Lenze EVS93xx FlyingSaw - Manual (Page 88)

FlyingSaw
State machine of the Prepared Solution
Prepared Solution Servo PLC / ECSxA 1.1 EN page 7-4
POU is called independent of the state machine and is therefore a process that runs in parallel
to the state machine. If the error handling detects an error state, the interface to the state
machine ensures the state machine changes to the 'Trouble' state. A reset to the 'Standby' state
is only possible after the cause of the error has been rectified and the error acknowledged.
The POU ErrorHandling is not part of a library in the project, instead it is programmed externally
in structured text as IEC code. In this way the existing error handling can be expanded with
error messages defined by the user.
TIP!
You will find further information on handling errors in the section on the programmable variant of
the Prepared Solution, chapter 8.3