7 DIP Switch Settings................................................................................16
6 COMMUNICATION INTERFACE .....................................................................17
7 TROUBLESHOOTING.....................................................................................18
8 SPECIFICATIONS: SP4000-AVR.......................................................................19

www.opti-solar.com
6
1OVERVIEW AND FEATURES
The SP-AVR series inverters are advanced and user-friendly power supply units designed to
provide pure sine-wave uninterruptible power to your connected equipment; besides the
big charger capable of charging batteries with up to 35A current (depending on model), the
inverter unlike the traditional ones, also provides a very short transference when blackouts
happen; thus, you may apply it as a UPS, too.
Further, it is also made with Wide Range AVR, offering an output as narrow as ±10% from
the nominal power, while the input power range can vary as large as 140V ~ 310V in the
rated 230V areas; or 70V ~ 155V in the 110V areas. With the wide AVR, you won't need to
use the valuable battery energy during over- and under-voltages. The SP-AVR series
provide the efficiency of over 97% under normal power conditions, and of 86% when
working in the inverter mode. Two charge modes, quick and trickle charge, are applied in
the charger, so as to maintain the batteries in the best condition.
With outstanding performance and reliability, the unique benefits of the inverter include
the following:
Pure sine wave output.
Microprocessor based design with true Line-Interactive structure, DC/AC Isolation.
Remaining Estimated On-Battery Backup Time indication (EBT system on LCD version).
Wide input range 140V~310V for 230V areas; and 70V~155V for 110V areas.
Adjustable charging voltage & voltage-transfer points.
Smart battery management with intelligent double stage charging control.
Adjustable charging current by DIP switch for different types of batteries.
Real time auto-detection of battery condition.
Automatic restart after Inverter shutdown, when the AC power comes back.
Smart AVR function (two buck and two boost modes).
Generator compatible.
Start on Batteries (cold-start) in the absence of AC mains power.
“Green Power” design with auto on/off function and adjustable levels.
Network manageable (optional SNMP support).
Optional RS-232/USB interface for communication, compatible with all major
operating systems, including Microsoft Windows, Linux, SCO UNIX and DOS.
Protection for overload, short circuit and overheat; thermal controlled cooling fan.
Supports solar panel input for charger (Optional)

www.opti-solar.com
7
2INFORMATION PRESENTATION
2.1 LED display models
There are variations for information representation via LED indicators for different models,
still they share the same control method. Please refer to the following example:
LEDs of battery voltage level and load level.
LED of operation status.
Control Button
2.2 LCD display models
The following is one example of LCD display; the location of control buttons could be
different for some models; however, the functions of buttons are the same.
Main control button.
LCD screen.
Selection button for mode & value.

www.opti-solar.com
8
2.3 Description of the Rear panel
1. Circuit Breaker for Input.
2. Input Terminal.
3. Output Terminal and/or Outlet(s) (NEMA or IEC).
4. RS-232 Interface port (for applications with optional monitoring software)
5. DIP Switch.
6. RJ-45 Interface for a Remote LCD display (Optional).
7. Battery connector.
8. Auto-bypass ON/OFF Switch (Turn the switch ON to enable Auto-bypass function).
9. Bypass LED Indicator.

www.opti-solar.com
9
3INSTALLATION
3.1 Inspect the packing carton for damage that may have occurred while in transit.
Immediately notify the carrier and your reseller if any damage is found. Retain the
package for future use.
3.2 Plug the power cord into a 3-wire grounded AC power wall receptacle. If an
extension cord must be used between the Inverter and the nearest utility power
source, use a 3-wire cable with rating not less than specified for the load level you
are going to connect, as stated in paragraph 8 of the specifications.
3.3 Connect the DC input power cord to the battery bank. Mind the battery bank’s
voltage and the polarity. The inverter must be as close as possible to the battery
bank to avoid the voltage drop on the power cord.
3.4 Connect your equipment to the Inverter. To ensure your home appliances are
powered and protected during utility failures, it is important to make sure that the
maximum power needed by the equipment is not exceeding the rated capacity of
the Inverter. Red LED will light up (LED version), or the “Over load” symbol will
show up (LCD version), and alarm will beep if the load exceeds the rated value of
the Inverter. If the overload is severe, the Inverter will shut down immediately to
protect itself.

www.opti-solar.com
10
4OPERATION
4.1. Once connected to the normal city power, the inverter will automatically start
charging the batteries. When the inverter is OFF, the inverter would still perform
the battery charging, and the status LED (in LED version) would blink green every 2
seconds; or in LCD version, the battery symbol and battery level would blink every
second. If AC auto turn-on function is enabled, the inverter turns ON automatically
when city power is normal. If auto turn-on is disabled, please long-press the
ON/OFF button on the front panel for 1 second to turn the Inverter ON; the Inverter
will give power to the outlets.
4.2. Long-pressing the ON/OFF button for 4 seconds will turn OFF the power on the
outlets. But, the inverter will keep charging the batteries if the city power is normal.
To stop the charging, please pull out the Inverter input power cord to shut down
the inverter completely.
4.3. DC Start: During a blackout, long-press the ON/OFF button for 1 second to enter the
“OFF” mode (LCD showing “OFF” or LED blinking in amber); then long-press the
ON/OFF button again for 1 second, and the inverter will turn ON and enter into on-
battery mode. To turn OFF the power from inverter please long-press the ON/OFF
button for 4 seconds; then the status LED (in LED version) will start blinking in
amber every 2 seconds; or LCD display will show “OFF” (in LCD version); then after
10 seconds the Inverter will turn OFF the power.
4.4. Auto-Bypass: When the auto-bypass function is enabled, the Inverter will transfer to
by-pass mode any time when the inverter is turned OFF. It prevents the important
connected equipment from a power loss if overload or any abnormal situation
triggers the shut-down function of the Inverter.
4.5. When in on-battery mode if the battery voltage is too low or too high, the inverter
emits an alarm, if the under voltage or over voltage is severe, the inverter turns OFF.
4.6. When a blackout happens, the buzzer emits two beeps every 8 seconds during the
first minute of the blackout. You can disable the alarm by a short-pressing the main
control button. Short-pressing it again re-enables the alarm. The setting can be seen
on the LCD display.
Note: The main control button provides test function at normal mode, but gets an
alarm-reset function when in on-battery mode.
4.7. The Inverter provides two charging modes for the battery: quick charging and
trickle charging. The quick charging provides higher charging current when battery
is empty and reduces the charging current as the battery voltage increases. The
trickle charging begins automatically after the battery is 90% fully charged.
4.8. The Green mode is set up using the UPS wizard software or through the LCD display.
When “Green Power” function is enabled, the inverter turns OFF the power within
60 seconds after blackout occurs if the power consumption of the connected
equipment is lower than the pre-set level (adjustable from 1% to 14% of full load).
The default value of green mode setting is 0% (disabled). Please use the UPS wizard
software to adjust this level.

www.opti-solar.com
11
4.9. There are two ways to change the settings of the Inverter. The first way is to use the
UPS Wizard software. The second way is to make it through the LCD display, using
the following steps:
4.9.1. Press the two selection buttons and at the same time for 3 seconds
until the LCD display begins to blink.
4.9.2. To change the inverter O/P frequency at DC start, when the frequency value
is blinking, push any selection button, or for 1 second to change the
frequency setting. The setting will keep changing every 2 seconds if you keep
pushing the button. Push two selection buttons at the same time for the
next setting, or leave the LCD blinking without pushing any button for 30
seconds to finish setting the Inverter and to return to the normal mode.
4.9.3. To change the inverter rated voltage, when the voltage value is blinking,
push any selection button for 1 second to change the rated voltage. Keep
pushing the button until the required voltage appears on the LCD screen.
Then, push two selection buttons at the same time to change to the next
setting or leave the LCD blinking for 30 seconds to finish setting the Inverter
and to return to the normal mode.
4.9.4. To change the Auto-Turn-ON setting at the recovery of utility power choose
the required setting the similar way. If you do not need the Auto-Turn-ON
function, please select “oFF”. Select “On” if you need you Inverter to turn
ON immediately after the recovery of the utility power. The “On.S” means
auto turning ON in the safe mode. When the battery has been depleted
after a long blackout, after the utility has been restored, the Inverter having
the Auto-Turn-ON function enabled would turn ON but would have a very
short on-battery backup time if a blackout is to happen again following a
short time recovery. Selecting “On.S” will ensure that the Inverter turns ON
automatically only after the battery has been charged up to at least 30% of
its capacity.
4.9.5. To change the green mode level browse the LCD settings until you see the
“Gn.X” indication, where X is any digit 0~9. If the “Gn.0” is blinking, the
green mode if disabled. The inverter will not turn OFF the power

www.opti-solar.com
12
automatically if there is no load connected to the Inverter. If the “Gn.1” is
blinking, the green mode level is set to 1% of full load. The inverter will turn
OFF the power automatically after a blackout occurs if the load level is less
than 1% of the rated full load. Push the selection button for 2 seconds at
least to increase the green mode level or push the to decrease the level.
Push the two selection buttons at the same time to end the setting.

www.opti-solar.com
13
5INDICATION AND CONTROL
5.1 LED Display
5.1.1 Battery level and load level LEDs
The battery level LEDs show the battery level both in back-up mode and in normal mode.
When the LED indicates 20% of the capacity in back-up mode, the Inverter is going to shut
down soon; the duration of backup time left depends on the load. When all five LEDs are
lighted in normal mode, the battery is fully charged.
The load level LEDs show the percentage of added load in relation to the Inverter’s rated
capacity. When all five LEDs are lighted, the Inverter is over loaded.
5.1.2 Operation status LED
The status LED shows the Inverter status. It lights in green when the utility power is normal
and in amber in the event of a utility outage (blackout); while if the Inverter is under fault
operation, it lights in red.
5.2 LCD Display
5.2.1 Main control button: Please refer to the paragraphs 4.1~4.6 and 5.3~5.4.
5.2.2 LCD screen

www.opti-solar.com
14
No.
Symbol
Indication
Description
1
Overload
The total load of the equipment connected to the Inverter exceeds the
rating of Inverter.
2
Load level
The higher the load, the more bars illuminate.
3
Inverter is
loaded
When the “Green Mode” is enabled, this symbol is displayed when the
load is over a preset level (adjustable, default is 0% = disabled), and
disappears when the load is under a preset level. Please refer to the
paragraph 4.9.5. When the “Green Mode” is disabled, the symbol is
always displayed.
4
Normal
mode
1) The sine wave symbol will display steadily without battery symbol
when the Inverter is in the normal mode.
Battery
mode
2) The sine wave symbol and battery symbol will blink when the Inverter
is in on-battery (inverter) mode.
Test mode
3) The sine wave symbol will display steadily with blinking battery
symbol when the Inverter is in the test mode.
5
Buck mode
The AVR (Auto Voltage Regulator) is reducing the output voltage of the
Inverter (when the input voltage is too high), and the sine wave symbol,
as mentioned in item 4, is also displayed steadily to indicate that the
Inverter is in the normal mode.
6
Boost mode
The AVR is increasing the output voltage of the Inverter (when the input
voltage is too low), and the sine wave symbol, as mentioned in item 4, is
displayed to indicate that the Inverter is in the normal mode.
7
Timer is
enabled
This symbol will show up in the following situations:
1) A Turn-ON / Turn-OFF schedule has been set using the monitoring
software. Refer to paragraph 5.5 and the “Readme” file or “Help”
function of the monitoring software.
2) The Green Mode is enabled and the load is under a preset level. The
Inverter will turn OFF automatically in 60 seconds. Refer to the
paragraph 4.9.5 of this User’s Manual.
8
HIGH
Thermal
alarm
The temperature inside the transformer is over 90˚C. If the user does
not reduce the load, the temperature will continue to rise and the
inverter will shut down automatically after reaching 95˚C.
9
Fan is at
“High speed”
The symbol will display whenever the cooling fan is running at high
speed, and will disappear when it is off (or running at low speed).
10
Silence mode
The audible alarm has been silenced. To reset the alarm while in on-
battery mode, push the control button (not available when the battery
is low or if Inverter abnormal condition is detected).
11
Inverter fault
The Inverter has failed and must be repaired. Contact a qualified service
person.
12
Battery
normal
1) In normal operation, this symbol indicates a charged battery.
Battery low
2) When the battery charge level is low, the word “LOW” will be added
to the symbol.
13
Battery re-
placement
required
The battery has failed and must be replaced. The battery is checked
each time the Test Function is executed.
14
Battery
charge level
1) The higher the battery voltage, the more bars will illuminate.
2) When the Inverter is charging the battery, the battery symbol and the
level indicator blink together.
LOW

www.opti-solar.com
15
No.
Mode
Value
Description
15
AC out
V
AC output voltage
AC in
V
AC input voltage
AC out
Hz
AC output frequency
BATT.
V
DC battery voltage
TEMP.
˚C
Inverter internal temperature
TIMER
Mins to OFF
The Inverter will turn OFF when the displayed value reaches zero. For
example, if the timer shows 0.5 Min to OFF, the Inverter will shut down in
30 seconds.
TIMER
Hrs to ON
The Inverter will turn ON when the displayed value reaches zero. For
example, if the timer shows 48 Hr to ON, the Inverter will turn ON in 2
days.
BATT.
Mins to OFF
The estimated remaining run time in on-battery mode. The accuracy of
the value is influenced by the load type, ambient temperature and
battery condition (old or new).
Selection Button for mode and value
All the operation data is displayed on the LCD screen. By selecting the required mode (upward or
downward), the related value is displayed.
5.3 Audible alarms
During a utility failure or in case of an Inverter failure, the Inverter produces a sound alarm.
When in on-battery mode, the Utility Failure alarm can be silenced by pushing the Silence
button. However, the Battery Low warning cannot be muted.
Basic Indication Table:
STATUS
ALARM
REMARK (LED)
Idle mode
Utility Good
No Beep
Green (flash)
Utility Outage
No Beep
Amber (flash)
Timer ON,
(refer to Item 5.5)
No Beep
Red (flash)
Normal /
On-battery
mode
Normal
(Utility good)
No Beep
Green
On-Batt. (No load)
On-Batt. (Loaded)
One beep every 4 seconds (alarm can be silenced)
Amber (flash)
2 beeps every 8 seconds (during 1st minute of blackout)
Battery Low
4 beeps per second (alarm cannot be silenced)
Amber (flash)
Abnormal
Condition
Overload
Continuous alarm (alarm cannot be silenced)
Red
Inverter fault
Every other 2 seconds, 3 beeps in 2 seconds (alarm
cannot be silenced)
Red (flash)
Thermal alarm
Every other 2 seconds, 3 beeps in 2 seconds (alarm
cannot be silenced)
Red (flash)
5.4 Auto Self-test Function
In normal mode of Inverter, connect some load and push the Self-Test button on the front
panel to perform the self-test. The Inverter will simulate a power outage and transfer to
battery mode. If Battery Low warning sounds during the test, the battery is weak and
requires an extended charging.

www.opti-solar.com
16
5.5 Remote Control
The Inverter can be set for daily shutdown/wake up. This command must be set through
the RS-232 interface. When this function is set, the timer inside the Inverter will start, and
the load will be turned OFF according to the shutdown / wake-up schedule. During the
period between a Turn-OFF and a next Turn-ON, the status LED would blink red every 2
seconds. If your Inverter has an LCD display, the time duration to the next Turn-ON will be
shown on the LCD screen measured in hours (Refer to item 15 of the LCD description).
5.6 Reset the Inverter
If any abnormal condition occurs, and the actions described in the paragraphs 4.1~4.7
cannot be executed, please unplug the AC input power cord and push the ON/OFF button
for at least 15 seconds. This will reset the Inverter.
5.7 DIP Switch Settings
Two options: one is for setting the charger parameters, and the
other is for setting the system’s nominal voltage and frequency,
which can also be adjusted using the UPS Wizard or LCD display.
DIP 1
DIP 2
Charging current
NOTE of Charging current control:
The setting of DIP 1 & 2 is valid only when the DIP3 = Down,
which also means that the charger (built in the main PCB) is ON
so that the charging current is adjustable, 25%~100%. While if
the DIP3 = Up, it means that the built-in charger is OFF.
Up
Up
35%
Down
Up
55%
Up
Down
75%
Down
Down
100%
DIP 3 = Down, built-in charger is turned ON; DIP 3 = Up, built-in charger is turned OFF.
DIP 4 is for the Green Mode setting: UP = Enabled; Down = Disabled
The setting becomes active only after the inverter is restarted.

www.opti-solar.com
17
6COMMUNICATION INTERFACE
The Inverter provides two computer interfaces: RS -232 and USB (optional). The RS-232
interface also has the dry contact function (DB-9, optional). The models with USB interface
are utilizing the same control port for both USB & RS -232 ports, so only one interface can
be used at a time.
6.1. The definition and setup for RS-232 is shown as follows:
Baud Rate : 2400 bps
Data Length : 8 bits
Stop Bit : 1 bit
Parity : None
5 4 3 2 1
9 8 7 6
Pin #6 : RS-232 data Tx out.
Pin #7 : Common of Pin #6 and Pin #9
Pin #9 : RS-232 data Rx In
6.2. The definition and setup for DB9 (optional) is shown as follows:
Pin #2 : AC Power Failure
Pin #4 : Common GND of Pin #2 & Pin #5
Pin #5 : Inverter Battery Low
Pin #6 : Turn OFF Inverter
Pin #7 : GND of Pin6
The interface with computer is shown above for your reference. Use Pin #4 as the common
of Pin #2 and Pin #5, Pin #2 and Pin #4 will become close loop from open when the utility
fails, Pin #5 and Pin #4 will become close loop from open when the battery level is low.
The Inverter will shut down itself after receiving the high level from RS-232, sustainable for
3 seconds, which is applied between Pin #6 and Pin #7.

www.opti-solar.com
18
7TROUBLESHOOTING
Problem
Possible Cause
Action to Take
Inverter shows no reaction
when AC input is connected
1. Line cord plug is loose
2. Fuse on rear panel is blown
(located Inside the drawer of
the inlet)
3. Dead wall socket
1. Check the line cord plug
2. Replace the fuse
3. Check the wall socket with a
desk lamp.
Power output is normal, Inverter
emits continuous beep, status
LED shows RED, or LCD shows
“overload”.
Inverter is overloaded
Turn OFF the Inverter and
unplug the excessive load from
the Inverter. Turn the Inverter
back ON.
No power on outlets, Inverter
emits continuous beep, status
LED show RED or LCD shows
“overload”.
Inverter has shut down due to
severe overload.
Unplug excessive load from
Inverter, press the Silence
button to reset the buzzer, and
turn ON the Inverter again.
Inverter does not provide
expected on-battery run time.
1. Excessive load is connected
to Inverter’s outlets.
2. Battery is weak and cannot
provide enough capacity.
Do not operate the Inverter,
leave the Inverter plugged in for
10 hours. Then test it again. If
the Inverter still cannot provide
the expected runtime, the
battery should be replaced.
Button on the front panel does
not work.
1. The CPU inside the Inverter is
not running correctly.
2. The button has been
damaged.
1. Unplug the AC input power
cord and push the ON/OFF
button for 15 seconds to reset
the Inverter.
2. Unplug all the load and the
AC input power cord from the
Inverter to let it turn OFF
automatically, and call for
service support.
Pushing the Self Test button to
test the Inverter running in AC
mode, makes the Inverter to
emit urgent beeps and the LCD
display shows “Battery
replacement”.
Battery is weak and should be
replaced.
Replace the batteries.
Inverter cannot be turned ON.
1. Battery polarity is wrong.
2. Inverter is faulty.
1. Check the battery
connection.
2. Call for service support.

www.opti-solar.com
19
8SPECIFICATIONS: SP4000-AVR
Input
Nominal Voltage
230V
Input Frequency
47Hz –65Hz, 50/60Hz autosensing
Efficiency (Normal mode)
97%
Noise Filtering
Full time EMI/RFI filtering
Overcurrent Protection
Re-settable overcurrent circuit breaker protector
Voltage Range
140V –310V
AVR Range (2 Buck, 2 Boost)
Enhanced Buck: +28% of selected nominal voltage
Buck mode: +10% of selected nominal voltage
Boost mode: -10% of selected nominal voltage
Enhanced Boost: -25% of selected nominal voltage
Surge Protection
440 Joules
Output
Power Level
3000W
Output Voltage
230V
Voltage Waveform
Pure sine wave
Crest Factor
3:1
Output Frequency (sync to mains)
Auto Select for 50/60Hz
47Hz –55Hz for 50Hz nominal
56Hz –65Hz for 60Hz nominal
Voltage Regulation (nominal)
±10% nominal voltage
Voltage Regulation (on-battery)
±3% of selected output voltage
(adjustable with the remote set-up software)
Transfer Time
Blackout: 3ms typical
Over- and under-voltages: 1ms typical
Battery mode to Normal mode: 1ms typical
Overcurrent Protection
Overload alarm level 100% –120%
Overload shutdown level 120% –190%
(Adjustable by using the remote set-up software)
Battery
Battery Type
Lead-Acid 50Ah –500Ah (Recommended)
Voltage
48Vdc
Charging Method
Smart pulse charging with two charging modes:
Quick charging when battery is not fully charged;
Trickle charging after battery is 90% charged.
Maximum Charging Current
30A
Average Charging Voltage
for each battery
Quick charging mode: 14V maximum
Trickle charging mode: 13.5V
(adjustable with the remote set-up software)
Protection
Overcurrent protection & charging overvoltage protection (SCR control)
Thermal protection (CPU control)
When the temperature inside the unit is over 45°C, the charger stops
charging for 2 minutes followed by 2 minutes charging. The cycle will
repeat until the temperature is lower than 44°C.
Monitoring
Smart monitoring & warning for failed battery or open-circuit battery.
Battery auto-detection each time during power ON or every 6 days.

www.opti-solar.com
20
Solar Charger (optional)
Rating Voltage
48V
DC Input Range
48 –84Vdc
Charging Method
Constant voltage with current limited by PWM control
Charging Voltage
54Vdc
Power Rating
1000W (54Vdc @ 18.5A)
Protection
DC input polarity protection
DC input short circuit protection (when battery is connected)
DC output overcurrent protection
Communication and Management
Standard Interface Port
UPSilon2000 compatible; optional for RS232 and/or USB.
Optional Interface Port
RJ45 (Surge protection), DB9, SNMP (external type)
Control Panel
LCD
Audible Alarms
Alarm on battery: Low battery & Battery over voltage
Alarm on abnormal operation: Overload, Short-circuit, & Overheat
Green Mode Function
1% to 14% of full load
(adjustable by using the remote set-up software)
The default setting is OFF.
Cooling Fan Control
Auto on/off, controlled by temperature & operation mode
Environmental
Operating Temperature
Up to 1500 meters: 0°C to 40°C (32°F to 104°F)
Transit/Storage Temperature
-15°C to 55°C (5°F to 131°F)
Relative Humidity
5 –95% (non condensing)
Operating Altitude
0 –3000 meters
Physical
Dimensions (unit/packing) D×H×W
22×44×27cm / 36×61×41cm
Weight (Net/Gross)
38kg / 41kg