AEG PV.630 manual Diagnostic Functions, Reading Out the Memory, Removing Accumulated Dust

Protect PV.630 Maintenance and Servicing

4.3.2Diagnostic Functions

The comprehensive diagnostic functions implemented in the sys- tem not only increase its operational reliability considerably, but al- so reduce the time required for maintenance work and trouble- shooting to a minimum.

The system is equipped with the following diagnostic functions, some of which are optional:

Self-diagnosis:

This is activated when the system is switched on. Internal auxiliary programs monitor and signal faults, including those from the bus system, the control PCBs or the sensors.

Data logger:

Specified measured data and parameters are saved for every fault that occurs. This data is read out and evaluated as required.

4.3.3Reading Out the Memory

iThe fault memory is described in the operating instruc- tions.

4.3.4Removing Accumulated Dust

If large quantities of dust have accumulated, the system should, as a precaution, be cleaned with dry compressed air in order to en- sure adequate heat dissipation.

4.3.5Obligation to Keep a Written Record

Inspection results and details of any maintenance work carried out must be recorded in writing. Experience has shown that the best way to document inspection results is in the form of a test report.

The following information must be recorded:

∙Maintenance schedule

∙Date of the measure carried out

∙Work performed

∙Any special notes on the work performed

∙Persons who carried out the work

∙Signatures of the persons who carried out the work

∙Signature of the person responsible (supervisor)

A correct test report, completed in full, is important for technicians as evidence of exoneration in case of later complaints or for inves- tigations in case of damage. For this reason, test reports should be retained for a long time (around 10 years).

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