No. Grid
LED
LED
Display on web interface
Status description
Action
Pers
.
35
Protect. shutdown SW
Due to a measured value which is outside the
permissible range, a shutdown has been car-
ried out to protect the device Possible causes
for shutdown: - Mains overvoltage (each phase
is monitored) - DC link overvoltage - DC link
Does the error only
occur sporadically?
How is the device
connected to the
grid (strongly induc-
tive network (di-
rectly on the trans-
former))? -> If the
plant has its own
transformer, then
the short-circuit
voltage of the trans-
former provides in-
formation about the
inductance of the
grid established for
the system. (4%
short-circuit voltage
is a very good
value.)
K
36
Protection shutdown HW
Protective shutdown if critical limit values are
exceeded. Group fault for all trip zone shut-
downs. The specific shutdown reason usually
comes first, followed by this group fault.
Causes: Saturation monitoring of the AC-IGBTs
or AC overcurrent
No fault! Grid-re-
lated shutdown, the
grid connects again
automatically.
-
38
Generator voltage too high /
fault: Battery overvoltage
The voltage of the DC generator is too high.
The PV generator is configured incorrectly.
Check PV voltage
using suitable mea-
suring equipment.
Are strings con-
nected in series in-
stead of in parallel?
E
41
Grid failure undervoltage L1 The voltage of a grid phase is too low; the grid
cannot be fed into. The phase experiencing
failure is displayed.
Check grid voltage
at the device termi-
nal Lx. Check setting
values in the param-
eters menu. Has ev-
erything been set
up correctly and is
the voltage within
the set limit values?
Check connection/
cabling!
E
42
Grid failure overvoltage L1
See description in the event of a fault 41
See action in the
event of a fault 41
E
43
Grid failure undervoltage L2 See description in the event of a fault 41
See action in the
event of a fault 41
E
44
Grid failure overvoltage L2
The voltage of a grid phase is too low; the grid
cannot be fed into. The phase experiencing
failure is displayed.
Notify your autho-
rized electrician!
E
45
Grid failure undervoltage L3 See description in the event of a fault 41
See action in the
event of a fault 41
E
46
Grid failure overvoltage L3
See description in the event of a fault 41
See action in the
event of a fault 41
E
Manual
Maintenance and troubleshooting | 11
KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
Page 105
EN-US
