American Power Conversion 280, 420, 650 User Manual

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Initial Start-Up

To obtain warranty coverage, please fill out and return the warranty registration card now.


Inspect the UPS upon receipt. Notify the carrier and dealer if there is damage. The packaging is recyclable; save it for reuse or dispose of it properly.


Install the UPS in a protected area that is free of excessive dust and has adequate air flow. Do not operate the UPS where the temperature and humidity is outside the specified limits.

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the warranty.

Connect to Utility

Operating Instructions

Switch On — Switch Off

With the UPS plugged in, press and release the on/off/test button to supply power to the

loads plugged into the Battery Power Supplied outlets. The equipment plugged into the Full Time Surge Protected outlet (the top outlet) has power whenever the UPS is connected to an active AC power source.

The Battery Power Supplied loads are immediately powered while the UPS performs a self-test.Press and release the button again to turn off power to the loads. It may be convenient to use the UPS as a master on/off switch for the protected equipment.

The on-lineLED illuminates when the UPS is supplying utility power to the loads.


The UPS performs a self-testautomatically when turned on, and every two weeks thereafter (by default). Automaticself-testeases maintenance requirements by eliminating the need for periodic manualself-tests.

During the self-test,the UPS briefly operates the loadson-battery.If the UPS passes theself-test,it returns toon-lineoperation.

If the UPS fails the self-testit immediately returns toon-lineoperation and lights the replace battery LED.



230 VAC User’s Manual

Full Time Surge Protected Outlet

The top-mostwhite outlet provides surge

protection only. It is rated for 500VA (300W).

Equipment plugged into this outlet should require surge protection, but should not require power during a utility power failure. This could include a laser printer, scanner, fax, or audio device.

Warning: The top outlet has voltage as long as the UPS is connected to an active AC power source. It has voltage even when the UPS is turned off.

Battery Power Supplied Outlets

The lower three outlets provide protection

from surges and battery backup protection. Plug a computer, monitor, and other “datacritical” devices into these outlets.Never plug a

laser printer into the Battery Power Supplied outlets.

The loads are not affected by a failed test. Recharge the battery overnight and perform the self-testagain. If the replace battery LED is still on, replace the battery using the Replacing the Battery procedure.

On Battery

During on-batteryoperation, theon-battery

LED illuminates and the UPS sounds an audible alarm consisting of 4 beeps every 30

seconds. The alarm stops when the UPS returns to on-lineoperation. The alarm may also be disabled using PowerChute®plus power management software.

Low Battery

When the UPS is operating on-batteryand the energy reserve of the battery runs low, the UPS beeps continuously until the UPS shuts down from battery exhaustion or returns toon-lineoperation.


When loads exceed the UPS’s capacity, the

overload LED illuminates and the UPS emits a sustained tone. The alarm remains

on until the overload is removed. Disconnect nonessential load equipment from the UPS to eliminate the overload.

If the overload is severe, the input circuit breaker may trip (the resettable center plunger of the circuit breaker pops out). Disconnect nonessential load equipment from the UPS to eliminate the overload and press the plunger back in.

If there is AC power and the circuit breaker does not trip during overload, the loads are still powered. If the circuit breaker trips or the UPS attempts to transfer to battery, the loads’ power will be shut off. Turn the UPS off then back on to power the loads.

990-2045Revision 1 12/97

Connect the Loads

Plug the loads into the output connectors on the rear of the UPS. To use the UPS as a master on/off switch, make sure that all of the loads are switched on.

Connect Telephone Surge Suppression (Optional)

Connect a single line telephone cable from the telephone jack into theRJ-11telephone surge protection IN jack on the back of the UPS.

Connect from the OUT jack to the computer with telephone cable.

Connect Computer Interface

Port (Optional)

PowerChute® plus power management software is included with this UPS. Connect the supplied interface cable to the9-pincomputer interface port on the back panel of the UPS. Connect the other end to a dedicated serial port on your computer. See software documentation for installation instructions.

Charge the battery

The UPS charges its battery whenever it is connected to utility power. The battery will charge fully during the first 4 hours of normal operation. Do not expect full runtime during this initial charge period.

Replace Battery

If the battery fails a self-test,the UPS emits short beeps for one minute and the replace battery LED illuminates.

The UPS repeats the alarm every five hours. Perform the self-testprocedure to confirm replace battery conditions. The alarm stops when the battery passes theself-test.

Shutdown Mode

If there is no power, the host connected to the computer interface port can command the UPS to shut down. This is normally done to preserve battery capacity after a controlled shutdown of the protected system. In shutdown mode the UPS stops supplying power to the load. The online and overload LED indicators flash alternately or, if the UPS has shutdown due to a low battery, the UPS will beep once every 4 seconds for approximately 16 seconds. When line power is restored, the UPS will return to on-lineoperation.

Cold Start

Note: Cold start is not a normal operating condition.

When the UPS is off and there is no utility power, it is possible to cold start the UPS to power the loads from the UPS’s battery.

Press and hold the on/off/test button until the UPS begins beeping.

Release the on/off/test buttonduring the beeping to start the UPS.


Storage Conditions

Store the UPS covered and upright in a cool, dry location, with its battery fully charged. Before storing, charge the UPS for at least 4 hours. Disconnect any cables connected to the computer interface port to avoid unnecessarily draining the battery.

Extended storage

At -15to +30 °C (+5 to +86 °F), charge the UPS’s battery every 6 months

At +30 to +45 °C (+86 to +113 °F), charge the UPS’s battery every 3 months.

Replacing the Battery

This UPS has an easy to replace hot-swappablebattery.

Note: Please read the cautions in the APC Safety Guide.

Replacement Batteries

See your dealer or call the number in this manual for information on replacement battery kits. For 280 and 420 models, order RBC 2. For 650 models, order RBC 4.

Battery Replacement Procedure

Battery replacement is a safe procedure, isolated from electrical hazards. You may leave the UPS and loads on for the following procedure.

Note: Once the battery is disconnected, the loads are not protected from power outages.

1.Lay the UPS on its left side. Remove the two screws holding on the battery door and open the door.

Note: It may be necessary to pull the battery door slightly toward the front of the unit in order to open the door fully.

2.Gently pull out the battery by grasping the white tab.


Loosen the wires by wiggling them while pulling straight back from the battery connector.

Connect the new battery in place of the old.

Note: Small sparks at the battery connections are normal

5.Place the new battery in the UPS. Use care to avoid pinching the

6.Close the battery compartment door and replace the screws.

7.Dispose of the old battery properly at an appropriate recycling facility or return it to the supplier in the packing material for the new battery. See the new battery instructions for more information.



Possible Cause


UPS will not turn on.

On/off/test button not pushed.

Press the on/off/test button to



power the UPS and the loads.


UPS input circuit breaker

Reduce the load on the UPS



by unplugging equipment and



reset the circuit breaker by



pressing the plunger back in.

UPS will not turn on or off.

Computer interface problem.

Disconnect the computer



interface. If the UPS now



works normally, check the



interface cable and the



attached computer.

UPS operates on-batteryeven

UPS's input circuit breaker

Reduce the load on the UPS

though normal line voltage is


by unplugging equipment and

thought to exist.


reset the circuit breaker by



pushing the plunger back in.

UPS beeps occasionally.

Normal UPS operation.

None. The UPS is protecting



the load.

UPS does not provide

The UPS's battery is weak due

Charge the battery. The UPS's

expected back up time.

to recent outage or is near the

batteries require recharging


end of its service life.

after an extended outage.



Batteries age faster when put



into service often and when



operated at elevated



temperatures. If the battery is



near the end of its service life,



consider replacing the battery



even if the replace battery



indicator is not yet lit.

On-lineand overload indicators

The UPS was shutdown by

None. The UPS will restart

are flashing alternately.

PowerChute® plus software.

automatically when utility power




All indicators are flashing.

Internal UPS fault.

Do not attempt to use the UPS.



Turn the UPS off and have it



serviced immediately.

The UPS operates normally,

Building wiring error such as

Have a qualified electrician

but the site wiring fault

missing ground or hot to

correct the building wiring.

indicator is lit.

neutral wire reversal.



Internal UPS fault.

Do not attempt to use the UPS.

indicators only are flashing


Turn the UPS off and have it



serviced immediately.

All indicators are off and the

The UPS is shutdown and the

None. The UPS will return to

UPS is not operating.

battery is discharged from an

normal operation when the


extended power outage.

power is restored and the



battery has a sufficient charge.

The replace battery light is

Weak batteries.

Allow the batteries to recharge



for at least 4 hours. If the



problem persists after



recharging, replace the





Replacement batteries not

Confirm the battery


connected properly.


The overload light is

The UPS is overloaded.

Reduce the load on the UPS

illuminated or flashing


by unplugging equipment.

For Computer Interface Port Specifications, see the APC Website.


If the UPS requires service do not return it to the dealer!

Follow these steps:

1.Use the Troubleshooting section of theQuick Reference Guide to eliminate common problems.

2.Verify that no circuit breakers are tripped. A tripped circuit breaker is the most common UPS problem!

3.If the problem persists, call customer service or visit the APC Internet Website (

Note the model number of the UPS, the serial number, and the date purchased. A technician will ask you to describe the problem and try to solve it over the phone, if possible. If this is not possible the technician will issue a Return Merchandise Authorization Number (RMA#).

If the UPS is under warranty, repairs are free. If not, there is a repair charge.

4.Pack the UPS in its original packaging. If the original packing is not available, ask customer service about obtaining a new set.

Pack the UPS properly to avoid damage in transit. Never use Styrofoam beads for packaging. Damage sustained in transit is not covered under warranty.

Include a letter with your name, RMA#, address, copy of the sales receipt, description of the trouble, your daytime phone number, and a check (if necessary).

5.Mark the RMA# on the outside of the package

6.Return the UPS by insured, prepaid carrier to the address given to you by Customer Service.

North & South America




132 Fairgrounds Road

Ballybritt Business Park

West Kingston, Rhode Island 02892 USA

Galway, Ireland 10800-702000








280 VA



420 VA



650 VA

Acceptable input voltage




0 - 320 VAC


Input voltage (on-lineoperation)*




165 - 283 VAC


Output voltage *




208 - 253 VAC


Input Over Current Protection

Resettable circuit breaker

Frequency limits (on-lineoperation)

47 - 63 Hz (autosensing)

Transfer time

4 ms typical, blackout response time

Maximum load

280 VA



420 VA


650 VA


180 W



260 W


410 W

On-batteryoutput voltage




230 VAC



50 or 60 Hz, ±0.1 Hz; unless synchronized to utility




during brownout




Stepped sine-wave


Output Over Current Protection

Overcurrent and short-circuitprotected, latching



shutdown on overload


Battery type

Spill proof, maintenance free, sealed lead-acid

Typical battery life

3 to 6 years, depending on number of discharge


cycles and ambient temperature

Typical recharge time

2 to 5 hours from total discharge

Operating temperature

0 to +40 °C (+32 to +104°F)

Storage temperature

-15to +45°C (+5 to +113°F)

Operating and storage relative humidity

0 to 95%, non-condensing

Operating elevation

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

Storage elevation

0 to +15,000 m (0 to +50,000 ft)

Audible noise at 1 m (3 ft)




<45 dBA


Size (H x W x D)


16.8 x 11.9 x 36.8 cm




(6.6 x 4.7 x 14.5 in.)


Weight - net (shipping)

8.53 (10.34) kg



10.0 (10.9) kg


10.7 ( 12.34) kg


18.8 (22.81) lb.



22.0 (24.0) lb.


23.51 (27.21) lb.

Safety and approvals

VDE licensed to EN50091 and EN60950

EMC certification






Electromagnetic immunity

IEC 801-2level IV,801-3level III,801-4level IV

* User-adjustablethrough PowerChute® (see software documentation)