Troubleshooting - IMAGE: PLL is not able to track drum motion (error number 16011)

Home | Contact Us | Submit Troubleshooting Info | Search | Help

IMAGE: PLL is not able to track drum motion (error number 16011)

Applies to

VLF Platesetter
VLF Trendsetter
Trendsetter 3244
Platesetter 3244
ThermoFlex

Description

The drum position tracking system is not working properly. It is not able to even start tracking the drum.

Solutions

See Drum: Position Error - drum rotation blocked or PID gain settings wrong (6024).
See General VLF drum drive, encoder, and PLL troubleshooting
The encoder block optics may be dirty. The encoder block may be cleaned using a can of commpressed air. Use only pure clean canned air to blow off the encoder optics.

Notes

If none of these solutions fixes the problem, the cause could be bad encoder electronics casting
machining, excessive encoder disk face runout or a damaged disk (this is less likely).

Adhesive has been found on one encoder disk. It did not clean off with isopropanol and interfered with the indexing.