Emerson 350-500VA, PA500-120U Maintenance, Warranty Registration, Troubleshooting Chart

TROUBLESHOOTING TROUBLESHOOTING CHART

The information below indicates various symptoms a user may encounter in the event the PowerSure PST experiences a problem. Use this information to determine whether external factors caused the problem. See Troubleshooting Chart for suggested remedy.

If the UPS fails to operate properly, turn off the unit and repeat the steps in the Installation section of this manual. If the prob- lem persists, refer to the chart below:

1.The Fault indicator illuminates, indicating the UPS detected a problem.

Fault	Utility/Battery
Indicator	Indicator

Site Wiring

Fault Indicator

2.An alarm sounds, alerting that the UPS requires attention. The alarm can be silenced except for low battery, overload and overtemperature warning conditions.

3.Utility and/or Battery indicators may be illuminated as a diagnostic aid to the operator, as shown below:

Problem	Cause	Solution
		Check the circuit
		protector on the side of
		the UPS. If it is tripped,
		reset it and restart the
UPS will not	Overload/	UPS.
		For further help, call
start	Short circuit
		your local dealer,
		Liebert representative
		or the Liebert
		Worldwide Support
		Group.
	UPS not	Plug in power cord
	plugged in	securely.

GUIDE TO STATUS INDICATORS

Fault	Site Wiring	Utility/Battery
(Red)	Fault (Amber)	(Green)					Diagnosis/
							Audible Alarm
!			+			-
Normal Mode
							UPS is
—	—			ON			operating in
							Normal Mode;
							no beep.
							Battery Test
—	—			Flashing			has been
							initiated; no
							beep.
—	Flashing			ON			Site Wiring
							Fault; no beep.
							The unit is
Flashing	—		ON				overloaded;
							beep every
							half-second
							The UPS has
ON	—			ON			failed;
							continuous
							beep
							Unit has shut
Flashing	—				—		down due to
							overload;
							continuous
							beep
							The UPS shut
ON	—				—		down due to
							failure;
							continuous
							beep
Battery Mode
							The UPS is
—	—			Flashing			operating in
							Battery mode;
							beep every 5
							seconds.
—	—			Flashing			UPS battery is
							low; beep every
							half-second
							The unit is
Flashing	—			Flashing			overloaded;
							beep every
							half-second
							The UPS has
ON	—			Flashing			failed;
							continuous
							beep

MAINTENANCE

The PowerSure PST UPS requires very little maintenance. Follow these practices to prevent problems.

CLEANING THE UPS

The following will help ensure trouble-free operation for years:

•Vacuum dust from the ventilation intake occasionally.

•Wipe the cover periodically with a dry cloth.

MAINTAINING BATTERIES

The batteries are valve-regulated, nonspillable, lead acid and must be kept charged to retain their design life. The UPS continuously charges the batteries when connected to the utility supply, even while the UPS is switched off.

When storing the UPS, it is recommended to plug in the UPS for at least 24 hours every four to six months to ensure full recharge of the batteries.

	Circuit	Reset the circuit
	protector	protector and restart the
	tripped	UPS.
	Power not	Have the utility
	available at
		receptacle checked by a
	utility
UPS starts		qualified electrician.
	receptacle
on battery,
but will not
		Wait until the voltage
switch to AC
	Input voltage	rises to an appropriate
	below	level or have the utility
	threshold	receptacle checked by a
		qualified electrician.
		Wait until voltage lowers
	AC	to an appropriate level
		or have the utility
	overvoltage
		receptacle checked by a
		qualified electrician.
	Overload/	Check the circuit
	Short circuit	protector on the rear of
		the UPS. If it is tripped,
		reset it and restart the
		UPS.
		If the problem persists,
UPS shuts		disconnect some of the
		equipment from your
down, Fault	Internal UPS	UPS—the total wattage
Indicator lit		of your equipment must
	fault	not exceed the capacity
		of the UPS. For further
		help, call your local
		dealer, Liebert
		representative or the
		Liebert Worldwide
		Support Group.
Site Wiring	Line-neutral	Have the utility checked
Fault	reversal/Poor
		by a qualified
Indicator	ground
		electrician.
illuminated	connection
UPS not	Overload	Reduce load.
	Battery not
providing
expected	charged due	Recharge battery.
backup time	to a recent
	outage

WARRANTY REGISTRATION

To register for warranty protection:

•Visit the Quick Links section of our Web site at: http://www.liebert.com

•Click on Product Warranty Registration and fill in the form.

IF YOU HAVE ANY QUESTIONS,

PLEASE CONTACT US AT:

US: 800-222-5877

Outside the US: 614-841-6755

upstech@liebert.com

SL-23275QS (9/03) Rev. 0