description of parameters
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2.9
AUTO RESTART PARAMETERS
2.9.1
Automatic restart: Enable
Set this parameter to 1 to enable the automatic restart function.
Restart function works for following faults:
Undervoltage, Overvoltage, Overcurrent, IGBT overtemperature, Motor
overtemperature and External fault.
2.9.2
Automatic restart: Wait time
Defines the time before the frequency converter tries to automatically restart the
motor after the fault has disappeared.
2.9.3
Automatic restart: Trial time
The Automatic restart function restarts the frequency converter when the faults have
disappeared and the waiting time has elapsed.
Figure 10. Example of Automatic restart with two restarts.
The time count starts from the first autorestart. If the number of faults occurring
during the trial time exceeds three, the fault state becomes active. Otherwise the fault
is cleared after the trial time has elapsed and the next fault starts the trial time count
again.
If a single fault remains during the trial time, a fault state is true.
Fault trigger
Motor stop signal
Motor start signal
Supervision
Wait time
Par. 2.9.1
Restart 1
Restart 2
Trial time
Par. 2.9.2
Fault active
RESET/
Fault reset
Autoreset function: (Trials = 2)
NX12k67
Wait time
Par. 2.9.1
Wait time
Par. 2.9.1
