Nl-Monitor - Fronius SnapINverter Serviceanleitung

Alt Freq IL Max
Alternative upper inner grid frequency limit value in Hz
Alt Freq IL Max TT
Trip time
Alt Freq IL Min
Lower alternative inner grid frequency limit value in Hz
Alt Freq IL Min TT
Trip time
Freq Outer Limit Max
Upper outer grid frequency limit value in Hz
Freq OL Max TripTime
Trip time
Freq Outer Limit Min
Lower outer grid frequency limit value in Hz
Freq OL Min TripTime
Trip time
Freq Reconnect Max
Upper grid frequency limit value for reconnection to the public grid following disconnec-
tion due to unauthorised parameter deviation
[Hz]
Freq Reconnect Min
Lower grid frequency limit value for reconnection to the public grid following disconnec-
tion due to unauthorised parameter deviation
[Hz]
A)
B)

NL-MONitor

For setting the NL-MON (neutral conductor phase monitoring) switch-off values
Selection options
NL-MONitor On/Off
NL Uouter Limit Min
NL U OL Min TripTime
NL Uinner Limit Min
NL U IL Min TripTime
NL Uinner Limit Max
NL U IL Max TripTime
A)
for exceeding the alternative upper inner grid frequency limit value in cyl
A)
for falling below the alternative lower inner grid frequency limit value in cyl
A)
for exceeding the upper outer grid frequency limit value in cyl
A)
for falling below the lower outer grid frequency limit value in cyl
Different trip times can be assigned to the inner limit value IL and outer limit value
OL.
For example: short trip time for a deviation from the outer limit value
long trip time for a deviation from the inner limit value
cyl = grid periods (cycles); 1 cyl corresponds to 20 ms at 50 Hz or 16.66 ms at 60
Hz
NL-MONitor On/Off / NL Uouter Limit Min / NL U OL Min Trip-
Time / NL Uinner Limit Min / NL U IL Min TripTime / NL Uinner
Limit Max / NL U IL Max TripTime / NL Uouter Limit Max / NL U
OL Max TripTime
Selection options: ON / OFF / Stinger
Specification of the minimum external switch-off value
Specification of the operating time of the minimum external
switch-off value
Specification of the minimum internal switch-off value
Specification of the operating time of the minimum internal
switch-off value
Specification of the maximum internal switch-off value
Specification of the operating time of the maximum internal
switch-off value
B)
B)
B)
B)
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