Installation Manual

8-78 Troubleshooting
Y-Axis Home Sensor Verification
1. Exit FmNT, shut down Windows NT, press the black
OFF (0) button on the Operator’s Console, and
switch the Main Circuit Breaker to the
OFF (0) position.
2. Manually move the Dispensing Head to the middle of the dispensing chamber.
3. Remove the white Cover from the Y-axis Cable (P/N 06-4541-00) connection.
4. Switch the Main Circuit Breaker to the
ON (I) position.
WARNING! CAUTION!
Use caution when reaching your hand into the dispensing chamber while system
is under power. Failure to take appropriate precautions could result in serious
injury or property damage.
5. Measure VDC between Pin 1 and Pin 2 of the Y-axis Cable (P/N 06-4541-00).
6. Is the reading greater than 4 VDC?
Go to Step 9
Go to Step 7
7. Measure VDC between Pin 1 and Pin 4 on the Y-axis Home Cable.
8. Is the reading greater than 4 VDC?
Home/Limit Switch PWA (P/N 60-0785-00) has
failed. See
Parts Replacement section.
Go to Step 12
9. Locate J28 on the XY Servo Interface PWA.
10. Measure VDC between Pin 1 and Pin 2 of the J8 connector.
11. Is the reading greater than 4 VDC?
XY Servo Interface PWA (P/N 06-1211-00) has
failed. See
Parts Replacement section.
Y-axis Home Cable (P/N 06-4541-00) has failed. See
Parts
Replacement section.
No
Yes
No
Yes
No
Yes