Toshiba G9000 operation manual 52S Abnormal

Note 3					Note 1	Note 2
Code	Status message	Meaning	Guidance	Buzzer	External	Failure
indication					relay contact	lamp
UF401	52S ABNORMAL	Error to close the contactor 52S.	CALL SERVICE	Continuous	Major	Lit on
			ENGINEER	sound
UF402	52S ABNORMAL	Error to open the contactor 52S.	CALL SERVICE	Continuous	Major	Lit on
			ENGINEER	sound
UF420	52L OPERATION	Load circuit breaker 52L opened during	CHECK 52L	Continuous	Major	Lit on
	ERROR	inverter operation.		sound
UF451	52S ABNORMAL	Contactor 52S failed during load transfer	CALL SERVICE	Intermittent	Minor	Flicker
		from inverter to bypass.	ENGINEER	sound
UF452	CB3 ABNORMAL	Contactor CB3 is not working properly.	CALL SERVICE	Intermittent	Minor	Flicker
			ENGINEER	sound
(Note 1) 1)	"Major" is defined as major failure. Inverter transferred to the static bypass line;

2)"Minor" is defined as a minor failure. UPS continues to operate normally, but cause of alarm must be identified;

(Note 2) Indicates one of two possible LED illumination patterns - continuously on (lit) or intermittent (flicker).

(Note 3) Code indication means:
UA+++------------------------		Alarm
UF+++------------------------		Failure
U%0++ -----------------------		Rectifier circuit failure
U%1++ -----------------------		DC circuit failure
U%2++ -----------------------		Inverter circuit failure
U%3++ -----------------------		Control circuit failure
U%4++ -----------------------		Bypass system failure
U%8++ -----------------------		Alarm
U%+00 - U%+49 ---------		Major failure
U%+50 - U%+99 ---------		Minor failure
*)	“+” denotes any numeral from 0 to 9
*)	“%” denotes either “A” or “F”

82 G9000 Installation and Operation Manual