gefran 40T 48 Manual De Instrucciones página 7

Normal absolute alarm
AL2
AL1
(*)
alarm 1
alarm 2
For AL1 inverse absolute alarm (min.) with positive H1, 1 t = 1
(*) = OFF if disabling on power-on exists
For AL2 direct absolute alarm (max) with negative H2, 2 t = 0
Normal deviation alarm
(AL1 absolute, AL2 deviation)
AL1+AL2
AL1
alarm 1
alarm 2
For AL1 direct absolute alarm (max) with negative H 1, 1 t = 0
For AL2 direct relative alarm (max) with negative H2, 2 t = 2
•Filter - outputs with reference to parameters F.0 and r.A
F.O = 1
DON = Delayed activation
Alarm
setpoint
Variable
Output
Alarm
rA
DOF = Delayed deactivation
Alarm
setpoint
Variable
Output
Alarm
rA
6 • ALARMS
AL2 + H2
AL1 + H1
time
AL1 + AL2 + H2
AL1 + H1
time
The diagrams refer to a normal absolute alarm with hysteresis H = 0
rA
time
t < rA
F.O = 3
rA rA
time
AL1
inverse
direct
For AL1 inverse absolute, symmetrical alarm with hysteresis H1, 1 t = 5
For AL1 direct absolute, symmetrical alarm with hysteresis H1, 1 t = 4
Symmetrical deviation alarm
AL1+AL2
AL1
AL1-AL2
alarm 1
alarm 2
For AL1 direct absolute alarm (max) with negative H1, 1 t = 0
For AL2 symmetrical deviation alarm H2, 2 t = 6
DBI = Delay in turning on output after output is
Alarm
setpoint
Variable
Output
Alarm
DP0 = Delayed activation only
Alarm
setpoint
Variable
Output
Alarm
rA
16
Symmetrical absolute alarm
AL1 + [ H1 ]
AL1 - [ H1 ]
time
(AL1 absolute, AL2 deviation)
AL1+AL2+H2
AL1+H1
time
F.O = 2
turned off
rA t < rA
t > rA
F.O = 4
at power-on
time
time