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MITSUBISHI
ELECTRIC
9800A SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-3
MITSUBISHI ELECTRIC 9800A SERIES UPS
UF166 IGBT FAULT (A) IGBT module (A) overcurrent
CALL SERVICE
ENGINEER
[2] Major Lit on
UF167 IGBT FAULT (B) IGBT module (B) overcurrent
CALL SERVICE
ENGINEER
[2] Major Lit on
UF168 IGBT FAULT (C) IGBT module (C) overcurrent
CALL SERVICE
ENGINEER
[2] Major Lit on
UF201
INVERTER
OVERVOLTAGE
Output overvoltage during inverter
power supply (+ 15%)
CALL SERVICE
ENGINEER
[2] Major Lit on
UF202
INVERTER
UNDERVOLTAGE
Output low voltage during inverter
supply (-15%)
CALL SERVICE
ENGINEER
[2] Major Lit on
UF203
INVERTER
OVERCURRENT
Inverter output overcurrent
CALL SERVICE
ENGINEER
[2] Major Lit on
UP204
OUTPUT CIRCUIT
ABNORMAL
Cross current fell out of 30%
CALL SERVICE
ENGINEER
[2] Major Lit on
UF209 52C ABNORMAL 52C not turned ON
CALL SERVICE
ENGINEER
[2] Major Lit on
UF210 52C ABNORMAL 52C not turned OFF
CALL SERVICE
ENGINEER
[2] Major Lit on
UF213
INV. OR CONV.
OVERTEMPERATURE
Overheating of main circuit parts
CALL SERVICE
ENGINEER
[2] Major Lit on
UF214
COOLING FAN
ABNORMAL
Abnormality of cooling fan inside
panel
CALL SERVICE
ENGINEER
[2] Major Lit on
UF255 52C ABNORMAL
52C turned OFF during inverter
power supply
CALL SERVICE
ENGINEER
[1] Minor Flicker
UF256
OUTPUT VOLTAGE
ABNORMAL
Inverter output voltage fell out of
+/- 5%
CALL SERVICE
ENGINEER
[1] Minor Flicker
UF257 52C ABNORMAL
52C not turned OFF when manual
transfer
CALL SERVICE
ENGINEER
[1] Minor Flicker
UF258 LOAD ABNORMAL
More than 4 overcurrents for 10
minutes
CHECK LOAD [1] Minor Flicker
UF259
Output voltage bus
abnormal
Inverter output voltage bus
abnormality
CALL SERVICE
ENGINEER
[1] Minor Flicker
UF260 LOAD SHORT
After UA810 occurred, Bypass
Abnormal occurred within 1
second. (#1)
CHECK LOAD [1] Minor Flicker
UF301
UPS CONTROL CIRCUIT
ERROR
Control microcomputer
abnormality
CALL SERVICE
ENGINEER
[2] Major Lit on
UF302
UPS CONTROL CIRCUIT
ERROR
Control microcomputer
abnormality
CALL SERVICE
ENGINEER
[2] Major Lit on
UF303
UPS CONTROL CIRCUIT
ERROR
Control microcomputer
abnormality
CALL SERVICE
ENGINEER
[2] Major Lit on
UF304
UPS CONTROL CIRCUIT
ERROR
Parallel control circuit abnormality
CALL SERVICE
ENGINEER
[2] Major Lit on