APC BC300 manual Alarms and Events

		Alarms and Events
	Table 5: Possible Alarms
High output	The output voltage is higher than	If the alarm is still active, put the
voltage (This	the alarm setting. The unit stays in	UPS into bypass by displaying
alarm is usually	the normal operation mode. If the	the user parameters and
only listed in the	alarm is not cleared, the unit will	changing “Bypass Operation” to
events log)	transfer to static bypass operation	“ON.” (See the “Parameter
	if bypass is within tolerance. If	Settings” section in this User
	bypass is not within tolerance, the	Guide). Then, call APC Global
	unit will transfer to stand-by and	Service.
	will not supply output voltage.
High temp.	The temperature in the main choke	Find the exhaust vents for the
choke	is too high. If the problem is not	UPS fans and check to see if the
	corrected soon, the unit will	fans are operating. Do not try to
	transfer to battery operation.	open the unit, and do not insert
		anything into a fan vent. If the
		fans are not operating, call APC
		Global Service.
High temp.	The temperature in the main	Find the exhaust vents for the
transformer	transformer is too high. If the	UPS fans and check to see if the
	problem is not corrected soon, the	fans are operating. Do not try to
	unit will transfer to stand-by and	open the unit, and do not insert
	will not supply output voltage.	anything into a fan vent. If the
		fans are not operating, call APC
		Global Service.
Inverter fuse	One or more of the fuses at the	Call APC Global Service.
blown	output of the inverter are blown
	(F004, F005, F006). If bypass is
	within tolerance, the unit transfers
	to static bypass operation. If not,
	the unit transfers to stand-by and
	does not supply output voltage.
Inverter voltage	The output voltage is too high or too	If the UPS is in stand-by, restart
error	low. If the alarm was caused by	the UPS by pressing the green
	high output voltage, the unit	button inside the door. If the UPS
	transfers to static bypass operation	will not restart, a user may have
	if bypass is within tolerance. If	started an emergency power off
	bypass is not within tolerance, the	(EPO) shutdown. Find out if the
	unit transfers to stand-by and does	EPO shut down the UPS; if it did,
	not supply output voltage. If the	find out why and make sure the
	alarm was caused by low output	emergency situation has passed.
	voltage, the unit transfers to static	Then, reset the EPO and restart
	bypass operation if bypass is within	the unit by pressing the green
	tolerance. If bypass is not within	button inside the door. If the unit
	tolerance, the unit transfers to	will still not restart, call APC
	battery for five seconds and then	Global Service.
	transfers to stand-by and stops
	supplying output voltage.

990-1403

16 User Guide APC BC300 Series 40kW 208/450/480V UPS