Data Blocks/Error Lists
C-17
FM 351 Positioning Module
C79000-G7076-C351-02
No. Diagnostic
Interrupt
Meaning
9
Axis not synchronized
no
Cause The “incremental approach” is only possible with an
axis that is already synchronized.
10
Target/distance cannot be positioned
no
Cause The distance between the current actual position
and the specified target is less than the switch-off
difference
17
Reference point approach not possible
no
Cause An SSI encoder was connected.
18
Relative or absolute incremental approach not possible
no
Cause The incremental dimension is invalid.
19
Switch-off difference not greater than 1/2 target range for
incremental dimension number 255
no
Cause The switch-off difference for incremental dimension
255 is less than half the target range
20
Travel in specified direction illegal
no
Cause Not enough distance to software limit switch
Class 4: Data Errors
Data errors are detected synchronous to operator input/commands. Data errors do
not lead to an error reaction.
No. Meaning Diagnostic
Interrupt
6
Specified increment too large No
Cause The value is not within "100 m or "1000 m. The
distance/ target must be greater than the travel
range
On a rotary axis, the coordinate must be > = 0 and
less than the end of the rotary axis.
10
Bad zero offset (FM 451) No
Cause The zero offset is more than " 100m or " 1000m.
The software limit switches are outside the travel
range (–100m...+100m or –1000m...+1000m) after
setting the zero offset.
Rotary axis: The value of the zero offset is higher
than the end of the rotary axis.
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