PowerWalker VFI 1000T LCD User Manual

Online UPS

PowerWalker VFI 1000T LCD
PowerWalker VFI 2000T LCD
PowerWalker VFI 3000T LCD

Manual (EN)

Uninterruptible Power Supply System

-1-

CONTENT

1. Safety and EMC Instructions .............................................................. 1

1.1 Installation ......................................................................................... 1

1.2 Operation .......................................................................................... 2

1.3 Maintenance, servicing and faults .................................................... 3

1.4 Transport ........................................................................................... 4

1.5 Storage ............................................................................................. 4

1.6 Standards .......................................................................................... 5

2. Description of Commonly Used Symbols ......................................... 6

3. Introduction .......................................................................................... 7

4. Panel Description ................................................................................. 8

5. Connection and Operation ................................................................ 12

5.1 Inspection ....................................................................................... 12

5.2 Connection...................................................................................... 12

5.3 Battery charge ................................................................................ 14

5.4 Turn on the UPS ............................................................................. 15

5.5 Test function .................................................................................... 15

5.6 Turn off the UPS ............................................................................. 15

5.7 Audible alarm mute function ........................................................... 16

5.8 Operation procedure of external battery for long backup time model

(“L” model) ....................................................................................... 16

6. Operating Mode for All Models ......................................................... 18

6.1 Line mode ....................................................................................... 18

6.2 Battery mode .................................................................................. 19

6.3 Bypass mode .................................................................................. 20

6.4 NO output mode ............................................................................. 21

6.5 EPO (Emergency Power Off) ......................................................... 22

6.6 ECO mode (Economy mode) ......................................................... 22

6.7 Converter mode .............................................................................. 22

6.8 Abnormal mode .............................................................................. 23

7. Setting by LCD Module ...................................................................... 24

8. Trouble Shooting ................................................................................ 27

9. Maintenance ........................................................................................ 31

9.1 Operation ........................................................................................ 31

9.2 Storage ........................................................................................... 31

9.3 Battery Replace .............................................................................. 31

10. Technical Data .................................................................................. 32

10.1 Electrical specifications ................................................................ 32

10.2 Operating Environment ................................................................ 33

10.3 Typical backup time (Typical values at 25°C in minutes:) ................ 33

10.4 Dimensions and weights .............................................................. 33

11. Communication Port ........................................................................ 34

11.1 USB ............................................................................................... 34

11.2 RS232 Interface(Option) ............................................................... 34

11.3 AS400 Interface (Option) .............................................................. 34

12. Software ............................................................................................ 36

Appendix: Rear panel ............................................................................ 36

1. Safety and EMC Instructions

Please read carefully the following user manual and the
safety instructions before installing the unit or using the
unit!

1.1 Installation

★ See installation instructions before connecting to the supply.
★ Condensation may occur if the UPS is moved directly from a cold

to a warm environment. The UPS must be absolutely dry before
being installed. Please allow an acclimatization time of at least
two hours.

★ Do not install the UPS near water or in damp environment.
★ Do not install the UPS where it would be exposed to direct

sunlight or near heat.

★ Do not connect appliances or items of equipment which would

overload the UPS (e.g. laser printers, etc) to the UPS output.

★ Place cables in such a way that no one can step on or trip over

them.

★ Assure to connect with the earth reliably.
★ Assure external battery source must be earthed.
★ Connect the UPS only to an earthed shockproof socket outlet.
★ The building wiring socket outlet (shockproof socket outlet) must

be easily accessible to close to the UPS.

★ With the installation of the equipment, the sum of the leakage

current of the UPS and the connected load does not exceed

3.5mA.

★ Do not block ventilation openings in the UPS’s housing. Ensure

the air vents on the front, side and rear of the UPS are not
blocked. Allow at least 25cm of space on each side.

1

★ UPS has provided earthed terminal, in the final installed system

configuration, equipotential earth bonding to the external UPS
battery cabinets.

★ An appropriate disconnect device as short-circuit backup

protection should be provided in the building wiring installation.
Please see the disconnect device specification in chapter 5.2.

★ Equipment the powered more than one source.

1.2 Operation

★ Do not disconnect the mains cable on the UPS or the building

wiring socket (grounded shockproof socket) during operation as
this would remove the ground to the UPS and of all connected
loads.

★ The UPS features its own, internal current source (batteries). You

may be electric shock when you touch the UPS output sockets or
output terminal block even if the UPS is not connected to the
building wiring socket.

★ In order to fully disconnect the UPS, first press the OFF button to

turn off the UPS, then disconnect the mains lead.

2

★ Ensure that no liquid or other foreign objects can enter the UPS.
★ Do not remove the enclosure. This system is to be serviced by

qualified service personnel only.

★ Remove the protective panel only after disconnecting the terminal

connections.

★ Use No. 12AWG (for 3K/KS output terminal), 90℃ copper wire

and 12 lb-in Torque force when connecting to terminal block.

★ Use No. 12 AWG (for 3KS input wire), 90℃ copper wire and

4.4 lb-in Torque force when connecting to terminal block.

1.3 Maintenance, servicing and faults

★ The UPS operates with hazardous voltages. Repairs may be

carried out only by qualified maintenance personnel.

★ Caution - risk of electric shock. Even after the unit is

disconnected from the mains power supply (building wiring
socket), components inside the UPS are still connected to the
battery which are potentially dangerous.

★ Before carrying out any kind of service and/or maintenance,

disconnect the batteries. Verify that no current is present and no
hazardous voltage exists in the capacitor or BUS capacitor
terminals.

★ Batteries must be replaced only by qualified personnel.
★ Caution - risk of electric shock. The battery circuit is not isolated

from the input voltage. Hazardous voltages may occur between
the battery terminals and the ground. Verify that no voltage is
present before servicing!

★ Batteries have a high short-circuit current and pose a risk of

shock. Take all precautionary measures specified below and
any other measures necessary when working with batteries:

－ remove all jewellery, wristwatches, rings and other metal

objects

3

－ use only tools with insulated grips and handles.

★ When changing batteries, replace with the same quantity and the

same type of batteries.

★ Do not attempt to dispose of batteries by burning them. It could

cause explosion.

★ Do not open or destroy batteries. Effluent electrolyte can cause

injury to the skin and eyes. It may be toxic.

★ Please replace the fuse only by a fuse of the same type and of

the same amperage in order to avoid fire hazards.

★ Do not dismantle the UPS, except the qualified maintenance

personnel.

1.4 Transport

★★★★

Please transport the UPS only in the original packaging (to

protect against shock and impact).

1.5 Storage

★ The UPS must be stockpiled in the room where it is ventilated

and dry.

4

1.6 Standards

* Safety

IEC/EN 62040-1

* EMI

Conducted Emission................................:IEC/EN 62040-2 Category C1

Radiated Emission...................................:IEC/EN 62040-2 Category C1

Harmonic Current.................................:IEC/EN 61000-3-2

Voltage Fluctuation and Flicker............:IEC/EN 61000-3-3

*EMS

ESD......................................................:IEC/EN 61000-4-2 Level 4

RS.........................................................:IEC/EN 61000-4-3 Level 3

EFT........................................................:IEC/EN 61000-4-4 Level 4

SURGE..................................................:IEC/EN 61000-4-5 Level 4

CS………………………………….……...:IEC/EN 61000-4-6 Level 3
MS………………………………………..: IEC/EN 61000-4-8 Level 3
Voltaje Dips………………………...…...: IEC/EN 61000-4-11

Low Frequency Signals..........................:IEC/EN 61000-2-2

5

2. Description of Commonly Used Symbols

Some or all of the following symbols may be used in this manual. It is
advisable to familiarize yourself with them and understand their
meaning:

6

3. Introduction

This On-Line-Series is an uninterruptible power supply incorporating
double-converter technology. It provides perfect protection specifically
for Novell, Windows NT and UNIX servers.

The double-converter principle eliminates all mains power disturbances.
A rectifier converts the alternating current from the socket outlet to direct
current. This direct current charges the batteries and powers the
inverter. On the basis of this DC voltage, the inverter generates a
sinusoidal AC voltage, which permanently supplies the loads.

Computers and periphery are thus powered entirely by the mains
voltage. In the event of power failure, the maintenance-free batteries
power the inverter.

This manual covers the UPS listed as follows. Please confirm whether it
is the model you intend to purchase by performing a visual inspection of
the Model No. on the rear panel of the UPS.

Model No. Type Model No. Type

PowerWalker

VFI 1000T LCD

PowerWalker

VFI 2000T LCD

PowerWalker

VFI 3000T LCD

“L” Model: Extended backup time

Standard

PowerWalker VFI

1000T LCD L

PowerWalker VFI

2000T LCD L

PowerWalker VFI

3000T LCD L

Extended

backup time

7

4. Panel Description

The Display Panel

Switch Function

Turn on UPS system:
By pressing the ON-Button “I” the UPS system is turned

on.
Deactivate acoustic alarm:

ON-Button

OFF-Button

Select-Button

Enter-Button

8

By pressing this Button an acoustic alarm can be
deactivated in the battery mode.

Do the battery test:
By pressing this Button the UPS can do the battery test

in the Line mode or ECO mode or Converter mode.
When mains power is normal, the UPS system switches

to No output or Bypass mode by pressing OFF-Button
“ “, and the inverter is off. At this moment, if Bypass is
enabled, then the output sockets are supplied with
voltage via the bypass if the mains power is available.

Deactivate acoustic alarm:
By pressing this Button an acoustic alarm can be

deactivated in the bypass mode.
If the UPS system is No output or Bypass mode, the

output voltage and frequency and Bypass
disable/enable and operating mode could be selected by
pressing Select-Button, and confirmed by pressing
Enter-Button.

Display Function

Input Information

The LCD Display

Indicates the input Line voltage value, which could
be displayed from 0 to 999Vac

Indicates the frequency value of input Line
voltage, which could be displayed from 0 to 99Hz

Indicates the input Line voltage is higher than the
SPEC range, and the UPS would be working in
Battery mode

Indicates the input Line voltage is lower than the
SPEC range, and the UPS would be working in
Battery mode

Output Information

Load Information

Indicates the UPS output voltage value, which
could be displayed from 0 to 999Vac

Indicates the frequency value of the UPS output
voltage, which could be displayed from 0 to 99Hz

Indicates the load percent in Watt or VA, only the
maximum value of them could be displayed from 0
to 199%

Indicates the load or the UPS output is short and
the UPS would shut down

9

Battery Information

Indicates the load is over the SPEC range

Indicates the battery voltage value, which could
be displayed from 0 to 999Vdc

Indicates the battery capacitance percent, which
could be displayed from 0 to 199%

Indicates the battery is over charged, and the
UPS would be switched to Battery mode

Indicates the battery is weak, and the UPS would
shut down soon

Mode/Fault/Warning code Information

Indicates the operating mode of the UPS, Mode
code or Fault code or Warning code could be
displayed, and the codes are illuminated in detail
in the following chapter

Inverter operating Information

Indicates the circuit of the inverter is working

Bypass operating Information

Indicates the circuit of Bypass is working

Output voltage and frequency and Bypass disable/enable
selection Information

10

The four value of the output voltage could be
selected when the UPS is in No output or Bypass
mode, and only one of them could be active in the
same time

The two frequency value of the output voltage
could be selected when the UPS is in No output or
Bypass mode, and only one of them could be
active in the same time

Bypass disable or enable could be selected when
the UPS is in No output or Bypass mode, and only
one of them could be active in the same time

(1) Here would become , , instead when the user

does operating mode of UPS setting.
“UPS” means the setting of normal inverter mode (Line mode).
“ECO” means the setting of economy mode.
“CVF” means the setting of converter mode.

The detail illustration of the three modes and the operation of the

setting would be presented in the following section.

11

amperage of your incoming feeder

.

5. Connection and Operation

The system may be installed and wired only by qualified
electricians in accordance with applicable safety regulations!

When installing the electrical wiring, please note the nominal

5.1 Inspection:

Inspect the packaging carton and its contents for damage. Please
inform the transport agency immediately should you find signs of
damage.
Please keep the packaging in a safe place for future use.

Note: Please ensure that the incoming feeder is isolated and
secured to prevent it from being switched back on again.

5.2 Connection:

(1) UPS Input Connection

If the UPS is connected via the power cord, please use a proper
socket with protection against electric current, and pay attention to
the capacity of the socket: over 9A for PowerWalker VFI 1000T
LCD (L), over 17A for PowerWalker VFI 2000T LCD (L), over 26A
for PowerWalker VFI 3000T LCD (L). If the UPS is connected via
wires, it is recommended to select the 2.5mm2 wire, and the
“GND” terminal should be grounded first by using the green/yellow
wire. The wiring is shown as the following.
The UPS System has an input breaker on the cabinet. But we still
recommend users to connect an external breakers or protective
components to the input terminals. It is recommended to select the
NFB (Non-Fuse Breaker) instead of the traditional combination kit
including breaker and fuse.

12

When selecting the NFB, the user can refer to below table for
detailed information when installation.

Model No.

UPS INPUT NFB

VOLTAGE CURRENT
PowerWalker VFI 1000T LCD (L) 300Vac 10A
PowerWalker VFI 2000T LCD (L) 300Vac 20A
PowerWalker VFI 3000T LCD (L) 300Vac 32A

(2) UPS Output Connection

The output of the UPS is IEC socket-types. Simply plug the load
power cord to the output sockets to complete connection. Use one
cord for every 5A load.

Model No. Output Socket (pcs)

PowerWalker VFI 1000T LCD (L)
PowerWalker VFI 2000T LCD (L)
PowerWalker VFI 3000T LCD (L)

4 IEC type+Terminal block

3 IEC type
6 IEC type

The wiring configuration is shown
as the following procedure:

a) Remove the small cover of the

terminal block

b) Use 2.5mm2 wires for wiring

configuration

c) Upon completion of the wiring

configuration, please check
whether the wires are securely affixed

Connection diagram

d) Put the small cover back to the rear panel

Caution!

Do not connect equipment which would overload the UPS
system (e.g. laser printers)

13

(3) EPO Connection:

User can select the polarity of EPO, EPO is Normally open as
default setting.

● Normally open
Normally the EPO connector is open on the rear panel. Once
the connector is closed with a wire, the UPS would stop the
output until the EPO status is disabled.

Disable the EPO status Enable the EPO status

● Normally close
Normally the EPO connector is closed with a wire on the rear
panel. Once the connector is open, the UPS would stop the
output until the EPO status is disabled

Enable the EPO status Disable the EPO status

5.3 Battery charge:

Fully charge the batteries of the UPS system by leaving the UPS
system connected to the mains for 1-2 hours. You may use the UPS
system directly without charging it but the stored energy time may be
shorter than the nominal value specified.

14

5.4 Turn on the UPS:

(1) With utility power connecting:

Press “I” button continuously for more than 1 second to turn on the
UPS, the UPS will get into the inverter mode, the LCD screen will
indicate the state of the UPS.

(2) Without utility power connecting:

If UPS is cold start without utility power connecting, user need to
push “I”button twice, first pushing “I” button is for UPS to get power,
and second pushing “I” button continuously for more than 1
second is for UPS to turns on, the UPS will get into the inverter
mode.In fact, the two pushing “I” button is to make further sure
user operation for turning on UPS, the LCD screen will indicate the
state of the UPS.

Note: The default setting for bypass mode is no output after
UPS is connecting utility power and breaker is turned on. This
can be configured by monitoring the LCD panel or firmware.

5.5 Test function:

Test the function of the UPS system by pressing the On-Switch “I” for
more than 1 second, the UPS would detect whether the battery is
connected or the battery is low. And the UPS could also do the test
automatically and periodically, the period time could be set by user.

5.6 Turn off the UPS:

(1) In Inverter Mode:

Press “ “ button continuously for more than 1 second to turn off
the UPS, the UPS will get into no output or bypass mode. At this
time, the UPS might has output if bypass is enabled. Disconnect
the utility power to turn off the output.

(2) In Battery Mode:

Press “
the UPS, the UPS will be turned off completely.

“ button continuously for more than 1 second to turn off

15

5.7 Audible alarm mute function:

If the alarm is too annoying in battery mode, you may press “I” button
continuously for more than 1 second to clear it. Moreover, the alarm
will be enabled when the battery is low to remind you to shutdown the
load soon.

If the alarm is too annoying in bypass mode, you may press “ “button
continuously for more than 1 second to clear it. The action doesn’t
affect the warning and fault alarm.

5.8 Operation procedure of external battery for long backup
time model (“L” model)

(1) Use the battery pack with voltage: 36VDC for PowerWalker VFI

1000T LCD L (3 pcs of 12V batteries), 96VDC for PowerWalker
VFI 2000T LCD L/ PowerWalker VFI 3000T LCD L (8 pcs of 12V
batteries). Connection of batteries more than or less than
required will cause abnormality or permanent damage.

(2) One hard wiring type battery terminal on the rear panel is used for

connecting the battery pack.

(3) The battery connection procedure is very important. Any

incompliance may result in the risk of electric shock. Therefore,
the following steps must be strictly complied with.

(4) Make sure the mains input is cut off, if there is a battery breaker

then turn it off first.

(5) Remove the small cover of terminal block, prepare the battery

cable which should be able to carry the current of >30A for 1000T
L, >22A for 2000T L, >33A for 3000T L, the cross section area
should be great than 4 mm2 for all model. And battery wire color is
recommended as following:

＋

＋

＋＋

Red wire Green/Yellow wire Black wire

16

GND

－－－－

(6) The red wire is connected to the "+" terminal of the battery. The

black wire is connected to the "-" terminal of the battery. (Note:
the green/yellow wire is grounded for protection purpose.)

(7) Make sure the wires are fasten, install the terminal block cover on

the rear panel of the UPS.

(8) Connect the UPS to the load. Then, turn on the mains switch or

connect the power cord of the UPS to utility power supply, the
battery would start to be charged.

The Caution!

A DC breaker must be connected between the UPS and
external battery.

The Caution!

The output sockets of the UPS system may still be electrically
live even if the power supply system has been disconnected or
the Bypass switch is on “OFF” position.

Model No.

VOLTAGE CURRENT

PowerWalker VFI 1000T LCD L 48Vac 50A
PowerWalker VFI 2000T LCD L 125Vdc 40A
PowerWalker VFI 3000T LCD L 125Vdc 60A

DC breaker

17

6. Operating Mode for All Models

The different codes could be displayed on the LCD screen
corresponding to their own operating modes, and they are illustrated
as the following table. At any time, only one normal operating mode
or fault mode is presented. But the warning, even several warnings
could appear in a certain normal operating mode at one time. And
the normal operating mode code and the warning code would be
shown circularly. Once one fault is come forth, then all previous
warnings would not be shown again but only the fault code is
presented.

Normal operating mode Code

No output mode 0
Bypass mode 1
Line mode 2
Battery mode 3
Battery test mode 4
ECO mode 5
Converter mode 6

6.1 Line mode

The LCD display in Line mode is shown in the following diagram. The
information about the utility power, the battery, the UPS output and
the load could be displayed. The “MODE” and “2” code indicate the
UPS is working in Line mode.

18

■

■ The Line mode

■■

If output overloaded, the load percent is shown and alarm will keep
twice every second. You should get rid of some unnecessary loads
one by one to decrease the loads connected to the UPS less than
90% of its nominal power capacity.

Note: Please follow the following steps to connect the generator：

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

supplying power of the generator to the UPS (be sure that the UPS
is in idle mode). Then turn on the UPS according to the start-up
procedure. After the UPS is turned on, then the loads can be
connected to the UPS one by one.

●

The power capacity of the AC generator should be at least twice of

the UPS capacity.

6.2 Battery mode

The LCD display in battery mode is shown in the following diagram.
The information about the utility power, the battery, the UPS output
and the load could be displayed. The “MODE” and “3” code indicate
the UPS is working in the battery mode.

19

(1) When the UPS is running in battery mode, the buzzer beeps once

every 4 seconds. If the “ON” button on the front panel is pressed
for more than 1 second again, the buzzer will stop beeping (in
silence mode). Press the “ON” button once again for more than 1
second to resume the alarm function.

2) If the UPS is working in battery mode for the input line voltage is
higher than the SPEC range, the alarm symbol - “H” will be shown;
if the UPS is working in battery mode for the input line voltage is
lower than the SPEC range, the alarm symbol - “L” will be shown;
if the input line voltage is lost, the alarm symbol - “L” would be
shown.

■■■■

The Battery mode

6.3 Bypass mode

The LCD display in bypass mode is shown in the following diagram.
The information about the utility power, the battery, the UPS output
and the load could be displayed. The UPS will beep once every 2
minutes in bypass mode. The “MODE” and “1” code indicate the UPS
is working in the bypass mode.

20

■■■■

The Bypass mode

The UPS does not have the backup function when it is in bypass
mode. The power used by the load is supplied from the utility power
via internal filter.

6.4 NO output mode

The LCD display in No output mode is shown in the following
diagram. The information about the utility power, the battery, the UPS
output and the load could be displayed. The “0” code indicates the
UPS is working in the No output mode.

■■■■

The No output mode

21

6.5 EPO (Emergency Power Off)

It is also called RPO (Remote Power Off). On LCD display, the mode
code is “0”, the word of “EPO” are presented in the position of output
voltage.
It is a special status in which the UPS would shut the output off and
alarm. The UPS could not be turned off by pressing “OFF” button on
the panel, only after releasing EPO status by turning off the EPO
switch.

6.6 ECO mode (Economy mode)

It is also called high efficiency mode. In ECO mode, on LCD display,
the mode code is “5”.
After the UPS is turned on, the power used by the load is supplied
from the utility power via internal filter while the utility power is in
normal range, so the high efficiency could be gained in the ECO
mode. Once the mains is loss or abnormal, the UPS would transfer to
battery mode and the load is supplied continuously by the battery.

1) It could be enabled through the LCD setting or the software

(Winpower, etc.).

2) It is attention that the transfer time of UPS output from ECO mode

to battery mode is less than 10ms. But it is still too long for some
sensitive load.

6.7 Converter mode

In converter mode, on LCD display, the mode code is “6”.
The UPS would free run with fixed output frequency (50Hz or 60Hz)

in converter mode. Once the mains is loss or abnormal, the UPS
would transfer to battery mode and the load is supplied continuously
by the battery.

1) It could be enabled through the LCD setting or the software

(Winpower, etc.).

22

2) The load should be derating to 60% in converter mode.

6.8 Abnormal mode

In abnormal mode such as Bus fault etc., the corresponding fault
code would be shown to indicate the operating mode of the UPS.
And some warning words could also be shown, for example “short!”
would be shown when the load or the UPS output is short and the
UPS is in inverter fault mode.

23

7. Setting by LCD Module

The output voltage and frequency, and bypass state, and ECO mode, and
Converter mode could be set directly through LCD module. The output
voltage could be set to 208V, 220V, 230V and 240V. The output frequency
could be set to 50Hz and 60Hz. The operating mode of UPS could be set
between the Line mode, ECO mode and Converter mode. The bypass
state could be set to enable and disable. But all the settings could only be
done when the UPS is in bypass or no output mode.

In bypass or no output mode, pressing the “Select” button on the LCD
panel for more than one second, a flickering black dot would be shown
before “208V” on the screen. And if pressing the “Select” button
continuously again, the flickering black dot would move to “220V”, next to
“230V”, “240V”, “50Hz”, “60Hz”, “Bypass Disable”, “Bypass Enable”,
“UPS”, “ECO”, “CVF” in turn. (Here “UPS” means the normal inverter
mode, and “UPS”, “ECO”, and “CVF” would be presented circularly at the
position of output current) And if pressing the “Enter” button for more than
one second at this time, the flickering black dot would turn to flickerless
and the output voltage or frequency or bypass state or mode state setting
would be modified to the selected value. And if no any pressing on the
“Select” or “Enter” button lasting for more than 30 seconds, the flickering
black dot would disappear.

The only one voltage value could be selected in “208V”, “220V”, “230V”,
“240V” at any time. The only one frequency value could be selected in
“50Hz”, “60Hz” at any time. And the output voltage and frequency would
be changed to the corresponding value after the right values are selected
on the LCD panel and the UPS is turn on by pressing the “ON” Button.
The UPS would turn to bypass mode in several seconds after “Bypass
Enable” is selected, and turn to no output mode in several seconds after
“Bypass Disable” is selected. The mode change would be active only after
the UPS is turned on.

24

Ste

p 1:

Ste

p 2:

■

■ Here is a example for changing the output voltage from 220Vac to

■■

230Vac through the LCD panel.

One flickering black dot would appear before
“208Vac” after pressing the “Select” button.

The flickering dot would move to “230Vac” after

pressing the “Select” button two times again.

25

Ste

p 3:

Ste

p 4:

The dot before “230Vac” would turn to flickerless
after pressing the “Enter” button.

The output voltage would be 230Vac after the UPS is

turned on.

26

8. Trouble Shooting

If the UPS system does not operate correctly,

the LCD display.

Normal operating mode Code

No output mode 0
Bypass mode 1
Line mode 2
Battery mode 3
Battery test mode 4
ECO mode 5
Converter mode 6

Warning Code

Site fail 09
Fan fail 10
Battery over voltage (over charged) 11

check the operating status on

Battery low 12
Charge fail 13
DC-DC temperature high 21
Inverter temperature high 24
Ambient temperature high 25
Line voltage high (OVCD action) 26
Battery open 27
Overload 29

27

Fault Code

Bus fault 05
Inverter fault 06
Overload fault 07
Over temperature fault 08
Inverter short 14
Bus short 28
If the UPS system does not operate correctly, please attempt to solve the

problem using the table below.

Problem Possible cause Remedy

No indication, no
warning tone even
though system is

No input voltage Check building wiring

socket outlet and input

cable.
connected to mains
power supply

Display Mode
code ”1” in LCD,

Inverter not
switched on

Press On-Switch “I”.
even though the

power supply is
available

Display Mode
code ”3” in LCD, and
audible alarm
sounding every 1
beep in every 4

Mains power
supply has failed,
or Input power
and/or frequency
are out of tolerance

Switching to battery mode

automatically.

Check input power source

and inform dealer if

necessary.
seconds

Emergency supply
period shorter than
nominal value

Batteries not fully
charged / batteries
defect

Charge the batteries for at

least

5 - 8 hours and then check

capacity. If the problem still

persists, consult your

dealer.

28

Fan fail
Battery over voltage

Battery low

Charge fail

DC-DC temperature
high

Inverter temperature
high

Ambient temperature
high

Line voltage high
(OVCD action)

Battery open

Overload

Site fail

Fan abnormal Check if the fan is running
Battery is over

charged

Switching to battery mode

automatically, and after the

battery voltage is normal

and the mains is normal, the

UPS would Switching to line

mode automatically again.

Battery voltage is
low

When audible alarm

sounding every second,

battery is almost empty.

The charge is

Notify dealer.

broken
Inside temperature

of the UPS is too
high

Inside temperature
of the UPS is too
high

The ambient
temperature is too

Check the ventilation of the

UPS, check the ambient

temperature.

Check the ventilation of the

UPS, check the ambient

temperature.

Check the environment

ventilation.

high
Input power

voltage is too high

Switching to battery mode

automatically, and after the

mains is normal, the UPS

would Switching to line

mode automatically again.

Battery pack is not
connected
correctly

Do the battery test to

confirm.

Check the battery bank is

connected to the UPS.

Check the battery breaker is

turn on.

Overload Check the loads and

remove some non-critical

loads.

Check whether some loads

are failed.

Phase and neutral
conductor at input

Rotate mains power socket

by 180° or connect UPS

29

of UPS system are
reversed

EPO active

Bus fault
Inverter fault
Over temperature

fault

Inverter short

Bus short UPS internal fault Notify dealer

Please have the following information at hand before calling the
After-Sales Service Department:

EPO function is
enabled

UPS internal fault Notify dealer
UPS internal fault Notify dealer
Over temperature Check the ventilation of the

Output short circuit Remove all the loads. Turn

system.

Turn off the EPO switch.

UPS, check the ambient

temperature and ventilation.

off the UPS. Check whether

the output of UPS and loads

is short circuit. Make sure

the short circuit is removed,

and the UPS has no internal

faults before turning on

again.

1. Model number, serial number

2. Date on which the problem occurred

3. LCD display status, Buzzer alarm status

4. Utility power condition, load type and capacity, environment
temperature, ventilation condition

5. The information (battery capacity, quantity) of external battery pack
if the UPS is “L” model

6. Other information for complete description of the problem

30

9. Maintenance

9.1 Operation

The UPS system contains no user-serviceable parts. If the battery
service life (3~5 years at 25°C ambient temperature) has been
exceeded, the batteries must be replaced. In this case please contact
your dealer.

9.2 Storage

If the batteries are stored in temperate climatic zones, they should be
charged every three months for 1~2 hours. You should shorten the
charging intervals to two months at locations subject to high
temperatures.

9.3 Battery Replace

If the battery service life has been exceeded, the batteries must be
replaced.

Battery replacement should be performed only by qualified
personnel.

It recommends to shut off the UPS completely before the replacement.
If there is a battery breaker then turn it off first. Disconnect the battery
cable carefully and make sure no any exposed wires can be touched.
Reconnect the new batteries to the UPS by following section 5.8.
Then turn on the battery breaker and press the ON switch to make the
UPS do the battery test, check whether the battery information is
normal.

31

VFI 1000T LCD

000T LCD

000T LCD

VFI 1000T LCD

000T LCD

000T LCD

10. Technical Data

10.1 Electrical specifications

INPUT

PowerWalker

Model No.

(L)

Phase Single
Frequency (45~55)/(54~66) Hz
Current(A) 9A 17A 26A

PowerWalker

Model No.

(L)

Power rating 1kVA/0.8kW 2kVA/1.6kW 3kVA/2.4kW

PowerWalker

VFI 2

OUTPUT

PowerWalker

VFI 2

PowerWalker

VFI 3

(L)

PowerWalker

VFI 3

(L)

(L)

(L)

Derating to 90% when the output voltage is adjusted to 208VAC
Derating to 80% when the output voltage is adjusted to 200VAC

Number and type

32

Voltage
Frequency
Wave form sinusoidal

Model No.

200/208/220/230/240×（1 士 2%）VAC

50/60±0.2Hz (Battery mode)

BATTERIES

PowerWalker

VFI 1000T

LCD

3×12V 7Ah 8×12V 7Ah 8×12V 7Ah

PowerWalker

VFI 2000T

LCD

PowerWalker

VFI 3000T

LCD

10.2 Operating Environment

Ambient Temperature 0 oC to 45 oC

Operating humidity < 95%

Altitude < 1000m

Storage temperature 0 oC to 45 oC

10.3 Typical backup time (Typical values at 25°C in minutes:)

Model No. 100 % Load 50 % Load

PowerWalker VFI 1000T LCD 5 14
PowerWalker VFI 2000T LCD 9 21
PowerWalker VFI 3000T LCD 5 15

10.4 Dimensions and weights

Model No.

PowerWalker VFI

1000T LCD

PowerWalker VFI

1000T LCD L

PowerWalker VFI

2000T LCD

PowerWalker VFI

2000T LCD L

PowerWalker VFI

3000T LCD

PowerWalker VFI

3000T LCD L

Dimensions W×D×H

(mm)

145×400×220
145×400×220
192×460×347
192×460×347
192×460×347
192×460×347

Net Weight

(kg)

13

7
31
13
31
13

33

11. Communication Port

The communication port is for the monitoring software. A USB port
and an intelligent slot are provided.

11.1 USB

The USB port is compliance with USB 1.1 protocol.

11.2 RS232 Interface(Option)

The following is the pin assignment and description of DB-9
connector.

Pin # Description I/O

2 TXD Output
3 RXD Input
5 GND Input

11.3 AS400 Interface (Option)

Except for the communication protocol as mentioned above, this
series UPS has AS400 card (an optional accessory) for AS400
communication protocol. Please contact your local distributor for
details. The following is the pin assignment and description of DB-9
connector in AS400 card.

Pin # Description I/O Pin # Description I/O

1 UPS Fail Output
2 Summary Alarm Output
3 GND Input 8 UPS ON Output

4
5 Common Input

34

Remote

Shutdown

Input 9 Line Loss Output

6 Bypass Output
7 Battery Low Output

DB-9 Interface of AS400 communication protocol

35

12. Software Installation

WinPower is UPS monitoring software, featuring user-friendly interface to
monitor and control your UPS. This unique software provides complete
power protection for computer system while power failure. With the
software users can monitor any UPS status on the same LAN.
Furthermore, a UPS can provide security protection for more than one
computer on the same LAN at the same time, such as shutting down
system in security, saving application data and shutting down the UPS
when power fails.

Software Installation on your PC:

Connected by USB to a PC or notebook, the Software enables communication
between the UPS and the computer. The UPS software monitors the status of the UPS,
shuts down the system before the UPS is exhausted and can remotely observe the
UPS via the Network (enabling users to manage their system more effectively). Upon
AC failure or UPS battery low, UPS takes all necessary actions without intervention
from the system administrator. In addition to automatic file saving and system
shut-down functions, it can also send warning messages via pager, e-mail etc.

• Use the bundled CD and follow the on-screen instructions to install the software
WinPower.

• Enter the following serial No. to install software: 511C1-01220-0100-478DF2A

• After the software is successfully installed, the communication with UPS has

been established and an green icon will appear in the system tray.

• Double-click the icon to use the monitor software (as above).

• You can schedule UPS shutdown/start-up and monitor UPS status through PC.

• Detail instructions please refer to the e-manual in the software.

Check www.powerwalker.com/winpower.html from time to time to get the latest

version of monitoring software.

36

Appendix: Rear panel

PowerWalker VFI 1000T LCD

PowerWalker VFI 1000T LCD L

37

PowerWalker VFI 2000T LCD

38

PowerWalker VFI 2000T LCD L

PowerWalker VFI 3000T LCD

PowerWalker VFI 3000T LCD L

39

40

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