User`s manual

apfiff09 marine vacon • 225
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7.16 Auto Fault Reset
The Auto reset function tries to reset the fault automatically during the trial time. An individual fault
can be defined to be reset certain number of times before the actual fault indication is given. The
function will operate as Automatic Restart function if the start command is received as a static
signal. In I/O control of the Marine application, the default start function requires a rising edge
command after fault trigger.
P2.16.1 Automatic reset: Wait time ID717
Defines the time for the attempted fault reset after the fault trigger has passed.
Note: In case of external fault, remove the cause of fault on the external device. The wait
time count starts only when the cause of fault has been removed.
P2.16.2 Automatic reset: Trial time ID718
The Automatic reset function keeps trying to reset the faults appearing during the time
set with this parameter. If the number of faults during the trial time exceed the value of
the respective parameter set with ID720 to ID725 a permanent fault is generated.
Three Auto Reset times
Fault Trig
Auto Reset
Fault Active
Warning Active
Wait time
Trial time
Figure 7-18. Example of Automatic restarts with three restarts
P2.16.3 Automatic restart: Start function ID719
The Start function for restart is selected with this parameter; restart will take place if
there is a static Start command active when an automatic fault reset is made.
0 = Start with ramp
1 = Flying start
2 = Start according to Start Function parameter (Default)
during the trial time. The time count starts from the first autoreset. If the number of faults occurring
during the trial time exceeds the values set by number of tries the fault state becomes active.