East EA900Pro Series User manual

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Table of Contents
1Safety Information ........................................................................... 2
1.1 UPS SAFETY INFORMATION...........................................................2
1.2 BATTERY SAFETY INFORMATION ....................................................2
2Product Overview ............................................................................4
2.1 SPECIFICATIONS...........................................................................4
2.2 FRONT PANEL FEATURES ..............................................................6
2.3 REAR PANEL FEATURES ................................................................6
3Installation........................................................................................ 7
3.1 UNPACKING INSPECTION ...............................................................7
3.2 INSTALLATION INFORMATION ......................................................... 7
3.3 INSTALLATION AND OUTPUT CONNECTION ......................................8
3.4 EXTERNAL BATTERIES CONNECTION (LONG BACKUP MODEL) .......... 8
4Network Functions.........................................................................10
4.1 COMMUNICATION PORT...............................................................10
4.2 EPO PORT（OPTIONAL）...........................................................10
4.3 INTELLIGENT CARD (OPTIONAL)....................................................11
5Operation........................................................................................12
5.1 BUTTON OPERATION ...................................................................12
5.2 DISPLAY INTERFACE....................................................................13
5.3 UPS ON/OFF OPERATION ...........................................................14
5.4 UPS SETTINGS...........................................................................15
5.5 PARAMETERS INQUIRING OPERATION...........................................17
5.6 OPERATION MODE.......................................................................18
6Fault Messages and Alarm ...........................................................20
7Troubleshooting.............................................................................25

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1 Safety Information
1.1 UPS safety information
Read all safety information and operating instructions carefully before attempting to
install, service or maintain the UPS. Save this manual properly for reuse.
This UPS is intended for indoor use only.
Do not operate this UPS in direct sunlight, in contact with fluids, or where there is
excessive dust or humidity.
Be sure the air vents on the UPS are not blocked. Allow adequate space against
the wall for proper ventilation.
Do not open the UPS case as you will, there is a high risk of electric shocks inside.
All connection/wiring/servicing must be performed by a qualified electrician.
Do not connect to the equipment like hair dryer or electric heater.
Do not use liquid extinguisher if there is a fire, a dry powder extinguisher is
recommended.
CAUTION
UPS has high voltage inside, do not repair it by yourself. If any questions, please
contact local service center or dealer.
1.2 Battery safety information
Environmental factors impact battery life. Elevated ambient temperatures, poor
quality utility power, and frequent short duration discharges will shorten battery life.
Replacing battery periodically can help to keep UPS in normal state and assure
backup time required.
Battery installing or replacing should be performed by a qualified electrician. If you
want to replace the battery cable, please purchase it from our local service center
or distributors to avoid fever and lighter which can cause fire by inadequate power
capacity.
Batteries may cause electric shocks and have a high short circuit current, follow
below requirements before installing or replacing the batteries.
A.Remove wristwatches, rings, jewelry and other conductive materials.
B.Only use tools with insulated grips and handles
C.Wear insulated shoes and gloves

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D.Do not put the metal tools or parts on the batteries
E. Before disconnecting the terminals from the batteries, cut off all the loads to the
battery first.
Do not dispose of the batteries with fire. The batteries may explode.
Do not open or mutilate batteries. Released electrolyte inside is harmful to the skin
and eyes, and maybe toxic.
Do not connect the positive pole and negative pole directly, otherwise it will cause
electric shocks or will be on fire.
The battery circuit is not isolated from the input voltage, high voltage may occur
between the battery terminals and ground, check if there is no voltage there before
touching.
Symbols
Symbol Significations Symbol Significations
Caution Protective earth
Danger! High Voltage! Disable/mute audible
alarm
Turn on Overload
Turn off Battery inspection
Standby or Shutdown Repeat
AC Display screen repeat key
DC Battery

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2 Product Overview
2.1 Specifications
Model 1kVAS 1kVAH 2kVAS 2kVAH 3kVAS 3kVAH
Rated Capacity 1 kVA / 900 W 2 kVA / 1800 W 3 kVA / 2700 W
Input
Rated input voltage 208 Vac / 220 Vac / 230 Vac / 240 Vac
Rated input frequency 50 Hz / 60 Hz (auto-sense)
Input voltage range 110 ~ 176 Vac (power derating linearly between 50% and 100% load);
176 ~ 280 Vac (no derating); 280 ~ 300Vac (power derating 50%)
Input frequency range 40 ~ 70 Hz
PFC ≥0.99
THDI ≤6%
Bypass voltage range -25% ~ + 15% (settable)
Output
Output voltage 208 Vac / 220 Vac / 230 Vac / 240 Vac (settable)
Voltage accuracy ± 1%
Output PF 0.9
Inverter overload
capability
105% ~ 125% load: transfer to bypass in 1 min;
125% ~ 150% load: transfer to bypass in 30 s;
> 150% load: transfer to bypass in 300 ms;
Load crest 3:1
From mains mode to
BAT mode
0 ms (transfer time)
From mains mode to
bypass
≤4 ms
Efficiency
Line mode 90% 91% 92%
BAT mode 85% 86% 87%
ECO mode 95% 96% 97%
Output
frequency
Line mode Same as input frequency
BAT mode (50 / 60 ± 0.1) Hz
Total voltage harmonic
distortion ≤2% (linear load); ≤5% (non-linear load)

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Batteries
Battery type Sealed lead acid maintenance free battery
DC voltage 24 V 36 V 36 V 48 V 72 V 72 V 72 V 96 V 96 V
Inbuilt battery 9 AH
12 V
7 AH
12 V
/ 9 AH
12 V
7 AH
12 V
/ 9 AH
12 V
7 AH
12 V
/
Quantity
2
3
3
4
6
6
6
8
8
Charger output voltage
27.1
± 0.4
40.7
± 0.6
40.7
± 0.6
54.2
± 0.8
81.3
± 1.2
81.3
± 1.2
81.3
± 1.2
108.4
± 1.6
108.4
± 1.6
Recharging time Recover 90% capacity in 3 hours for standard models
Charging current
(Max.)
Standard model: 1 A
Long time model: 6A/ 3 A
System Control and Communications
Protections Over-temp protection; Fan testing protection;
Overload protection; Output short
circuit protection; Battery discharge protection
Communication port Standard: RS232; Options: USB, SNMP card, dry contacts
Display LCD
Environmental
Operating humidity 0 ~ 90 % RH @ 0 ~ 40°C (non-condensing)
Storage temperature -25°C ~ 55°C(exclude batteries)
Operating altitude ≤1000m, above 1000m, derate 1% for each rising 100m
Protection class IP 20
Noise level ≤50 dBA (at 1m)
Others
Dimensions (mm)
W ×D×H
144*336
*214
144*414
*214
144*336
*214
191*418
*335
191*418
*335
191*418
*335
191*418
*335
191*464
*335
191*418
*335
Weight (kg) 9.5 13 6 18 25.8 10.5 27.2 32 11
* Derate capacity to 70% in CUCF mode and to 90% when the output voltage is adjusted to 208Vac.
Note
：
Model Type Model Type
1kVAS 1kVA Standard model 1kVAH 1kVA Long backup model
2kVAS 2kVA Standard model 2kVAH 2kVA Long backup model
3kVAS 3kVA Standard model 3kVAH 3kVA Long backup model

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2.2 Front panel features
2.3 Rear panel features
a. 1kVAS & 1kVAH rear panel b. 2kVAS &2kVAH & 3kVAS & 3kVAH rear panel
①AC input socket ⑥RS232 port
②Overcurrent protector ⑦Intelligent slot
③Fan ⑧Surge protection for network / fax / modem
④USB port ⑨Output sockets
⑤EPO (Emergency Power Off) port ⑩Battery connector
Note:
The figure is for reference only. Due to the technology upgrading and development,
the real unit might be different from the figure.

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3 Installation
3.1 Unpacking inspection
Open the UPS package and inspect the contents upon receipt. The accessories
attached to the UPS contain a power cord, a user manual, communication cable,
CD-ROM. The long backup model also includes the cable for connection to battery
bank.
Check if the unit is damaged during transport. Do not power on and notify the
carrier and dealer if find damaged or parts missing.
Verify this unit is the model you want to buy. Check the model name showed both
on the front panel and rear panel.
Note:
Keep the packaging box and packaging materials for future transport use. The
equipment is heavy. Always handle it with care.
3.2 Installation information
The UPS installation environment must be in good ventilation, away from water,
flammable gases and corrosive entities.
Do not lie down the UPS against the wall so that front and side panel air intake hole,
rear panel air outtake hole will be unobstructed.
The ambient temperature around the UPS should be within 0 ℃
~ 4
（non-condensing）.
If dismantling the machine at low temperatures, there may be condensation
droplets, users can not install or operate it before UPS completely got dry both
inside and outside, otherwise there will be danger of electric shocks.
Place the UPS near the mains source so that can cut off utility power without any
delay in case of emergency.
Make sure the load connected to the UPS is off when users connect it to UPS, and
then turn on the load one by one later.
Connect the UPS with the power outlet which is over-current protected. Do not
connect the UPS with power outlets whose rated current is less than the maximum
input current of this UPS.
All power outlets should be configured with earthing device for safety.
UPS could be electrified or powered no matter the input power cord is tied or not,
even when the UPS is off. The only way to cut off the output is switching off the
UPS and disconnecting the mains power supply.

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For all standard model UPS, it is advised to charge the batteries over 8 hours
before using. Once the AC mains power energizes the UPS, it will automatically
charge the batteries. Without prior charging, UPS output remains as usual but with
shorter back-up time than normal.
When connected to motor, display equipment, laser printer etc, UPS power
selection should be based on the startup power of the load which is usually twice
as rated power.
Wiring by a qualified electrician is required. Ensure input cables and output cables
are connected correctly and firmly.
If install a leakage current protective switch, please install it on output cable.
For 1-3K series long backup model units, you may need to prepare wires for
terminals based on the following table.
Model Wiring spec (AWG)
Input Output Battery Non-isolated
Neutral
Ground
1kVAS_DC24V 1mm² 1mm² 6mm² 1mm² 1mm²
1kVAS_DC36V 1mm² 1mm² 4mm² 1mm² 1mm²
1kVAH_DC36V 1mm² 1mm² 4mm² 1mm² 1mm²
2kVAS_DC48V 1.5mm² 1.5mm² 6mm² 1.5mm² 1.5mm²
2kVAS_DC72V 1.5mm² 1.5mm² 4mm² 1.5mm² 1.5mm²
2kVAH_DC72V 1.5mm² 1.5mm² 4mm² 1.5mm² 1.5mm²
3kVAS_DC72V 2.5mm² 2.5mm² 6mm² 2.5mm² 1.5mm²
3kVAS_DC96V 2.5mm² 2.5mm² 4mm² 2.5mm² 1.5mm²
3kVAH_DC96V 2.5mm² 2.5mm² 4mm² 2.5mm² 1.5mm²
3.3 Installation and output connection
Normally, output connection of 1~3kVA series is configured with power outlets or
terminal blocks, users can plug the load cable into the UPS power outlets to energize
the load. Make sure the mains cable and breakers in the building are enough for the
rated capacity of UPS to avoid the hazards of electric shock or fire.
3.4 External batteries connection (long backup model)
For different UPS model, users are instructed to configure different battery voltage
as below table. More or less units are forbidden, or else something abnormal or
faulty will appear.

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Model Battery Quantity (unit) Battery Voltage (volt)
1kVAH 3 36
2kVAH 6 72
3kVAH 8 96
One end of battery cable is for UPS terminals while the other end with triple cables
is for battery terminals. Correct installation procedure is highly vital or else probable
electric shock will arise. Users are strictly required to follow the below procedure.
Connect batteries correctly and make sure the total battery voltage is available for
UPS.
Correctly connect the long battery cable to battery terminals first, red wire is to
positive plate while black is to negative. If users connect the UPS first, electric
shock or other danger may not be avoided.
Before connecting loads, users should supply mains power and energize the UPS.
Connect long battery cable to UPS terminals with correct poles link (red is for ‘+’,
black is for ‘-‘), UPS will start charging automatically.
Connect the battery pack to the battery connector.

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4 Network Functions
4.1 Communication port
Users could monitor the UPS system through the communication port such as
standard RS232 port and USB port with computer. Connecting this UPS with
computer by communication cable could achieve UPS management easily.
> RS232 port
：
Pins 1 2 3 4 5 6 7 8 9
Indication empty send receive empty ground empty empty empty empty
> USB port
：
Pins 1 2 3 4
Indication +5V date+ date- GND
4.2 EPO port
（
optional
）
Normally, pin1 and pin2 are connected so that the machine can be working normally.
When some emergencies happen, and when users have to cut off the output, just
need to disconnect the connection between pin1 and pin2, or just pulling it out.
Note:
RS232 interface is set as bel
ow:

Bit rate: 2400bps

Byte: 8bit

Completion code: 1bit

Bit pattern: None
EPO is
the short for Emergency Power Off. EPO port is
on
the rear panel of the UPS. It’s green. Users can cut
off the output of UPS immediately by operating EPO port
in case of
emergency.

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4.3 Intelligent card (optional)
There is an intelligent slot on the rear panel of the UPS, it’s for SNMP card and dry
contacts. Users can insert any type intelligent card from those three into it to monitor
and manage the UPS. And users don’t have to turn off the UPS when install the
intelligent card. Follow below process:
First of all, remove the intelligent slot cover;
Then insert the intelligent card (SNMP card and dry contacts);
Finally, screw the intelligent card back.
> SNMP card (optional)
SNMP card on UPS is compatible with the most software, hardware and network
operating system, it is a network management of UPS, with this function, UPS can
login on internet , which can supply information of UPS status and input power, and
even possible to control UPS via net management system.
SNMP interface is set as below:
Bit rate: 2400bps
> Dry contacts card (optional)
Insert the dry contacts card into the intelligent slot. It’s another type function of
intelligent monitoring.
Position Definition
PIN1
ON
：
UPS is malfunctioning
PIN2 ON：Alarm（system failure）
PIN3
Ground
PIN4 Remote shutdown
PIN5
Common
PIN6 ON：Bypass mode
PIN7
ON
：
Battery low
PIN8 ON：Inverter mode；
OFF：Bypass mode
PIN9
ON
：
No AC power in

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5 Operation
5.1 Button operation
Button Function
“ON” key
(+ )
Press the two keys for more than half a second to turn on the
UPS.
“OFF” key
( + )
Press the two keys for more than half a second to turn off the
UPS.
TEST/MUTE key
(+ )
Press the two keys for more than 1 second in Line mode or
ECO mode or CUCF mode: UPS runs the self-test function.
Press the two keys for more than 1 second in battery mode:
UPS runs the mute function.
INQUIRING key
(, )
Not in setting mode:
Press or for more than half a second (less than 2
seconds): display the items orderly.
Press for more than 2 seconds: Circularly and orderly
display the items every 2 seconds, when press the key for
some time again, it will turn to output status.
In setting mode:
Press or for more than half a second (less than 2
seconds): Select the setting option.
FUNCTION SETTINGS key
()
Not in setting mode:
Press the key for more than 2 seconds: Function settings
interface.
In setting mode:
Press the key for more than half a second (less than 2
seconds): go to the function setting options.
Press the key for more than 2 seconds: exit from this
function settings interface.

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5.2 Display interface
Display Function
Icon display
Load icon: The approximate load capacity percentage (0-25%, 26-50%,
51-75% and 76-100%) is indicated by the number of load bar sections
illuminated. When UPS is overloaded, the load icon will flash.
Mute icon: Indicates the audible alarm is disabled / mute.
Press the mute key in the battery mode, the mute icon flash.
Fan icon: Indicates fan working status. When the fan normally runs, the icon
displays rotation; if the fan is not connected or faulty, the icon will flash.
Fault icon: Indicates UPS is in fault mode.
Battery status icon: Indicates the battery capacity of 0-25%, 26-50%,
51-75%, and 76-100%. W
hen the capacity of battery get low or battery
disconnected, the battery status icon will flash.
UPS status information
In non-setting mode, it displays UPS output information when UPS
normally runs; Fault code will be told in fault mode.
In setting mode, users could adjust different output voltage, activate ECO
mode, activate CUCF mode, select an ID number and so on by operating
function setting keys and inquiring key.
Operation mode
Indicates the power capacity of UPS within 20 seconds after starting up.
Indicates UPS operation mode in 20 seconds, such as STDBY (standby
mode), BYPASS (Bypass mode), LINE (AC mode), BAT (Battery mode),
BATT (Battery Self Test mode), ECO (Econ
omic mode), SHUTDN
(Shutdown
mode), CUCF (Constant Voltage and Constant Frequency
mode).
Icon display
UPS status information
Operation mode

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LED indicator light functions
They are respectively inverter light and fault light from left to right.
The inverter light (green LED indicator light) illuminates
continuously: it
indicates that UPS is in mains modeor ECO mode or power supply status in
battery mode.
The fault light (red LED indicator light) illuminates continuously: it indicates
that UPS is in fault status.
Note: For LED indication in different modes, please refer to LED/display
panel and alarm list.
5.3 UPS On/Off operation
Operation Description
Turn on the UPS
> Turn on the UPS with mains power
With mains power connected, UPS works in bypass mode, its output is same
as the input voltage within the input range. If there is no need of output
voltage when mains power connected, you can set up bPS to ‘OFF’. Default
bPS is ON, it means there is bypass output when power on.
Press the ON key for more than half a second to start the UPS, then it will
start the inverter.
Once started, the UPS will perform a self-test function. When the self-test
finishes, it will turn to online mode.
> Turn on the UPS by battery without mains power
When main power is disconnected, press the ON key for more than half a
second to start UPS.
The operation of UPS startup process is almost same as above process with
mains power. After the self-test finishes, UPS will work in battery mode.
Turn off the UPS
> Turn off the UPS in Line mode
Press the OFF key for more than half a second to turn off the UPS.

After UPS shutdown, there is no output. If output is needed, you can set BPS
‘ON’ on LCD setting menu.
> Turn off the UPS in battery mode without mains power
Press the OFF key for more than half a second to turn off the UPS.
When UPS shut down, it will do self-test first, until there is no display on the
panel.
UPS
self-test/mute test
operation
When UPS is in LINE Mode, press the self-test/mute key for more than 1
second. UPS gets to self-test mode and tests its status. It will exit
automatically after finishing test.
When UPS is in BAT Mode, press the self-test/mute key for more than 1
second, the buzzer stops beeping. If you press the self-test/mute key for one
more second, it will restart to beep again.

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UPS Setting
Enter Setup interface. Press and hold the function setting key for more
than 2 seconds, then come to Setup interface, press and hold the inquiring
key ( ,) for more than half a second (less than 2 seconds), select
the function setting, choose the setup interface, at the moment, the letters
flash.
Enter the setup interface. Press and hold the function setting key for
more than half a second (less than 2 seconds), then come to the setup
interface, at this time, the letters doesn’t flash any more, the numerical value
flash. Press and hold the inquiring key ( ,) for more than half a
second (less than 2 seconds), select the numerical value in accordance with
the function.
Confirm the setup interface. After selecting numerical value, press and hold
the function setting for more than half a second (less than 2 seconds).
Now, the setting function is completed and the numerical value illuminates
without flashing.
Exit from the setup interface. Press and hold function setting key for
more than half a second (less than 2 seconds), exit from the setup interface
and return to the main interface.
Note:
UPS could not be set until it is connected to the battery and it is turned off and
switched to Stdby mode (standby mode).
Disconnect mains power after setting.
The LCD display screen will automatically extinguish in about 1 min, and the
setting will be configured normally.
5.4 UPS Settings
Output voltage setting
LCD display Settings
For 208/220/230/240 VAC models, you may choose the
following output voltage:
208: output voltage is 208Vac
220: output voltage is 220Vac
230 (default):output voltage is 230Vac
240: output voltage is 240Vac

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Low voltage of battery setting
LCD display Settings
The battery voltage selecting interface. You may choose the
following output voltage:
9.8: Low voltage of battery is 9.8Vdc
9.9: Low voltage of battery is 9.9Vdc
10: Low voltage of battery is 10Vdc
10.2: Low voltage of battery is 10.2Vdc
10.5: Low voltage of battery is 10.5Vdc
dEF (default):EOD voltage automatically varies with loads,
including 21.5 hours discharge protection
Bypass mode setting
LCD display Settings
Enable or disable Bypass function. You may choose the
following two options:
ON: Bypass enable
OFF (default):Bypass disable
AUO setting
LCD display Setting
AUO setting only can be set in Stdby mode or Bypass mode.
You may choose the following two options:
ON: UPS will start up automatically and works in Line mode
when connect mains.
OFF
(Default): UPS won’t start up automatically when
connect mains except EOD, it will work in standby or bypass
mode.

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5.5 Parameters inquiring operation
Press the inquiring key or for more than half a second (less than 2 seconds)
to inquire about items. The inquired items include Input, Battery, Output, Load and
Temperature. The displayed items on LCD screen are shown as following:
LCD display Description
Output
：
Display the output voltage and output frequency of
the UPS. As the following graphic shows, the output voltage
is 220V, the output frequency is 50Hz.
Load: Display the numerical value of the active power
(WATT) and apparent power (VA) of the load. For example,
as the following graphics shows, the WATT of the load is
800W, VA is 1.0kVA (when disconnect loads, it is a normal
phenomenon to show a small numerical value of WATT and
VA).
Version and Temperature: Indicate firmware version of
UPS and
display the highest temperature of UPS
components; As the following graphics shows, the firmware
version is v1.7, the maximum temperature is 40 ℃.
Input: Display the voltage and frequency of the input. As the
following graphics shows, the input voltage is 220V, input
frequency is 50Hz.
Battery: Display the voltage and capacity of the battery. As
the following g
raphics shows, the battery voltage is 24V, the
capacity of battery is 100% (the capacity of battery is
approximately reckoned according to the battery voltage).

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Warning: Display the warning code.
5.6 Operation mode
Operation mode and LCD display Description
Bypass mode
Turn to bypass mode under the following three conditions:
Connect mains power and the bypass setup is ON.
Turn off the UPS in line mode and the bypass setup is
ON.
Overload in line mode.
Note: When UPS is working in bypass mode, it has no back
up function.
Line mode
Being in line mode are as following: When input mains
corresponding to the working conditions, UPS will work in
line mode, LCD displays ‘Line’.
Stdby mode
UPS is powered off and no output supply power, but still can
charge batteries.

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Battery mode
Being in battery mode are as following: the buzzer beeps
once every 4 seconds.
When the mains power is low or unstable, UPS will turn to
battery mode at once, and LCD displays ‘batt’.
ECO mode
Being in ECO mode are as following: When the input mains
meet the input range of the ECO mode and the ECO function
is on, the UPS works in ECO mode. If input mains exceed the
range of ECO several times within one minute but stays in
inverter input range, UPS will work in inverting mode
automatically. LCD displays ‘ECO’.
CUCF mode
Frequency conversion mode is mainly to provide a stable
voltage and frequency (mainly in terms of frequency).After
starting this mode, its output will not be affected by utility to
meet input needs of some precision equipment and make
users’ load more stable and secure.After opening CUCF
mode setup, LCD displays ‘CUCF’. Under the CUCF mode,
when the output frequency is set to 50HZ, the load capacity
decreased to 80% of the original volume; when the output
frequency is set to 60HZ, the load capacity decreased to
70% of the original capacity. The output frequency is fixed
with the setting values, it doesn’t vary with utility change. And
the UPS cannot be set to going bypass under this mode.
Fault mode
When UPS has a failure, the buzzer beeps and the UPS
turns to fault mode. UPS cuts off the output and LCD displays
fault codes. At the moment, users can press the mute key to
make the buzzer stop beeping temporarily to wait for
maintenance. Users can also press the OFF key to shut
down the UPS when confirm that there is no serious fault.