Setting Notes; Settings; Information List - Siemens SIPROTEC Manual

Functions
2.12 Direct Local Trip
2.12.2

Setting Notes

General
A precondition for using the external local trip is that during the configuration of the device functions (Section
2.1.1) address 122 DTT Direct Trip was set to Enabled. At address 2201 FCT Direct Trip it can also
be switched ON or OFF.
For the external local trip, a trip time delay can be set in address 2202 Trip Time DELAY. This delay time
can be used as security time margin.
Once a trip command has been issued, it is maintained for at least as long as the set minimum trip command
duration TMin TRIP CMD which was set for the device in general in address 240 (Section 2.1.2). Reliable
operation of the circuit breaker is therefore ensured, even if the initiating signal pulse is very short.
2.12.3

Settings

Addr. Parameter
2201 FCT Direct Trip
2202 Trip Time DELAY
2.12.4

Information List

No. Information
4403 >BLOCK DTT
4412 >DTT Trip L1
4413 >DTT Trip L2
4414 >DTT Trip L3
4417 >DTT Trip L123
4421 DTT OFF
4422 DTT BLOCK
4432 DTT TRIP 1p. L1
4433 DTT TRIP 1p. L2
4434 DTT TRIP 1p. L3
4435 DTT TRIP L123
286
Setting Options
ON
OFF
0.00 .. 30.00 sec; ∞
Type of In-
formation
SP >BLOCK Direct Transfer Trip function
SP >Direct Transfer Trip INPUT Phase L1
SP >Direct Transfer Trip INPUT Phase L2
SP >Direct Transfer Trip INPUT Phase L3
SP >Direct Transfer Trip INPUT 3ph L123
OUT Direct Transfer Trip is switched OFF
OUT Direct Transfer Trip is BLOCKED
OUT DTT TRIP command - Only L1
OUT DTT TRIP command - Only L2
OUT DTT TRIP command - Only L3
OUT DTT TRIP command L123
Default Setting
OFF Direct Transfer Trip (DTT)
0.01 sec Trip Time Delay
Comments
C53000-G1176-C169-5, Release date 02.2011
Comments
SIPROTEC, 7SD5, Manual