Trip (Command) Contacts - Siemens 7UT51 Instruction Manual

Binary-Signal Inputs, Signal Contacts, Trip Contacts, and LED Indicators
7UT51 v3
LED Code
LED 5 141
143
144
145
151
152
LED 6 95 SetChg in Prog
LED 7 5821 RGF Gen Trip
LED 8 5921 Tank Gen. Trip
LED 9 1571 49 O/L 1 Trip
LED 10 1621 49 O/L 2 Trip
LED 11 391 >Buchh. Warn
LED 12 392 >Buchh. Trip
LED 13 11 >UsrDefEvent3
LED 14 5711
5712
1576
1626
2457
5828
5829
5830
5831
5834
5928
13.5

Trip (Command) Contacts

The relay sends trip signals to circuit breakers by
closing trip (command) contact relays, each of which
can be activated by up to twenty trip functions,
including two external trip functions. The 7UT512 relay
6401 TRIP CONTACT 1
6402 TRIP CONTACT 2
6403 TRIP CONTACT 3 (7UT513 only)
6404 TRIP CONTACT 4 (7UT513 only)
6405 TRIP CONTACT 5 (7UT513 only)
Each Address holds up to twenty functions, any one of which will activate the corresponding trip relay. For a
function to trip the relay, it must be both assigned to a trip contact AND the protection function must be enabled
and active. Each has the same seven default functions: 1571, 1621, 2451, 5691, 5692, 5821, and 5921.
LCD Message
not allocated
>UsrDefEvent1
>UsrDefEvent2
>UsrDefEvent3
>UsrDefEvent4
PRIM-2330C
Function(s) Description
24V Failure Relay failure
15V Failure
5V Failure
Offset Fail
I/O 1 Failure
i/O 2 Failure
Setting change in progress
Restricted ground
Transformer tank prot.: General TRIP
-
49 Trip by thermal O/L protection 1
-
49 Trip by thermal O/L protection 2
Buchholz warning
Buchholz trip
User Defined Event #1
Err 2 CT star Diff prot err:2 starpt CT for Wnd 1
Err no CTStar Diff prot err:No strpt CT connctd
-
49O/L1 ErrS3 49 Therm O/L prot.1 err:No side3
-
49O/L2ErrS3 49 Therm O/L prot.2 err:No side3
BU Error W3 Backup O/C err: Wnd 3 No exist
RGF Err S3 Restricted gnd fualt err: No Side 3
RGFErr2CTsta Restricted gnd flt err: 2 starpt CT
RGFErr0CTsta Restricted gnd flt err: No starptCT
RGF ErrVirObj RGF Error: Use only virtual obj.
RGF no exist Restricted gnd fault err: Non
Tank Err S3 Transfrmr tank prot. err: Nonexist
Code
1 No function assigned
11 >User defined event 1
12 >User defined event 2
13 >User defined event 3
14 >User defined event 4
-
fault: General Trip
-
exist
has two trip contacts and the 7UT513 relay has five
trip contacts. The differential current trip commands
are preassigned to all of the trip contacts.
Event that will activate the trip relay
13
129