Data Blocks/Error Lists
C-15
FM 351 Positioning Module
C79000-G7076-C351-02
C.5 Error Classes
Class 1: Operating Errors
Operating errors are detected asynchronous to operator input/commands. The
operating errors lead to the positioning being aborted, except for error number 9.
This leads to the positioning being terminated.
No. Meaning Diagnostic
Interrupt
1
Software limit switch start passed
Yes
Cause
The actual value is outside the working range.
2
Software limit switch end passed
Yes
Cause The actual value is outside the working range.
3
Travel range start passed
Yes
Cause Limit of traverse range passed (the coordinates of
the traverse range limits are included in the traverse
range)
4
Travel range end passed
Yes
Cause Limit of traverse range passed (the coordinates of
the traverse range limits are included in the traverse
range)
5
Error in final target approach.
Yes
Cause Target range was not reached within the monitoring
time
6
Stationary range left.
Yes
Cause The actual value is outside the stationary range.
7
Positive feedback.
Yes
Cause Actual value change > 1/2 stationary range in the
wrong direction.
8
No change in actual value or change too small
Yes
Cause There is no actual value change or the actual value
change is against the programmed direction within
the monitoring time.
9
Target passed (FM 451)
Yes
Cause The target was passed during “set actual value
on-the-fly”
10
Target range passed.
Yes
Cause Target range was passed after the final target
approach.
11
Switchover point incorrectly switched.
Yes
Cause Axis oscillating at the switchover point.
12
Switch-off point incorrectly switched.
Yes
Cause Axis oscillating at the switch-off/reversal point.
13
Start of target range incorrectly switched.
Yes
Cause Axis oscillating in the target range.