Pixsys ATR224 - Band Alarm (Par. 123 = Band); Asymmetric A.band) Alarm (Par. 123 = A.a.band)); Upper Deviation Alarm (Par. 123 = )

User manual - ATR224 - DRR224 - 31
12.e Band alarm (par. 123 A L .1 . F. = band )
Command Spv
Time
Hysteresis parameter
 > 0
Hysteresis parameter
 > 0
Pv
Alarm Spv
Alarm Spv
Alarm output
ON
OFF OFF OFF
ON ON
Band alarm hysteresis value greater than “0” (Par. 128 a .1 . H Y > 0).
Command Spv
Time
Hysteresis parameter
 < 0
Pv
Alarm Spv
Alarm Spv
Alarm output
ON
OFF OFF OFF
ON ON
Hysteresis parameter
 < 0
Band alarm hysteresis value lower than “0” (Par. 128 a .1 . H Y < 0).
12.f Asymmetric band alarm (par. 123 A L .1 . F. = A.band )
Command Spv
Time
Hysteresis parameter
 > 0
Pv
Alarm Spv H
Alarm Spv L
Alarm output
ON
OFF OFF OFF
ON ON
Hysteresis parameter
 > 0
Asymmetric band alarm with hysteresis value greater than “0” (Par.
128
a .1 . H Y > 0).
Command Spv
Time
Hysteresis parameter
 < 0
Pv
Alarm Spv H
Alarm Spv L
Alarm output
ON
OFF OFF OFF
ON ON
Hysteresis parameter
 < 0
Asymmetric band alarm with hysteresis value lower than “0” (Par. 128
a .1 . H Y < 0).
12.g Upper deviation alarm (par. 123 A L .1 . F. = up.dev. )
Command Spv
Time
Hysteresis parameter
 > 0
Pv
Alarm Spv
Alarm output
OFF OFF
ON ON
Upper deviation alarm value of alarm setpoint greater than “0” and
hysteresis value greater than “0” (Par.128
A .1 . H Y . > 0).
NB: with hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line
moves under the alarm setpoint.
Command Spv
Time
Hysteresis parameter
 > 0
Pv
Alarm Spv
Alarm output
OFF OFF
ON ON
Upper deviation alarm value of alarm setpoint less than “0” and
hysteresis value greater than “0” (Par.128
A .1 . H Y . > 0).
NB: with hysteresis value less than “0” (
A .1 . H Y . < 0) the dotted line
moves under the alarm setpoint.