Pixsys ATR 121 Series - Band Alarm (A. b Selection); Upper Deviation Alarm (A.d.5 Selection)

User manual - ATR121 - 37
12.c Band alarm (
A. b
selection)
1
Pv
O O
On On On
Hysteresis
parameter
> 0
Time
Alarm
output
Band alarm with
hysteresis.
N.B.: hysteresis (par. 23
HY. a
) can not be lower
than 0. The alarm value
is the upper or lower
deviation from the
command setpoint that
enables the output.
Exemple:
• command set =
100°C
• alarm set = 5°C
• alarm active if
temperature > 105°C
or temperature < 95°C
12.d
Upper deviation alarm (
a.d.s
selection)
1
Pv
Comand Spv
Alarm Spv
Off Off
Hysteresis
parameter
 > 0
Time
Alarm
output
Alarm Spv
Comand Spv
Upper deviation alarm
value of alarm
setpoint greater than “0”.
N.B.: hysteresis (par. 23
HY. a
) can not be lower
than 0.