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User manual -
ATR142- 53
13.d
Upper Deviation Alarm (
H.d.aL.
selection)
Off
Off
On
On
Hysteresis
parameter
> 0
Pv
Alarm Spv
Command Spv
Time
Alarm output
Upper deviation alarm
value of alarm setpoint
greater than “0” and
hysteresis value greater
than “0” (Parameter 28
a .1.Hy .
> 0). **
Off
Off
On
On
Hysteresis
parameter
> 0
Pv
Alarm Spv
Command Spv
Time
Alarm output
Upper deviation alarm
value of alarm setpoint
less than “0” and
hysteresis value greater
than “0” (Parameter 28
a.1.Hy.
> 0). **
13.e
Lower Deviation Alarm (
L.d.aL.
selection)
Off
Off
On
On
Hysteresis
parameter
> 0
Pv
Alarm Spv
Command Spv
Time
Alarm output
Lower deviation alarm
value of alarm setpoint
greater than “0” and
hysteresis value greater
than “0” (Parameter 28
a.1.Hy.
> 0). **