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ASFIFF12 High Speed
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Figure 5-24. Example of Automatic restarts with two restarts
Parameters
to ID725 determine the maximum number of automatic restarts during
the trial time set by parameter ID718. The time count starts from the first autorestart. If
the number of faults occurring during the trial time exceeds the values of parameters
to ID725 the fault state becomes active. Otherwise the fault is cleared after the
trial time has elapsed and the next fault start the trial time count again.
If a single fault remains during the trial time, a fault state is true.
719
Automatic restart: Start function
(2.8.3)
The Start function for Automatic restart is selected with this parameter. The parameter
defines the start mode:
0
= Start with ramp
1
= Flying start
2
720
Automatic restart: Number of tries after undervoltage fault trip
(2.8.4)
This parameter determines how many automatic restarts can be made during the trial
time set by parameter
after and undervoltage trip.
0
= No automatic restart
>0
= Number of automatic restarts after undervoltage fault. The fault is
reset and the drive is started automatically after the DC-link voltage
has returned to the normal level.
NX12k67
Fault trigger
Motor stop signal
Motor start signal
Supervision
Wait time
Par.ID717
Restart 1
Restart 2
Trial time
Par. ID718
Fault active
RESET/
Fault reset
Autoreset function: (Trials = 2)
Wait time
Par.ID717
Wait time
Par.ID717