ABB REC 561 User Manual

Breaker-failure protection
ABB Network Partner AB
1MRK 580 171-XEN
Page 5 - 89
Version 1.0-00
2.5 Back-up trip The back-up trip delay timer t2 can be set between 50 and 400 ms.
A trip pulse length of 150 ms is generated.
Fig. 7 Breaker-failure protection
3 Setting
3.1 Man-machine
interface (MMI)
The configuration of alternatives or settings to the functions is made on
the built-in MMI:
Settings
Functions
Group n
Breaker Failure
The breaker-failure protection can be controlled from the man-machine
interface (MMI) by an “Operation” parameter, to be set between alterna-
tives Off/On.
When “Operation” is set to Off, the function becomes inoperative.
The configuration of input and output signals to the function is made on
the built-in MMI:
Configuration
Function Inputs
Breaker Failure
(X80171-7)
1
V
TTRIP
STARTL1
BUTL1
RTL1
L1
RETRIPL1
1
V
TTRIP
STARTL2
BUTL2
RTL2
RETRIPL2
1
V
TTRIP
STARTL3
BUTL3
RTL3
RETRIPL3
IL1
StartL1
IL2
StartL2
StartL3
IL3
Start3ph
L2
L3
1
V
TTRIP
BACK-UP
TRIP

ABB REC 561 Specifications

General

Brand	ABB
Model	REC 561
Category	Touch terminals
Language	English