Vacon NX series - Page 328

Parameters ID720 to ID725 determine the maximum number of automatic restarts during
the trial time set by parameter ID718. The time count starts from the first autoreset. If the
number of faults occurring during the trial time exceeds the values of parameters ID720 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 234567 (2.8.3)
The selection of the start mode for Automatic reset.
Table 173: Selections for parameter ID719
Selection
number
Selection name Description
0 Start with ramp
1 Flying start
2 Start according to ID505
720 AUTOMATIC RESTART: NUMBER OF TRIES AFTER UNDERVOLTAGE FAULT TRIP 234567
(2.8.4)
This parameter determines how many automatic restarts can be made during the trial time
set by parameter ID718 after and undervoltage trip.
Table 174: Selections for parameter ID720
Selection
number
Selection name Description
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.
721 AUTOMATIC RESTART: NUMBER OF TRIES AFTER OVERVOLTAGE TRIP 234567 (2.8.5)
This parameter determines how many automatic restarts can be made during the trial time
set by parameter ID718 after an overvoltage trip.
VACON · 328 PARAMETER DESCRIPTIONS
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