Operating Instructions

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24-hour support [phone] (Dial 2)
3
Wait time (P3.10.3)
Automatic reset: Trial time (P3.10.4)
Number of trials (P3.10.5)
The Automatic reset function keeps resetting the faults appearing during the time set with this parameter.
If the number of faults during the trial time exceed the value of parameter P3.10.5, a permanent fault is
generated. Otherwise the fault is cleared after the trial time has elapsed and the next fault starts the trial
time count again.
Parameter P3.10.5 determines the maximum number of automatic fault reset attempts during the trial
time set by this parameter. The time count starts from the first auto-reset. The maximum number is in-
dependent of the fault type.
Figure 28. Automatic reset function.
Dead band hysteresis (P3.12.1.9)
Dead band delay (P3.12.1.10)
The PID controller output is locked if the actual value stays within the dead band area around the refer-
ence for a predefined time. This function will prevent unnecessary movement and wear on actuators,
e.g. valves.
11104.emf
Fault trigger
Aut or eset
Tr i al t im e
Wai t t i m e
P3.10.3
Reset 1 Reset 2
Tr i al t i m e
P3.10.4
Fault active
Al ar m
Number of tr ials: (P3.10.5 = 2)
Wai t t i m e
P3.10.3
Wai t t i m e
P3.10.3