Cause 2:  Rotator is not at "home" position.
Solution (a):  Check rotator for damage or wear.
Solution (b):  Check the connection between the vacuum generator solenoid and the Genine 4 board.
Solution (c): Check that the firmware has set the correct "home" and "away" positions.

Cause 3:  Rotator plate sensor has failed.
Solution a):  Sensor may have failed in the off position. Check the sensor for damage or wear.
Solution b):  Check that the firmware detected the sensor signal correctly, and that the firmware issued a stop command to the x-axis.

Cause 4:  Vacuum sensor has failed.
Solution a):  Sensor may have failed in the off position. Check the sensor for damage or wear.
Solution b):  Check that the firmware detected the sensor signal correctly, and that the firmware issued a stop command to the x-axis.

Cause 5:  Home or away sensor has failed.
Solution (a):  Check the home and away sensors for damage or wear.
Solution (b): Check the connections between the home sensor and the Genine 4 board. Do the same for the away sensor.

Cause 6:  Plate has slipped.
Solution (a):  May be due to a vacuum fault. See Diagnosing the air supply.
Solution (b):  Plate may be obstructed or poorly aligned.

Cause 7:  Solenoid/valve has failed.
Solution (a): Check the solenoid for damage or wear.
Solution (b): Check that the firmware has sent a correct signal to the rotator solenoid.
Solution (c): Check the connection between the solenoid and the Genine 4 board.

Cause 8:  Vacuum is inadequate.
Solution:  There may be insufficient vacuum to rotate the plate. See Rotator doesn't grab plate.

Cause 9:  Rotator is damaged or misaligned.
Solution:  Check rotator for damage or wear. Check alignment of rotator to conveyor table.