Operating instructions
Mode of Operation OI: BK MIKRO LIN.B
Page 18 of 30 Rev. 2.02 dated 31.05.2007
3.3 Output of results
• Fault message (K.O.)
A fault message will be output immediately on detection.
The scanner will return to its stop position.
• Good cycle message (O.K.)
On reaching the stop position, scanning process results will be indicated.
This ensures that the scanner will have left the monitoring range at the time the results
are output and that there are no further waiting periods to be considered.
Only for "Multi":
The indication of "O.K." is possible already after successful scanning, not only after
reaching the stop position.
In the "O.K." state, the "O.K." relay will be active, while the "K.O." relay remains inactive.
In all other cases, "K.O." will be indicated, i.e. the "O.K." relay will be inactive,
the "K.O." relay will be active.
Note:
"K.O." will not only be indicated when a tool has broken but also when the scanner
cannot leave its stop position for any reason (e.g. mechanical "sticking", cable
break etc.).
The results of a scanning cycle will remain latched until the following cycle starts.
3.4 Start behavior
After the switching-on the system automatically performs a function test with subsequent, self-
acting zero position recognition.
Here the wand drives 4-times up and back in total. If the zero position cannot be identified during
this operation, the "K.O." output put and the yellow LED is flashing.
Possibly the reason is based on the "blocked" movement of the wand e.g. through a dirty shaft
entry. If mistake keeps on occurring after cleaning the wand, the complete scanner must be
changed.
Attention:
During the switching-on the wand moves out approx. 10 mm from the scanner!
3.5 Return travel monitoring
In case of non-attaining the stop position the "K.O." relay will be activated.
Return travel monitoring will detect malfunctions!
Example for suitable use of return travel monitoring:
BK MIKRO LIN.B has successfully monitored the object. But the wand
is stopped by an obstacle on its return travel, cannot return into its stop position,
and will block the transport of the tool.
Result with return travel monitoring Î "K.O." Î Machine stops!