Troubleshooting - VLF Trendsetter AL Rotator Doesn't Grab Plate

Applies to	VLF Trendsetter AL

Machines affected	All machines with an L-conveyor installed.

Error Number	None

Component	Conveyor (L-type only)

Problem	When vacuum is applied to the vacuum rotator to grab the incoming plate, the vacuum either doesn't come on at all, or is weak.

Causes and Solutions	Cause 1: Safety loop is broken. Solution: See VLF Trendsetter AL safety loop. Cause 2: Conveyor vacuum is inadequate. Solution (a): Check solenoid and valve for damage or wear. Solution (b): Check for poor connections and faulty wiring between the vacuum generator solenoid and the Genine 4 board. Solution (c): Check that the firmware has sent the signal to turn on the vacuum generator solenoid. Check that the vacuum setpoint is not too low. Solution (d): Check that the air supply to the vacuum generator is adequate. Check for low pressure or leaks. Also check the vacuum line and the plate suction device for leaks. See Diagnosing the air supply. Cause 3: Genine board has failed. Solution: Genine 4 driver may have failed. See VLF Trendsetter AL Genine boards.

Causes and Solutions

Cause 1: Safety loop is broken.
Solution: See VLF Trendsetter AL safety loop.

Cause 2: Conveyor vacuum is inadequate.
Solution (a): Check solenoid and valve for damage or wear.
Solution (b): Check for poor connections and faulty wiring between the vacuum generator solenoid and the Genine 4 board.
Solution (c): Check that the firmware has sent the signal to turn on the vacuum generator solenoid. Check that the vacuum setpoint is not too low.
Solution (d): Check that the air supply to the vacuum generator is adequate. Check for low pressure or leaks. Also check the vacuum line and the plate suction device for leaks. See Diagnosing the air supply.

Cause 3: Genine board has failed.
Solution: Genine 4 driver may have failed. See VLF Trendsetter AL Genine boards.

Technical contact	Seppo Leppanen
Date submitted	30 May 2000
Date modified

Rotator doesn't grab plate