
NOVA541
- 55 -
4-6. Alarm (G.ALM)
Table 4. Types of Alarm
NO Display
Type
Direction Standby
ON Condition
OFF Condition
Fwd. Rev. No Yes
1
AH.F
Upper-limit PV
▣
▣
PV ≥ ALn
PV < (ALn - An.DB)
2
AL.F
Lower-limit PV
▣
▣
PV ≤ ALn
PV > (ALn + An.DB)
3
DH.F
Upper-limit Deviation
▣
▣
(PV - SP) ≥ ALn.H
(PV - SP) < (ALn.H - An.DB)
4
DL.F
Lower-limit Deviation
▣
▣
(PV - SP) ≤ -ALn.L
(PV - SP) > (-ALn.H + An.DB)
5
DH.R
Upper-limit Deviation
▣ ▣
(PV - SP) ≥ ALn.H
(PV - SP) < (ALn.H - An.DB)
6
DL.R
Lower-limit Deviation
▣ ▣
(PV - SP) ≤ -ALn.L
(PV - SP) > (-ALn.H + An.DB)
7
DO.F
Out of Deviation limits
▣
▣
(PV - SP) ≥ ALn.H
∨
(PV - SP) ≤ -ALn.L
(PV - SP) < (ALn.H - An.DB)
∧
(PV - SP) > (-ALn.H + An.DB)
8
DI.F
In band of
Deviation limits
▣
▣
(PV - SP) ≤ ALn.H
∧
(PV - SP) ≥ -ALn.L
(PV - SP) > (ALn.H - An.DB)
∨
(PV - SP) < (-ALn.H + An.DB)
9
AH.R
Upper-limit PV
▣ ▣
PV ≥ ALn
PV < (ALn - An.DB)
10
AL.R
Lower-limit PV
▣ ▣
PV ≤ ALn
PV > (ALn + An.DB)
11 AH.FS
Upper-limit PV
▣
▣
PV ≥ ALn
PV < (ALn - An.DB)
12 AL.FS
Lower-limit PV
▣
▣
PV ≤ ALn
PV > (ALn + An.DB)
13 DH.FS
Upper-limit Deviation
▣
▣
(PV - SP) ≥ ALn.H
(PV - SP) < (ALn.H - An.DB)
14 DL.FS
Lower-limit Deviation
▣
▣
(PV - SP) ≤ -ALn.L
(PV - SP) > (-ALn.H + An.DB)
15 DH.RS
Upper-limit Deviation
▣
▣
(PV - SP) ≥ ALn.H
(PV - SP) < (ALn.H - An.DB)
16 DL.RS
Lower-limit Deviation
▣
▣
(PV - SP) ≤ -ALn.L
(PV - SP) > (-ALn.H + An.DB)
17 DO.FS
Out of Deviation limits
▣
▣
(PV - SP) ≥ ALn.H
∨
(PV - SP) ≤ -ALn.L
(PV - SP) < (ALn.H - An.DB)
∧
(PV - SP) > (-ALn.H + An.DB)
18 DI.FS
In band of
Deviation limits
▣
▣
(PV - SP) ≤ ALn.H
∧
(PV - SP) ≥ -ALn.L
(PV - SP) > (ALn.H - An.DB)
∨
(PV - SP) < (-ALn.H + An.DB)
19 AH.RS
Upper-limit PV
▣
▣
PV ≥ ALn
PV < (ALn - An.DB)
20 AL.RS
Lower-limit PV
▣
▣
PV ≤ ALn
PV > (ALn + An.DB)
21 SK.DV
SOAK
▣
▣
※ SOAK Alarm ON, OFF condition
22
HBA
Heater Break Alarm
▣
▣
HB.CD ≤ HB.CS
HB.CD > (HB.CS + HB.DB)
▪ AL : Alarm point, n : Alarm Number, ALn.H : Deviation upper-limit of Alarm n.