ABB REG316 4 Series, Operating Instructions Manual

Page: 339 / 980

REG 316*4 1MRB520049-Uen / Rev. F
ABB Switzerland Ltd
3-301
3.6.2. Logic (Logic)
A. Application
Logical combination of binary input signals or of output signals
from the protection functions, e.g. for
·
specific signals required by the application
·
supplementary protection functions.
B. Features
·
binary I/P channels assignable to
·
binary I/P signals
·
protection function O/P signals
· All I/P channels can be inverted
·
Following logic functions available for selection:
·
OR gate with 4 I/P’s
·
AND gate with 4 I/P’s
·
R/S flip-flop with 2 I/P’s for setting
and 2 I/P’s for resetting
:
·
The O/P is “0”, if at least one of the reset I/P’s is “1”.
·
The O/P is “1”, if at least one of the set I/P’s is “1” AND
none of the reset I/P’s is “1”.
·
The O/P status is sustained when all the I/P’s are at “0”.
·
Every logic has an additional blocking I/P, which when acti-
vated switches the O/P to “0”.
C. Inputs and outputs
I. C.t./v.t. inputs:
·
none
II. Binary inputs:
·
4 logic inputs
·
blocking
III. Binary O/P’s:
·
tripping
IV. Measurements:
·
none.