Frequency - Fronius GEN24 Operating Instructions Manual

Parameter
"Reconnection Minimum

Frequency"

"Reconnection Maxim-
um Frequency"
"Startup Minimum Fre-
quency"
"Startup Maximum Fre-
quency"
The following errors are defined by the inverter as grid errors for this function-
ality:
Name
"Overvoltage"
"Undervoltage"
"Overfrequency"
"Underfrequency"
"Fast Overvoltage
Disconnect"
"Long Time Aver-
age Overvoltage
Limit"
"Unintentional Is-
landing Detec-
tion."
"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
Description
Lower value of the grid frequency for reconnection
in [Hz]
Upper value of the grid frequency for reconnection
in [Hz]
Lower value of the grid frequency for the normal
start process in [Hz]
Upper value of the grid frequency for the normal
start process in [Hz]
Description
Mains voltage exceeds an
overvoltage limit ("Inner,
Middle, or Outer Limit
Overvoltage").
Mains voltage falls below
an undervoltage limit ("In-
ner, Middle or Outer Limit
Undervoltage").
Grid frequency exceeds an
overfrequency limit ("In-
ner, Outer or Alternative
Limit Overfrequency").
Grid frequency falls below
an underfrequency limit
("Inner, Outer or Alternat-
ive Limit Underfre-
quency").
Triggering of the fast surge
protection (> 135%).
Mains voltage exceeds the
long-term overvoltage lim-
it ("Long Time Average
Limit").
Unintentional islanding
was detected.
"StateCode" "StateCode"
name number
"AC voltage 1114
too high"
"AC voltage 1119
too low"
"AC fre- 1035
quency too
high"
"AC fre- 1037
quency too
low"
"Grid voltage 1115, 1116
too high (fast
overvoltage
cut-out)"
"Long-term 1117
mains
voltage limit
exceeded"
"Islanding 1004
detected"