Parameter Description
"Reconnection Minimum
Frequency"
Lower value of the grid frequency for reconnection
in [Hz]
"Reconnection Maxim-
um Frequency"
Upper value of the grid frequency for reconnection
in [Hz]
"Startup Minimum Fre-
quency"
Lower value of the grid frequency for the normal
start process in [Hz]
"Startup Maximum Fre-
quency"
Upper value of the grid frequency for the normal
start process in [Hz]
The following errors are defined by the inverter as grid errors for this function-
ality:
Name Description "StateCode"
name
"StateCode"
number
"Overvoltage" Mains voltage exceeds an
overvoltage limit ("Inner,
Middle, or Outer Limit
Overvoltage").
"AC voltage
too high"
1114
"Undervoltage" Mains voltage falls below
an undervoltage limit ("In-
ner, Middle or Outer Limit
Undervoltage").
"AC voltage
too low"
1119
"Overfrequency" Grid frequency exceeds an
overfrequency limit ("In-
ner, Outer or Alternative
Limit Overfrequency").
"AC fre-
quency too
high"
1035
"Underfrequency" Grid frequency falls below
an underfrequency limit
("Inner, Outer or Alternat-
ive Limit Underfre-
quency").
"AC fre-
quency too
low"
1037
"Fast Overvoltage
Disconnect"
Triggering of the fast surge
protection (> 135%).
"Grid voltage
too high (fast
overvoltage
cut-out)"
1115, 1116
"Long Time Aver-
age Overvoltage
Limit"
Mains voltage exceeds the
long-term overvoltage lim-
it ("Long Time Average
Limit").
"Long-term
mains
voltage limit
exceeded"
1117
"Unintentional Is-
landing Detec-
tion."
Unintentional islanding
was detected.
"Islanding
detected"
1004
"Rate of Change of Frequency (RoCoF) Protection"
This function allows the RoCoF (Rate of Change of Frequency) ‑detection and
‑switch-off to be activated and adjusted. In the event of frequency changes that
are above a set value and last longer than the set time, the inverter is shut down.
26
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