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unqualified to replace the battery, do not open battery door.  Refer to 
qualified service personnel. 

 

INTRODUCTION & SYSTEM DESCRIPTION

 

 

 

Congratulations on choosing the Liebert PowerSure™.  It provides continuous, 
conditioned power to microcomputers and other data processing equipment. 

 

Upon generation, AC power is clean and stable.  However, during transmission, it 
may be subject to load variations or accidents which cause power problems like 
low voltage, voltage spikes, or complete power failure.  These problems may 
interrupt computer operations, cause data loss, or even damage equipment. 

 

The UPS provides protection from many of these disturbances.  It smoothes out 
voltage variations and, in the event of complete power failure, it supports 
equipment long enough for an orderly shutdown.  These compact UPS units are 
available in three ratings: 250, 400, and 600 VA.  This manual includes 
specifications for each model. 

 

Normally, the UPS filters and connects AC utility input power to its AC outputs; 
but  when the UPS senses a power failure, it lights the battery LED (400 & 600 
VA only) and provides AC power to equipment through a maintenance free, 
sealed, lead acid battery. 

 

The UPS contains a counter which automatically initiates a 15-second battery 
test every 7 days and upon start-up.  The UPS resets the counter after back-up 
operation, manual battery test, or if the UPS is switched OFF.  The operator may 
perform a manual battery test by pressing the BATTERY TEST button on the 
back of 400 and 600 VA models. 

 

A control circuit monitors power input and battery condition and upon sensing a 
fault, sounds an alarm and flashes a visual indication of the UPS status.  In 
addition, the 400VA and 600VA UPS models have a communications port which 
enables the UPS to inform a computer equipped with SiteNet® software of the 
power failure.  SiteNet® automatically saves data and performs an orderly 
shutdown.  Cables and software are available as optional computer/LAN 
Interface Kits.  Consult your dealer for the kit suitable for your application. 

 

CONDITIONS OF USE:  The utility receptacle must be within 6 feet of the UPS. 
This model utilizes a 110V to 120V AC 60 Hz supply voltage.  Models are 
available for other supply voltages. 

 

Your UPS is designed to protect only Communication and Data Processing 
equipment.  Maximum load must not exceed that shown on UPS rating label.  If  
uncertain, consult your dealer or representative. 

 

Placing magnetic storage media on top of the UPS may result in data corruption. 

 

CAUTION:  This equipment complies with Part 15, Subpart B of FCC rules for 
Class B computing devices.  Equipment operation in residential areas may cause 
interference to radio and TV reception.  The operator must take necessary steps 
to correct interference. 

 

 
 

Summary of Contents for PowerSure PS250-60S

Page 1: ...PowerSure POWER PROTECTION Uninterruptible Power System 250 VA 600 VA 115 V USER S MANUAL English R PS250 60S 250 VA PS400 60S 400 VA PS600 60S 600 VA...

Page 2: ...es or corrosive substances 6 WARNING Do not modify cable Consult dealer if connector does not match equipment UPS must be grounded at all times while in use Turn UPS OFF before unplugging or the safet...

Page 3: ...art up The UPS resets the counter after back up operation manual battery test or if the UPS is switched OFF The operator may perform a manual battery test by pressing the BATTERY TEST button on the ba...

Page 4: ...If any appear faulty or damaged contact your dealer immediately Store the packaging in a safe place for possible future shipment of UPS 3 Place the UPS on a sturdy dry surface in a well ventilated ar...

Page 5: ...be unlit 5 Check the operation of your equipment It should display normal operational conditions 6 If any function provides an abnormal condition refer to the troubleshooting guide later in this manu...

Page 6: ...NDOWS and many others SiteNet 1 software automatically performs an orderly shutdown of computer operating systems in the event of a power outage and or low battery conditions The SiteNet 1 kit supplie...

Page 7: ...s at 140VAC Factory setting is 135 VAC Option Switch 3 4 Low Voltage Transfer Select Low voltage transfer is the voltage level at which battery operation starts You may set the low voltage transfer of...

Page 8: ...OFF UPS and unplug it from utility supply CAUTION Observe proper precautions When replacing batteries use the same number and type of batteries Proper battery disposal required Refer to local codes f...

Page 9: ...ity overvoltage Wait until utility voltage rises to appropriate level Check circuit breaker at rear of UPS 9 If it is activated reset it and restart the UPS See Resetting Circuit Breaker If problem pe...

Page 10: ...Audible Alarm Status NORMAL START UP On Flash Once then Off Off Single Beep and then Off Operate Start Up Test Fail Off Off On Continuous for 15 Sec and then Off Will Not Start Input Frequency Mismat...

Page 11: ...Hz 57 63 Hz Output Voltage on battery 115 VAC 5 Output waveform on battery Stepped Sine Wave Max Output Current at 120 V 2 1 A 3 3A 5 A Output Frequency 50 or 60 Hz 5 Max Overload Capacity 115 of Powe...

Page 12: ...unauthorized modification alteration or repair use beyond rated capacity or improper installation maintenance application or use including without limitation use in a manner contrary to the accompanyi...

Page 13: ...ecaution has been taken to ensure accuracy and completeness in this manual Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information...

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