1MRS751802-MUM
REX 521
73
Protection Relay
Technical Reference Manual, Standard Configurations
5.
Parametrization of the digital inputs
Digital inputs can be used for performing different functions like resetting the
desired function block by programming the selectors and switchgroups accordingly.
Fig. 5.-1 Overview of the selector options
5.1.
Selectors
5.1.1.
Reset
Selectors Reset 1 and Reset 2 can be programmed to connect any of the inputs
DI1...DI9 to reset the latched trip signal and the recorded data of the functions (for
example O/C, E/F, Iub>, 3Ith>, PQ 3Inf
1
).
5.1.2.
Group
Group is used for switching between the setting groups 1 and 2 of the protection
functions.
5.1.3.
Blocking
Selectors BS1 and BS2 can be programmed to block the operation of the functions
(for example 3I>, 3I>>, 3I>>> etc.
1
).
5.1.4.
Disturbance recorder trigger
Any of the inputs DI1...DI9 can be used to start the disturbance recorder to record
measurements.
PREDELAY
INVERSION
DI1
.
.
.
DI9
Reset 1
Reset 2
Group
Blocking 1
Blocking 2
DREC trig
PQ 3Inf trig
BACTRL
Master trip
External trip
Lockout reset
Remote
Close enable
Open
Close
CB pos. open
CB pos. close
DC pos. open
DC pos. close
ES pos. open
ES pos. close
Logic input 1
Logic input 2
Logic input 3
Input
Signals
Output
relays
HSPO 1
PO1
PO2
.
.
.
etc.
Input
SWGRP
O/C
E/F
Iub>
3Ith>
PQ 3Inf
O-->I
Reset 1
Reset 2
etc.
Digital
inputs
Selectors
Di
g
italOut
p
uts1
1. Standard configuration specific.
Содержание REX 521
Страница 1: ...Protection Relay REX 521 Technical Reference Manual Standard Configurations ...
Страница 2: ......
Страница 12: ...12 ...
Страница 22: ...22 ...
Страница 62: ...62 ...
Страница 72: ...72 ...
Страница 128: ...128 ...
Страница 132: ...132 ...
Страница 172: ...172 ...
Страница 198: ...198 ...
Страница 249: ......