Operating instructions

Mode of Operation OI: BK MIKRO 7
Page 16 of 32 Rev. 2.01 dated 05.02.2007
3.2 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.)
without return travel monitoring:
Results will be indicated on reaching the scanner's stop position.
Note:
Its return travel will not influence scanning results.
– with return travel monitoring:
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.
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.
3.3 Return travel monitoring
BK MIKRO 7 allows monitoring the return travel of the wand.
The signal length on "Start" input determines whether the return travel will be monitored:
Before return travel begins, i.e. in the reversing point of the scanner (in the second reversing
point for scanning in both directions), the system will re-read the current "Start" signal status.
 Return travel monitoring enabled, if "Start" signal is still present in reversing point.
 Return travel monitoring off, if "Start" signal has already been removed in reversing point.
Return travel monitoring will detect malfunctions!
Example for suitable use of return travel monitoring: BK MIKRO 7 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 "K.O." Machine stops!
Result without return travel monitoring "O.K." Damage of object/machine!