Toshiba T90S3S08KS6XSN Manual page 96

Uninterruptible power systems g9000 series 80/100/160/225 kva
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Note 3
Code
Status message
indication
UF401
52S ABNORMAL
UF402
52S ABNORMAL
52L OPERATION
UF420
ERROR
UF451
52S ABNORMAL
UF452
CB3 ABNORMAL
(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"
G9000 Installation and Operation Manual
Meaning
Error to close the contactor 52S.
Error to open the contactor 52S.
Load circuit breaker 52L opened during
inverter operation.
Contactor 52S failed during load transfer
from inverter to bypass.
Contactor CB3 is not working properly.
Guidance
Buzzer
CALL SERVICE
Continuous
ENGINEER
sound
CALL SERVICE
Continuous
ENGINEER
sound
Continuous
CHECK 52L
sound
CALL SERVICE
Intermittent
ENGINEER
sound
CALL SERVICE
Intermittent
ENGINEER
sound
Note 1
Note 2
External
Failure
relay
lamp
contact
Major
Lit on
Major
Lit on
Major
Lit on
Minor
Flicker
Minor
Flicker
59

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