APC 420 - User Manual

APC Smart-UPS 420/620
230 VAC User’s Manual
990-4200 Revision 1 12/97
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
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 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 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.

Summary

Initial Start-Up

Inspection and Placement

Inspect the UPS upon receipt for damage and ensure proper installation.

Connect to Utility Power

Connect the UPS to an active AC power source.

Connect the Loads

Plug connected equipment into the UPS output connectors.

Network Surge Suppression

Optional: Connect network cables for surge protection.

Computer Interface Port Connection

Optional: Connect interface cable for power management software.

Charge the Battery

The UPS battery charges automatically when connected to utility power.

Operating Instructions and States

Switch On and Off

Instructions for turning the UPS on and off, and using it as a master switch.

UPS Self-Test

The UPS performs automatic self-tests for battery and operation status.

Storage Conditions

Guidelines for storing the UPS in a cool, dry location with a charged battery.

Extended Storage Battery Charging

Recommendations for charging the battery during extended storage periods.

On Battery Operation

Indicators and alarms when the UPS is running on battery power.

Low Battery Warning

UPS behavior when battery energy reserves are low.

Overload Condition

Indicators and alarms when the connected load exceeds UPS capacity.

Shutdown Mode

UPS behavior when commanded to shut down, typically to conserve battery.

Cold Start Procedure

How to start the UPS from battery power without utility power.

Battery Replacement

Replacement Battery Information

Information on ordering and identifying correct replacement battery kits.

Battery Replacement Procedure

Step-by-step instructions for safely replacing the UPS battery.

Troubleshooting Common Issues

UPS Will Not Turn On

Diagnosing why the UPS unit is not powering on.

UPS Fails to Turn On or Off

Resolving issues where the UPS cannot be switched on or off.

UPS Operates on Battery Unexpectedly

Troubleshooting when the UPS switches to battery power without a utility outage.

UPS Beeps Occasionally

Interpreting occasional beeping sounds from the UPS.

Short Backup Runtime

Addressing situations where the UPS provides less backup time than expected.

Flashing Indicator Lights

Understanding meanings of various flashing indicator light combinations.

Site Wiring Fault Indicator

Resolving issues indicated by the site wiring fault light.

All Indicators Off or UPS Not Operating

Diagnosing a completely non-operational UPS unit.

Replace Battery Light Illuminated

Action required when the replace battery indicator is on.

Overload Light Illuminated or Flashing

Resolving issues indicated by the overload light.

Service and Support

Service Procedure

Steps to follow if the UPS requires service or repair.

Packaging for Return

Instructions for properly packing the UPS for shipment and return.

Return Merchandise Authorization (RMA)

Marking the package with the RMA number for service.

Return Shipping Instructions

How to return the UPS via insured, prepaid carrier.

APC 420 Specifications

General

Nominal Output Voltage	230V
Topology	Line Interactive
Waveform Type	Stepped approximation to a sinewave
Nominal Input Voltage	230V
Input Voltage	160 - 286 V
Number of Outlets	4
Outlet Types	IEC 320 C13
Output Frequency	50/60 Hz
Input Frequency	50/60 Hz
Input Connections	IEC 320 C14
Control panel	LED status indicators