Trainee Guide TR-L2-M2000
Level 2 Maintenance Training – M2000 Dispensing Systems 4-2-17 P/N 73-0018-00 (Revision B)
Exercise Sheet 4-5-3
Checking Zone Sensor
If the heaters are functioning normally, but do not turn on when a part enters that zone, it is
possible that the sensor is burned out or not turned on. Perform the following procedure to
check the zone sensor:
1. In the Main Window, click on Tools.
2. In the Tools Window, click on I/O Test.
3. Click on Conveyor.
This opens the Test Window, a list off all inputs and outputs.
4. If an Interlock is present, set the Interlock to ❙ (ON).
5. Pause the dispensing system by either clicking on Pause in Run Window, or by pressing
Pause on the Dispenser Control Panel.
Wait for all dispenser and conveyor motion to stop before opening the doors.
6. Open the doors or hood.
WARNING! Even if the heaters appear to be off, they are still active and supplied
with power. Use extreme caution when troubleshooting your system heaters.
7. Manually move a board into the pre-dispense zone until it is directly under the zone
sensor.
For left-to-right conveyors, watch the Left Sense I/O in the Test Window. For right-to-
left conveyors, watch the Right Sense I/O.
8. If the Left or Right Sense I/O does not turn ON, the sensor is not functioning, call a
Service Technician.
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