Vega VEGAPULS 61 Operating Instructions Manual

Contents

Vega VEGAPULS 61 Operating Instructions Manual Manual pdf 44 page image

448 Maintenance and fault rectificationVEGAPULS 61 • Profibus PA28444-EN-1412158 Maintenance and fault rectification8.1 MaintenanceIf the instrument is used properly, no special maintenance is requiredin normal operation.8.2 Rectify faultsThe operator of the system is responsible for taking suitable meas-ures to rectify faults.VEGAPULS 61 offers maximum reliability. Nevertheless, faults canoccur during operation. These may be caused by the following, e.g.:• Sensor• Process• Voltage supply• Signal processingThe first measures to be taken are to check the output signals as wellas to evaluate the error messages via the display and adjustmentmodule. The procedure is described below. Further comprehensivediagnostics can be carried out on a PC with the software PACTwareand the suitable DTM. In many cases, the causes can be determinedand the faults rectified this way.Should these measures not be successful, please call in urgent casesthe VEGA service hotline under the phone no. +49 1805 858550.The hotline is manned 7 days a week round-the-clock. Since we offerthis service worldwide, the support is only available in the Englishlanguage. The service is free, only standard call charges are incurred.The following table describes possible errors and helps to removethem:Error Cause RectificationWhen an addi-tional instrumentis connected, thesegment fails.Max. supplycurrent of the seg-ment couplerexceededMeasure the current consumption, re-duce size of segmentWrong pres-entation of themeasured value inSimatic S5Simatic S5 cannotinterpret the num-ber format IEEEof the measuredvalueInsert converting component from Sie-mensIn Simatic S7 themeasured valueis always present-ed as 0Only four bytesare consistentlyloaded in the PLCUse function component SFC 14 toload 5 bytes consistentlyReaction when malfunc-tions occurCauses of malfunctionFault rectification24 hour service hotlineChecking Profibus PA