Issue
DC1100 & DC1400 Optimiser / Compensator Controller Cold Start malfunction.
Environment
DC1100 Optimiser / Compensator Controller.
DC1400 Optimiser / Compensator Controller
Cause
DC1100 & DC1400 Optimiser / Compensator malfunction preventing Cold Start procedure being undertaken..
Resolution
1. Repeat DC1100 & DC1400 Controller Cold Start procedure.
A manufacturing problem experienced with the DC1100 and DC1400 may result in difficulty applying the Cold Start procedure.
Faults have been reported in respect of a number of DC1100 Controllers in particular, where difficulty has been experienced when applying the Cold Start procedure.
The fault appears in those Controllers where the Enter and Exit Keys foul their respective cut-outs in the Top Cover Panel, thus preventing Cold Start from being achieved.
This is due to a conflict in assembly tolerances that can cause the Keys to remain depressed after they have been pressed in, due to their being trapped by the cut-outs they should pass through.
In such instances it may be necessary to undertake the Cold Start procedure a number of times before any trapped Key is released sufficiently to enable resetting of the Controller to be achieved.
Actions are currently in hand to rectify this matter and the positioning of the cut-outs in the Top Cover Panel relative to the Key positions has been addressed from a design point of view.
Examples of the Top Cover Panel incorporating newly dimensioned cut-outs are not due to be available for inclusion in production assemblies until Week Number 2010 45 at the earliest however.
Consequently current production assemblies incorporating the existing Top Cover Panel will continue to be utilised in all newly manufactured Controllers for the moment at least.
Similarly an opportunity will not arise until Week 2010 45 for any Controllers currently held in stock in S-E Sweden to be re-worked to include the new Top Cover Panel prior to their sale.
