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Parameter
"Iso Alternative
Mode"
"Isolation
Warning
Threshold"
"Backup Power"
Parameter
"Backup Nom-
inal Voltage"
"Backup Under-
voltage Protec-
tion Limit U<
[pu]"
"Backup Under-
voltage Protec-
tion Time U<"
"Backup Over-
voltage Protec-
tion Limit U>
[pu]"
"Backup Over-
voltage Protec-
tion Time U>"
"Backup Re-
start Delay"
"Backup Re-
start Attempts"
"Backup Ex-
ternal Fre-
quency Check"
(Italy only)
"Backup Short
Circuit Trip
Time"
110
Value range
Description
Accurate
Isolation monitoring is performed with the
highest accuracy and the measured insula-
tion resistance is displayed on the user in-
terface of the inverter.
Fast
Isolation monitoring is performed with
lower accuracy, which shortens the dura-
tion of the isolation measurement, and the
isolation value is not displayed on the user
interface of the inverter.
100,000 ‑
If this threshold is undershot, status code
10,000,000 Ω
1083 is displayed on the user interface of
the inverter.
Value range
Description
220 ‑ 240 V
Is the nominal phase voltage output in
backup power mode.
0 ‑ 2 %V
The setting value is used to set the limit
value for switching off backup power
mode,
e. g. setting value 0.9 = 90% of the nomin-
al voltage.
0.04 ‑ 20 s
Triggering time for falling below the
backup power undervoltage protection
limit value.
0 ‑ 2 %V
The setting value is used to set the limit
value for switching off backup power
mode,
e. g. setting value 1.1 = 110% of the nom-
inal voltage.
0.04 ‑ 20 s
Triggering time for exceeding the backup
power overvoltage protection limit value.
0 ‑ 600 s
Is the waiting time for resumption of
backup power mode after a shutdown.
1 ‑ 10
Is the max. number of automatic restart
attempts. When the max. number of auto-
matic restart attempts is reached, the ser-
vice message 1177 must be acknowledged
manually.
Off
The function is deactivated
On
For backup power mode (Full Backup) in
Italy, the external frequency check must
be activated. Before ending backup power
mode, the grid frequency is checked.
When the grid frequency is in the allowed
limit range, the loads are connected to the
public grid.
0.001 ‑ 60 s
If a short circuit occurs in backup power
mode, this mode is interrupted within the
set time.
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