8.2.15 Automatic Reset
P3.10.1 Automatic fault reset
0: Disabled
1: Enabled
The automatic reset function deletes fault state when
the fault cause has been eliminated and the wait time
P10.2 has elapsed. Parameter P10.4 determines the
maximum number of automatic resets that can be
effected during the trial time set by parameter P10.3.
The time count starts from the first automatic reset. If
the number of faults detected during the trial time
exceeds the values of trials, the fault status becomes
permanent and a reset command is needed.
P3.10.2 Wait time
Time after which the converter attempts to restart the
motor automatically after the fault has been cleared.
P3.10.3 Automatic reset tries
Trials attempted during one hour.
P3.10.4 Restart function
We can choose what kind of start function we want to
use when doing an autoreset of the drive. If run
command is kept active during the autoreset
sequence.
0 = Flying Start
1 = Start Function (according to P3.2.4)
P3.10.5 Underload reset Time 1
P3.10.6 Underload reset Time 2
P3.10.7 Underload reset Time 3
Undervoltage fault is reset without limitations, also
when P10.1 is not active. The drive will restart
according the delay times defined by the parameters
P14.1.1 to P14.1.4.
Underload (dry run) fault is reset when P3.10.1 is
active, without limitations in number, but according to
a specific time schedule.
At first fault, autoreset is done after time 1 (P3.10.5).
If underload fault happens again, after the number of
tries defined in P3.10.8, delay becomes time 2
(P3.10.6).
Similarly, delay will change to time 3 (P3.10.7) if
further tries are unsuccessful.
Five minutes of correct working will reset the tries
counter.
Any other fault:
Generic autoreset is enabled by P3.10.1. Faults will
be reset after the wait time (P3.10.2), unless the
number of faults in a hour overcomes the threshold in
P3.10.3. Any fault event, apart undervoltage and
underload, causes counter increasing.
Fault LED (red) blinks during the autoreset
wait time.
P3.10.8 Underload Tries T1, T2
Trials attempted during Underload Reset time 1 and
Underload Reset time 2.
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