General - Fronius GEN24 Operating Instructions Manual

General

Startup and Re- These parameters can be used to set the grid monitoring times before the invert-
connection er is switched on.
For the set time, both the mains voltage and the grid frequency must be within
the permissible range before connection is allowed.
-
-
Parameter
"Grid Monitoring
Time Startup"
Parameter
"Grid Monitoring
Time Reconnec-
tion"
The following errors are defined by the inverter as grid errors for this function-
ality:
Name
"Overvoltage"
"Undervoltage"
"Overfrequency"
"Underfrequency"
"Fast Overvoltage
Disconnect"
10
The permissible range for the mains voltage is defined in the menu area "Grid
and system protection" → "Voltage" → "Startup and reconnection" (see
chapter Voltage).
The permissible range for the grid frequency is defined in the menu area
"Grid and system protection " → " Frequency " → " Startup and reconnection"
(see chapter Frequency).
Range of values
1 - 900 [s]
Range of values
1 - 900 [s]
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%).
Description
Grid monitoring time before the invert-
er is switched on during a normal start-
up process in seconds (e.g. at sunrise).
Description
Grid monitoring time before the invert-
er is switched back on after a grid fault
(see table "Grid faults") in seconds
(e.g. if a fault occurs in the AC grid dur-
ing the day which causes the inverter to
shut down).
"StateCode"
name
"AC voltage
too high"
"AC voltage
too low"
"AC fre-
quency too
high"
"AC fre-
quency too
low"
"Grid voltage
too high (fast
overvoltage
cut-out)"
"StateCode"
number
1114
1119
1035
1037
1115, 1116