153
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
5.16.4 Roll back control for closed loop
P1.15.13.1
Roll Back
Kp ID1787
P1.15.13.2
Roll Back Torque
ID1788
P1.15.13.3
Roll Back Level
ID1789
5.17 Auto fault reset
The Auto reset function tries to reset the fault
automaticallyduring the trial time. An individual fault can
be defined tobe reset certain number of times before the
actual faultindication is given. The function will operate as
AutomaticRestart function if the start command is received
as a staticsignal. In I/O control of the SPX Advanced
application, thedefault start function requires a rising edge
command afterfault trigger.
Code
ID
Description
Notes
P1.16.1
717
Automatic reset: wait time “wait time”
Defines the time for the attempted fault reset after the fault trigger has passed.
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.
P1.16.2
718
Automatic reset: trial time “trial time”
The Automatic reset function keeps trying to reset thefaults appearing during the time
set with this parameter. Ifthe number of faults during the trial time exceed the valueof
the respective parameter set with ID720 to ID725 apermanent fault is generated.
Three Auto Reset times
Fault Active
Trial time
Warning Active
Auto Reset
Wait time
Fault Trig
P1.16.3
719
Automatic restart: start function “start function”
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)
The following ‘Number of tries’ parameters determine the maximum number of
automatic restarts 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.
Figure 5-17 . Example of Automatic restarts with three restarts