East EA900Pro Series, EA902P, EA901P, EA903P Operation Manual

Table of Contents

1 Safety Information ........................................................................... 2

1.1 UPS

1.2 B

SAFETY INFORMATION ........................................................... 2

ATTERY SAFETY INFORMATION .................................................... 2

2 Product Overview ............................................................................ 4

2.1 S

2.2 F

2.3 R

PECIFICATIONS ........................................................................... 4

RONT PANEL FEATURES .............................................................. 6

EAR PANEL FEATURES ................................................................ 6

3 Installation ........................................................................................ 7

3.1 U

3.2 I

3.3 I

3.4 E

NPACKING INSPECTION ............................................................... 7

NSTALLATION INFORMATION ......................................................... 7

NSTALLATION AND OUTPUT CONNECTION ...................................... 8

XTERNAL BATTERIES CONNECTION (LONG BACKUP MODEL) .......... 8

4 Network Functions ......................................................................... 10

4.1 C

4.2 EPO

4.3 I

OMMUNICATION PORT ............................................................... 10

PORT（OPTIONAL） ........................................................... 10

NTELLIGENT CARD (OPTIONAL).................................................... 11

5 Operation ........................................................................................ 12

5.1 B

5.2 D

5.3 UPS

5.4 UPS

5.5 P

5.6 O

UTTON OPERATION ................................................................... 12

ISPLAY INTERFACE .................................................................... 13

ON/OFF OPERATION ........................................................... 14

SETTINGS ........................................................................... 15

ARAMETERS INQUIRING OPERATION ........................................... 17

PERATION MODE....................................................................... 18

6 Fault Messages and Alarm ........................................................... 20

7 Troubleshooting ............................................................................. 25

1

1 Safety Information

1.1 UPS safety information

 Read all safety information an d operat ing instru ction s caref ully before atte mpting t o

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/s ervicing 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 instal ling 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 ci rcuit 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

2

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 batt er ie s 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 wil l 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

Danger! High Voltage!

Turn on

Turn off

Standby or Shut down

AC

DC

Protective earth

Disable/mute audible

alarm

Overload

Battery inspection

Repeat

Display screen repeat key

Battery

3

frequency

Total voltage harmonic

2 Product Overview

2.1 Specifications

Model 1kVAS 1kVAH 2kVAS 2kVAH

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

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

Load crest 3:1
From mains mode to
BAT mode
From mains mode to
bypass

Line mode

Efficiency

Output

BAT mode 85% 86% 87%
ECO mode 95% 96% 97%
Line mode Same as input frequency
BAT mode (50 / 60 ± 0.1) Hz

110 ~ 176 Va c (power derating linearly between 50% and 100% load);

176 ~ 280 Vac (no derating); 280 ~ 300Vac (power derating 50%)

105% ~ 125% load: transfer to bypass in 1 min;

125% ~ 150% load: transf er to bypass in 30 s;

> 150% load: transfer to bypass in 300 ms ;

0 ms (trans fe r time)

≤ 4 ms

90% 91% 92%

3kVAS 3kVAH

distortion

≤ 2% (linear load); ≤ 5% (non-linear load )

4

12 V

12 V

12 V

12 V

12 V

12 V

2 3 3 4 6 6 6 8 8

± 0.4

± 0.6

± 0.6

± 0.8

± 1.2

± 1.2

± 1.2

± 1.6

± 1.6

Overload protection; Output sh ort

Batteries

Battery type Sealed lead acid maintenance free battery
DC voltage

Inbuilt battery

Quantity

Charger output voltage

Recharging time Recover 90% capacit y i n 3 hours for standard models

24 V 36 V 36 V 48 V 72 V 72 V 72 V 96 V 96 V
9 AH

27.1

7 AH

40.7

/

40.7

9 AH

54.2

7 AH

81.3

/

81.3

9 AH

81.3

7 AH

108.4

/

108.4

Charging current
(Max.)

Standard model: 1 A

Long time model: 6 A / 3 A

System Control and Communications

Protections

Over-temp protection; Fan testing protection;

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, der ate 1% for each rising 100m
Protection class IP 20
Noise level ≤ 50 dBA (at 1m)

Others

Dimensions (mm)
W ×D×H
Weight (kg)

144*336

144*414

144*336

191*418

191*418

191*418

191*418

191*464

*214

*214

*214

*335

*335

*335

*335

*335

9.5 13 6 18 25.8 10.5 27.2 32 11

191*418

*335

* 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

5

2.2 Front panel features

2.3 Rear panel features

a. 1kVAS & 1kVAH rear panel b. 2kVAS &2kVAH & 3kVAS & 3kVAH rear panel

① AC input socket ⑥ RS232 port
② Overcurrent protector ⑦ Intelligent slot
③ Fan ⑧ Surge protection for network / fax / modem
④ USB port ⑨ Output sockets
⑤ EPO (Emergency Power Off) port ⑩ Battery connector

Note:
The figure is for reference only. Due to the technology upgrading and development,
the real unit might be different from the figure.

6

~ 4

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 c able,
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 agai nst the w all so tha t front an d sid e pane l air int ake h ole,

rear panel air outtake hole will be unobs tructed.

 The ambient temperature around the UPS should be within 0 ℃

（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 co rd 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.

7

Neutral

 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.

Wiring sp ec (AWG)

Model

Input Output Battery

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

Non-isolated

Ground

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.

8

Model
1kVAH 3 36
2kVAH 6 72
3kVAH 8 96

Battery Quantity (unit) Battery Voltage (volt)

 One end of battery cable is for UPS terminals while the other end with triple cables

is for battery terminal s. Corre ct inst all ation pr ocedur e is hig hly v ital or el se pr obabl e
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 s hould supply mains power and energize the UPS.
 Connect long battery cable to UPS terminals with correct poles link (re d is for ‘+ ’,

black is for ‘-‘), UPS will start charging automatically.

 Connect the battery pack to the battery connector.

9

：

Note:

RS232 interface is set as bel









EPO is
on
off the output of UPS i mmedi ately by operati ng EPO port
in case of

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

Bit rate: 2400bps
Byte: 8bit
Completion code: 1bit
Bit pattern: None

ow:

> 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 c an 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.

the short for Emergency Power Off. EPO port is

the rear pane l of the UPS. It’s green. Users can cut

emergency.

10

PIN1

ON：UPS is malfunctioning

PIN3

Ground

PIN5

Common

PIN7

ON：Battery low

PIN9

ON：No AC power in

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, rem ove 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

PIN2 ON：Alarm（system failure）

PIN4 Remote shutdown

PIN6 ON：Bypass mode

PIN8

ON：Inverter mode；
OFF：Bypass mode

11

( + )

5 Operation

5.1 Button operation

Button Function
“ON” key

(

+ )

“OFF” key

Press the two keys for more than half a second to turn on the
UPS.

Press the two keys for more than half a second to turn off the
UPS.

TEST/MUTE key
(

+ )

INQUIRING key

, )

(

FUNCTION SETTINGS 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.

Not in setting mode:

 Press or for more than half a second (less than 2

seconds): display the items or derly.

 Press for more than 2 seconds: Circularly and orderly

display the items every 2 s econds, when press t he 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 t he setting option.

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 (les s t han 2

seconds): go to the function setting options.

 Press the key for more than 2 seconds: exit from this

function settings interface.

12

illuminated. When UPS is over loaded, the load icon will flash.

hen the capacity of battery get low or battery

disconnected, the battery status icon will flash.

omic mode), SHUTDN

mode), CUCF (Constant Voltage and Constant Frequency

5.2 Display interface

Display Function

Icon display

Load icon: The approximate load cap acity percentage (0-25%, 26-50%,
51-75% and 76-100%) is indicate d by the number of load bar sec t ions

Mute icon: Indicates the audible alarm is disabled / mute.
Press the mute key in the battery mode, the mute icon flash.

Fan icon: Indica te s fa n working status. When the fan normally runs, the icon
displays rotation; if t he fan is not co nnected or faulty, the icon will flash.

Icon display

UPS status information

Operation mode

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

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 co uld adjust different output vol t age, activ ate ECO

mode, act iv at e CUC F mod e, s el ect an I D numb e r and s o on by o per at i ng
function setting keys and inquiring key.

Operation mode

Indicates the power capacity of UPS within 20 seconds after starting up.
Indicates UPS operation mode i n 20 seconds, such as STDBY (standby
mode), BYPASS (Bypass mode), LINE (AC mode), BAT (Battery mode),
BATT (Battery Self Test mode), ECO (Econ
(Shutdown
mode).

13

LED indicator light functions

continuously: it

The fault light (red LED indicator light) illuminates continuously: it indicates

panel and alarm list.

mains power. After the self-test finishes, UPS will work in battery mode.

After UPS shutdown, there is no output. If output is needed, you can set BPS

panel.

more second, it will restart to beep again.

They are respectively inverter light and fault light from left to right.
The inverter light (green LED indicator light) illuminates
indicates that UPS is in mains mode or ECO mo de or power supply status in
battery mode.

that UPS is in fault status.
Note: For LED indication in differen t m odes, please refer to LED/dis play

5.3 UPS On/Off operation

Operation Description

> Turn on the UPS with mains power

 With mains power conne cted, 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 t here 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.

Turn on the UPS

 Once started, the UPS will perform a self-test fu nction. W hen the self-test

finishes, it wi ll t urn 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 operati on of U PS start up p roc ess is almo st sam e as ab ove pr oces s wit h

> Turn off the UPS in Line mode

 Press the OFF key for more than half a second t o t u rn off the UPS.


‘ON’ on LCD setting menu.

Turn off the UPS

> 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, unti l there i s no disp lay on t he

 When UPS is in LINE Mode, press the self-test/mute key for more than 1

UPS

self-test/mute test

operation

second. UPS gets to self-test mode and tests its status. It will exit
automatically after finishi ng 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

14

UPS Setting

setting will be configured normally.

 Enter Setup interface. Press and hold the function setting key for more

than 2 seconds, then come to Setup interface, press and hold t he inquiring
key (
the function setting, choose the setup interface, at the moment, the letters
flash.

 Enter the setup interf ace. Pres s and hol d the func tion set ting ke y 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 numeri ca l v al ue
flash. Press and hold the inquiring key (
second (les s th an 2 sec ond s), s el ect the nume ric al v al ue in acc ord anc e wit h
the function.

 Confirm the setup interface. After selecting numerical value, press and hold

the function setting
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 t he setup interface
and return to the main i nterface.

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

, ) for mor e t ha n h al f a s ec ond (less th a n 2 s ec on ds ) , s elect

, ) for more than half a

for more than half a second (less than 2 seconds).

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

15

 Low voltage of battery setting

(Default): UPS won’t start up automatically when

LCD display Settings

The battery voltage selecting interface. You may choo se 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 f unction. 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

connect mains except EOD, it will work in standby or bypass
mode.

16

：

as the following graphics shows, the WATT of the load is

display the highest temperature of UPS

following graphics shows, the input voltage is 220V, input

raphics shows, the battery voltage is 24V, the

capacity of battery is 100% (the capacity of battery is

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 show n as follow ing:

LCD display Description

Output

the UPS. As the following graphic shows, the output voltage
is 220V, the output frequenc y is 50Hz.

Load: Display the numerical value of the active power
(WATT) and apparent power (VA) of the load. For example,

800W, VA is 1.0kVA (when disconnect loads, it is a normal
phenomenon to show a small numerical value of WATT and
VA).

Display the output voltage and output frequen cy of

Version and Temperature: Indicate firmware version of
UPS and
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

frequency is 50Hz.

Battery: Disp lay t he vol tage a nd capa cit y of th e batt ery. As
the following g

approximately reckoned according to the battery v o ltage).

17

Being in line mode are as following: When input mains
UPS is powered off and no output supply power, but still can

Warning: Display the warning code.

5.6 Operation mode

Operation mode and LCD display Description

Bypass mode

Line mode

Stdby mode

Turn to bypass mode under the foll owing three conditions:

 Connect mains power and t he bypass setup is ON.
 Turn off the UPS in l ine mode and the bypas s setup is

ON.
 Overload in line mod e.
Note: When UPS is working in bypass mode, it has no bac k
up function.

corresponding to the working conditions, UPS will work in
line mode, LCD displays ‘Line’.

charge batt eries.

18

Battery mode

make the buzzer stop beeping temporarily to wait for

ECO mode

CUCF mode

Being in battery mode are as following: the buzzer beeps
once ever y 4 s econds.
When the mains power is low or unstable, UPS will turn to
battery mode at once, and LCD displays ‘batt’.

Being in E C O m ode are as fol lowing: 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’.

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 t he 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 cut s o ff t he output and LC D displ ays
fault codes. At the moment, users can press the mute key to

maintenance. Users can also press the OFF key to shut
down the UPS when confirm that there is no serious fault.

19

LED flashes

er

1

Inverter mode (mains power)

voltage

Line

always

protection, switch

sec

sec

sec

6 Fault Messages and Alarm

Table 1: Fault code messages

Fault code Fault type Bypass output Note

0、1、2、3、4 Bus high yes

5、6、7、8、9 Bus low yes
10、11、12、13、14 Bus unbalance yes
15、16、17、18、19 Bus soft start fail yes
20、21、22、23、24 Inverter soft start fail yes
25、26、27、28、29 Inverter high yes
30、31、32、33、34 Inverter low yes
35、36、37、38、39 Bus discharge fail yes
40、41、42、43、44 Over heat yes
45、46、47、48、49 OP(inverter) short no
50、51、52、53、54 Overload yes
55、56、57、58、59 Line NTC break yes
60、61、62、63、64 Shutdown fault yes
65、66、67、68、69 AC input fuse open yes unused
70、71、72、73、74 Communication fault yes unused
75、76、77、78、79 Communication fault yes
80、81、82、83、84 Relay fault yes
85、86、87、88、89 AC input SCR fault yes unused
90、91、92、93、94 CAN fault yes

Table 2: Working status messages

S/

Working status LCD displa y messages

N

Mains power

Mains power
high/low voltage

Working mode displays

Working mode displays
bAT

20

Alarm

beep

No beep No flash

One

beep / 4

LCD

flashes

One
flash / 4

Invert

Flash

One
flash /

Fault

/

/

sec

/ 4 sec

sec

of battery

sec

/ sec

sec / 3

Bypass mode

Bypass）

/2 sec / 4

Warning for battery disconnec ted

0, and flash all the time

sec

/ 4 sec

/2 sec

and flash all the time

sec

/ 4 sec

all the time

5

Output overload protection

/ sec

overload

corresponding codes

/ sec

sec

overload

corresponding codes

flash all the time

sec

/ 2 sec

2 sec

depending on current

sec

to battery mode

2 Battery mode

Battery voltage -
normal

Warning for
abnormal voltage

Working mode displays
bAT

Working mode displays
bAT, Bat flash

One

beep / 4

One

beep /

One
flash

One
flash

One
flash /

One
flash /

/

Mains power –
normal（under

Bypass mode

Inverter mode

Power on / Switch
on

Warning for mains
power overload

Protect operation for
mains power mode

Warning for battery
overload

Working mode displays
byPASS

Working mode displays
byPASS, bat display is

Working mode displays
Line, bat display is 0,

LCD illuminates when
power on, and display
the capacity of the UP S ,
later working mode
displays Line or
byPASS, bat icon flash

Working mode displays
Line, load icon flash

Working mode displays
FAULT and the

Working mode displays
bAT, load icon flash

One beep

/ 2 min

One

beep / 4

One

beep / 4

6 beeps

2 beeps /

sec

Long
beep

2 beeps /

sec

No flash

One
flash

One
flash

Flash
always

2
flashes

Flash
always

2
flashes

One
flash

One
flash

Flash
always

Flash
always

/ /

Flash
always

/

One
flash /

/

/

Flash
always

/

Flash
always

/

Protect operation for
battery mode

Warning for bypass

6

mode overload

7 Fans fault(fan icon）

Working mode displays
FAULT and the

Working mode displays
byPASS, load icon

Fan icon flash, working
mode displays

21

Long
beep

One

beep / 2

One

beep / 2

Flash
always

One
flash

No flash / /

/

One
flash /

Flash
always

/

code

2 ● 3 ● ●

8 ●

mode

Working mode displays

8 Faults mode

FAULT, numerical
value area displays the
corresponding error

Long
beep

Flash
always

/

Flash
always

Note:

 End user need to provide below information when require to maintain the UPS.
 UPS Model No. & Serial No.
 Date of fault occurrence.
 Fault details (LCD status, noise, AC power situation, l oad ca p aci t y, battery capacity

configuration ect.)

Table 3: Alarm code display

The alarm code will be displayed in four digital tubes on the right of the numerical part
of the LCD screen (red mark) , as show n below :

Alarm icon
Alarm code

The alarm truth table during operations is shown as below：

‘●’ signifies the alarm occurs, blank signifies no alarm appears

The first
digital tube
from right to
left

Display

0
1 ●

4 ●
5 ● ●
6 ● ●
7 ● ● ●

9 ● ●

A ● ●

Bypass lost

Remote

22

overload

Battery

The second

2 ●

7 ● ● ●

Low battery

Median abnormal

0

5 ● ● 6 ● ●

digital tube
from right to
left

B ● ● ●
C ● ●
D ● ● ●
E ● ● ●
F ● ● ● ●

Display

0
1 ●

3 ● ●
4 ●
5 ● ●
6 ● ●

8 ●
9 ● ●
A ● ●
B ● ● ●
C ● ●
D ● ● ●
E ● ● ●
F ● ● ● ●

Display

Overcharging

EEPROM

Mains

Fan

Start-up

Charger fault

The third
digital tube
from right to
left

1 ●
2 ●
3 ● ●
4 ●

7 ● ● ●
8 ●
9 ● ●
A ● ●
B ● ● ●
C ● ●
D ● ● ●

23

Over load fault

Mains lost

5 ● ●

E ● ● ●
F ● ● ● ●

The fourth
digital tube
from right to
left

Display

0
1 ●
2 ●
3 ● ●
4 ●

6 ● ●
7 ● ● ●

Bypass

Example:
If the alar m c ode "2000" appears on the LCD screen, it indicates loss of mains power.

24

fault code is 00-14

fault code is15-24

supplier directly.

fault code is 25-39

persists, contact the supplier.

problem persists, contact the supplier.

Fault icon display, audible

Input NTC fault

Contact the supplier.

7 Troubleshooting

When the system works in fault mode, the LCD displays as below:

Fault code

Problem Possible Cause Solution

Fault icon display, audible
buzzer alarm continually, the

Bus bar voltage fault

Test the bus bar voltage or contact the
supplier.

Fault icon display, audible
buzzer alarm continually, the

Fault icon display, audible
buzzer alarm continually, the

Fault icon display, audible
buzzer alarm continually, the
fault code is 40-44

Fault icon display, audible
buzzer alarm continually, the
fault code is 45-49

Fault icon display, audible
buzzer alarm continually, the
fault code is 50-54

Check the soft start circuit, e sp ecially

Soft start fault

Inverter voltage fault Contact the supplier .

Over temperature
inside

Output short-circuit

Overload

the soft start resistance or contact the

Be sure that the UPS are not
overloaded, and the fan vent is not
obstructed, as well as the indoor
temperature is not high.
Leave alone the UPS 10 minutes for
cooling, and restar t it. If the problem

Turn off the UPS and disconnect all the
loads. Be sure there is no any fault or
internal short circuit of the loads.
And then restart the UPS. If the

Check the load level and disc onnect
the non-critical equipments, recount
the total capacity of your load and
reduce t he load to the UPS.
Check whether the load equipments
has fault or not.

25

buzzer alarm continually, the

fault code is 55-59

fault code is 60-64

supplier if it is abnormal.

the supplier.

supplier.

short

seconds to start the UPS.

disconnect

fault

than 3 hours

the non-critical equipments,

spare parts.

power on

Fault icon display, audible
buzzer alarm continually, the

Fault icon display, audible
buzzer alarm continually, the
fault code is 65-69

Fault icon display, audible
buzzer alarm continually, fan
icon in the LCD flickers

UPS fail to start when operate
‘On’ key

Back up time become short

Power fault

Input fuse fault

Fan fault

Pressing time too

The input connection
is not ready or
UPS internal battery

UPS inter nal system

Battery undercharge

UPS overload

Battery maturing,
capacity descend

Check whether the input & output
power are normal or not, contact the

Check if the input fuse is burnt.
Replace the old fuse and restart the
UPS. If the problem persists, contact

Check whether the fans are connected
and fixed well or not, and if fans are not
broken. If all seems fine, contact the

Press the power key more than 2

Connect the input well, if the battery
voltage is too low, disconnect the input
and start the UPS with no-load.

Contact the supplier.
Keep the UPS battery recharging more

Check the load level and disconnect

Replace with new batteries, contact the
supplier to get the new batteries and

UPS doesn ’t have any power
going through even mains

UPS input breaker
disconnected

Reset the circuit breaker by manual.

Note:

When the output is short-circuited, the action of UPS protection will show up. Before
turning off the UPS, make sure to disconnect the entire loads and cut off the mains
power supply, otherwise it will make the AC input shor t circuit.

26