User manual

URDR0001 - User manual - 55
Time
O O
On On
Alarm Spv
Pv
Hysteresis
parameter
 < 0
Alarm
output
Absolute alarm with controller in
cooling functioning
(par. 11
Act. t. selected Co o L ) and
hysteresis value less than “0” (par. 28
A.1.HY. < 0).
NB
10
Absolute Alarm or Threshold Alarm Referring to Setpoint
Command (
a . c.AL. selection)
O
On
O
Time
Alarm Spv
Hysteresis
parameter
 > 0
Alarm
output
Comand Spv
Absolute alarm refers to the command
set, with the controller in heating fun-
ctioning (par. 11
Act. t. selected
Heat ) and hysteresis value greater
than “0” (par. 28
A.1.HY. > 0).
The command set can be changed by
pressing the arrow keys on front panel
or using serial port RS485 commands.
NB
10