Pixsys ATR 121 - Lower Deviation Alarm

15
11.4 Upper Deviation Alarm ( selection)
On On
Off Off
Pv
Time
A
larm
output
Comand Spv
> 0
Hysteresis
parameter
A
larm Spv
Upper deviation alarm
value of alarm setpoint
greater than “0” and
hysteresis value greater
than“0” (Par.23 > 0)
N.B.: hysteresis value can’t
be less than “0”
On On
Time
Off Off
A
larm
output
Pv
Comand Spv
> 0
Hysteresis
parameter
A
larm Spv
Upper deviation alarm
value of alarm setpoint
less than “0” and
hysteresis value greater
than“0” (Par.23 > 0)
N.B.: hysteresis value can’t
be less than “0”
16
11.5 Lower Deviation Alarm ( selection)
OnOn
Time
Off Off
A
larm
output
Pv
Comand Spv
> 0
Hysteresis
parameter
A
larm Spv
Lower deviation alarm
value of alarm setpoint
greater than “0” and
hysteresis value greater
than “0”
(Par.23
> 0).
N.B.: hysteresis value can’t
be less than “0”
On On
Time
Off Off
Comand Spv
Alarm
output
Pv
> 0
Hysteresis
parameter
A
larm Spv
Lower deviation alarm
value of alarm setpoint
less than “0” and
hysteresis value greater
than “0”
(Par.23
> 0).
N.B.: hysteresis value can’t
be less than “0”