Wachendorff ur3274, Manual, Page: 119 / 128

UR3274U - User manual 119
12 Alarm Intervention Modes
12.a
Absolute Alarm or Threshold Alarm (
a. aL.
selection)
Alarm Spv
Pv.
Off
On On
Off
Hysteresis
parameter

> 0
Time
Alarm output
Absolute alarm with
controller in heating
functioning (Parameter 11
act.t.
selected
Heat
) and
hysteresis value greater
than “0” (Parameter 28
a.1.Hy.
> 0). *
Off
On On
Off
Hysteresis
parameter

< 0
Alarm Spv.
Pv
Time
Alarm output
Absolute alarm with
controller in heating
functioning (Parameter 11
act.t.
selected
Heat
) and
hysteresis value less than
“0” (Parameter 28
a.1.Hy.
< 0). *
On On
Hysteresis
parameter

> 0
Alarm Spv
Pv
Time
Alarm output
Absolute alarm with
controller in cooling
functioning
(Parameter 11
act.t.
selected
cooL
) and
hysteresis value greater
than “0” (Parameter 28
a.1.Hy.
> 0). *