ABB PQFA Instruction Manual page 94

Error Error message
code
96 Soft DC
overvoltage
97 Soft DC
undervoltage
98 Soft AC
undervoltage
99 Soft synchro
fault
112 Preload
timeout
113 DSP stopped
system
114 Main breaker
trip
115 DSP bus fault
116 EEPROM
corrupted
Possible causes
DC voltage on DC bus is
out of normal range
(overvoltage)
DC voltage on DC bus is
out of range
(undervoltage)
AC voltage is out of
range (undervoltage)
The system
desynchronises from the
network
The preloading of the
DC bus takes
abnormally long time.
DSP decision to stop the
system.
? ?
Power breaker not
closed after
energised
? ?
Undervoltage on AC
grid
The DSP has stopped
communicating
Internal memory
corrupted
Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
Actions
Inspect ? 15V power
? ?
supply (U100)
? ?
Inspect
current
(B101/102/103)
? ?
Inspect visually DC
voltage divider and
wiring
? ?
Inspect DC voltage
measurement circuit
Inspect ? 15V power
? ?
supply (U100)
? ?
Inspect
current sensor
? ?
Check network
voltages on three
phases voltage
? ?
Check AC
measurement circuit
? ?
Check phase rotation
order of filter supply
? ?
Check network
frequency and
variation to see one
within acceptable
limits
? ?
Check voltage level
of the supply system
Check preloading circuit
an system.
Contact
your ABB
provider.
? ?
Check
being contact
breaker
associated circuit
? ?
Check that grid AC
voltage
enough
tolerance)
Contact
your ABB
provider.
Contact
your ABB
provider.
internal
sensor
internal
immediately
service
auxiliary
of main
and
is high
(within
immediately
service
immediately
service
94