f-Protection Module – Frequency [81O/U, 78, 81R]
Setting Group Parameters of the Frequency Protection Module
Parameter
Description
Setting range
Default
Menu path
Function
Permanent activation or
deactivation of
module/stage.
inactive,
active
f[1]: active
f[2]: active
f[3]: inactive
f[4]: inactive
f[5]: inactive
f[6]: inactive
[Protection Para
/<n>
/f-Prot
/f[1]]
ExBlo Fc
Activate (allow) or
inactivate (disallow)
blocking of the
module/stage. This
parameter is only
effective if a signal is
assigned to the
corresponding global
protection parameter. If
the signal becomes true,
those modules/stages
are blocked that are
parameterized "ExBlo
Fc=active".
inactive,
active
inactive
[Protection Para
/<n>
/f-Prot
/f[1]]
Blo TripCmd
Permanent blocking of
the Trip Command of the
module/stage.
inactive,
active
inactive
[Protection Para
/<n>
/f-Prot
/f[1]]
ExBlo TripCmd Fc
Activate (allow) or
inactivate (disallow)
blocking of the
module/stage. This
parameter is only
effective if a signal is
assigned to the
corresponding global
protection parameter. If
the signal becomes true,
those modules/stages
are blocked that are
parameterized "ExBlo
TripCmd Fc=active".
inactive,
active
inactive
[Protection Para
/<n>
/f-Prot
/f[1]]
f>
Pick-up value for
overfrequency.
Only available if: Device
planning: f.Mode = f> Or
f> and df/dt Or f> and DF/
DT
40.00 - 69.95Hz
51.00Hz
[Protection Para
/<n>
/f-Prot
/f[1]]
EN MRU4 10/09
Page 261
