Avansys Power iTrust UH11-0020, iTrust UH11-0030, iTrust UH11-0020(B), iTrust UH11-0010L, iTrust UH11-0010 User Manual

iTrust Online UPS

UH11 Series-1kVA/2kVA/3kVA

User Manual

E1-20010915-C-1.0

Avansys Power Co., Ltd.

iTrust Intelligent High Frequency Online UPS

UH11 Series-1kVA/2kVA/3kVA

User Manual

31010809BOM:

StandardPublication State:

E1-20010915-C-1.0Manual Ver.:

Avansys Power Co., Ltd. provides customer with satisfactory technical

support. To obtain support, please contact the distributor in the first

instance. When failing to reach the distributor, please contact your

local technical support center or the company headquarters.

Avansys Power Co., Ltd.

Address: Huawei Manufacturing Center, Banxuegang Industrial Base,
Longgang District, Shenzhen 518129, PRC

Homepage

http://www.avansys.com

E-mail

[e-mail]

Copyright Information

Copyright by Avansys Power Co., Ltd.
All rights reserved.
The information in this document is subject to change without notice.
No part of this document may in any form or by any means
(electronic, mechanical, micro-copying, photocopying, recording or
otherwise) be reproduced, stored in a retrieval system or transmitted
without prior written permission from Avansys Power Co., Ltd..

Publication Statement

Thank you for using iTrust series UPS by Avansys Power Co.,
Ltd. UH11 series is the latest single-phase input single-phase
output intelligent online UPS developed by Avansys incorporating
years of experience in power supply development. As a
world-leading standard UPS product, this series delivers
excellent electrical performance, is fully compliant with safety
regulations and EMC standards, features perfect intelligent
monitoring and network management, and is well-shaped with
beautiful appearance.

Please read through this manual prior to installation and
operation.

Readers

This manual is intended for equipment operator and technical
support personnel.

Conventions

Symbol



Notice

This symbol is used in this manual to alert you to

important information.

Safety Guidelines

. Prohibitions

1. As high voltage exists within UPS, no one but Avansys
technician and Avansys-authorized technician should open the
panel and the chassis cover. Otherwise, one may get electric
shock and such situation is not covered under warranty.

2. When the UPS is purchased to supply the equipment listed
below, please consult the distributor in advance on the UPS
application, setting, management and maintenance, which need
special consideration and design.



Life support medical apparatus;



Facilities such as lift which may endanger human life;



Mission-critical equipment like above.

3. Never dispose of battery in a fire, as battery may explode
when exposed to flame.

. Matters needing attention

1. The UPS contains its own energy source-battery, the UPS
output may carry live voltage even when the UPS is not
connected to an AC supply.

2. To move or re-wire the UPS, please disconnect the input and
make sure that the UPS is completely shut down. Otherwise, live
voltage still exists at the output terminal, which may cause
electric shock.

3. To ensure human safety, the UPS must be reliably grounded
before use.

4. The operating environment and storage method will affect the
lifetime and reliability of the UPS. Please don’t use the UPS long
in the following environments



Place with temperature and relative humidity outside

specifications (temperature: 0

to 40 , relative humidity: 5% to

95%);



Place with direct sunlight or near heat source;



Place with vibration or shock;



Place with dust, corrosive material, salt or flammable gas.

5. Please keep the air inlet and outlet unblocked. Poor ventilation
will increase the internal temperature, which will shorten the
lifetime of the UPS components, hence that of the UPS.

6. Liquid and other irrelevant substances are strictly prohibited
inside the UPS chassis.

7. In case of fire, please use dry-chemical fire extinguisher. Using
foam fire extinguisher may cause electric shock.

8. High ambient temperature shortens battery lifetime, so battery
should be replaced regularly to ensure normal UPS operation
and adequate backup time. Battery replacement must be
conducted by authorized technician.

9. If the UPS will not be used for long, it should be placed in dry

environment. Storage temperature of standard UPS (with battery):

–20

+55 , storage temperature of long backup time UPS

(without battery): –40

+70 .

1

0. During the period the UPS is left unused, it is recommended

to supply the UPS with AC mains for more than 12 hours every 3
months, so that the battery will not be damaged due to long time
of not-in-use.

11. Please don’t open or damage the battery, as the electrolyte is
harmful to skin and eye. If tainted with electrolyte, wash it off
immediately with plenty of water and go to hospital for a check.

Contents

213.1.3 Battery Mode

----------------------------------

21

3.1.2 Bypass Mode

---------------------------------

20

3.1.1 Normal Mode

----------------------------------

20

3.1 Operation Mode

------------------------------------

20

Chapter 3 Operation -------------------------------------

14

2.2.2 Installing the UPS

------------------------------

12

2.2.1 Matters Needing Attention

------------------------

12

2.2 Installation

----------------------------------------

12

2.1 Unpacking Inspection

--------------------------------

12

Chapter 2 Installation ------------------------------------

9

1.5.3 Rear Panel

------------------------------------

5

1.5.2 Front Panel

------------------------------------

4

1.5.1 Appearance

------------------------------------

4

1.5 Appearance and Panels

-------------------------------

2

1.4 Features

-------------------------------------------

2

1.3 Schematic Diagram

-----------------------------------

1

1.2 Model

---------------------------------------------

1

1.1 Application

-----------------------------------------

1

Chapter 1 Product Introduction -----------------------------

35

V. Function Inspection

-----------------------------------

34

IV. UPS State Check

------------------------------------

34

III. Keep Air Vent Unblocked

------------------------------

33

II. Battery Maintenance

----------------------------------

33

I. Fan

-----------------------------------------------

33

Chapter 4 Maintenance ----------------------------------

32

3.4 UPS Monitoring

-------------------------------------

31

3.3.4 Output Short-circuit Protection

---------------------

31

3.3.3 Transfer to Bypass Mode in the Event of
Overtemperature

------------------------------------

31

3.3.2 Transfer to Battery Mode in the Event of Mains
Failure

-------------------------------------------

30

3.3.1 Transfer to Bypass Mode in the Event of
Overload

------------------------------------------

30

3.3 Auto Transfer Between UPS Operation Modes

-------------

30

3.2.5 System Power-off

------------------------------

29

3.2.4 Turn off Inverter

--------------------------------

28

3.2.3 Battery Management

----------------------------

23

3.2.2 Start Inverter Output

----------------------------

22

3.2.1 System Power-on

------------------------------

22

3.2 Operation

-----------------------------------------

22

3.1.4 Fault Mode

-----------------------------------

50

Appendix 4 Optional Component --------------------------

47

Appendix 3 Technical Specifications -----------------------

43

Appendix 2 Grounding & Lightning Protection ----------------

42

Dry Contact Communication Mode

--------------------------

41

RS-232 Communication Mode

-----------------------------

41

Appendix 1 Communication Port ---------------------------

39

Chapter 6 Service and Support ----------------------------

36

Chapter 5 Troubleshooting --------------------------------

Chapter 1 Product Introduction

1.1 Application

iTrust series UPS provides reliable and high quality AC power to
your sensitive equipment. It is applicable to supply AC power to
computer center, network management center, communication
system, auto control system, and precision instrument, etc.

1.2 Model

iTrust series UPS has among others 1kVA, 2kVA, and 3kVA UPS
products available, as listed below:

Long
backup time
UPS, with
external
battery

Standard
UPS, with
internal
battery

Long backup
time UPS, with
external battery

Standard
UPS, with
internal
battery

Long
backup time
UPS, with
external
battery

Standard
UPS,
with
internal
battery

Expla
nation

UH11-0030LUH11-0030

UH11-0020L
UH11-0020L(B)

UH11-0020
UH11-0020(B)

UH11-0010LUH11-0010Model

3kVA2kVA1kVA

Capa

city

Chapter 1 Product Introduction 1

E1-20010915-C-1.0

1.3 Schematic Diagram

Rectifier

Inverter

Mains

Load

Bypass

Electronic transfer

switch

Charger

Charger

High capacity rectifier

Input fuse

(a) 1kVA

Rectifier

AC mains

Bypass

Inverter

Load

Electronic
transfer switch

Charger

Charger

High capacity rectifier

Input switch

(b) 2kVA/3kVA

Fig. 1 System Schematic Diagram

1.4 Features

iTrust series 1kVA/2kVA/3kVA UPS is an intelligent online UPS
system with sine wave output newly developed by Avansys Power
Co., Ltd.

2 Chapter 1 Product Introduction

E1-20010915-C-1.0



The system adopts high-frequency double conversion topology
structure with high input power factor, wide input voltage range,
and output immune from mains interference, hence the product
is suitable for areas with unstable mains supply;



It adopts advanced full digital control technology based on DSP
to achieve high system reliability, features self-protection and
fault diagnosis;



It features excellent intelligent battery management, extending
battery life;



The panel operation interface adopts LED display, facilitating
user to learn about the system operation state;



With Avansys monitoring software, perfect network management
of UPS can be achieved.

Chapter 1 Product Introduction 3

E1-20010915-C-1.0

1.5 Appearance and Panels

1.5.1 Appearance

Air inlet

Air inlet

LED display panel

LED display panel

1kVA UPS 2kVA/3kVA UPS

Fig. 2 Appearance of 1kVA/2kVA/3kVA UPS

4 Chapter 1 Product Introduction

E1-20010915-C-1.0

1.5.2 Front Panel

Mains indicator

ON/SILENCE button

OFF button

Fault indicator

Battery backup capacity/load indicators

Battery indicator

Bypass indicator

Inverter indicator

ΥΠΣ−1Κς Α

ΥΠΣ−1Κς ΑΥΠΣ−1Κς Α

ΥΠΣ−1Κς Α

Fig. 3(a) Front Panel of 1kVA UPS

Chapter 1 Product Introduction 5

E1-20010915-C-1.0

Battery backup capacity/load indicators

Inverter indicator

Fault indicator

ON/SILENCE button

Air inlet

Mains indicatior

OFF button

Bypass indicator

Battery indicator

Fig. 3(b) Front Panel of 2kVA/3kVA UPS

I. Functions

For heat dissipation of UPS.Air inlet

There are several LED indicators on the panel, showing the UPS state,
load, battery backup capacity, fault, etc.

LED

When the UPS is supplying power through inverter, pressing and
holding this button for 1 second can stop the inverter output (i.e., turn off
the inverter).

OFF button

When the UPS is supplying power through bypass, pressing and holding
this button for 1 second can start the inverter output (i.e., turn on the
inverter); when the UPS is supplying power through inverter, which
obtains power from rectifier, pressing and holding this button for 4
seconds can perform manual battery test; when the UPS is giving
audible alarm, pressing this button can silence the alarm sound.

ON/SILENC

E button

6 Chapter 1 Product Introduction

E1-20010915-C-1.0

II. LED

The LED indicators on the panel are divided into 2 groups according
to their use: one group indicates the load, battery backup capacity or
fault, totally 5 LED indicators, 4 green and 1 yellow; the other group
indicates the UPS state, including the mains indicator, battery
indicator, bypass indicator, inverter indicator and fault indicator.
Below is the detailed description of these indicators:

1. UPS state indicators

The light shines in the event of fault, and goes off
otherwise.

Fault indicator

red

The light shines when the inverter is supplying
power, goes off otherwise, and flashes in the event
of inverter fault.

Inverter indicator

green

The light shines when the battery is supplying
power, goes off otherwise, and flashes in the event
of charger fault, improper battery connection,
reverse battery connection, or battery fault.

Battery indicator

green

The light shines when the bypass is supplying
power, and goes off otherwise.

Bypass indicator

green

The light shines when the mains is normal, goes off
in the event of mains failure, and flashes when the
mains voltage is outside tolerances.

Mains indicator

green

2. Load, battery backup capacity/fault locating indicators

When the AC mains is working normally during UPS operation,
these indicators indicate the load, as described in the following
table:

Chapter 1 Product Introduction 7

E1-20010915-C-1.0

4 green lights and 1 yellow light shining
indicates the UPS assumes more than 95%
rated load

4 green lights shining indicates the UPS
assumes 75%--95% rated load

3 green lights shining indicates the UPS
assumes 55%--75% rated load

2 green lights shining indicates the UPS
assumes 35%--55% rated load

1 green light shining indicates the UPS
assumes 0--35% rated load

When the battery is supplying load, these indicators indicate the
battery backup capacity, as detailed in the following table:

The yellow light shining means the battery is approaching
discharge termination voltage, and the UPS is about to
stop output

1 green light shining means the battery backup capacity is
greater than 20% rated capacity

2 green lights shining means the battery backup capacity
is greater than 40% rated capacity

3 green lights shining means the battery backup capacity
is greater than 60% rated capacity

4 green lights shining means the battery backup capacity
is greater than 80% rated capacity

In the event of UPS fault (the fault indicator shines), these indicators

tell the fault reason (as shown in the following table), so that the fault
can be located quickly.

8 Chapter 1 Product Introduction

E1-20010915-C-1.0

The yellow light flashes

Output
short-circuit

The 4th green light from the left flashes

Auxiliary supply
fault

The 3rd green light from the left flashes

Internal
overtemperature

The 1st green light from the left flashesRectifier fault

1.5.3 Rear Panel

INPUT

Input socket

EXTERNAL BATT.

OUTPUT

Fan

Dry contact

RS232

Output socket

Input fuse

External battery socket

(Long backup time UPS)

SNMP adaptor
slot/false panel

Fig. 4(a) Rear Panel of 1kVA UPS

Chapter 1 Product Introduction 9

E1-20010915-C-1.0

External battery socket /false panel

INPUT

Input switch

Fan

RS-232

Dry contact

Output socket

adaptor slot/false panel

SNMP

Mains input power line

Fig. 4(b) Rear Panel of 2kVA/3kVA UPS

10 Chapter 1 Product Introduction

E1-20010915-C-1.0

Functions:

Ventilating fan for heat dissipation of UPS.Fan

With the optocoupler dry contact port and
monitoring software, the UPS can be monitored
and controlled.

Dry contact port

With the standard RS-232 port and monitoring
software (delivered with the UPS), the UPS can
be monitored and controlled.

RS-232 port

Used to install SNMP (simple network
management protocol) adaptor (optional
component), through which the UPS can be
directly connected into network to achieve UPS
monitoring.

SNMP adaptor slot

For long backup time UPS, which has external
battery, it is the input socket of the external
battery; for standard UPS, which has internal
battery, it is a false panel.

External battery

socket/false panel

The UPS outputs AC power from this socket.
1kVA UPS has 2 output sockets, 2kVA/3kVA
UPS has 4 output sockets.

AC output socket

1kVA UPS adopts 10A/250VAC fuse, built in the
input socket;
2kVA UPS adopts 16A/250VAC circuit breaker;
3kVA UPS adopts 20A/250VAC circuit breaker.

Mains input switch

/input fuse

Used to connect power line 1kVA UPS or

connect the power line to the socket on wall

2kVA/3kVA UPS /or AC mains switchboard,

so as to supply the UPS with AC mains.

Mains input

socket/power line

Chapter 1 Product Introduction 11

E1-20010915-C-1.0

Chapter 2 Installation

2.1 Unpacking Inspection

1. Open the packing box and take out the UPS, be careful not to
drop it as it is heavy.

2. Check whether the UPS has been damaged in transport. In the
event of any damage to the UPS, please notify the distributor for a
check and don’t turn it on.

3. Check the accessories against the delivery accessory list, please
contact the distributor if any accessory is missing.

2.2 Installation

2.2.1 Matters Needing Attention

1. 1kVA UPS (including long backup time UPS) is recommended to be

placed on the desk or ground near the load, and 2kVA/3kVA UPS

(including long backup time UPS) is recommended to be placed on

even ground.

2. The distance from the rear and side panels of the UPS to the wall
or other equipment should be greater than 10cm, and the air inlets
on the front panel should be kept unblocked, so as to facilitate
ventilation and heat dissipation. Otherwise, the UPS internal
temperature will rise, which will shorten UPS lifetime.

3. Install the UPS in environment with good ventilation, avoid
installing it in environment with excessive temperature or humidity,
keep the UPS away from water, flammable gas, corrosive materials,

12 Chapter 2 Installation

E1-20010915-C-1.0

heat source and direct sunlight, and better keep the air inlet/outlet
free of dust.

4. The UPS is suitable for resistive-capacitive load (like computer),

resistive load and micro-inductive load; it is not suitable for purely
inductive load and purely capacitive load (like motor, air-conditioner

and duplicator）; it can not assume half-wave rectifier load.

5. Install the UPS in environment free of dust, volatile gas, salt, and
corrosive materials.

6. Don’t install it in open area.

7. To ensure the safety of the UPS and user equipment, please
adopt correct power distribution:

Input

live line

Input

neutral line

U
P
S

Load

L

N

E

Double-pole linkage

circuit breaker

Output

live line

Output

neutral line

Fig. 5(a) Correct Power Distribution

Input

live line

U
P
S

L

N/E

Output

live line

Input

neutral line

Output

neutral line

Load

Fig. 5(b) Wrong Power Distribution

Chapter 2 Installation 13

E1-20010915-C-1.0

2.2.2 Installing the UPS

I. Connect external battery of long backup time UPS

This step is saved for standard UPS.

1. Please match the UPS model with the battery voltage: 1kVA UPS
uses 36V battery

consisting of 3 12V cells in series

; among 2kVA UPS,

UH11-0020 UPS and UH11-0020L UPS use 120V battery

consisting

of 10 12V cells in series

, UH11-0020B UPS and UH11-0020LB UPS

use 96V battery

consisting of 8 12V cells in series

; 3kVA UPS uses

120V

battery

consisting of 10 12V cells in series

. To avoid abnormal

condition, see to it that the cell number is correct, no more, no less;



Notice

Battery cells by different manufacturer, of different model or use
state can not be combined to constitute a battery.

2. Use voltmeter to check and make sure the external battery socket
has no voltage output;

3. Make sure that the battery switch is placed to OFF;

4. As shown in Fig. 6(a) and Fig. 6(b), connect the battery cables to
the external battery socket. Make sure that the battery poles are not
reversely connected.: red indicates positive pole (+), and black
indicates negative pole

(

). The cables should have redundant
length to avoid inadvertent pulling off. If the external battery cables
delivered with the UPS are not long enough, lengthen them
according to actual need, yet, to maximally 8 meters. The sectional
area of the cables should increase with the length, if the cables are
relatively long, twist them;

14 Chapter 2 Installation

E1-20010915-C-1.0

78891011AWG size

98.47.56.35.34Min sectional area (mm2)

876543Cable length meter

5. Place the battery switch to ON.



Notice

Make sure that the UPS is powered down before connecting or
replacing battery. As to 1kVA UPS, don’t reversely connect the
battery poles! During operation, the positions of the UPS and the
battery should remain unchanged, arbitrary moving is prohibited.

INPUT

EXTERNAL BATT.

OUTPUT

DRY CONTACT

RS-232

INTELLIGENT SLOT

External battery cable

Fig. 6(a) Connection of External Battery of 1kVA UPS

Chapter 2 Installation 15

E1-20010915-C-1.0

INPUT BREAKER

INPUT

EXTERNAL BATT

RS-232

DRY CONTACT

INTELLGENT SLOT

Exteranl battery cable

O
U
T
P
U
T

U
T

U

P

T

O

Fig. 6(b) Connection of External Battery of 2kVA/3kVA UPS

II. Connect UPS input cable

1. Prior to connection, make sure that the wall socket or distribution
switchboard to be connected has been reliably grounded;

2. Make sure that the input mains voltage is within tolerances;

3. Make sure that the socket capacity is correct: 1kVA UPS adopts
socket with capacity greater than 10A, 2kVA/3kVA UPS adopts
socket with capacity greater than 16A. As to 3kVA UPS, if needing
larger input current (for instance, when the mains voltage is usually
low and the UPS assumes full load), please connect the UPS to
distribution switchboard. When the load is fixed and far lower than

16 Chapter 2 Installation

E1-20010915-C-1.0

the UPS rated capacity, the socket capacity can be derated
according to the load current.

4. As shown in Fig. 7(a) and Fig. 7(b), connect the UPS input power
line to a wall socket or a distribution switchboard.



Notice

Don’t reversely connect the input neutral line and live line!

III. Connect UPS output cable

1. Please note that the max capacity of each output socket is 10A;

2. As shown in Fig. 7(a) and Fig. 7(b), directly connect the load
power line to the UPS output socket.

Chapter 2 Installation 17

E1-20010915-C-1.0

Input cable

RS-232 cable

Input

External batt

Output

INTELLIGENT SLOT

RS-232

DRY CONTACT

Output cable

User equipment

Fig. 7(a) Connection of 1kVA UPS Input/output Cables

18 Chapter 2 Installation

E1-20010915-C-1.0

INPUT BREAKER

INPUT

EXTERNAL BATT.

RS-232 DRY CONTACT

INTELLIGENT SLOT

User equipment

Input cable

Output cable

Communication cable

O
U

T

P

U

T

U

U
T

P

T

O

Fig. 7(b) Connection of 2kVA/3kVA UPS Input/output Cables

IV. Connect communication port

Use the RS-232 cable (universal type) delivered with the UPS to

connect the RS-232 port of the UPS to that of the computer. Dry
contact cable is delivered with 2kVA/3kVA UPS, use it to connect
the dry contact port of the UPS to the RS-232 port of the computer

(connect the cable end marked with “UPS” to the dry contact port, and

the end marked with “PC” to the computer), as shown in Fig. 7(a) and

Fig. 7(b).

V. For user who uses SNMP adaptor, please refer to the

documents delivered with it for its installation.

Chapter 2 Installation 19

E1-20010915-C-1.0

Chapter 3 Operation

3.1 Operation Mode

The UPS has 4 operation modes: Normal mode, Bypass mode,
Battery mode, and Fault mode.

3.1.1 Normal Mode

After the UPS is installed, press and hold the ON/SILENCE button
for 1 second, with a beep, the UPS begins to operate in Normal
mode.

When the input mains voltage and the load are within specifications,
the load is supplied by inverter, which obtains power from rectifier;
meanwhile, the charger charges the battery. When in Normal mode,
the mains indicator and inverter indicator on the front panel shine
green.



Notice

If the UPS is supplied by AC generator, please follow the
requirements below:

1. Start up the AC generator first without switching on the loads,
connect the UPS to the generator, then switch on the loads one by
one till the generator operates stably (to ensure reliable operation of
the generator, it is recommended that the UPS load be less than
30% of generator capacity).

2. It is recommended that the generator capacity be 1.5~2 times of
UPS rated capacity.

20 Chapter 3 Operation

E1-20010915-C-1.0

3.1.2 Bypass Mode

When the UPS is supplied with AC mains without being turned on,
or in the event of overload or other faults after the UPS is turned on,
the load is supplied by Bypass AC source, which comes directly
from the AC mains input; and meanwhile the charger charges the
battery. When in Bypass mode, the bypass indicator on the front
panel shines green.



Notice

In the event of mains failure or mains voltage outside the range from
120V to 253V in Bypass mode, the UPS is unable to supply the
load.

3.1.3 Battery Mode

When the UPS is in Normal mode, in the event of mains failure or
mains voltage outside tolerances, the rectifier and charger stop
running, the battery begins to discharge and supply the load through
inverter. When the UPS operates in Battery mode, the battery
indicator and inverter indicator on the front panel shine green,
accompanied with a beep every 3 seconds, giving alarm that the
UPS is operating in Battery mode.

Chapter 3 Operation 21

E1-20010915-C-1.0



Notice

1. In Battery mode, when the battery voltage is low, there is a beep
every 1 second, giving battery low voltage alarm for timely
processing.

2. Although the battery had been fully charged at factory before
despatch, the transport and storage resulted in loss of electricity
quantity, hence when using the UPS for the first time, the battery
should be charged for 8 hours, so as to ensure adequate battery
backup time.

3.1.4 Fault Mode

In the event of inverter fault, internal overtemperature or other faults
in Normal mode, the UPS transfers to Bypass mode; in the same
cases in Battery mode, the UPS shuts down and stops output. In the
event of UPS fault, the fault indicator on the front panel shines red,
the buzzer beeps (except battery and charger fault), and the
corresponding fault locating indicator flashes.

3.2 Operation

3.2.1 System Power-on

Connect the input power line as described in Section 2.2.2 (for long
backup time UPS, turn on the external battery switch at first), turn on
the input switch (in the case of 2kVA/3kVA UPS), then the system
starts up, the fan inside the rear panel begins to run, and the system
begins self-test (including battery test). After system self-test (the
buzzer beeping twice means normal startup), the system enters in
Bypass mode, the mains indicator and bypass indicator shine on the
front panel, as shown in Fig. 8(a) and Fig. 8(b):

22 Chapter 3 Operation

E1-20010915-C-1.0

FAULT BYPASSBATTERYLINE INVERT

BATTERY

LOAD

Fig. 8(a) LED Display at 1kVA UPS Power-on

OFF

ON

SILENCE

LINE

FAULT

BATTERY

BYPASS

INVERT

BATTERY

LOAD

Fig. 8(b) LED Display at 2kVA/3kVA UPS Power-on

3.2.2 Start Inverter Output

I. Start Normal mode

In normal case, user should set the UPS to Normal mode.

1. After system power-on, press and hold the ON/SILENCE button
for 1 second, then a beep is heard. Several seconds later, the

Chapter 3 Operation 23

E1-20010915-C-1.0

bypass indicator goes off and the inverter indicator shines, as shown
in Fig. 9(a) and Fig. 9(b), which means the UPS is operating in
Normal mode.

FAULT

LINE

BATTERY

BYPASS

INVERT

BATTERY

LOAD

Fig. 9(a) LED Display of 1kVA UPS in Normal Mode

OFF

ON

SILENCE

FAULT

LINE

BATTERY

BYPASS

INVERT

BATTERY LOAD

Fig. 9(b) LED Display of 2kVA/3kVA UPS in Normal Mode

24 Chapter 3 Operation

E1-20010915-C-1.0



Notice

If the previous shutdown is automatic resulting from termination of
battery discharge because of AC mains failure, the automatic
turn-on function (this function is settable through background
monitoring software and had been set at factory ) will be activated in
the event of AC mains restoration.

2. When the system begins to operate stably, gradually add loads to
the system. When adding loads, it can be observed that the shining
load indicators on the front panel increases, as shown in Fig. 10(a)
and Fig. 10(b):

FAULT

LINE

BATTERY

BYPASS

INVERT

BATTERY

LOAD

Fig. 10(a) LED Display of 1kVA UPS with Heavy Load

Chapter 3 Operation 25

E1-20010915-C-1.0

OFF

ON

SILENCE

FAULT

LINE

BATTERY

BYPASS

INVERT

BATTERY LOAD

Fig. 10(b) LED Display of 2kVA/3kVA UPS with Heavy Load

3. If all load indicators shine and the buzzer beeps every 0.5
second, it indicates that overload exists. In this case, some less
critical loads should be disconnected. Usually it is recommended the
UPS assume no more than 70% rated load so that the system
operation won’t be affected by abrupt load fluctuation and the UPS
lifetime can be extended.



Notice

If the system transfers from Normal mode to Bypass mode for 3
times within 1 hour due to overload, it will remain in Bypass mode
for 1 hour and can’t transfer back to Normal mode till the overload is
removed.

II. Start Battery mode

In the event of mains failure, user may turn on the UPS to start
Battery mode to supply the load.

26 Chapter 3 Operation

E1-20010915-C-1.0

1. Press and hold the ON/SILENCE button for about 1 second, after
a beep and system self-test, the battery indicator and inverter
indicator shine, as shown in Fig. 11(a) and Fig. 11(b), and the
buzzer beeps every 3 seconds, indicating the UPS is operating in
Battery mode.

FAULT

LINE

BATTERY

BYPASS

INVERT

BATTERY

LOAD

Fig. 11(a) LED Display of 1kVA UPS In Battery Mode

OFF

ON

SILENCE

FAULT

LINE

BATTERY

BYPASS INVERT

BATTERY LOAD

Fig. 11(b) LED Display of 2kVA/3kVA UPS in Battery Mode

Chapter 3 Operation 27

E1-20010915-C-1.0

2. The loading process is the same as described in Section “Start
Normal mode”.



Notice

In the event of overload during the loading process after starting
Battery mode, immediately disconnect some loads till the overload
alarm stops, otherwise, the system will stop output after a delay
time.

3.2.3 Battery Management

I. Battery connection test

To ensure normal battery connection, every time when the AC
mains is introduced into UPS, the UPS automatically tests the
battery connection state. In the event the battery is not connected,
reversely connected or otherwise improperly connected, the fault
indicator shines red and the battery indicator flashes, reminding user
to check the battery connection. In such case, the UPS will still
startup and operate in Normal mode, however, without battery
backup.

II. Battery test

Battery test includes automatic test, manual test, and regular test set
through background monitoring software. For the method of regular
test through background monitoring software, please see the
documents delivered with the monitoring software.

1. Automatic test

28 Chapter 3 Operation

E1-20010915-C-1.0

Every time the AC mains is introduced into UPS, the UPS
automatically tests the battery, provided that the mains voltage is
within tolerances and the load ranges between 33~100% rated load.

When in Normal mode, provided that the mains input is normal, no
overload exists, and the battery voltage is no lower than 36V
(UH11-0010(L) UPS) or 120V (UH11-0020/0030(L) UPS) or 96V
(UH11-0020(L)B UPS), manual test can be conducted by pressing
button on the front panel: press and hold the ON/SILENCE button
for 4 seconds (a beep is heard 3 times) and then relieve it. 3
seconds later, the battery test begins, the battery indicator shines,
and the buzzer beeps as in Battery mode. After battery test, the
buzzer stops beeping, the battery indicator goes off, and the
displays of the panel indicators restore to the state prior to test.
When battery fault is detected (no battery, faulty battery, or battery
reverse connection) during test, the fault indicator shines, and the
battery indicator flashes.



Notice

After battery test, the battery state information will be refreshed. In
the event battery fault that the battery is not fully charged is detected
during test, user may retest the battery after fully charging it to
confirm that the fault is removed.

3.2.4 Turn off Inverter

1. When the system has AC mains input and the AC mains is
normal, press and hold the OFF button for about 1 second, then a
beep is heard, the inverter indicator goes off, the bypass indicator
shines, and the UPS transfers to Bypass mode. The panel display is
shown in Fig. 8(a) and Fig. 8(b).

2. When the system has no AC mains input (in Battery mode), press

and hold the OFF button for about 1 second, then a beep is heard,

Chapter 3 Operation 29

E1-20010915-C-1.0

the UPS stops running. About 30 seconds later, the auxiliary supply
shuts off, all panel indicators go off, and the fan stops running.

3.2.5 System Power-off

1. After turning off the inverter, pull off the system input plug, or
place the switch of the wall socket or the distribution switchboard to
OFF, all panel indicators go off, and the fan stops running (if there is
a battery, a delay time of 30 seconds is needed before the fan
stops). Up to now, the system is powered off.

2. If the UPS is connected to external battery, place the switch of the
external battery to OFF.

3. After system power-off, the UPS has no output to supply the load.

3.3 Auto Transfer Between UPS Operation Modes

In normal case, user should set the UPS to Normal mode. When
operating in Normal mode, in the event of mains failure, the UPS
automatically transfers to Battery mode without interruption to load;
in the event of overload, the UPS automatically transfers to Bypass
mode without interruption to load; in the event of inverter fault or
internal overtemperature, the UPS operates in Fault mode.

3.3.1 Transfer to Bypass Mode in the Event of Overload

When the UPS remains overloaded for a specified time, the UPS
transfers from Normal mode to Bypass mode, and meanwhile gives
audible alarm every 0.5 second. In such case, the UPS output is
mains voltage. At this time, some loads should be disconnected until
the alarm stops and the yellow load indicator on the front panel goes
off, and 5 minutes after that, the UPS automatically transfers back to
Normal mode. To protect the load and UPS, the transfer times within
1 hour from Normal mode to Bypass mode due to overload should

30 Chapter 3 Operation

E1-20010915-C-1.0

be less than 3, otherwise, the UPS will remain in Bypass mode for 1
hour before it transfers back to Normal mode.

3.3.2 Transfer to Battery Mode in the Event of Mains Failure

In the event of mains failure, the UPS transfers to Battery mode.
when the battery is completely discharged, the UPS automatically
shuts down. When the mains restores, the UPS automatically turns
on and operates in Normal mode. This function is designed for
unattended UPS. If the UPS is manually shut down in Battery mode,
it can only be turned on to inverter manually when the mains
restores.

3.3.3 Transfer to Bypass Mode in the Event of Overtemperature

High ambient temperature and poor ventilation may result in
overtemperature inside UPS. In the event of internal
overtemperature, the UPS transfers to Bypass mode, the fault
indicator shines red, the 3rd fault locating indicator from the left
flashes, and the UPS gives audible alarm. In such case, cut off the
input AC mains (by pulling off the input plug or switching off the
circuit breaker), remove any substances blocking ventilation, or
widen the distance from wall. After the UPS cools down, supply it
with AC mains and turn it on.

3.3.4 Output Short-circuit Protection

In the event of load short-circuit, the UPS stops output, the fault
indicator shines red, the yellow fault locating indicator flashes, and
the UPS gives alarm. In such case, disconnect the concerned load,
and cut off the input power of the UPS. 10 minutes later, the UPS
automatically shuts down (or manually shut down the UPS 10
seconds later by pressing the OFF button). After removing the

Chapter 3 Operation 31

E1-20010915-C-1.0

short-circuit fault, connect the load back to the UPS, supply the UPS
with AC mains and turn it on.

3.4 UPS Monitoring

For the information on background monitoring of UPS, please see
the documents delivered with the monitoring software.

32 Chapter 3 Operation

E1-20010915-C-1.0

Chapter 4 Maintenance

Using Avansys

iTrust

series UPS in specified ambient environment

(see Section 2.2.1) can reduce maintenance.

I. Fan

The fan is expected to be able to run for 20000~40000 hours
continuously. The higher the ambient temperature, the shorter the
fan life. During system operation, please regularly check whether all
fans are operating normally and there is air blowing out from inside.

II. Battery Maintenance

The internal battery of iTrust series UPS is sealed, lead-acid,
maintenance-free battery. The battery life depends on the ambient
temperature, charge and discharge times. High ambient
temperature and deep discharge will shorten battery life.

To ensure battery life, the battery should be maintained regularly:



Keep the ambient temperature between 15

and 25 .



To prevent small current discharge, the continuous battery
discharge time should not exceed 48 hours.



When the UPS hasn’t been used for a long time, and the battery
hasn’t been charged for 3 months at specified ambient
temperature, or 2 months at high ambient temperature, please

charge it for at least 12 hours.

If the battery backup time is found greatly shortened, or when the
UPS LED indicates battery fault, please contact the distributor to

Chapter 4 Maintenance 33

E1-20010915-C-1.0

confirm whether the battery needs to be replaced. Before
replacement, please make sure that the specifications of the new
battery are correct.



Notice

1. Never short-circuit the battery terminals, which will result in fire.

2. Never open the battery, as the electrolyte is harmful to human
body. In the event of inadvertent contact of electrolyte, immediately
rinse it off and go to hospital for a check.

III. Keep Air Vent Unblocked

1. Regularly clean the system, especially the air inlet and air outlet.
Make sure the air flows freely inside the chassis. Use dust collector
for cleaning when necessary.

2. Check the air vents on the front, rear, and side panels, make sure
they are not blocked.

3. The 2kVA/3kVA long backup time UPS has high capacity rectifier
fan at the bottom of the chassis, make sure that the air vent at the
bottom of the chassis is not blocked.

IV. UPS State Check

1. Check whether the UPS is faulty: is the fault indicator shining? Is
fault alarm being given?

2. Is the UPS operating in Bypass mode: in normal case, the UPS
operates in Normal mode; if it is operating in Bypass mode, please
find out the reason, for instance: operator intervention, overload,
internal fault, etc.

3. Is the battery discharging: when the AC mains is normal, the
battery shouldn’t discharge; if the UPS is operating in Battery mode,

34 Chapter 4 Maintenance

E1-20010915-C-1.0

please find out the reason, for instance: mains failure, battery test,
operator intervention, etc.

V. Function Inspection

It is recommended to inspect the UPS functions once half year.

1. Press the OFF button, check whether the buzzer and LED
indications are normal (see Section 3.1 Operation Mode). Please
do this after confirming that the AC mains is normal and data
backup has been done.

2. Press the ON/SILENCE button, check again whether the LED
indications are normal and the UPS transfers to Normal mode.

3. When the inverter is in Normal mode (the inverter indicator
shines), press and hold the ON/SILENCE button for 4 seconds to
start battery test. Should any battery problem be found, immediately
find out the problem and solve it.

Chapter 4 Maintenance 35

E1-20010915-C-1.0

Chapter 5 Troubleshooting

In the event of UPS fault, please check it and remove the fault in the
first instance following the methods described in the table below. If
the fault still exists, please contact the distributor, we’ll help you out
of trouble in the shortest time.

If the UPS is operating in
Battery mode, please note
the battery backup time.

The mains voltage is
outside tolerances.

The mains indicator flashes.5

A. Pressing and holding the
ON button for more than 1
second;
B. Turn on the UPS again
after disconnecting all loads.

A. The button holding
time is too short;
B. overload.

After pressing the ON
button, the UPS does not
start up.

4

Make sure that the output
power line is properly
connected.

The output power line
is not properly
connected.

No alarm is given, but there
is no voltage output.

3

A. Make sure the input
switch of the 2KVA/3KVA
UPS is turned on;
B. Make sure that the input
power line is properly
connected;
C. Check whether the input
fuse of the 1KVA UPS is
broken. There is a standby
fuse in the input power
socket.

A. The input switch is
turned off (2kVA/3kVA

UPS);
B. The input power
line is not properly
connected;
C. The input fuse is
broken. (1kVA UPS)

The AC mains is normal, but
the mains indicator does not
shine and the UPS operates
in Battery mode.

2

Use voltmeter to check
whether the input mains
voltage is within tolerances.

A. AC mains hasn’t
been introduced into
the system;
B. Input undervoltage.

No panel display and
system self-test when the
mains input switch is in the
ON position.

1

ActionPossible CauseAlarm or Condition

Serial

No.

36 Chapter 5 Troubleshooting

E1-20010915-C-1.0

A. Remove the substances
blocking the vent, or widen
the distance from the wall,
restart the UPS after it cools
down.
B. Check whether the rear
panel fan is blocked from
running or damaged (the fan

stops running).

Internal
overtemperature

The buzzer beeps, the fault
indicator shines, and the 3rd
fault locating indicator from
the left flashes.

9

A. Allow the battery to
charge for more than 8
hours when the AC mains is
normal, and then re-test the
discharge time;
B. The battery needs
replacement, please contact
the distributor.

A. The battery is not
fully charged;
B. The battery is not
able to hold a full
charge due to age.

The UPS has reduced
battery time.

8

A. Check whether the
external battery switch is
turned on and its lead is
properly connected;
B. Check whether the
battery is reversely
connected;
C. Contact the distributor for
battery replacement;
D. Contact the distributor for
replacement/maintenance of
charger.

A. The external

battery switch is

turned off, or its lead

is not properly

connected;

B. Battery reverse

connection;

C. Battery damaged;

D. Charger fault.

The fault indicator shines

and the battery indicator

flashes.

7

Disconnect some loads from
the UPS.

Overload.

All load indicators shine,

and the buzzer beeps every

0.5 second.

6

ActionPossible CauseAlarm or Condition

Serial

No.

Chapter 5 Troubleshooting 37

E1-20010915-C-1.0

Turn off the UPS and cut off
the power input immediately,
contact the distributor for
help.

UPS internal fault

Abnormal noise or smell
inside the UPS.

12

The UPS needs
maintenance, please contact
the distributor.

UPS internal fault

The buzzer beeps, the fault
indicator shines, and the
1st, 4th fault locating
indicator from the left or the
inverter indicator flashes.

11

Restart the UPS after
confirming that load
short-circuit does not exist.

UPS output
short-circuit.

The buzzer beeps, the fault
indicator shines, and the 5th
fault locating indicator from
the left flashes.

10

ActionPossible CauseAlarm or Condition

Serial

No.

When reporting UPS fault to our company or the distributor, please
inform the machine model and machine No.

(the bar code on the rear

panel of the UPS

).

38 Chapter 5 Troubleshooting

E1-20010915-C-1.0

Chapter 6 Service and Support

Avansys Power Co., Ltd. provides customer with satisfactory
technical support. To obtain support, please contact the distributor in
the first instance. When failing to reach the distributor, please
contact your local technical support center or the company
headquarters:

1. User can obtain service through dialing our free toll telephone.

Free toll: 800-8302118

2. Web site technical service

User can seek technical support by visiting our technical support
web site.

Technical support web site of Avansys Power Co., Ltd.:

http://www.avansys.com

To facilitate user, we also have special UPS service mailboxes:

[e-mail]

[e-mail]

3. We provide 3 years of free service for our 1k/2k/3kVA UPS
(including the internal battery), provided that they are used properly.

The above warranty shall not apply in the following circumstances:



The battery is provided by user;



Damage resulting from operation not in accordance with the
user manual;



Damage as a result of fire, flood, etc.;



Damage caused by transport, move or neglect after purchase;

Chapter 6 After-sales Service 39

E1-20010915-C-1.0



Damage caused by power supply not in accordance with
relevant electrical regulations or operation in ambient
environment not in compliance with requirements;

For detailed information on warranty, please see the warranty items.

4. Different levels of customized service packages are available with
reasonable charge, including responsive, preventive maintenance,
warranty period extension, etc. For detailed information, please
contact the distributor or the local technical support center.

40 Chapter 6 After-sales Service

E1-20010915-C-1.0

Appendix 1 Communication Port

RS-232 Communication Mode

Port description male)

NC

RXD

TXD

NC

NC
NC
NC
NC

1
2
3
4
5

6
7
8
9

GND

Pin 2: receiving terminal;

Pin 3: transmitting terminal;

Pin 5: common;

Other pins: unconnected.

Connection relationship between RS-232 port of computer and

RS-232 port of UPS

Computer --------------------- UPS
RDX

pin 2

<------------------- TX

pin 3

TDX

pin 3

--------------------> RX

pin 2

GND

pin 5

--------------------- GND

pin 5

RS-232 communication mode provides the following functions:



Monitor the current power supply state of UPS;



Monitor the current alarm information of UPS;



Monitor the current running parameters of UPS;



Time the ON/OFF control of the UPS, and set system
parameters.

Appendix 1 Communication Port 41

E1-20010915-C-1.0

RS-232 communication data format

Baud rate ---------- 4800bps
Byte length ---------- 8bit
Stop bit ---------- 1bit
Parity check ---------- none

Dry Contact Communication Mode

Port description

NC

NC

GND

BATTERY LOW

OFF
GND

NC
NC

1

2
3
4

5

6
7
8
9

MAINS FAILURE

Pin 2: this pin turns from OPEN to CLOSE in the event of mains failure, its

normal state is OPEN;

Pin 5: this pin turns from OPEN to CLOSE in the event of battery low voltage, its

normal state is OPEN;

Pin 6: when applying +5V voltage for more than 1 second, the UPS is turned off;

Pin 4: signal ground;

Pin 7: signal ground;

Other pins: unconnected.

Dry contact communication mode provides the following

functions:



Provide mains fault information in the event of mains failure;



Provide battery low voltage information when the battery
discharge is about to terminate;



Provide OFF control of UPS.

42 Appendix 1 Communication Port

E1-20010915-C-1.0

Appendix 2 Grounding & Lightning Protection

The grounding and lightning protection of low voltage power supply
system is a systematic engineering, of which the grounding and
lightning protection of UPS is only a part. According to relevant
international, domestic and industry standards, lightning protection
measures should be taken at the primary and secondary sides of
the AC power transformer before the power line is introduced into
the UPS machine room, and there are stringent requirements on the
length and grounding mode of the low voltage power cable
introduced into the UPS machine room, on the lightning protection,
shielding, and lightning protection ground cable of the UPS machine
room.

To ensure human safety, the UPS must be reliably grounded prior to
use, i.e., the UPS protective ground (the metal case of the UPS)
must be reliably connected to the ground bar in the machine room
by connecting the ground pin of the UPS input plug to the machine
room ground bar. In addition, the mains frequency ground
resistance of the machine room ground bar should be in compliance
with relevant standards, normally less than 5 ohms.

To ensure that the ground cable inside the UPS is reliably and
safely connected, the iTrust UPS had undergone stringent internal
ground resistance test at factory before despatch.

The iTrust UPS provides perfect lightning protection. All lightning
protection elements are made by world known manufacturer or
military standard products, and the SPD (surge protection device) is
designed and installed in strict accordance with the IEC standard.
After other lightning protection actions of low voltage power supply
system stated above are taken in compliance with requirements, the

Appendix 2 Grounding & Lightning Protection 43

E1-20010915-C-1.0

harm that the lightning strike may do to the UPS machine room is
minimized.

Classified by the different throughput capacity and installation place,
usually the UPS system has no more than 2 levels of lightning
protection. The first level lightning protection adopts C-class SPD (

or

-class) with a max throughput capacity of 40kA, waveform 8/20 s,
installed between the UPS and the AC distributor; the second level
lightning protection adopts D-class SPD

(or -class

) with a max

throughput capacity of 8kA, waveform 8/20

s, installed inside the
UPS. Standard D-class SPD is installed inside the iTrust UPS, and
the SPD24SZ C-class SPD produced by Avansys is recommended.
User may decide whether to select C-class SPD according to the
actual situation of the machine room. Whichever brand C-class SPD
is selected, the connection method shown in the following figure
must be adopted between the C-class SPD and the UPS, i.e., the
protective ground (the UPS metal case) and the C-class lightning
protection ground of the UPS share the same ground, and are then
connected to the ground bar in the machine room.

44 Appendix 2 Grounding & Lightning Protection

E1-20010915-C-1.0

wiring

diagram

User

UPS

Protective

ground

Ground

bar

1. Fixation hole 2. Air breaker 3. Integrated lightning protection element

4. Ground copper bar

C-class lightning protection ground

Fig. 1 Connection of SPD24SZ SPD

Notes:

1. It is recommended to use copper core cable with sectional area
between 6

25mm² as the live line (L) and neutral line (N) of the
SPD24SZ SPD, and copper core cable with sectional area 10mm²
(minimally 6mm²) as the protective ground cable (PE line). For
detailed installation, please refer to relevant specifications by
Avansys.

2. According to test result, the length of the connection cable
between the C-class SPD box and the UPS is required to be within
5

10m, and it must be ensured that this cable will not suffer
lightning strike. Too short cable length will affect the lightning
protection effect.

3. In applications with high lightning strike hazard, it is
recommended to install B-class

(or -class SPD

at 12m or even

Appendix 2 Grounding & Lightning Protection 45

E1-20010915-C-1.0

further before the C-class SPD. User may buy and install the
B-class SPD by itself under the technical guidance of Avansys.

46 Appendix 2 Grounding & Lightning Protection

E1-20010915-C-1.0

Appendix 3 Technical Specifications

87%Efficiency

120~253VacBypass voltage

105~125% rated load, 5min; 125~150% rated load, 10s

Inverter overload

capacity

≤

60mS

Transient

recovery time

5% at 100% load step change resistive load

Dynamic

response

≤

3% linear load

≤

5% nonlinear load

Voltage harmonic

distortion

3:1Crest factor

0.7Power factor

≤

1Hz/s

Frequency

synchronization

speed

Synchronizes with the mains frequency when the mains is
working; 50Hz

0.2% when in Battery mode.

Frequency

220Vac±2%Voltage

3kVA/2.1kW2kVA/1.4kW1kVA/700WPower rating

Output

≥

0.99Power factor

50Hz±5HzFrequency

160-276Vac: 100% rated load; 120-160Vac: linear derating in
loading; 120Vac: 50% rated load

Voltage range

220VacRated voltage

Input

UH11-0030LUH11-0020LUH11-0020LBUH11-0010L

UH11-0030UH11-0020UH11-0020BUH11-0010

Model

Appendix 3 Technical Specifications 47

E1-20010915-C-1.0

IP21

Protection class

IEC60664-1-IV, 6kV/3kA hybrid wave for 1.2/50µS+8/20µS

Surge protection

Conduction: EN50091-2, EN55022 Class B;
Emission: EN50091-2, EN55022 Class A;
Harmonic current: EN61000-3-2;
Immunity: EN61000-4-2.3.4.6.8.11 Level III,
EN61000-4-5 Level IV

EMC

CCEE GB4943-1995Safety

LEDDisplay

≤

45dB

≤

40dB

Audible noise (1m)

≤

5msInverter↔Bypass

0

Normal ↔Battery

Transfer

time

5A, expandable in parallel to
9A (external charger is
needed when battery

capacity ≥200Ah)

6A7A

Charge current

long backup

time UPS

8 hours to 90% rated capacity

Recharge time

standard UPS

8min10min8min6min

Backup time at

full load

standard UPS

120Vdc96Vdc36VdcRated voltage

1083

Internal cell

number

Sealed, lead-acid, maintenance-free battery 12V/7Ah

Type

Battery

UH11-0030LUH11-0020LUH11-0020LBUH11-0010L

UH11-0030UH11-0020UH11-0020BUH11-0010

Model

48 Appendix 3 Technical Specifications

E1-20010915-C-1.0

2121208

Long backup

time UPS (kg)

45454014

Standard UPS

(kg)

Weight

210 400

530

210 400

530

210 400 530

160 260

420

W H D (mm)Size

<1500m, derating in accordance with GB/T3859.2 when it is

higher than 1500m

Elevation

5% 95%, non-condensing

Relative humidity

40°C +70°C (without battery)

20°C +55°C (with battery)

Storage

temperature

0°C +40°C

Operating

temperature

Environ
mental
condition

UH11-0030LUH11-0020LUH11-0020LBUH11-0010L

UH11-0030UH11-0020UH11-0020BUH11-0010

Model

Appendix 3 Technical Specifications 49

E1-20010915-C-1.0

Appendix 4 Optional Component

Avansys iTrust series UPS provides the following optional components:

C-class SPDSPD-24SSPD

Max charge current 4A, for
battery consisting of 10
12V cells in series.

UH-BCH120/4Charger

10 100Ah cellsUF-B0030-100

10 65Ah cells UF-B0030-65

10 38Ah cellsUF-B0030-38

8 100Ah cellsUF-B0020B-100

8 65Ah cellsUF-B0020B-65

8 38Ah cellsUF-B0020B-38

8 24Ah cellsUF-B0020B-24

3 100Ah cellsUF-B0010-100

3 65Ah cellsUF-B0010-65

3 38Ah cellsUF-B0010-38

Battery cubicle

UF-SNMP110-WEBWEB/SNMP AGENT

UF-WIN100NNetwork software

UF-SNMP110SNMP adaptor

RemarkModelProduct

50 Appendix 4 Optional Component

E1-20010915-C-1.0