Superior Electric STABILINE User manual

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STABILINE®
Uninterruptible Power Supply
Line Interactive UPS
Model SBK350
Installation, Operation and
Maintenance Manual
Thank you for purchasing the SBK350 Series STABILINE® Uninterruptible Power Supply....
another Superior product!
Expect exceptional performance. The unit is built to the highest standards for your
complete satisfaction.
To assure many years of uninterrupted service, please read and save this Manual.
The Manual is a guide to install and use the UPS. It includes important safety instructions
for operation and correct installation of the UPS. If you should have any problems with the
UPS, please refer to this manual before calling customer service.

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•WARNING (SAVE THESE INSTRUCTIONS): This manual contains important
instructions that should be followed during installation and maintenance of the UPS and
batteries.
•WARNING (CONTROLLED ENVIRONMENT): These units are intended for
installation in a temperature controlled, indoor area, conductive free environment.
•CAUTION: Risk of electric shock, do not remove cover. Refer servicing to qualied
service personnel.
•CAUTION: Do not dispose of batteries in a re, they may explode.
•CAUTION: Do not open or mutilate the battery, released electrolyte is harmful to the skin
and eyes. It may be toxic.
•CAUTION: A battery can present a risk of electric shock and high short circuit current.
The following precautions should be observed when working on batteries
Remove watches, rings or other metal objects.
Use tools with insulated handles.
Wear rubber gloves and boots.
Do not lay tools or metal parts on top of batteries.
Disconnect charging source prior to connecting or disconnecting battery terminals.
• Servicing of batteries should be performed or supervised by personnel knowledgeable of
batteries and the required precautions. Keep unauthorized personnel away from batteries.
• When replacing battery, replace with same type.
• Do not connect any additional batteries by yourself.
• Symbol for On/Off is displayed and dened.
•CAUTION: To reduce the risk of re, connect only to a circuit provided with 20 amperes
maximum branch circuit overcurrent protection in accordance with the National Electrical
Code, ANSI/NFPA 70.
Important Safety Instructions - Save These Instructions
Table of Contents
Important Safety Instructions..................................................................... 2
Table of Contents ........................................................................................ 2
Introduction.................................................................................................. 3
1. Presentation............................................................................................. 3
2. Installation................................................................................................ 5
3. Operation.................................................................................................. 5
4. Audible Alarms ........................................................................................ 6
5. Maintenance and Storage....................................................................... 7
6. Troubleshooting ...................................................................................... 7
7. Specications .......................................................................................... 8

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Introduction - Save These Instructions
Intelligent Microprocessor Control
The SBK350 STABILINE Uninterruptible Power Supply is an advanced line-
interactive UPS based on microprocessor control. This means that it operates with
the newest technology, high performance and powerful function.
The SBK350 provides pure, reliable AC power to the critical loads - protecting
them from utility power blackout, swells, sags, surges and interference. The loads
could include sensitive medical instruments, small servers, workstations, personal
computers, telecommunication systems, and industrial automation equipment.
Under normal power conditions, the line-interactive design enables the system to
adjust and lter power uctuations continuously and automatically. In the event of a
power failure, it can provide immediate back-up power from the battery without any
interruption. Complete transference will be achieved within 4 milliseconds, with no
interruption.
When the utility power is connected, the UPS charger will work automatically even
when the power switch is OFF. Furthermore, in order to save the battery energy, the
UPS can be set to turn itself OFF under BACKUP MODE if none of the connected
loads are operating.
Advanced Battery Management
The visual and audible indicators of the SBK350 present the UPS’s status. A self-test
function lets the UPS detect a weak battery before it is put into service. The UPS
normally performs a self-test at power up and a manual self-test function can be
performed via the ON/OFF power switch
1. Presentation
The UPS is a line interactive uninterruptible power system (UPS). When utility input
is normal, the UPS will provide surge protection and energy to charge the internal
battery. If the utility input is abnormal, the UPS can supply AC power to the loads
immediately.
(1). Utilizing microprocessor based controls, it will minimize the dependency on
hardware, ...maximize system exibility and optimizes the assurance of reliability.
(2). Automatic frequency selection to match with utility power.
(3). High-grade battery charger to prolong battery’s life and fully charge the battery.
(4). Overload protection both in line and battery mode.

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1.1 Front View
ON/OFF/TEST/SILENCE Power Switch
Press the ON/OFF/TEST/SILENCE power switch
until the beep stops to turn ON or to turn OFF the
UPS. When the UPS is working under normal (utility
present) LINE MODE, the UPS’s self-test function
can be activated by pressing the ON/OFF power
switch for less than 1 second.
In BACKUP MODE, press the ON/OFF power switch about 1 second to activate the
UPS’s SILENCE function.
LED (Green Color) Indicator
The LED indicator indicates the UPS’s status. The indicator is illuminated steady
when the UPS is supplying utility power to the connected loads (LINE MODE).
The LED indicator ashes slowly (about once every 2 seconds) when the UPS
is supplying battery power to the connected loads (BACKUP MODE). The LED
indicator ashes rapidly (about once every 0.5 second) when the loads connected to
the UPS exceed the UPS’s capacity (OVERLOAD).

1.2 Rear Panel
AC INPUT POWER
Review the utility input power to make sure that the utility
voltage matches that of the SBK350 (120 VAC). Plug the
UPS power cord into a grounded wall outlet.
INPUT CIRCUIT BREAKER
It trips when the connected loads exceed the UPS’s
capacity.
UPS RECEPTACLES
When utility power is normal (LINE MODE), the UPS
receptacles are powered by utility power with the AVR
function activated. Higher or lower utility voltage will be
regulated by the AVR function. When utility power has failed, the UPS will be in
BACKUP MODE and the UPS receptacles are powered from the battery.
CONVENIENCE OUTLET
The UPS provides for one convenience receptacle. When utility power is present to
the UPS, this receptacle will provide utility power with voltage spike ltering.
Figure B
SBK350
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
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2. Installation
Inspect the UPS upon receipt. Remove the rubber protective piece covering the ON/
OFF/TEST/SILENCE power switch on the front panel. The packaging is recyclable,
keep it for reuse or dispose of properly.
2.1 Placement:
Install the UPS in a protected area with adequate ventilation and free of excessive
dust. Do not operate the UPS where the temperature and humidity are out of the
specied limits.
2.2 Connect to Utility:
Review the utility input power to make sure that the utility voltage matches that of the
SBK350 (120 VAC). Plug the UPS power cord into a grounded wall outlet.
2.3 Charge the Battery:
The UPS charges its battery whenever it is connected to utility power. For best
results, connect the UPS to the input power source and allow the battery to charge
for at least 8 hours prior to initial use.
2.4 Connect the Loads:
Connect the power cord of each load to be UPS protected (such as a personal
computer) to the UPS receptacles. One convenience receptacle is provided for a
non-UP protected load.
CAUTION: Never connect a laser printer or plotter to the UPS outlets. A
laser printer or plotter periodically draws signicantly more
power than when it is idle, and may overload the UPS.
3. Operation
3.1 Turn UPS on with Green Mode Enabled
The Green Mode Function automatically shuts down the UPS under a no load or light
load condition (less than 15 watts) when in the BACKUP MODE. The Green Mode
Function is automatically enabled during normal turn on by pressing and holding the
ON/OFF power switch until the beep stops.
ATTENTION: With the Green Mode Function enabled the UPS will automatically
shutdown after approximately 4 minutes if the connected loads
are not operating during a power failure. Once the utility power
returns, the UPS will return to normal LINE MODE operation.
CAUTION: Never connect a laser printer or plotter to the UPS. These devices
draw signicantly more power operating than they do at idle.