64 - ATR244 - User manual
13.d Upper deviation alarm (par. 123
A L .1 . F.
=
up.dev.
)
Pv
Comand Spv
Alarm Spv
O O
On On
Hysteresis
parameter
> 0
Time
Alarm
output
Upper deviation alarm value of alarm
setpoint greater than “0” and hysteresis
value greater than “0” (Par.128
A .1 . H Y . > 0).
With hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line moves
under the alarm setpoint.
Pv
Comand Spv
Alarm Spv
O O
On On
Hysteresis
parameter
> 0
Time
Alarm
output
Upper deviation alarm value of alarm
setpoint less than “0” and hysteresis
value greater than “0” (Par.128
A .1 . H Y . > 0).
With hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line moves
under the alarm setpoint.
13.e Lower deviation alarm (par. 123
A L .1 . F.
=
Lo.dev.
)
Pv
Comand Spv
Alarm Spv
O O
On On
Hysteresis
parameter
> 0
Time
Alarm
output
Lower deviation alarm value of alarm
setpoint greater than “0” and hysteresis
value greater than “0” (Par.128
A .1 . H Y . > 0).
With hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line moves
under the alarm setpoint.
Comand Spv
Alarm Spv
O O
On On
Hysteresis
parameter
> 0
Time
Alarm
output
Lower deviation alarm value of alarm
setpoint less than “0” and hysteresis
value greater than “0” (Par.128
A .1 . H Y . > 0).
With hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line moves
under the alarm setpoint.