Delta Electronics 700VA, 3KVA manual Troubleshooting, Problem, Possible Cause, Solution

7. TROUBLESHOOTING

Problem	Possible Cause			Solution
		Press the 1/TEST button to
	ON/TEST button is not pushed.	turn on the UPS.
		(Refer section 4 to turn on the
		UPS.)
	Battery low shut down and	Waiting for line recovery.
UPS is not turned on.	utility is absent.
		1. Reduce some loads connected
(No alarm, No LED lights)	The rear panel input circuit
	breaker is tripped. (Button is	to the UPS.
		2. Reset the circuit breaker.
	tripped out)	(Push button in)
		Call	for		qualified		service
	UPS fault.	personnel if above actions do
		not solve the problem.
	Batteries inside the UPS are	Recharge the batteries for at
	not fully charged.	least 8 hours.
	UPS is overloaded.	Remove		some		unnecessary
		loads.
		Batteries		weak		faster	when
UPS does not provide		used	often		or	operating at
		higher temperature.
expected back-up time.
	Batteries are weak.	If the battery is near the end of
		its life, call for service personnel.
		Replace the battery even if the
		REPLACE			BATTERY		LED
		does not light.
	Charger fault or other reason.	Call for service.
All LEDs light on.	Internal UPS fault.	1. Turn off UPS.
		2. Call for service.
		1. Recharge the batteries for at
“REPLACE BATTERY”		least 8 hours.
	Weak batteries.	2. If problem remains Call for
LED lights on.		service personnel to, replace
		the batteries.
	Incorrect transmission speed.	Re-test		after using another
		different transmission speed.
PC-UPS communication
		Refer to communication interface
does not work properly.	Incorrect RS-232 connection.	(Section		8)	of	this	manual
		Re-connect the UPS with
		COM1 / COM2 on PC again.
	No incoming utility.	Check input power connection.
UPS operates on battery	The rear panel input circuit	1. Reduce some loads connected
	breaker is tripped. (Button is	to the UPS.
even though the line is in	out).	2. Reset the circuit breaker.
normal operating condition.		(Push button in)
	Very high, low or distorted	Have qualified electrician check
	utility voltage.	the input voltage.
Site wiring fault LED	Wiring error such as reversed	Get wiring checked by electrician.
(fault led flash).	hot/neutral.
	24
	SHEET 25 TO 26