3.9 Alarm Outputs
3-17
3.9 Alarm Outputs
•
$ !'&"'& ! &! % $ &$ + & ! &! ! ,$
&+" ,$ +%&$%%
•
!!) %$% & ,$ &+" ,$ (' ,'""$.&
$ ,!)$.& $ "$&$%
Value
Alarm Type
When alarm value
X is positive
When alarm value
X is negative
0 Alarm function OFF Output OFF
1
UpperĆ and lowerĆlimit
(deviation)
ON
OFF
LH
SP
2
2 UpperĆlimit(deviation)
X
ON
OFF
SP
ON
OFF
SP
X
3 LowerĆlimit(deviation)
X
ON
OFF
SP
ON
OFF
SP
X
4
UpperĆ and lowerĆlimit range
(deviation)
ON
OFF
SP
LH
3
5
UpperĆ and lowerĆlimit alarm
with standby sequence
(deviation)
ON
OFF
SP
LH
4
6
UpperĆlimit alarm with standby
sequence(deviation)
ON
OFF
SP
X
ON
OFF
SP
X
7
LowerĆlimit alarm with standby
sequence(deviation)
ON
OFF
SP
X
ON
OFF
SP
X
8 AbsoluteĆvalueupperĆlimit
ON
OFF
0
X
ON
OFF
0
X
9 AbsoluteĆvaluelowerĆlimit
ON
OFF
0
X
ON
OFF
0
X
10
AbsoluteĆvalueupperĆlimitwith
standbysequence
ON
OFF
0
X
ON
OFF
0
X
11
AbsoluteĆvaluelowerĆlimit with
standbysequence
ON
OFF
0
X
ON
OFF
0
X
'""$. !)$.& ('% *"$%% % , , %& " &+ !$ $
"! & )& %& ('%
& (' ""$. !)$.& $
LHSP LHSP
LHSP
LHSP
LHSP
H<0,L>0
|H| < |L|
H>0,L<0
|H| > |L|
H<0,L<0
H<0,L>0
|H|
y
|L|
H>0,L<0
Case 1 Case 2 Case 3 (Normally ON)
& (' ""$. !)$.& $
LHSP LHSP
LHSP
LHSP
LHSP
H<0,L>0
|H| < |L|
H>0,L<0
|H| > |L|
H<0,L<0
H<0,L>0
|H|
y
|L|
H>0,L<0
|H|
x
|L|
Case 1 Case 2 Case 3 (Normally OFF)
& (' ""$. !)$.& $ )& %& + %#'
!$ & !( '""$. !)$.& $
. %% & $ % !$+ '""$. !)$.& ('% ! +%&$%% !($"
Cases 1 and 2 example:
. % & $ % !$+
& (' ""$. !)$.& $ )& %& + %#'
$ % !$+ '""$. !)$.& ('% ! +%&$%% !($"
J
Alarm type
1
1
1
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