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TB MRIK3 12.00 E
5.4.18
Fault time activation
This parameter can be used to fix whether the supervi-
sion of the fault time is active for the first tripping ac-
tion or for all tripping actions (siehe 5.4.14).
5.4.19
Block/Trip - time
The block/trip time serves for detection of a c.b. fail-
ure protection by rear interlocking. It is activated by
setting the blocking input D8/E8 and by setting the
parameter to TR_B. After the set block/trip time has
expired, the relay can be tripped if the excitation of a
protective function has been applied the delay time of
which has expired and the blocking function is still ac-
tive. If the parameter PR_B is set, the individual protec-
tion stages are blocked (refer to Chapter 5.7.1).
5.4.20
Circuit breaker failure protection t
CBFP
The C.B. failure protection is based on supervision of
the phase currents during tripping of the relay. This
protective function becomes only active after tripping
and it is then checked whether all phase currents have
dropped to 0 within time t
CBFP
(Circuit Breaker Failure
Protection). Should not all phase currents have
dropped within this time (t
CBFP
can be adjusted from
0.1 - 2.0 s), the protection device diagnonses C.B.
failure and the respective assigned relay is activated.
The C.B. failure protection function is deactivated
again, when all phase currents drop to 0 within t
CBFP
.
5.4.21
Adjustment of the slave address
Pressing push buttons <+> and <-> the slave address-
can be set in range of 1-32.
5.4.22
Setting of Baud-rate (applies for
Modbus Protocol only)
Different transmission rates (Baud rate) can be set for
data transmission via Modbus protokol.
The rate can be changed by push buttons <+> and
<-> and saved by pressing <ENTER>.
5.4.23
Setting of parity (applies for
Modbus Protocol only)
The following three parity settings are possible
•
"even"
= even
•
"odd"
= odd
•
"no"
= no parity check
The setting can be changed by push buttons <+> and
<-> and saved by pressing <ENTER>.
