APC BC300 manual Alarms and Events

Alarms and Events

Table 5: Possible Alarms

Charge reg.	Failure in charge regulation. The	Call APC Global Service.
error (reg. =	unit transfers to battery until the
regulator)	“Low DC shutdown” alarm occurs;
	then, it transfers to stand-by and
	does not supply output voltage.
External service	The external service bypass switch	Call APC Global Service.
switch activated	is in the line position. The unit is in
	stand-by and does not supply
	output voltage. However, the loads
	may be receiving power from the
	external manual bypass.
Fan fault	If the fan monitoring option is	Call APC Global Service.
	installed, this alarm sounds if one
	or more of the fans are slowing
	down. The unit’s status does not
	change, but the problem may cause
	other high-temperature alarms
	that could change the unit’s status.
Fatal Error	Components on the main controller	Call APC Global Service.
RAM1 data	board have failed.
error
Fault in int.	There is a fault in the internal	Call APC Global Service.
power supply	power supply unit (PSU). The UPS
	transfers to stand-by and does not
	supply output voltage.
High Battery	The ambient battery temperature	Make sure the room temperature
Temperature	is higher than the set alarm level.	does not exceed 80° F (27° C). If
	The unit’s status does not change,	so, cool down the room. If the
	but battery life could be affected.	temperature was below 80° F (27°
	This alarm is often caused by high	C) at the time of the alarm, find
	room temperature.	the exhaust vents for the UPS
		fans and check to see if the fans
		are operating. Do not try to open
		the unit, and do not insert
		anything into a fan vent. If the
		fans are not operating, call APC
		Global Service.
High DC	The monitored battery voltage is	Call APC Global Service.
Warning	higher than the unit’s shutdown
	setting.
High DC	The monitored battery voltage is	Call APC Global Service.
Shutdown	higher than the unit’s shutdown
	setting. The unit will switch to
	battery power to reduce DC bus
	voltage.

	990-1403
User Guide APC BC300 Series 40kW 208/450/480V UPS	15