Moniteur 50 Series SMART Positioners - Manual (Page 82)

Operation
4-20
Positioner SIPART PS2/SIPART PS2 PA
C79000-G7476-C150–01
Function of alarm output on fault
The fault alarm for monitoring the system deviation over time can also
be triggered by the following events:
❑ Loss of power
❑ Process fault
❑ Actuator fault
❑ Valve fault
❑ Loss of pressure
The alarm fault can also be logically ORed with the non–automatic si-
gnal (Manual or Configuring) and the binary inputs.
Monitoring time for setting of alarms
The set value (s) defines the time within which the positioner must have
reached the corrected state. The corresponding response threshhold is
defined with parameter 44.
The alarm output is set if the set time is exceeded.
Response threshold of alarm
A value (%) for the permitted system deviation for the purposes of trig-
gering the alarm can be set here.
If parameters 43 and 44 are both set to “Auto” the alarm is set if the
short–step zone is not reached within a certain time. This time is 5x the
initialization time within 5 to 95 % of the travel and 10x the initialization
time outside 10 to 90%.
Preset
Restoration of the factory setting and initialization reset
☞
Note
After “Preset” the positioner must be re-initialized. All the maintenance
parameters calculated so far are reset.
42. FCT
43. TIM
44. LIM
45.PRST