58/78 SUREWAVE SFC USER MANUAL
10.2.2.2 List of faults
ID
Event
Description
Recommended Action
2
EPO Engaged
TRIP: Emergency power off
has been activated, 'Hard
stop' triggered.
Assess the reason for EPO acti-
vation. Release the EPO & reset
SFC.
3
Inhibit Engaged
INHIBIT: Inhibit is engaged,
system is blocked from start-
ing. Used for servicing the sys-
tem.
Ensure system is safe to oper-
ate before releasing the Inhibit
& starting the system.
4
Customer Trip A
TRIP: Input A of two dedi-
cated trip/warning inputs for
the customer is configured as
a Trip. Typically used for
transformer monitoring. This
event has occurred, the SFC
has tripped, and "Hard stop"
triggered.
In the case of a transformer
fault: Let transformer cool
down before attempting to op-
erate again.
Check inter-cabinet wiring.
Check TX PTC connections are
intact. Check transformer cool-
ing setup.
5
Customer Trip B
TRIP: Input B of two dedi-
cated trip/warning inputs for
the customer is configured as
a Trip. Typically used for
transformer monitoring. This
event has occurred, the SFC
has tripped, and "Hard stop"
triggered.
In the case of a transformer
fault: Let transformer cool
down before attempting to op-
erate again.
Check inter-cabinet wiring.
Check TX PTC connections are
intact. Check transformer cool-
ing setup.
11
PSUs Not Good
WARNING OR TRIP: One or
more of the auxiliary PSU out-
put voltage < 90%, or output
in overload. If one fails, fan
speed will be reduced. If both
fail, SFC will trip.
If SFC still running with re-
duced cooling, organize PSU
Replacement.
System can continue running
for a time although hotter.
If both have failed replace one
or more of the PSUs as soon as
possible.
35
Input Grid Failure
TRIP: Input grid PLL unlocked
or changed to negative se-
quence, while rectifiers al-
ready running.
Address grid issues, reset trip
and restart.
49
Input Group Error
TRIP: The rectifier group has
reported an error.
Contact Service. See PEBB or
PEBB Group Level events and
resolve.
50
Output Group Er-
ror
TRIP: The inverter group has
reported an error
Contact Service. See PEBB or
PEBB Group Level events and
resolve.
53
Thermal Overload
Trip
TRIP: Internal temperature has
been measured as higher than
trip limit.
Check SFC fans and filters, and
repair / clean as necessary.
Check ambient temperature.
Check for cooling air recircula-
tion.
62
Mode Change Error TRIP: Mode Change request
between VSI & Vgen while run-
ning has caused an error
Reset SFC. Change mode while
stopped, then restart.
