28
29
24 VDC +
–
1
2
3
4
RETRAIN (VIOLET)
24 VDC+ POWER IN (RED)
GROUND (BLACK)
INPUT COMMON (WHITE/VIOLET)
Checker sources current
External Retrain
You can configure both Part Finding Sensors and Pattern Sensors to be retrainable by checking
External Retrain
in the sensor control panel
Whenever Checker receives a signal on the RETRAIN line, Checker retrains any retrainable Part
Finding Sensors and Pattern Sensors using the part of most recently acquired image that lies
within the retrain region
When External Retrain is enabled for a sensor, the yellow corner markers indicate the region
that is used to retrain the Sensor when an External Retrain signal is received Sensors can be
retrained in both Setup mode and in Run mode
In Setup mode, can manually signal an External Retrain by clicking
Main Menu ►External
Retrain
on SensorView Teach Pendant or selecting
Checker->Retrain
or pressing F9 on the PC
Checker indicates that it has successfully retrained by quickly blinking its lights twice If it could
not retrain the part, it blinks its lights slowly three times You can also configure a Checker output
line to signal when an External Retrain succeeds or fails
1
Part finding sensor detects part normally.
2
With a new part, the Part Finding Sensor fails
3
Apply a pulse (minimum 15 ms) on RETRAIN line
4
After retraining, Part Finding Sensor now finds new part.
This example shows Part Finding Sensor being retrained:
Summary of Contents for Checker 3G Series
Page 1: ...COGNEX Checker 3G Series User s Guide...
Page 25: ...COGNEX 590 7096...
