User manual

UR3274U - User manual 55
NB: a) The example refers to alarm 1; the function can also be
enabled for alarm 2 on model that include it.
b) With hysteresis less than “0” (
a .1 . H y . < 0) the segmen-
ted line moves above the alarm setpoint.
O O
On On
Hysteresis
parameter
 > 0
Pv
Alarm Spv
Command Spv
Time
Alarm output
Upper deviation alarm va-
lue of alarm setpoint less
than “0” and hysteresis va-
lue greater than “0” (Par.28
a .1 . H y . > 0).
NB: a) The example refers to alarm 1; the function can also be
enabled for alarm 2 on model that include it.
b) With hysteresis less than “0” (
a .1 . H y . < 0) the segmen-
ted line moves above the alarm setpoint.
Lower Deviation Alarm (
L. d . a L. selection)
O O
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 va-
lue greater than “0” (Par.28
a .1 . H y . > 0).
NB: a) The example refers to alarm 1; the function can also be
enabled for alarm 2 on model that include it .
b) With hysteresis less than “0” (
a .1 . H y . < 0) the segmen-
ted line moves under the alarm setpoint.