34 ATR171 -
User manual
41
a.1.s.p.
Alarm 1 Setpoint Protection
Alarm 1 set protection. Does not allow the user to change setpoint
free
Modification allowed (
Default
)
Lock
Protected
Hide
Protected and not visualized
42
aL. 2
Alarm 2
Alarm 2 selection. Alarm intervention is associated to AL2
(See par. 12)
dis.
Disabled (
Default
)
a. aL.
Absolute alarm, referring to process
b. aL.
Band alarm
H.d.aL.
Upper deviation alarm
L.d.aL.
Lower deviation alarm
a.c.aL.
Absolute alarm, referring to command setpoint
st.aL.
Status alarm (active in Run / Start)
cooL
Cooling action
t.run
Timer run
t.end
Timer end
43
a.2.pr.
Alarm 2 Process
Selects value related to alarm 2
pro.1
Process 1 (
Default
)
pro.2
Process 2
mean
Processes mean
diff.
Processes difference
abs.d.
Processes difference as absolute value
44
a.2.s.o.
Alarm 2 State Output
Alarm 2 output contact and type of action
n.o. s.
(N.O. start) Normally open, active from Start (
Default
)
n.c. s.
(N.C. start) Normally closed, active from Start
n.o. t.
(N.O. threshold) Normally open, active from alarm reaching
8
n.c. t.
(N.C. threshold) Normally closed, active from alarm reaching
8
45
a.2.Hy.
Alarm 2 Hysteresis
-999..+999 digit
9
(tenth of degree if temperature),
Default
: 0.0.
8
On activation, the output is inhibited if the controller is in alarm mode. Activates only if alarm
condition reappers, after that it was restored.
9
The display of the decimal point depends on the setting of parameter
sen
. and
d.p. 1
or
sen.2
and
d.p. 2.
Summary of Contents for ATR 171
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