9-5
PPC Manual Revision 1
Chapter 9: Alarm Functions
Deviation within High and Low Limits Alarm, Deviation(%) within High and
Low Limits Alarm
PV
Alarm hysteresis
Alarm hysteresis
Deviation within high
and low limits alarm setpoint
ON ON
OFF OFFON
Deviation within
alarm output
Target setpoint
(SP)
Contact type in the figure above: Energized when an event occurs (factory default).
Target SP High Limit Alarm and Target SP Low Limit Alarm
ON
Taraget SP
OFF
Contact type in the figure above: Energized when an event occurs (factory default).
Time
Target SP high limit
alarm setpoint
Target SP low limit
alarm setpoint
alarm output
Target SP low limit
alarm output
Alarm hysteresis
SP changing SP changing SP changing SP changing
SP in ramp rate setting
Alarm hysteresis