Pixsys DRR244 - Alarm Intervention Modes; Absolute or Threshold Alarm Active over; AL. 1.F. = Ab.up.a. ); Absolute or Threshold Alarm Active below

User manual - DRR244 - 51
12 Alarm Intervention Modes
12.a Absolute or threshold alarm active over (par. 123 A L.1 . F. = A b . u P. A. )
Time
Hysteresis parameter
 > 0
Alarm output
OFF OFF
ON ON
Alarm Spv
Pv
Absolute alarm active over.
Hysteresis value greater than “0” (Par. 128
a .1 . H Y > 0).
Time
Hysteresis parameter
 < 0
Alarm output
OFF OFF
ON ON
Alarm Spv
Pv
Absolute alarm active over.
Hysteresis value lower than “0” (Par. 128
a .1 . H Y < 0).
12.b Absolute or threshold alarm active below (par. 123 A L.1 . F. = A b . u P. A. )
Time
Hysteresis parameter
 > 0
Alarm output
OFF OFF
ON
ON
Alarm Spv
Pv
Absolute alarm active below.
Hysteresis value greater than “0” (Par. 128
a .1 . H Y > 0).
Time
Hysteresis parameter
 < 0
Alarm output
OFF OFF
ON
ON
Alarm Spv
Pv
Absolute alarm active below.
Hysteresis value lower than “0” (Par. 128
a .1 . H Y < 0).
12.c Absolute or threshold alarm referred to command setpoint active over (par. 123 A L.1 . F. =
Ab . c. u .A. )
Time
Hysteresis parameter
 > 0
Command Spv
Alarm output
OFF OFF
ON
Alarm Spv
Absolute alarm referred to command setpoint active over. Hysteresis
value greater than “0” (Par. 128
a .1 . H Y > 0).
12.d Absolute or threshold alarm referred to command setpoint active below (par. 123 A L.1 . F. =
Ab . c.L.A. )
Time
Hysteresis parameter
 > 0
Command Spv
Alarm output
OFF OFF
ON
Alarm Spv
Absolute alarm referred to command setpoint active below.
Hysteresis value greater than “0” (Par. 128
a .1 . H Y > 0).