Toshiba G2020 Series Installation And Operation Manual page 72

Code
LCD Screen Status
indication
Message
(Note 3)
DC CIRCUIT
UF112
ABNORMAL
DC CIRCUIT
UF113
ABNORMAL
DC GROUND
UF119
FAULT
CONTROL POWER
UF128 SUPPLY
ABNORMAL
DC VOLTAGE
UF151
ABNORMAL
DC VOLTAGE
UF152
ABNORMAL
UF154 CB2 ABNORMAL
CHG.STOPPED
UF156 (BATTERY
OVERTEMP.)
BATTERY
UF157 OVERTEMPERA
TURE
BATTERY LIQUID
UF158
LOW
UF159 GROUND FAULT
CHG.STOPPED
UF161 (DC VOLT.
ABNORMAL)
BATTERY
UF162
ABNORMAL
BATTERY
UF163 VOLTAGE
ABNORMAL
VDB SENSOR
UF170
ABNORMAL
CHG.STOPPED
UF172
(DEVICE STATUS)
UF179 GROUND FAULT
INVERTER
UF201
OVERVOLTAGE
INVERTER
UF202
UNDERVOLTAGE
INVERTER
UF203
OVERCURRENT
OUTPUT CIRCUIT
UF204
ABNORMAL
UPS CONTROL
UF206
CIRCUIT ERROR
ZERO PHASE
UF207
OVERCURRENT
UPS CONTROL
UF208
CIRCUIT ERROR
UF209 52C ABNORMAL
UF210 52C ABNORMAL
UF211 52C ABNORMAL
OVERTEMPERATU
UF213
RE
COOLING FAN
UF214
ABNORMAL
64
Meaning
Sudden change of the DC voltage
level.
Unit current unbalance.
Detection of DC ground fault.
Power supply voltage to SiC driver
PCB is below the specified level.
24 hours after input power
restoration, batteries do not reach
float voltage level.
Unable to equalize the voltage of
various batteries after 24 hours.
During UVR, status signal from CB2
is ON.
UF157 failure persisted for over 2
hours.
Detection of over temperature at the
batteries.
Low level of battery electrolyte
solution.
Detection of DC ground fault (L).
UF151 failure is running for over 24
hours.
Failure detection based on battery
self-check.
Battery voltage is abnormality.
Detection of a large variation of the
difference between control-only and
protection-only battery voltage.
Energy storage device abnormal
Detection of DC ground fault (M).
Detection of output overvoltage.
Output voltage dropped.
Detection of inverter overcurrent.
Detection of a large variation of the
reference error signal (current
reference and actual current).
Discrepancy between output voltage
and external voltage (bypass,
common ac bus)
Inverter zero-sequence overcurrent.
Cross current is abnormality.
Error to close the contactor 52C.
Error to open the contactor 52C.
No answer from contactor 52C
during inverter operation.
Heat sinks temperature exceeds
thermal settings.
Thermal relay activated protection.
G2020 Series UPS Installation and Operation Manual – 94861-004
Recommended
Buzzer
Action
CALL SERVICE Continuoussou
ENGINEER nd
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
Intermittent
CHECK BATTERY
sound
Intermittent
CHECK BATTERY
sound
Intermittent
CHECK BATTERY
sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Intermittent
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
CALL SERVICE Continuous
ENGINEER sound
External relay Failure
contact lamp
(Note 1) (Note 2)
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Minor Blinking
Minor Blinking
Minor Blinking
Minor
Battery Blinking
abnormal
Minor
Battery Blinking
abnormal
Minor
Battery Blinking
abnormal
Minor Blinking
Minor Blinking
Minor Blinking
Minor Blinking
Minor Blinking
Minor Blinking
Minor Blinking
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On
Major Cont. On