Error Message:

ALE: Picker vacuum sensed plate before vacuum turned on, remove plate from picker \ncheck Picker Vacuum Threshold

Applies to:

• Platesetter_3244

Service Information:

Check the value of pvt.

Operator Action:

Check that there is no plate on the picker.

Cause:

• During ale init, it is assumed that there is no plate on the picker. (picker vacuum is not turned off). The picker vacuum is then turned ON and the vacuum checked against pvac_threshold, if it is above the threshold then, either there was a plate on there all along (and it must be manually removed), or the system is sensing a plate when there isn't one. This could be caused by an incorrect pvt value or a blockage in the sucction cups.

See Also:

• NVS: sat pvt
• Command: pvac