No. Grid
LED
LED
Display
Status description
Action
Pers
.
75
0
0
Self test in progr.
-
-
-
78
Resid. current shutdown
(AFI)
Residual current was detected. The feed-in
was interrupted.
Check cabling in the
system.
B
79
Insulation measurement
PV generator’s insulation is being measured
-
-
80
Insulation meas. not pos-
sible
The insulation measurement cannot be per-
formed because the generator voltage is too
volatile.
-
-
81
Protection shutdown line
volt. L1
Overvoltage has been detected on a con-
ductor. An internal protective mechanism has
disconnected the device to protect it against
damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
82
Protection shutdown line
volt. L2
Overvoltage has been detected on a con-
ductor. An internal protective mechanism has
disconnected the device to protect it against
damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
83
Protection shutdown line
volt. L3
Overvoltage has been detected on a con-
ductor. An internal protective mechanism has
disconnected the device to protect it against
damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
84
Protection shutdown under-
volt. DC link
A voltage deviation has been found in the DC
link. An internal protective mechanism has dis-
connected the device to protect it against
damage. In a TN-C-S grid, the PE must be con-
nected to the device and at the same time the
PEN bridge in the device must be removed.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
85
Protect. shutdown overvolt.
DC link
A voltage deviation has been found in the DC
link. An internal protective mechanism has dis-
connected the device to protect it against
damage. In a TN-C-S grid, the PE must be con-
nected to the device and at the same time the
PEN bridge in the device must be removed.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
86
Protect. shutdown DC link
asymmetry
Overvoltage has been found in the DC link. An
internal protective mechanism has disconnec-
ted the device to protect it against damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
87
Schutzabschaltung Über-
strom L1
A current that has been found on a conductor
is too high. An internal protective mechanism
has disconnected the device to protect it
against damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
88
Protect. shutdown overcur-
rent L2
A current that has been found on a conductor
is too high. An internal protective mechanism
has disconnected the device to protect it
against damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
89
Schutzabschaltung Über-
strom L3
A current that has been found on a conductor
is too high. An internal protective mechanism
has disconnected the device to protect it
against damage.
In case of repeated
occurrence: Notify
your authorised
electrician.
E
93
Buffer 1 self test error
The control board is defective.
Notify authorised
electrician / KACO
Service!
E/K
Powador 30.0-72.0 TL3
Page 80
EN
