American Power Conversion 620 User Manual

Initial Start-Up

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

Inspection

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.

Placement

APC Smart-UPS 420/620

230 VAC User’s Manual

990-4200 Revision 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.

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

Full Time Surge Protected Outlet

The top-most off-white 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 “data-

critical” devices into these outlets. Never plug a

laser printer into the Battery Power Supplied
outlets.

Connect Network Surge Suppression
(Optional)

Connect a single 10Base-T/ 100Base-Tx
network cable into the RJ-45 network surge
protection IN jack on the back of the UPS.

Connect from the OUT jack with network
cabling (not supplied) to a network port on the
computer.

Connect Computer Interface
Port (Optional)

PowerChute® plus power management software is
included with this UPS. Connect the supplied
interface cable to the 9-pin computer 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.

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-line LED illuminates when the UPS
is supplying utility power to the loads.

Self-test

The UPS performs a self-test automatically when
turned on, and every two weeks thereafter (by
default). Automatic self-test eases maintenance
requirements by eliminating the need for periodic
manual self-tests.

During the self-test, the UPS briefly operates the
loads on-battery. If the UPS passes the self-test, it
returns to on-line operation.

If the UPS fails the self-test it immediately
returns to on-line operation and lights the
replace battery LED.

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

On Battery

During on-battery operation, the on-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-line operation. The alarm may also be disabled
using PowerChute® plus power management
software.

Low Battery

When the UPS is operating on-battery and the
energy reserve of the battery runs low, the UPS
beeps continuously until the UPS shuts down from
battery exhaustion or returns to on-line operation.

Overload

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.

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-test procedure to confirm replace
battery conditions. The alarm stops when the battery
passes the self-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-line operation.

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 button during the beeping

to start the UPS.

Storage

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 -15 to +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-swappable battery.

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.

Troubleshooting

Problem Possible Cause Solution

UPS will not turn on. On/off/test button not pushed. Press the on/off/test button to

UPS input circuit breaker
tripped.

UPS will not turn on or off. Computer interface problem. Disconnect the computer

UPS operates on-battery even
though normal line voltage is
thought to exist.

UPS beeps occasionally. Normal UPS operation. None. The UPS is protecting
UPS does not provide

expected back up time.

On-line and overload indicators
are flashing alternately.

All indicators are flashing. Internal UPS fault. Do not attempt to use the UPS.

The UPS operates normally,
but the site wiring fault
indicator is lit.
On-line and on-battery
indicators only are flashing

All indicators are off and the
UPS is not operating.

The replace battery light is
illuminated.

The overload light is
illuminated or flashing

For Computer Interface Port Specifications, see the APC Website.

UPS's input circuit breaker
tripped.

The UPS's battery is weak due
to recent outage or is near the
end of its service life.

The UPS was shutdown by
PowerChute® plus software.

Building wiring error such as
missing ground or hot to
neutral wire reversal.
Internal UPS fault. Do not attempt to use the UPS.

The UPS is shutdown and the
battery is discharged from an
extended power outage.

Weak batteries. Allow the batteries to recharge

Replacement batteries not
connected properly.
The UPS is overloaded. Reduce the load on the UPS

power the UPS and the loads.
Reduce the load on the UPS
by unplugging equipment and
reset the circuit breaker by
pressing the plunger back in.

interface. If the UPS now
works normally, check the
interface cable and the
attached computer.
Reduce the load on the UPS
by unplugging equipment and
reset the circuit breaker by
pushing the plunger back in.

the load.
Charge the battery. The UPS's
batteries require recharging
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.
None. The UPS will restart
automatically when utility power
returns.

Turn the UPS off and have it
serviced immediately.
Have a qualified electrician
correct the building wiring.

Turn the UPS off and have it
serviced immediately.
None. The UPS will return to
normal operation when the
power is restored and the
battery has a sufficient charge.

for at least 4 hours. If the
problem persists after
recharging, replace the
batteries.
Confirm the battery
connections.

by unplugging equipment.

3. Disconnect the two wires connecting the battery to the UPS.
Loosen the wires by wiggling them while pulling straight back
from the battery connector.

4. Connect the new battery in place of the old.

Note: Small sparks at the battery connections are normal
during connection.

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

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.