APC 990-4053 manual Relay Board/Relay Functions, Relay Message Alarm-trigging Events Number

External Connection

4.4.1 Relay Board/Relay Functions

NOTICE

If alarm mode “Communication to controller lost” is active, ALL relays will indicate failure

	Relay		Message	Alarm-trigging Events
	Number
	1 ## (X002)		Mains outside limits	Mains voltage RMS outside limits
				Mains wave form (fast detector) outside limits
				Mains frequency outside limits
	2 ## (X003)		Bypass outside limits	Bypass voltage RMS outside limits
				Bypass wave form (fast detector) outside limits
				Bypass frequency outside limits
	3 ##	(X004)	Output outside limits	Output voltage RMS value outside limits
				Output wave form (fast detector) outside limits
				Output frequency outside limits
	4	(X005)	System overload	Output load exceeding 100%
				Delta inverter current limiter active
				Main inverter current limiter active
	5	(X006)	Fan fault	Blocked or faulty fan
	6	(X007)	High Equipment	Static switch temperature too high
			Temperature or	Main inverter failure (temperature too high or fuse blown)
			Inverter Fuse Blown	Delta inverter temperature too high
				Magnetic temperature too high
				Isolation transformer (option) temperature too high
				Battery temperature too high
	7	(X008)	MCCB battery off	Battery MCCB/Fuse not closed or released
	8	(X009)	Normal operation	UPS running in normal operation mode(status)
	9 ## (X010)		Battery operation	UPS running in battery operation mode(status)
	10 ## (X011)		Bypass operation	UPS running in bypass operation mode(status)
	11 ## (X012)		Stand-by operation	UPS in stand-by mode
				(Hot stand-by - parallel systems only)
	12	(X013)	Service bypass	Service bypass switch active
			operation
	13 ## (X014)		Boost charge	UPS boost-charging on battery
			operation
	14	(X015)	Battery voltage	DC voltage too high (shut down)
			outside limits	DC voltage below warning level
				DC voltage too low (shut down)
	15	(X016)	Battery condition	ABM has detected weak battery condition
			fault	ABM has detected defect battery
				(ABM = Advanced Battery Monitor)
	16 ## (X017)		Common fault	All alarms as mentioned above
				(except relays 8+9+10+11)
				Internal power supply fault
				System locked in operation mode
				Internal memory fault
				Internal communication fault
					990-4053
Installation Guide APC Silcon 480kW 400V UPS					17