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USER MANUAL

On-Line UPS

Model ZS110

1000VA/2000VA/3000VA

Uninterruptible Power Supply System

1 Introduction

1 Description of Commonly Used Symbols

Some or all of the following symbols may be used in this manual and may

appear in your application process. Therefore, all users should read the

form carefully and thoroughly.

Symbol & Description

Symbol

Description

Caution, danger

Danger electric shock

Alternating current (AC)

Direct current (DC)

Protective ground

Recycle

Do not dispose with ordinary trash

1. 2 Safety Instructions

1. Read this manual carefully and thoroughly before operation the UPS and

save this manual properly for future reference.

2. Do not tear up or shatter the alarm table on the UPS and pay attention to

it.

3. Please do not overload the UPS.

4. The UPS contains large capacity batteries. The case of the UPS must not

be opened by untrained personnel. Otherwise, it may cause electric

shock.

5. Do not short the positive and negative electrodes of battery. Otherwise, it

may cause electric shock or fire.

6. Do not plunge or insert any objects into the air vents and other inlets.

7. Do not store or use the device in the following environment:

Where there is inflammable gas, corrosive agents or heavy dust

Where the temperature is very high or low (above 40

℃

or below 0

℃

)

or the humidity is very high(more than 90%)

Under direct sunlight or close to heating facilities

Place of strong vibrations

8. In the event of fire occurring in the vicinity, please use dry powder fire

extinguishers .The use of liquid fire extinguishing agents may cause

electric shock.

2 Product Description

The ST-series is an on-line uninterruptible power supply device

incorporating double-converter technology with single-phase input and

single-phase output. It offers the high quality power supply with the

greatest degree of availability and reliability. The 1-3kVA of ST series is

compact and convenient for users, especially for the basic equipments in

some areas such as: finance, communication, government, traffic,

manufacture, education and so on.

2. 1 System Type and Configuration

There are two types of UPS according to the battery configuration: standard

type and long backup time type, each available in the following ratings:

1kVA, 2kVA and 3kVA UPS.

Table 2-1 UPS types and configurations

Type

Model

Remark

1kVA

ZS110

-1K

With a 1A internal charger and 3 build-in batteries of

12V/ 7AH

2kVA

ZS110

-2K

With a 1A internal charger and 6 build-in batteries of

12V/ 7AH

Standard

3kVA

ZS110

-3K

With a 1A internal charger and 8 build-in batteries of

12V/ 7AH

1kVAS

ZS110-

1K-KS

With a 7A internal charger and external battery slot.

2kVAS

ZS110-

2K-KS

With a 7A internal charger and external battery slot.

Long

Backup

Time

3kVAS

ZS110-

3K-KS

With a 7A internal charger and external battery slot.

Note:

“-KS” model means Long Backup Time

2. 2 The Appearance of the UPS

Figure 2-1 The rear panel of ZS110-1K-KS

Figure 2-3 The rear panel of ZS110-2K-KS-ZS110-3K

* The picture for back panel is just for reference, it subjects to change on

customer’s requirement, please refer to the real subject.

Note

：

The appearances above are examples with the long backup time, the corresponding

standard type is without the “External Battery slot”.

2. 3 Operating Principle

Figure 2-4 The UPS operating principle

1. Input filter: it filters the input and provides clean AC power to the UPS.

2. AC/DC converter: In Normal mode, it converts the AC input power to

regulated DC power, and raises the regulated DC voltage for DC/AC

converter.

3. DC/DC converter: Raises the DC Voltage from the battery system to the

optimum operating voltage for the inverter when the UPS operates in

Battery mode.

4. DC/AC inverter: In Normal mode, it utilizes the DC output of the

AC/DC converter and inverts it into precise, regulated sine wave AC

power. In Battery mode, it receives energy from the battery through the

DC/DC converter.

2 Product Description

5. Bypass: It is very important in the UPS system. In the event of a UPS

fault that will not lead to UPS shutdown, the load will be automatically

transferred to the bypass. Meanwhile, the LED indicators will indicate

the fault type, and the fault information will be reported through the

communication ports.

6. Charger: The charger of standard UPS provides 1A charging current; and

long backup time provided 7A charging current.

7. Battery: Sealed maintenance-free lead –acid battery can be used as the

DC source of the UPS.

8. Output filter: It filters the output and provides clean AC power to the

load.

3 Installation

3. 1 Unpacking Inspection

1. Open the packing box of UPS and take it out, visually examine the unit

for transit damage.

2. Check against the accessory lists that the accessories of the UPS are

present. (Refer to Table 9-1).

3. Make sure the model is what you wanted from the nameplate on the rear

panel

4. If the UPS arrives damaged, or there is any missing accessory or other

question above, please contact the distributor immediately.

3. 2 Installation Notes

1. When locating the UPS, make sure there is no hazardous objects such as

water, inflammable gas, corrosive agents and so on around the UPS, and

that the installation environment meets the specifications.

2. The UPS should not be placed on a side. The air inlet port at the front

panel and the outlet port on the rear panel and two side panels should not

be blocked so as to ensure good ventilation.

3. In case if the UPS is unpacked, installed and used at very low

temperatures, condensations of water drops may appear. It is necessary

to wait until the UPS fully dried inside out before proceeding to

installation and use. Otherwise, they may be a risk of electric shock.

4. Place the UPS near the utility power source outlet which supplies power

to the UPS. In any emergency, switch off the main input socket, cut off

the battery voltage input. All power sockets must be connected with

ground protection.

3. 3 Cable Connection

3.3.1 Connecting Input and Output Cables
1. Input cable connection

If the UPS is connected via the power cable, please use a proper socket

with over current protection, and pay attention to the capacity of the

socket: over 10A for ZS110-1K(-KS), over 16A for ZS110-2K(-KS) and

ZS110-3K(-KS). A side of input wiring has been fixed with the UPS, and

the other side is just need to plug into the input socket. The wiring

configuration is shown in the following diagram.

Figure 3-1 Connection Method of Input

2. Output cable connection

The output of ZS110-1K(-KS)/ ZS110-2K(-KS)/ ZS110-3K(-KS) all

available to uses sockets. The total output power shall not exceed

1kVA/0.8kW, 2kVA/1.6 kW

，

3kVA/2.4 kW. Simply plug the load power

cable to the output sockets of UPS to complete connection as shown in

the following diagram.

Figure 3-2 Connection method of output

3.3.2 Operation Procedure of External Battery for Long Backup

Time UPS

The battery connection procedure is very important for long backup model.

Any incompliance may result in the risk of electric shock. Therefore, the

following steps must be strictly complied with.

1. First connect in series the batteries of the pack to ensure proper battery

voltage that ZS110-1KS for 36VDC, ZS110-2KS for 72VDC,

ZS110-3KS for 96VDC.

2. Take out the battery cable delivered with the UPS, one end of the

external battery cable is a plug for connecting the UPS, the other end has

3 open wires for connecting the battery pack.

3. Connect the external battery cable to the battery terminal (DO NOT

connect the battery socket of the UPS first. Otherwise, it may cause

electric shock). Connect the red wire to the “+” terminal of the battery.

The black wire is connected to the “-” terminal of the battery. The

green/yellow wire is grounded for protection purpose.

4. Connect the plug of the external battery cable to the external battery

slot on the rear panel of the UPS to complete the connection procedure.

Figure 3-3 Battery connection diagram for Long Backup time models

Note

：

The length of the external battery cable is 1.6 m, If users need a longer one,

please consult the distributor. There is a limit to the length of the external

battery cable to ensure normal operation of the UPS.

3.3.3 Connecting Communication Cable
1. Computer interface

Computer interface: The type of signals is provided by the UPS to

communicate with a host computer through

communication cable included in the standard

accessory, User can use special monitor software

UPSilon in the standard accessory to monitor the UPS

through the port.

2. Alternative connection of communication

Intelligent Slot: It is designed for installing the dry contact card, SNMP

card and 485 card. You can choose for one of them to

installed

－

dry contact card: You can utilize monitor function of dry contact to

manage the power supply directly.

－

SNMP: It enables you monitor the UPS remotely through Internet.

－

485: Central monitor card.

Note:

Please remove the cover board of the intelligent slot before any card is

installed.

4 Chapter Empty, not present any more

5 Operation (LCD model)

5.1 Operation Display Panel

1. ON button:

Pressing the ON button more than 1 second (buzzer beeps once), the UPS

system is turned on.

2. OFF button:

By pressing this button more than 1 second (buzzer beeps once) turns off

the UPS system whenever the UPS run under the normal mode/battery

mode.

3. Function button

The Function button provides the following functions:

a) Battery self- diagnosis: When the UPS ran in normal mode, pressing this

button more than 2 seconds (buzzer beeps twice) can start the battery

self-diagnosis.

b) Silence function in battery/bypass mode

In battery/bypass mode, when the buzzer beeps, pressing and holding the

function button for more than 2 seconds (buzzer beeps two times) can

silence the buzzer. Press the button for more than 2 seconds (buzzer beeps

twice) again to resume the alarm function

c) LCD display screen switch

Pressing the function button for more than 1 seconds and less than 2

seconds (buzzer beeps once) to switch LCD display screen

4 LED indicators

The LED indicators contains, Bypass indicator, utility power indicator,

Inverter indicator, Battery indicator. The definition of each indicator is the

same as LED panel (refer to table 4-1).

5.2

Operation Mode

UPS Operation Mode contains normal mode, battery mode and bypass

mode. Under the three modes, the page showing output voltage and output

frequency is the main display page. If users need more information about

UPS, Pressing the function button can initiate display screen switch. If the

current page is not the main page, UPS will automatically switch back the

main page after 30 seconds. In order to extend the LCD usage life, the

backlight will turn off after 1 minute without any switch operation. At this

point, Users just need to touch any button briefly to turn on the backlight.

5.2.1

Normal mode

When operating in the normal mode, the display of main page on the front

panel is shown as the figure 5-2. The utility power indicator and the

Inverter indicator are turned on. Load information area shows load value,

and the battery level area indicates dynamically when the battery is not

fully charged (the battery level icons lit one after another circularly). When

the battery is fully charged, all the level icons are turned on.

1) If the utility power indicator blinks, it indicates that there are problems

with reversed polarity (L, N) of site wiring or disconnect with ground.

UPS is still working in normal mode. If the battery indicator is turned on

at the same time, it shows that the voltage or frequency of the utility

power is out of the normal input range of the UPS. The UPS works in

battery mode.

Figure 5-2 Normal Mode

2) If load is more than 100 percent, the buzzer beeps every second,

meanwhile, the warning icon blinks every second too, reminding that

UPS is overloaded. You should get rid of some unnecessary loads one by

one to decrease the loads until the alarm clear

3) If the battery indicator blinks, it indicates that no battery is connected to

the UPS or battery voltage is too low. You should check if battery is

properly connected to the UPS, and press function button more than 2

seconds to start the battery self-diagnosis. If the connection between

battery and UPS is confirmed without any problem, it may be due to the

defect or aging of the battery, please refer to the “troubleshooting” in

chapter 7 to solve the problem accordingly.

4) The other four display pages are load percent page, actual load page,

input information page and the maximum temperature page.

Note

：

Connection to a power generator has to be made according to the following:

Activate the power generator and wait until the operation is stable before

connecting the output of the power generator to the UPS (be sure that the

UPS is in idle mode). Then, turn on the UPS according to the startup

procedure. After the UPS is turned on, the loads are connected one by one.

It recommended that the capacity of the generator should double than UPS

5.2.2 Battery Mode
When operating in the battery mode, the display of main page on the front

panel is shown as the figure 5-3. The battery indicator and the Inverter

indicator are turned on. If the utility power indicator blinks at the same time,

it shows that the utility power is abnormal. Load information area shows

load value, and bat level area shows current battery capacity.

1) When the UPS is running in battery mode, the alarm will beep every 4

seconds. If the “Function” key is pressed for more than 2 seconds, the

alarm will not beep

（

silence function

）

. Press the “Function” key more

than 2 seconds again to resume the alarm function.

Figure 5-3 Battery Mode

2) When the battery capacity decreases, the number of battery capacity

indicators turned on will decrease. If the battery voltage drops to the

pre-alarm level, the alarm will beep every second to remind the user of

insufficient battery capacity.

3) The other four display pages are load percent page, actual load page,

battery information page and the maximum temperature page.

5.2.3 Bypass Mode
When operating in bypass mode set up through UPSilon

software, the

display on the front panel is shown as the figure 5-4, the utility power

indicator and the bypass indicator are turned on. Load information area

shows load value, and the battery level area indicates dynamically when the

battery is not fully charged (the battery level icons lit one after another

circularly). When the battery is fully charged, all the level icons are turned

on.

1) When operating in bypass mode, the UPS beeps every 2 minutes. If the

“Function” key is pressed for more than 2 seconds, the alarm will not

beep

(

silence function

)

. Press the “Function” key more than 2 seconds

again to resume the alarm function.

2) If the utility power indicator blinks, it shows that the voltage or

frequency of the utility power is out of the input range of the UPS or

there are problems with reversed polarity (L/N) of site wiring or

disconnect to the ground for protection.

3) The other four display pages are load percent page, actual load page,

input information page and the maximum temperature page.

Notes:

When operating in bypass mode, the backup function of the UPS is not

available and the power used by the load is directly from the utility

power via internal EMI filter.

Figure 5-4 Bypass Mode

5.2.4 LCD indication of UPS alarm status and faults
In the event of an UPS fault, UPS enters fault operation mode, at this point,

the fault icon turns on consistently, the buzzer beeps continuously and the

data information area shows current fault code (refer to table 6-2), the

display on the front panel is shown as the figure 5-5, users can switch to

output page by pressing function button.

Figure 5-5 Fault display

When a warning occurred, the fault icon blinks every second, and users can

switch to the alarm display page shown as the figure 5-6 to check the

warning code.

Figure 5-6 Alarm display

5.3 Operating Instructions

5.3.1 UPS ON/OFF Operation

Note

：

The battery is fully charged before delivery. However, storage and

transportation will inevitably cause some charge loss. Therefore, it

is advisable to charge the battery for 10 hours before using it, so as

to ensure adequate battery capacity.

1. Turning on the UPS

The operation of turning on the UPS contains: turning on with utility power

and turning on without utility power.

1) Turning on with utility power:

Connect the mains input to the UPS, press the ON button more than one

second, UPS starts to turn on. At this point, the LCD begins to conduct

self-diagnosis (all the LCD indicators are turn on about 4 seconds). A

few seconds later, the UPS will begin to operate in Normal mode;

meanwhile, the utility power indicator, inverter indicators will turn on. If

the utility power is abnormal, the UPS will work in battery mode.

2) Turning on without utility power:

With no mains input feed to the UPS, press the ON button more than one

second, ups start to turn on, At this point, the LCD begins to conduct

self-diagnosis (all the LCD indicators are turn on about 4 seconds). A

few seconds later, the battery indicator, inverter indicators will be turn on

to indicate that the UPS is working in battery mode.

3). Powering down the UPS

The operation of powering down the UPS contains: turning off ups in

normal mode, turning off ups in battery mode

4) Completely power down the UPS from Normal mode

Hold and press the OFF button persistently for more than 1 second to

power off the UPS. If it bas been set up to work in bypass mode by

software, the bypass indicator will be turned on to indicate that the UPS

is working in bypass mode. In order to cut off the output from the UPS,

simply cut off the utility power supply. LCD begins to conduct

self-diagnosis (all the LCD indicators are turned on about 4 seconds),a

few seconds later, not any display is shown on the front panel and no

output is available from the UPS outlets, system completely power down.

5) Completely power down the UPS from Battery mode

Press the “OFF” button persistently for more than 1 second to power off

the UPS. When being powered off, the LCD will start self-diagnosis (all

the LCD indicators are turn on about 4 seconds), a few seconds later, not

any display is shown on the front panel and no voltage output is available

from the UPS outlets, system completely power down.

5.3.2 Conducting Battery self-diagnosis
In UPS operation, users can manually initiate battery self-diagnosis to

check the battery conditions. There are two methods to initiate the battery

self-diagnosis:

1. Through the function button

In normal mode, press and hold the function for more than 2 seconds

until the buzzer beeps twice. At this point the indicators (LED7~10) will

blink cyclically, indicating the UPS has worked in battery mode and the

battery self-diagnosis has started. The battery self-diagnosis will last for

10 seconds default. In the event of a battery fault during battery

self-diagnosis, the UPS will transfer to normal mode automatically.

2. Through the monitor software

Users can also initiate battery self-diagnosis through the background

monitoring software.

6 Maintenance

6.1 Battery Maintenance

The battery is key component of the UPS. The battery life depends on the

ambient temperature, charging and discharging times. High ambient

temperature and deep discharging will shorten the battery life.

1. Sealed maintenance-free lead –acid battery be used in the standard.

When being connected to the utility power whether the UPS has been

turned on or not, the UPS keeps charging the battery and also offers the

protective function of charging and discharging.

2. Keep the ambient temperature between 15

℃

and 25

℃

3. If the UPS has not been used for a long period, charging is recommended

at the intervals 3 months.

4. Batteries should not be replaced individually.

5. Under normal conditions, the battery life lasts 3 to 5 years. In case if the

battery is found not in good condition, earlier replacement should be

made. The battery should only be replaced by qualified service

personnel.

Note:

1.Prior to battery replacement, the UPS must be turned off and disconnected

from utility power.

2. Metal objects such as rings and watches should be removed.

3. Use the screwdriver with insulated handle. Tools and other metal objects

should not be placed on the battery.

4. Short circuit or reverse connection between the positive and negative

terminal of the battery is strictly forbidden.

6. 2 Checking UPS function

Every time when conducting field maintenance, please check the regular

function of the UPS, including:

1. Check the operation status of the UPS

If the main voltage is within the specifications, the UPS should operate

in normal mode; if the main voltage is abnormal, the UPS should operate

in battery mode. In both cases, there should be no fault indication.

2. Check the transfer between the UPS operation modes

Disconnect the main input to simulate a mains failure, the UPS should

transfer to battery mode and operate normally; then recover the mains

input, the UPS should transfer to normal mode and operate normally

3. Check the LED indicators of the UPS

During the check processes stated above, check that the LED indication

of the UPS agrees with the UPS operation mode.

7 Troubleshooting

In the event of an UPS fault, shoot the trouble according to Table 6-1. If the

fault still persists, please contact our customer service center.

Faults

Fault/Warning

code

Fault icon

Alarm

Possible

cause

Solution

F01

on
constantly

Beep
continuously

Internal
fault.

Please

contact

the

distributor or Service center

F02

on
constantly

Beep
continuously

Internal
fault.

Please

contact

the

distributor or Service center

F03

on
constantly

Beep
continuously

Internal
fault.

Please

contact

the

distributor or Service center

F04

on
constantly

Beep
continuously

The

UPS

output

short
circuited

Turn  off  the  UPS.  Remove
all  loads.  Ensure  that  the
loads  are  not  failed  or  the
UPS  has  no  internal  short
before  turn  on  it  again.  If
failed,  please  contact  the
distributor or service center

F05

on
constantly

Beep
continuously

Internal
fault.

Please

contact

the

distributor or Service center

F06

on
constantly

Beep
continuously

Internal
fault.

Please

contact

the

distributor or Service center

F07

on
constantly

Beep
continuously

Overload
fault

Reduce the member of
loads connected to the
UPS.

F08

on
constantly

Beep
continuously

Internal
overheat

Ensure that the UPS is not
overloaded

and

the

ventilation opening is not
blocked

and

ambient

temperature is not too high.
Wait for 10 min. for the UPS
to cool down before turning
it on again. If it does not
work. Please contact the
distributor or service center.

F09

on
constantly

Beep
continuously

The
charger of
the UPS is
defective

Please

contact

the

distributor or Service center

A01

Blink once
every
second

Beep once
every
second

Overload
pre-warning

Reduce the member of
loads connected to the
UPS.

7 Troubleshooting

Faults

Fault/Warning

code

Fault icon

Alarm

Possible

cause

Solution

A02

Blink once

every

second

Beep

continuously

Battery
overcharging

Please

contact

the

distributor

Service

center

A03

Blink once

every

second

Beep once

every

second

UPS power
on abnormal

Check the battery of the
UPS connected properly.

A04

Blink once

every

second

Beep once

every

second

Battery
voltage low

The UPS output will be

cut off, please switch to
the backup power.

A05

Blink once

every

second

Beep once

every

second

Fan failure

Ensure that the fan is not
locked

A06

Blink once

every

second

Beep once

every two

minutes

Maybe
reversed
polarity (L,N)
of site wiring

or disconnect
with ground.

Please check  the  polarity
of  the  neutral  wiring  and
the  line  wiring,  ensure
that The

green/yellow wire

connect protective ground
properly

Table 7-2 UPS troubleshooting of LCD panel indicator

When you contact the service center, please provide the following information:

●

Model No and Serial No of the UPS.

●

The date when the problem arose.

●

Complete description of the problem, including the panel display, alarm

warning, and power condition and the load capacity. If the UPS is a long

backup time model, you may also provide the battery information.

8 Specifications

8. 1 Electrical

Model

ZS11

0-1K

ZS110-

1K-KS

ZS11

0-2K

ZS110-

2K-KS

ZS11

0-3K

ZS110-

3K-KS

Rating

1KVA/800W

2KVA/1600W

3KVA/2400W

Input system

Single phase & earth ground

Rated voltage

220VAC

Voltage range

115VAC~300VAC

Frequency

50Hz

Power factor

≥

0.99

Input

Voltage range of
bypass

（

80±5)VAC

～（

286±5)VAC

Output system

Single phase & earth ground

Rated voltage

220VAC

Power factor

0.8

Voltage precision

Normal
mode

Output
frequency

Battery
mode

1.The output frequency synchronizes with the input

frequency when the input frequency is in the
range of 46 Hz

～

54 Hz

2.The output frequency is 50Hz when the input

frequency is not in the range of 46 Hz

～

54 Hz

Inverter overload
capacity

（

Utility

power

，

℃）

105%±5%<Load

≤

125%±5% 50s transfer to bypass

125%±5%< Load <150%±5% 25s transfer to bypass
Load > 150%±5%,300ms transfer to bypass

0ms

（

Normal mode

←→

Battery mode

）

Transfer time

<4ms

（

Normal mode

←→

Bypass mode

）

Output

Crest factor

3:1

Batteries voltage

36VDC

72VDC

96VDC

Battery Quantity

none

Battery Type

Sealed maintenance-free lead –acid battery of
battery voltage 12V/7AH

Backup Time

（

℃）

Full load

≥

5min (Standard)

Battery

Charge current

8. 2 Mechanical

Model

W*H*D(mm)

Weight(kg)

ZS110-1K

144×229×350

11.5

ZS110-2K

190×328×424

ZS110-3K

190×328×424

ZS110-1K-KS

144×229×350

ZS110-2K-KS

190×328×424

ZS110-3K-KS

190×328×424

8. 3 Environmental

Item

Normal range

Ambient temperature

℃～

℃

Environment humidity

20%

～

90%

（

No condensation

）

Altitude

Lower than 1000m: no derating

Over 1000m :1% derating for every 100m rise

Storage temperature

-15

～

8. 4 EMC

Item

Standard

Level

ESD

IEC61000-4-2

LEVEL4

IEC61000-4-3

LEVEL3

EFT

IEC61000-4-4

LEVEL4

Surge

IEC61000-4-5

LEVEL4

8. 5 Safety

Comply with GB4943-2001, IEC62040-1 and CE requirements.

8. 6 Industry Standard

Comply with EN62040

，

YD/T 1095-2000 requirements.

9 Appendix

9.1 Consignment Lists

Model Type

Accessories

Machine

Intelligent monitor software CD

User Manual

Standard Model

Serial communication cable

Machine

Intelligent monitor software CD

User Manual

External Battery Cable

Long backup

time Model

Serial communication cable