Form No. 003-2308 Rev C
1K/2K/3K
UniStar C
Intelligent True On-Line UPS
User Manual
1
Table of Contents
1 Important Safety Introduction ................................................................... 3
1.1 An Important Notice ............................................................................. 3
1.2 Storage Instruction ............................................................................ 4
2 Product Introduction ............................................................................ 4
2.1 General Characteristics ....................................................................... 4
2.2 Special Features ................................................................................. 5
3 UPS Functiuonal Descriptions ............................................................. 6
3.1 UPS Front Panel Display Descriptions ................................................ 6
3.1.1 LED Panel (Standard) ........................................................................ 6
3.1.2 LCD Panel ........................................................................................... 6
3.1.2.1 LCD Display ......................................................................................... 6
3.1.2.2 Symbols on the LCD Display Panel ..................................................... 7
3.2 Rear Panel Descriptions .................................................................... 8
3.3 Operating Modes & Voltage System Configurations ......................... 10
3.3.1 System Configuration Settings .......................................................... 10
3.3.2 Software Programmable Outlet Setting ............................................. 12
3.4 Communication Port Explanation ...................................................... 14
3.4.1 True RS232 Port Descriptions ......................................................... 14
3.4.2 USB Port Descriptions ....................................................................... 15
3.4.3 EPO ................................................................................................... 15
4 Installation and Operation.................................................................. 16
4.1 Unpacking ......................................................................................... 16
4.2 Selecting Installation Position .......................................................... 17
4.3 Set Up................................................................................................ 18
4.4 Operation ......................................................................................... 21
4.4.1 Start Up in Normal Mode ................................................................... 21
4.4.1.1 Start-up in Battery Mode (Cold Start) ................................................ 23
4.4.1.2 Check Measured Values & Figures detected by UPS ....................... 24
4.4.1.3 UPS Default Data and Special Function Execution ........................... 25
4.4.1.4 UPS Default Settings and Their Alternatives ..................................... 28
4.4.1.5 UPS Is Off Due To Unknown Reason and Trouble Shooting ............ 29
4.4.1.6 Shut Off ............................................................................................. 30
4.4.2 Status & Audible Alarm ..................................................................... 30
4.4.3 Battery Replacement ......................................................................... 31
5 UPS Working Principle ...................................................................... 33
5.1 UPS System Block Diagram .............................................................. 33
5.2 When Utility is Normal ....................................................................... 34
5.3 When Utility is Abnormal/Absent ....................................................... 35
5.4 Overload Condition ............................................................................ 36
5.5 Inverter Failure .................................................................................. 37
5.6 Inverter/Internal Over Temperature ................................................... 38
5.7 Inverter Over Current and Output Voltage Out Of Tolerance ............ 38
6 Maintenance Guide ........................................................................... 39
2
6.1 Trouble Shooting ............................................................................... 39
6.2 Error Codes and their Descriptions ................................................... 39
6.3 Maintenance...................................................................................... 39
7 Bundled Software Installation Guide ................................................. 40
7.1 Hardware Installation ........................................................................ 40
7.2 Software Installation .......................................................................... 40
8 Dry Contact card SC-Relay (Optional) .............................................. 41
8.1 The Pin assignments of 10-Pin Terminal .......................................... 41
8.2 SNMP Card ..................................................................................... 42
8.2.1 SNMP/WEB Card SC-SNMPI (Optional) .......................................... 42
9 Specifications .................................................................................... 43
3
1. Important Safety Instruction
1.1 An Important Notice
1. Do not open the case, as there are no serviceable parts inside. Your
Warranty will be void.
2. Do not try to repair the unit yourself; contact your local supplier or your
warranty will be void.
3. If liquids are split onto the UPS or foreign objects dropped into the unit, the
warranty will be null and void.
4. Do not install the UPS in an environment with sparks, smoke or gas.
5. This UPS is equipped with an EMI filter. To prevent potential leakage
current hazard, ensure that the AC main supply is securely grounded.
6. This UPS is designed to be installed and commissioned in a sheltered,
controlled environment as follows:
- Operating temperature 0-40°C and 30-90% non-condensing humidity.
- Always avoid contact with direct sunlight.
- Do not install the UPS in a flammable or hazardous environment.
- Dusty, corrosive and salty environments can do damage to any UPS.
- Install the UPS indoors as it is not designed for installation outdoors.
7. To prevent any overheating of the UPS, keep all ventilation openings free
from obstruction, and do not place anything on top of the UPS. Keep the
UPS rear panel 20 cm away from the wall or other obstructions.
8. The battery will discharge naturally if the system is unused for any length of
time.
9. Install the UPS away from objects that give off excessive heat and areas
that are excessively wet.
10. Always switch off the UPS and disconnect the batteries when relocating the
UPS.
11. The batteries should be recharged every 2-3 months if unused. If this is not
done, then the warranty will be null and void. When installed and being used,
the batteries will be automatically recharged and kept in top condition.
12 Make sure that the AC Utility outlet is correctly grounded.
13. Please ensure that the input voltage of the UPS matches the utility supply
voltage. Use a certified input power cable with the correct plugs and sockets
for the appropriate voltage system.
14. Intended for installation in a temperature-controlled, indoor area free of
conductive contaminants.
15. Maximum ambient temperature 40°C
4
1.2 Storage Instruction
For extended storage in moderate climate, the batteries should be charged
for 12 hours every 3 months interval by connecting the UPS to the utility supply
and switch on input breaker located at UPS rear panel. Repeat this procedure
every 2 months if the storage ambient temperature is above 30 C.
2. Product Introduction
2.1 General Characteristics
True online technology continuously supplies your critical device with a
stable, regulated, transient-free pure sine wave AC Power.
1. High-efficiency PWM sine-wave topology yields an excellent overall
performance. The high crest factor of the inverter handles all high inrush current loads without the need to upgrade the power rating.
2. User-friendly Plug-and-Play design allows hassle-free installation. All
units up to 3Kva are supplied with input cables and output receptacles
as standard.
3. Built-in Maintenance-free sealed-type batteries.
4. To protect the unit from overloading, the UPS will automatically switch
to bypass mode in 30 seconds if loading is at 105%~ 120% of rated
capacity. It will automatically switch back to inverter mode once
overload condition ceases.
5. Should the output becomes short-circuited, the UPS will be locked
automatically, then provide visual & audible alarm and cuts the output
supply automatically till the short circuit situation is resolved manually.
5
2.2 Special Features
1. High Frequency Transformer-less technology with rack/tower convertible
enclosure allows the UPS to be installed in the most difficult of
environments with space constraints.
2. This UPS is equipped with digital control logic for greater functionality
and enhanced high level power protection. Digital signal processing
(DSP) also provides the UPS with powerful communication capability,
which enhances the flexibility for easy remote control and monitoring
3. Wide input voltage tolerance from 60V ~ 144V (120V version) or
120V~288V (230V version) allows under-voltage or over-voltage
correction without unnecessary battery drain and helps extend the
battery life.
4. DC-start function allows start-up of the UPS during power outages.
5. Revolutionary battery management circuit analyzes battery discharging
status to adjust battery cut-off point and extend battery life.
6. Active Power Factor Correction (PFC) control function constantly
maintains the UPS Input Power Factor (PF) at > 0.99 for superb energy
efficiency.
7. Software Selectable Bypass input voltage tolerance (Sensitivity low/high)
to prevent under or over voltage being supplied to the load in Bypass
mode. The selectable Voltage ranges are (i) Sensitivity: Low:
90/180~130/260V & (ii) Sensitivity High: 97/194~130/260V.
8. Software Selectable Output Voltages (100/110/115/120/127V on 120V
models or 200/208/220/230/240) on 230V models to meet various
voltage systems.
9. The UPS is designed to comply with various stringent international
standards for Electromagnetic Interference & protection (EMC).
6
3. UPS Functional Descriptions
3.1 UPS Front Panel Display Descriptions
3.1.1 LCD panel
LCD Display
Green LED steadily lights up to indicate that the Utility input voltage is within
the window (80Vac~144Vac, or 160Vac~288Vac); the LED flashes
flickeringly to indicate that the Utility input voltage is within the acceptable
window (60Vac~79Vac, or 120Vac~159Vac).
、 Green LED lights up to indicate there is an output available at the
Programmable Outlet 1 & Programmable Outlet 2.
Amber LED lights up to indicate the Bypass Input is normal.
UPS Fault LED
UPS On/Alarm Silence
UPS OFF Switch
7
Special functions log in/out
Go to next page
Go to previous page or change the setting of the UPS.
To confirm the change of UPS Setting
◎ Manual Bypass：Press" ON-KEY ” and " Up-KEY" key simultaneously
for approx. 3 seconds to transfer from "Inverter to Bypass" (the bypass led
continuously “blinks“ and audio alarm will beep intermediately) or "Bypass to
Inverter", when the UPS is on Line Mode and the Bypass Voltage Window is
Normal.
3.1.2.1 Symbols on the LCD Display Panel
Item
Symbol
Description
1
LINE
Utility or Bypass Source
2
Battery Low
3
Battery Abnormal
4
UPS Overloading
5
Site Wiring Fault
6
UPS Working in Service Mode
7
OFF
UPS Shutoff
8
FAIL
UPS Abnormal Lock
9
UPS Flow Chart
10
4 Digits Measurement Display
11 Indicate the item desired to be measured
22
Er05
Battery Weak or Dead
23
Er06
Output Short Circuit
24
Er10
Inverter Over-current
25
Er11
UPS Overheat
26
Er12
UPS Output Overloading
27
Er**
Other Error Code
8
3.2 Rear Panel Descriptions
120V
1KVA
10
8 7
1
2
3
5
46
2KVA
3KVA
9
230V
1KVA
2KVA
3KVA
1. USB Port
2. RS232 Port
3. Emergency Power Off (EPO) Dry Contact Signal inputs
4. Communication Card Options Slot
5. External Battery Connector
6. AC power connection socket
7. AC Outlets
8. Two programmable outlets
9. Utility Input circuit breaker
10. Cooling Fans
11. Output circuit breaker for two outlets
12. Output circuit breaker for two programmable outlets
10
3.3 Operating Modes & Voltage System Configurations
Download and open the “UPS Setting Tool” Software to see the screen as below
3.3.1 System Configuration Settings
1. System Voltage Selection：Select Input Voltage 110V or 220V
2. Voltage Configurations：Select UPS Output Voltage
200V/208V/220V/230V/240V or 100V/110V/115V/120V/127V
3. UPS Modes：Select Normal/CF50*/CF60* Mode
4. Output Voltage Fine Tuning：Output Voltage Regulation from 0～±3%
11
5. Bypass Voltage Windows：Sensitivity: Select Sensitivity Low/Sensitivity
High**
Sensitivity Low
Sensitivity High
120V System
90V～130V
97V～130V
230V System
180V～260V
194V～260V
6. Syn-Frequency Window：Select 3Hz/1Hz Inverter Freq synchronizing
range
7. Com Port：Select the Com Port of PC
8. Click on “Write” to confirm the configuration settings. The UPS will beep
twice to acknowledge setting is successful.
9. Turn off the UPS and unplug input power cord from AC Power Utility
receptacle to shutdown whole unit without internal power supply existing,
after setting is complete. 3 seconds later reconnect input power cord into
AC Power Utility receptacle and turn on the UPS, referring to the section
4.4 Operation. The UPS will perform in new settings.
Note:
*CF50/CF60 = Frequency Converter mode 50 to 60Hz or 60 to 50Hz. When
operating in CVCF mode the full load rating of the UPS is reduced to 75%
(1000va becomes 750va). Additionally, the AC low transfer point based
on load percentage is referred to the new power rating.
160Vac load rating is 66% ~ 100% (495va ~ 750va)
140Vac load rating is 33% ~ 66%
120Vac load rating is 0% ~ 33%
**Sensitivity Low：90/180~130/260V, High: 97/194~130/260V
12
3.3.2 Software programmable outlet setting
The UPS is equipped with 2 programmable outlets for use to supply to less
critical loads. These outlets can be disabled to shed the less critical loads during
back-up modes or overload conditions to maintain quality power supply to the
more critical loads connected to the UPS.
Click on the “Programmable outlet setting” bar to enter to the setting screen as
shown below.
13
1. Outlet Turn On After UPS On– select the time to automatically enable
this outlet within the specified time when the UPS is powered on. If “0”
sec is selected, the outlet will be enabled once the UPS is powered on.
2. Outlet Turn Off After AC Failure – select this option to automatically
disable the outlet within the specified time after utility outage to shed the
less critical loads to provide longer battery back-up time for the other
more critical loads connected to the UPS.
3. Outlet Turn On After AC Recovery – select this option to automatically
enable the outlet within the specified time after the utility is restored.
4. Outlet Turn Off When Battery Low - select this option to automatically
disable the outlet at the specified remaining battery power capacity(%)
during battery mode to shed the less critical loads to prolong battery
back-up time for the other more critical loads connected to the UPS.
5. Outlet Turn Off When UPS Overload – select this option to automatically
disable the outlet during overload condition (bypass mode) to possibly
allow the more critical loads:
a) To be continually supplied via Bypass without shut down
6. You have to select the "Setting" menu to configure new
parameters. The calibration is confirmed successfully after the UPS
beeps twice. Turn off the UPS and unplug input power cord from AC
Power Utility receptacle to shutdown whole unit without internal power
supply existing, after setting is complete. 3 seconds later reconnect input
power cord into AC Power Utility receptacle and turn on the UPS,
referring to the section 4.4 Operation. The UPS will perform in new
settings.
7. Manual Control Switch – Click “On” or “Off” to manually enabled or
disabled the programmable outlets, overriding all previous settings.
14
3.4 Communication Port Explanation
The UPS is equipped with EPO dry contacts input, true RS232 & USB
Communication port as standard to provide communication with bundled UPS
monitoring software for remote monitoring of UPS status via PC.
There are 4 other optional interface cards available to meet various
communication needs, i.e. DCE (dry contact relay card) 、R2E、USE and
SNMP/WEB card (Please consult Chapter 8).
The bundled software of the UPS is compatible with many operating
systems such as Windows 98, & 2000, ME, NT, XP and Vista. For other
applications such as Novell, NetWare, Unix, Linux, please contact your local
dealer for suitable software.
All the communication ports (including optional cards) can be active & used
simultaneously to monitor the UPS status. However only 1 communication
interface at any one time with the highest priority has the ability to command &
control the UPS. The priority of these communication interfaces are as follow:
Highest Priority (in descending order),
1) EPO input port
2) Optional Interface card
3) USB
4) RS232
3.4.1 True RS232 Port Descriptions
The RS232 interface shall be set as follows：
Baud Rate
2400 bps
Data Length
8 bits
Stop Bit
1 bit
Parity
None
15
The Pin Assignments of the true RS232 port are illustrated as follows：
5
4
3
2
1
9
8
7
6
3.4.2 USB Port Descriptions
The USB communication protocol definition as below:
1. Complies with USB version 1.0, 1.5Mbps
2. Complies with USB HID Version 1.0.
3. The Pin Assignments of the USB port:
3.4.3 EPO
The Pin assignments of the EPO Input port are:
1 EPO+
2 Ground
To enable the EPO function, please short Pin 1 & 2.
Pin 3: RS232 Rx
Pin 2: RS232 Tx
Pin 5: Ground
1 VCC (+5V)
2 D－
3 D＋
4 Ground
1
2
16
4. Installation and Operation
Read the Safety Instruction guide (page 2 to 3) before installing the UPS
4.1 Unpacking
Inspect the UPS upon receipt. Staco has designed robust packaging for
your product. However, accidents and damage may occur during shipment.
Notify the forwarder and dealer if there is damage.
The packaging is recyclable; save it for reuse or dispose of it properly.
Remove the UPS from the carton box.
Check the package contents. Standard content shall includes：
1 set of User's Manual
2 pcs of IEC output cables (for UPS with IEC sockets only)
1 pc of detached AC Input Power Cord (for UPS with IEC
sockets only)
1 set of UPS communication software with RS232 cable
1 set of Tower/Rack Accessories Kit as below:
17
4.2 Selecting Installation Position
The UPS is heavy. Select a location sturdy enough to handle the UPS
weight.
To ensure proper operation and long operating life, always position the UPS
according to the following requirement：
1. Keep minimum 20cm (8 inches) distance
clearance from the rear panel of the UPS
to avoid any obstructions.
2. Do not block the air-flow to the ventilation
louvers of the unit.
3. Please ensure the installation site is free
from excessive dust and the ambient
temperature and humidity should be
within the specified limits.
4. Do not place the UPS in a dusty or
corrosive environment or near any
flammable objects.
5. This UPS is not designed for outdoor use.
0%~90%
Relative humidity
(non condensation)
18
4.3 Set up
Tower Configuration Setup
Step 1
Power Module + Battery Module
Step 1
19
Rack-Mount Configuration Setup
Step 1
Step 2
Step 3
20
Step 4
Step 5
21
4.4 Operation
4.4.1 Start Up In Normal Mode
(1) Make sure the voltage of Utility matches with the input voltage window of
the UPS.
(2) Connect the UPS to the wall Receptacle of the Utility. After a short delay
the UPS will automatically start. LED and light up to indicate the
Utility and the Bypass are normal. The LCD will change from drawing A to
drawing B.
A
22
B
(3) The UPS is on Bypass Mode now and will proceed to self-test
automatically. If there is no abnormal message then the pre-start-up of
the UPS was successful and the charger begins to charge the
batteries.
(4) Press the UPS On Switch„ ‟for approx. 3 seconds, until the unit
beeps twice. If the UPS start-up is successful, the LCD display changes
from drawing B to drawing C.
C
(5) In case of failure in self-test, the LCD display will illustrate as drawing D,
then, an error code or error status will be shown on the screen.
D
E
23
(6) The start-up sequence of the UPS is complete as illustrated as drawing E.
Make sure the UPS is plugged onto the wall receptacle for at least 8
hours to ensure the batteries are fully charged. To turn off the UPS
press and hold the Off switch until the alarm beeps twice, then release the
switch. The UPS will shut down a few seconds later.
4.4.1.1 Start-up in Battery Mode (Cold Start)
(1) Make sure the UPS has fully charged batteries installed.
(2) Press the UPS On switch for approx. 3 seconds until the audible alarm
sounds twice, then release the On switch. The LCD display will change
from Drawing A to drawing G.
G
(3) Press the UPS On switch of the UPS a second time for approx. 3
seconds until the audible alarm sounds twice, then release the On switch.
Failure to press the On switch a second time within 10seconds will cause
the UPS to shut off. The LCD display changes from drawing G to
drawing H, then the UPS will be in self-test Mode. The Inverter will
supply voltage to the output within 1 minute, and the LCD display changes
to drawing I.
H
I
24
4.4.1.2 Check Measured Values & Figures detected by UPS
(1) If you would like to check the measured values & messages, please use
scroll up and scroll down key pads. When you use the scroll
down key pad, the LCD display will change in sequence from Drawing
E(Input Voltage) Drawing J(Input Frequency) Drawing K(UPS Output
Voltage) Drawing L(UPS Output Frequency) Drawing M(UPS Output
Load percentage) Drawing N(UPS Battery Voltage) Drawing O(UPS
interior temperature.
J
K
L
M
25
N
O
4.4.1.3 UPS Default Data and Special Function Execution
(1) After UPS is turned on successfully, use key pad to change the LCD
Display screen to drawing P1.
P1
P2
(2) Press key pad to scroll down the LCD screen, then check the UPS
settings. The LCD display will show in sequence: Drawing P1(audible
alarm)Drawing Q1(self test)Drawing R1(Bypass Voltage)Drawing
S(Output Frequency Synchronized Window)Drawing T(Inverter Output
Voltage)Drawing U1(UPS Operation Mode)Drawing V(Output Voltage
Fine Tuning)
26
Q1
Q2
R1
R2
S
27
T
U1
U2
U3
V
28
(3) Press scroll up key pad, you may execute special functions. The
functions include Buzzer ON (as drawing P1) or buzzer OFF (as drawing
P2, Alarm silence for UPS warning) and self-test ON (as Drawing Q1) or
OFF (as Drawing Q2. UPS will execute battery test for 10 seconds), if the
self-test is successful, it show as Drawing W; otherwise, it will show as
Drawing D & error message at the same time.
W
4.4.1.4 UPS Default Settings and Their Alternatives
(1) Begin with the UPS Off and disconnected from the utility. Connect the
UPS to the utility and immediately proceed with the following, before the
UPS starts to self test. Make sure the UPS is not “ON” yet, which means
it is not in Line Mode or Backup Mode. Press the ON Switch and
scroll down key pads simultaneously for approx. 3 seconds, the
audible alarm will sound twice, the LCD display screen displays as
drawing P1. The UPS is now in setup mode.
(2) To scroll down the LCD screen press the scroll down key pad.
(3) Except audible alarm (as Drawing P1 & P2) and self-test (Q1 & Q2), all of
the default settings may be changed by pressing scroll up key pad.
(4) Use caution if adjusting the bypass input acceptable window. It can be
180Vac~ 260Vac for 220Vac system, 90Vac~130Vac for 110Vac system
or 194Vac~260Vac for 220Vac system, 97Vac~130Vac for 110Vac
system.
(5) Drawing S indicates the bypass frequency window of the inverter output.
The acceptable setting values are +/-3Hz and +/-1Hz.
(6) Drawing T indicates the acceptable Inverter Output Voltage, of which
voltage is 200V, 208V, 220V, 230V, or 240V for 220Vac system , or 100V,
110V, 115V, 120V and 127V.
(7) Drawings U1, U2 and U3 indicate the operating modes of the UPS, of
which the alternatives are Online, fixed 50Hz Output or fixed 60Hz Output.
(8) Drawing V indicates the adjustments of the Inverter Output, which may be
calibrated as 0%, +1%, -1%, +2%, -2%, +3%, or -3%。
(9) When all the setting changes are done, you have to save the changes.
Press the scroll down key pad until the display show as drawing X.
Now press the enter key pad to save all the changes. The changes
will be activated only when the UPS is re-started.
29
X
(10) Turn off the UPS and disconnect from the Utility.
(11) Your Setting changes are complete.
4.4.1.5 UPS Is Off Due to Unknown Reason and Trouble Shooting
(1) If there is a serious abnormal condition occurred, the UPS will lock itself
as shown in the drawing Y and a abnormal message will show in the
LCD screen.
Y
(2) In most of abnormal conditions occur, the UPS remains bypass output;
however, when it is out of bypass window set, the UPS will be locked and
the abnormal status will be shown as drawing Z on the LCD screen.
Z
(3) To release the UPS lock, proceed as follows:
(a) Check those error messages recorded
(b) See Chapter 6.2 to trouble shoot the problem. Otherwise, consult your
local distributor for service.
(c) Press key pad for 5 seconds and the audible alarm will sound twice.
(d) Disconnect the UPS from the Utility Input.
(e) The UPS lock problem is now cleared.
30
4.4.1.6 Shut Off
(1) Press key pad for about 5 seconds, the Inverter output will be turned
off, the output load is supplied by Bypass loop and the LCD screen
displays as drawing B.
(2) Disconnect the UPS from the utility.
(3) The UPS is turned off completely.
4.4.2 Status & Audible Alarm
The following table helps to define some of the common UPS statuses with
respect to their audible alarm descriptions.
Status Definitions
Audible Alarm Descriptions
UPS faulty, Inverter shutdown.
All functions inhabited.
Long Continuous Beep
UPS faulty, loads continue to
be supplied via Inverter or
Bypass.
Single successive beep with ~ 2 sec
interval
battery mode
Single short successive beep with ~1
sec interval
battery low
Very quick and short successive beep
confirm/RS232 port receiving
2 quick & short beeps
service mode ok
1 quick & short beep
UPS initial start-up with self
test
2 successive quick & short beeps,
repeating per ~2 sec interval.
31
4.4.3 Battery Replacement
Step 1
Step 2
32
Step 3
Step 4
1KVA
2K/3KVA
33
5. UPS Working Principle
5.1. UPS System Block Diagram
(fig 5.1)
Figure 5.1 above illustrates the True On-Line Double Conversion architecture
of the UPS system. The major modules consist of：
1) An AC to DC power converter (Rectifier) with PFC control circuit
2) A DC to AC power high frequency inverter
3) An Intelligent Battery Charger
4) A bank of stationary maintenance-free batteries
5) A DC to DC push/pull converter control circuit
6) A Static Bypass Loop
7) Input & Output EMI Filter
The table below provides a summery guide to the UPS operating modes
against the Utility AC Power Source conditions
34
Utility Conditions
UPS Operating Modes
LEDs Display
indications
Utility Normal
Rectifier convert AC to DC, battery
charging, Inverter convert DC to AC
and supply to loads with clean & stable
power.
, , LEDs
remain illuminated
Utility Abnormal
(under or over
voltage) / Absent
Rectifier and charger stop operating，
Battery discharge via DC~DC boost
circuit and supply to Inverter. Loads
continue to receive supply from
Inverter. Alarm beeps, UPS now on
battery mode.
LED off, LED
illuminated
Utility
Abnormal/Absent,
Battery low voltage
Rectifier and charger stop operating，
Battery discharge via DC~DC boost
circuit and supply to Inverter. Alarm
beeps with quick & short succession,
indicating battery power low and
Inverter may stop supply soon.
LED off, &
LED illuminated.
Paragraph 5.2 ~ 5.7 below provide detailed descriptions of the UPS operating
principle
5.2 When Utility is Normal
The working principle of the UPS under Utility normal condition is illustrated as
follows：
When Utility is normal, the AC source is rectified to DC, which fed into the
inverter. The charger will turn on automatically to charge batteries. The inverter
revert the DC to a cleaned and pure AC to supply energy to the load connected.
The , , LEDs illuminated.
Fig 5.2
35
5.3 When Utility is Abnormal/Absent
The working principle of the UPS under Utility abnormal condition is illustrated
as follows：
1. When Utility is abnormal, the UPS will direct the battery energy automatically
to the Inverter without delay, and turn off the charger and AC/DC converter.
The inverter converts the DC to AC to supply energy to the output connected
load without interruption. The LED will be illuminated.
2. When Utility is back to Normal, the UPS will turn on the AC/DC converter, turn
off the DC/DC converter and switch the charger to charging mode. It has the
same working principle as figure 5.2.
3. During a utility outage, the UPS will work as illustrated in figure 5.2. When
Battery is low, the audible alarm will beep continuously until the battery
reaches low battery cut off. The battery low protection of the UPS will cut off
battery supply after a preset threshold to avoid the battery from over-drain.
The & (Battery Low) LED‟s will light up until the UPS is completely cut
off. The UPS will re-start automatically when Utility is available.
Fig 5.3
36
5.4 Overload Condition
The working principle of the UPS when overloading is illustrated as follows：
(1) Generally, modern electronics & IT equipment generate an inrush current
when switching on. The amount of inrush current varies from equipment to
equipment, some can be as high as 6 times its rated capacity while others
produce negligible inrush. To prevent severe damage to the Inverter, caused
by inrush produced by loads, the UPS is equipped with an electronic overload
protection feature. If the UPS load is >105~120% of its capacity, it will switch
to bypass mode in 30 seconds to protect the Inverter. If the overload condition
is eliminated by reducing the load to <105%, the UPS will switch back to
Inverter mode automatically. If the UPS is over 150% loading, it inverter will
shutdown immediately.
37
Fig 5.5
2. The UPS Bypass loop is also equipped with overload protection. Its overload
capacity is illustrated by the graph & table below.
5.5 Inverter Failure
Output Load short circuit when being supplied from inverter
If the output load is shorted while being supplied by the Inverter, the UPS will
shutdown the Inverter automatically. The Fault LED lights up and the audio
alarm beeps continuously. The UPS will not switch on automatically after a
short circuit condition is eliminated. The UPS has to be re-start manually (refer
to 4.4.1 „Start Up in Normal Mode‟).
38
5.6 Inverter/Internal Over temperature
If the UPS experiences internal over-temperature while the Utility is normal, it will
switch to bypass loop. The UPS will switch back to inverter mode when the overtemperature situation is eliminated. If over temperature occurs when Utility is
abnormal, it will beep continuously and the Fault LED will light up. The UPS
will cut off supply to the loads.
5.7 Inverter Over Current and Inverter Output Voltage Out of
Tolerance
If the UPS inverter delivers over-current and out-of-tolerance voltage to its
outlets, the UPS has failed. The UPS will switch to bypass loop when Utility is
normal. The Utility LED, Bypass LED and Fault LED will light up.
If these two fault conditions occur when Utility is abnormal, the UPS will cut off
the supply to its outlets and the Fault LED will light up.
39
6. Maintenance Guide
6.1 Trouble Shooting
When the UPS becomes faulty or malfunctions during operation, you may check
the fault lists below for possible solutions. Should the problem persist, please
contact Staco for assistance.
6.2 Error Codes and Their Descriptions
Code
Descriptions
Er05
Battery weak or faulty
Er06
Output short-circuited
Er07
EPO mode
Er11
UPS over-temperature
Er12
Inverter overload
Er14
Fans out of order
Er18
EEPROM's data error
Er24
Utility Low（<85/170V）& Battery Disconnect
Er28
Bypass overload
Er31
EEPROM's data not conform to the Jumper Setting
6.3 Maintenance
Clean the dust from the ventilation openings and intakes on the rear panel.
1. Turn off the UPS and wipe the casing with a damp cloth.
2. Periodically unplug the power cord of the UPS from the wall receptacle to
test the batteries condition.
3. Be sure you have already saved your application before you proceed to the
battery discharging capability test.
40
7. Bundled Software Installation Guide
7.1 Hardware Installation
1. Connect the male connector of RS232/USB* cable to the UPS communication
port.
2. Connect the female connector of the RS232/USB* cable to a dedicated RS232
port of the Computer.
3. For optional interface cards, please refer to Chapter 8 for more details.
*Note: Only RS232 cable is provided with the UPS. USB cable is optional
7.2 Software Installation
Please refer to the user‟s manual of the bundled software CD ROM for
installation guide.
EPO
G
DC36 V
AC OUTPUT
2
1
41
8. Dry Contact card SC-Relay (Optional)
8.1 The pin assignments of 10-Pin Terminal：
1 UPS on Bypass mode (Bypass)
2 Utility Normal (Normal close contact)
3 Utility Normal (Normal open contact)
4 Inverter On
5 Battery Low
6 Battery Bad or abnormal
7 UPS Alarm
8 Common
9 Shutdown UPS positive(+) signal
10 Shutdown UPS negative(-) signal
The shutdown function will be activeated, after a +6~+25Vdc is put
between pin 9 and pin 10 for 5 seconds.
The capacity of each relay contact is 40Vdc/25mA.
Installation Position：Optional Slot.
Flexible signal output for N.C.(Normal Close) or N.O.(Normal Open)
contact by shorting pin1-2 or pin2-3 form JP1-5.
The shutdown function will be enabled 1 minute after a blackout occurs if
pins 1-2 of both CN1 and CN6 are shorted. Or, the shutdown function
can only be enabled by pin9-10 of CN3 if the pin2-3 of both CN1 and
CN6 are shorted.
1 2 3 4 4 5 6 7 8 9 10
42
8.2 SNMP Card
8.2.1 SNMP/WEB card SC-SNMPI (Optional)
For installation, please refer to the user‟s manual attached with the card.
Installation Position：Option slot
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9. Specifications
Model
1KVA
2KVA
3KVA
VA Rating
Apparent Output Power
1000VA
2000VA
3000VA
Active Output Power
700Watts
1400Watts
2100Watts
Power Factor
0.7
Topology
Double conversion On-Line
Type
Rack/Tower
Agency Approvals
120V Models: UL, cUL, FCC
230V Models: CE
Input
Voltage Window
120V
60/70/80 - 144Vac
230V
120/140/160 - 288Vac
Voltage
Range
Based on load percentage (0~33/33~66/66~100%)
Low Line
Transfer
120V
60/70/80Vac
230V
120/140/160Vac
Low Line
Comeback
120V
85Vac
230V
170Vac
High Line
Transfer
120V
144Vac
230V
288Vac
High Line
Comeback
120V
139Vac
230V
278Vac
Frequency
50/60 Hz auto-select, ± 5Hz
Phase
Single phase with ground
PF
＞0.99 at full rated linear load
Typical Transfer Time
0 ms.
AC Leakage current
115V
5mA
230V
3.5mA
Surge Protection
115V
400 joules
230V
300 joules
Output
Output
(INV. mode)
Voltage
120V
120V,software adjustable to 100/110/115/120/127
230V
230V,software adjustable to 200/208/220/230/240
Voltage Regulation
1% until low battery warning
Frequency(Synchroniz
ed Range)
3Hz or 1Hz (setting by software)
Frequency(Battery
Mode)
±0.1% (0.05~0.06Hz) unless synchronized to line
44
Current Crest Factor
3:1
Harmonic Distortion
≦3% THD(Linear Load)
≦7% THD(Non-Linear Load)
Transient
Response(ms)
＜＝60ms/5%
Waveform
Pure Sine wave
Efficiency
To AC Mode (Full load)
85%
85%
88%
To Battery Mode (Full
load)
83%
83%
85%
Battery System
Type
12V/7.2Ah
12V/7.2Ah
12V/9Ah
Numbers of Batteries
3 6 6
Backup Time(Full Load)
>7min.
>7min.
>5min.
Recharging Time
4 Hours to 90%
Charging Current (Max.)
1.1A
2.16A
2.7A
Charging Voltage
41.0Vdc±0.5V
82.0Vdc±0.5V
82.0Vdc±0.5V
Hot Swappable Battery
Yes
Internal battery
Yes
DC leakage current
30uA ( 10uA) with no AC applied and the unit in the off
position
Battery type
Sealed, non-spill, maintenance-free, lead acid
Transfer Time
AC to DC
Zero
Inverter to Bypass
2.5ms(Typical)
Zero
DC Start
Yes
Self Diagnostics
By button of the front panel or Software Control
Front Panel
LCD
Load Level/Battery Level/ Battery Mode/ Normal Mode/Bypass
Mode/ Self-Test/ Weak/Bad Battery/Site Wiring Fault/ Fault/
Overload/Programmable Outlet1//Programmable Outlet2
Key
ON Button/ OFF Button/ (Test/Alarm Reset Button)
Protection
Overload
(AC Mode )
＜105％ continuous
＞106％～120％ for 30 seconds transfer to bypass
＞121％～150％ for 10 seconds transfer to bypass
＞150％ for immediately transfer to bypass
* Notification: continuous alarm.
45
(Battery Mode)
＜105％ continuous
＞106％～120％ for 30 seconds shuts down
＞121％～150％ for 10 seconds shuts down
＞150％ for immediately shuts down
* Notification: continuous alarm.
(Bypass Mode)
＜105％ continuous
＞106％～120％ for 250 seconds shuts down
＞121％～130％ for 125 seconds shuts down
＞131％～135％ for 50 seconds shuts down
＞136％～145％ for 20 seconds shuts down
＞146％～148％ for 5 seconds shuts down
＞149％～157％ for 2 seconds shuts down
＞158％～176％ for 1 seconds shuts down
＞177％～187％ for 0.32 seconds shuts down
＞188％ for 0.16 seconds shuts down
* Notification: continuous alarm.
Short Circuit
Bypass mode : Input Fuse/Input Breaker
Normal Mode: Output Breaker/Electronic Circuit
Battery Mode: Output Breaker/Electronic Circuit
Battery
ABDM
EPO - Standard
UPS shuts down immediately
Over
Temperature
Normal Mode
Transfer to Bypass Mode
Battery Mode
UPS shuts down immediately
Audible Alarm
Battery Mode
Sounding once every 1.5 seconds
Low Battery
Sounding once every 0.2 seconds
Overload
Sounding once every 3 second
Fault
Continuously Sounding（or Sounding once every 3 second）
Physical
Dimensions(HxWxD in/mm)
3.5/89x17.3/440x
16/406
3.5/89x17.3/440x
25.6”/650
3.5/89x17.3/440x
25.6/650
Weights
34.5Ib(15.7kg)
64.7Ib(29.4kg)
65.3Ib(29.7kg)
Input Connection
120V
NEMA 5-15P
NEMA 5-20P
NEMA L5-30P
230V
10A, IEC 320-C14
10A, IEC 320-C14
16A, IEC 320-C20
Output Connection
120V
(6) 5-15R
(2) 5-15R
(2) 5-20R
(4) 5-15R
(1) L5-30R
230V
(6) 10A,IEC 320-C13
(4) 10A,IEC 320-C13
(1) 16A,IEC 320-C19
Environmental
Operation Temperature
0-40°C
46
Noise Level
＜50dBA
Relative Humidity
0 to 90% (Without condensation)
Interface
Interface Type -Standard
1 *USB port+ 1*RS-232 port
SNMP (Optional)
Power management from SNMP manager and Web browser
Compatible platforms
Windows 95/98/NT/2000/XP/Vista Novell NetWare, Linux, etc.
Standards and Certification
Safety
IEC/EN 62040-1-1,IEC 60950-1
Performance
IEC/EN 62040-3
EMC
IEC/EN62040-2 Class A, FCC Part 15 Subpart B Class A,
IEC/EN55011, CISPR11, IEC61000-4-2/-3/-4/-5, IEC61000-2-2,
IEC61000-3-2/-3
Markings
CE, UL, cUL, FCC
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