Omron BU3002SW, BU1002SW Start and stop procedures and basic operation, Start procedure

3. Operation

3-2 Start and stop procedures and basic operation

●When the power switch is OFF and the AC input plug is connected to a commercial power supply:

•The details of the most recent error are displayed. (item 4 on page 40)

•The status indicator displays " ".

•Power output is stopped.

•The battery automatically starts recharging.

●Start procedure

Operation Turn on the power switch of the UPS.

•Output begins in Bypass Mode about 10 seconds after the switch is activated. (Status indicator “ ”)

However, “ ” is displayed at cold start, and output begins in Battery Mode.

•The status indicator displays “ ”, and the self-diagnostic test is performed in Battery Mode for about 10 seconds. (If the battery voltage is low, the self-diagnostic test is not performed. It is automatically executed after the battery is charged.)

*1 When the self-diagnostic test finishes successfully, switching to AC output from commercial power is performed and normal operation starts.

*2 Self-diagnostic test is not performed at cold start.

•If the self-diagnostic test is finished normally, It is replaced by the AC output from a commercial power supply and become a normal driving state through inverter mode.

•If the self-diagnostic test is not executed, the UPS immediately starts outputting AC from commercial power.

Status indicator
Beep	None
Power supply output receptacles	Outputs power (connected devices are powered)

See also Cold start ON/OFF setting ➛ Page 49

• During operation, the battery is charged automatically.

AC input

ON

OFF

7 seg.

Power supply SW	ON
	OFF
Power supply	ON
output lamp	OFF
Bypass operation	ON
lamp	OFF

Commercial Power

Operating mode	Battery
Operating mode	Bypass
	Inverter
	Commercial Power
Output	Battery

D-1

		Bypass	Self-diagnostic	Commercial
	Startup
		mode	test	operation
	preparation
1 sec.	about	about	about
	10 sec.	2 to 3 sec.	10 sec.

<Note>

D-1 : The most recently displayed error code (refer to item 4 on page 34) (If no errors have occurred, " " is displayed.)

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