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)
Lo ck
Protected
Hi d e
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 . a L.
Lower deviation alarm
a.c.aL.
Absolute alarm, referring to command setpoint
s t. a L.
Status alarm (active in Run / Start)
cooL
Cooling action
t.run
Timer run
t.en d
Timer end
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a .2. p r.
Alarm 2 Process
Selects value related to alarm 2
p r o .1
Process 1 (Default)
pro .2
Process 2
mean
Processes mean
di f f.
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.