American Power Conversion 350-550 User Manual

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The Back-UPS ES indicates operating status using a combination of visual and audible indicators. Use the following table to identify the status of the Back-UPS ES.
Status Indicators


Back-UPS® ES 350/550

User’s Guide


Connect Battery

1 For safety, theBack-UPSES is shipped with one battery wire disconnected. TheBack-UPSES will not operate until the wire is connected to the touch safe battery terminal.NOTE: Small sparks may occur during battery connection. This is normal.


TURN the Back-UPSES over and

slide the battery compartment

cover off of the battery housing.


LIFT the battery out of the compartment and connect the black wire to the negative (-)battery

terminal. Ensure the batteries are installed as shown below.

Slide the battery compartment cover 3 completely onto theBack-UPSES.

Back-UPSES 350

Back-UPSES 550


Battery Backup Surge Protection

These outlets are powered whenever the Back-UPSES is switched ON. During a power outage or other utility problems

Connect Equipment

Place the Back-UPSES to avoid:

- Direct sunlight - Excessive heat - Excessive humidity or contact with fluids

Plug the Back-UPSES power cord directly into a wall outlet; not a surge protector or power strip.

(brownouts, over-voltages),these outlets will be powered for a limited time by theBack-UPSES. Plug your computer, monitor, and two otherdata-sensitivedevices (external disk or tape drive) into these outlets.



















w w




































Battery BackupSurge Protection

Connect FAX/Modem/Phone

Back-UPSES protects a single line(2-wire)fax, modem or phone from surges when it is connected through theBack-UPSES as shown.

Connect Computer Cable

The supplied cable and software provide automatic file saving and shutdown of the operating system in the case of a sustained power outage.

Connect the cable to the Data Port of the Back-UPSES. Connect the other end of the cable to the USB port on your computer. The software will automatically find the USB Port of your computer.




Surge Protection Only


5 5 0

Power On

Replace Battery
















Push to Reset



Circut Breaker













Data Port


CAUTION - Refer to bottom of unit for safety markings.

Surge Protection Only

These outlets provide full-timeprotection from surges even if theBack-UPSES is switched OFF. Plug your printer, fax machine, scanner, or other peripherals that do not need battery power into these outlets.





3 Power On and Install Software

Press the ON/OFF switch to power the unit ON.

A single short beep and the green “Power On” indicator confirms that Back-UPSES is on and ready to provide protection.

The Back-UPSES should charge for at least 16 hours to ensure sufficient runtime. The unit is being charged whenever it is connected to utility power, whether the unit is turned ON or OFF.

If the red Building Wiring Fault indicator (located on the end near the power cord) is lit, your building wiring presents a shock hazard that should be corrected by a qualified electrician.

Install the PowerChute Personal® Edition software

Place the PowerChute Personal Edition CDROM into your computer and follow the installation instructions on the screen.


Visual Indications

Audible Indication

Alarm Terminates


(Power On - Green)




(Replace Battery - Red)







Power On - UPS is supplying conditioned

Power On LED - ON


Not applicable.

utility power to the load.










On Battery - UPS is supplying battery

Power On LED

- ON (off

Beeping 4 times every

UPS transfers back to

power to the load connected to the Battery

during beep)


30 seconds

Power On operation, or





when UPS is turned off.






Low Battery Warning - UPS is supplying

Power on LED

- flashing

Rapid beeping (every

UPS transfers back to

battery power to the load connected to the



1/2 second)

normal operation, or

Battery outlets and the battery is near




when UPS is turned off.










Replace Battery - The battery is

Replace Battery LED -

Constant tone

UPS turned off with the





power switch.

The battery is in need of charging or is at

Power On and Replace

Constant tone


the end of its usual life and must be

Battery LEDs-














Overload Shutdown - During On Battery



Constant tone

UPS turned off with the

operation a battery power supplied outlet




power switch.

overload was detected.










Sleep Mode - During On Battery operation



Beeping once every 4

Utility power is restored,

the battery power has been completely




or if utility power is not

exhausted and the UPS is waiting for utility




restored within 32

power to return to normal.




seconds, or the UPS is





turned off.





Building Wiring Fault - Your building

Building Wiring Fault LED


UPS is unplugged, or is

wiring presents a shock hazard that should

(red) - ON



plugged into a properly

be corrected by a licensed electrician.




wired outlet.






See the Troubleshooting section for additional assistance.

990-4993Copyright © 2006 American Power Conversion Corporation

APC, Back-UPSand PowerChute are registered trademarks of American Power Conversion Corp.


All other trademarks are property of their respective owners.




Use the table below to solve minor Back-UPSES installation or operation problems. Consult APC Online Technical Support or call APC




Technical Support for assistance with problems that cannot be resolved using the table below:





Probable Cause









Back-UPSES will not turn on.


Battery is disconnected and utility power is not available at


Connect the battery (see Connect Battery) and ensure power is available at the wall









the wall outlet.












No power available at the Surge Protection


Surge Protection Only outlets have been overloaded.


Reduce the amount of equipment plugged into Surge Protection Only outlets.




Only outlets.




Ensure that the fuse or circuit breaker for the outlet is not tripped, and that the wall






Utility power not available at the wall outlet.









switch controlling the outlet (if any) is in the ON position.




Connected equipment loses power.


Equipment is connected to the “Surge Protection Only”


Ensure that the equipment you want to stay powered during a power failure is







plugged into the “Battery Backup/Surge Protection” outlets and NOT the “Surge







Protection Only” outlets.





The Back-UPSES is overloaded.


Make sure that the equipment plugged into the outlets of the unit are not







overloading the capacity of the unit. Try removing some of the equipment and see if







the problem continues.





PowerChute Personal Edition software has performed a


The Back-UPSES is operating normally.





shutdown due to a power failure.








The Back-UPSES has exhausted its available battery


The Back-UPSES can only operate on battery power for a limited amount of time.







The unit will eventually turn off when the available battery power has been used.







Allow the unit to recharge for 16 hours before continuing use of the unit.





Connected equipment does not accept the step-


The output waveform is designed for computers and computer-relatedequipment. It





approximated sine waveform the Back-UPSES.


is not designed for use with motor-typeequipment.





The Back-UPSES may require service.


Contact APC Technical Support for further troubleshooting.











The Power On indicator is lit and the Back-


The Back-UPSES is using battery.


The Back-UPSES is operating normally and using battery power. Once On Battery,




UPS ES is beeping four times every 30




you should save your current work, power down your equipment, and turn the unit








OFF. Once normal power is restored, you may turn the unit back ON and power








your equipment.












The Power On indicator flashes once per


Battery capacity is low (about 2 minutes of use remaining).


The Back-UPSES is about to shut off due to a low battery charge condition! When



second and the Back-UPSES beeps once




the unit beeps once every second, the battery has about 2 minutes of power



per second at the same time.




remaining. Immediately power down your computer and turn the unit OFF. When







normal power returns, the unit will recharge the battery.











Building Wiring Fault indicator is lit.


Your building wiring presents a shock hazard. Using the


Call a qualified electrician for service.






Back-UPSwith this condition will void the warranty.














Inadequate runtime.


The battery is not fully charged.


Allow the unit to charge by leaving it plugged into the wall at least 16 hours.





Battery is near the end of useful life.


As a battery ages, the amount of runtime available will decrease. You can replace







the battery by ordering one at Batteries also age prematurely if the







Back-UPSES is placed near excessive heat.

























120 Vrms








50 - 60 Hz (autosensing)






Brownout Transfer

88 Vrms, typical







139 Vrms, typical






UPS Capacity (4 outlets)

350 VA / 200 W

550 VA / 330 W






Surge Capacity (8 outlets)

12 Amps (including UPS output)







115 Vrms + 8%


On Battery

(step-approximatedsine wave)






Frequency - On Battery

50-60Hz+ 1 Hz






Transfer Time

6 ms typical, 10 ms maximum





Protection and Filter

AC Surge Protection

Full time, 375 joules






Telephone Surge Protection

Single line (2-wire)






EMI/RFI Filter

Full time






AC Input

Resettable circuit breaker







Sealed, maintenance-freelead acid






Average Life

3 - 5 years depending on the number of discharge



cycles and environmental temperature






Net Weight

9 lbs. (4 kg.)

13 lbs. (6 kg.)






Dimensions (H x W x D)

3.4" x 10.9" x 7.1"



(8.6 x 27.7 x 18.0 cm)






Operating Temperature

+32oF to 104oF (0oC to 40oC)


Storage Temperature

+5oF to 113oF(-15oCto 45oC)


Operating Relative Humidity

0 to 95% non-condensing






Operating Elevation

0 to 10,000 ft (0 to 3,000m)






Safety Approvals

UL 1778 listed, cUL certified per



CSA standard C22.2 No. 107.1, NOM-001






EMC Compliance

FCC part 68, FCC part 15 Class B



Notice: This device complies with part 15 of



the FCC rules. Operation is subject to the



following two conditions: (1) This device may



not cause harmful interference, and (2) This



device must accept any interference received,



including interference that may cause



undesired operation.




On the bottom of this equipment is a label that



contains, among other information, the FCC



registration number and ringer equivalence



number (REN) for

this equipment. If



requested, this information must be provided



to the telephone company.





Order Replacement Battery

Replace with an APC qualified battery. Replacement batteries can be ordered from (valid credit card required). For a Back-UPSES 350, orderRBC35 as directed by APC Technical Support. For aBack-UPSES 550, orderAPCRBC110.


The standard warranty is 3 years from the date of purchase. APC’s standard procedure is to replace the original unit with a factory reconditioned unit. Customers who must have the original unit back due to assigned asset tags and set depreciation schedules must declare such a need at first contact with APC Technical Support. APC will ship the replacement unit once the defective unit is received by the repair department or cross-shipupon the provision of a valid credit card number. The customer pays for shipping to APC, and APC pays ground freight transportation costs back to the customer.


Please DO NOT RETURN Back-UPSES to the place of purchase under any circumstances.

1.Consult the Troubleshooting section to eliminate common problems.

2.Verify the battery is connected (see Connect Battery) and that the Circuit Breaker is not tripped (seeTroubleshooting section).

If you still have problems or questions, please contact APC via the internet or at one of the phone numbers listed below.

3.Before contacting APC, please be sure to record the date purchased, UPS model, and serial number (on bottom of unit).

4.Be prepared to troubleshoot the problem over the telephone with a Technical Support Representative. If this is not successful, the representative will issue a Return Material Authorization Number (RMA#) and a shipping address.

5.Pack the unit in its original packaging. If the original packaging is not available, ask APC Technical Support about obtaining a new set. Pack the unit properly to avoid damage in transit. Never use foam beads for packaging. Damage sustained in transit is not covered under warranty (insuring the package for full value is recommended).

6.Write the RMA# on the outside of the package.

7.Return the unit by insured carrier to the address given to you by APC Technical Support.

APC Contact Information

Online Technical Support

Web Site




+52.292.0253 / 52.292.0255





6.50 in.

(165 mm)

Wall Mounting Template