ABB REC 523 Technical Reference Manual

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ABB REC 523 Technical Reference Manual Manual pdf 44 page image

441MRS750881-MUMRemote Monitoring and Control UnitTechnical Reference ManualREC 523When returning to normal operation, the IRF LED on the LED panel returns to blankstate. In addition, an event 0/E56 is generated over the serial communication.5.7.4. Fault codesWhen an internal fault is indicated by REC 523, the self-supervision systemgenerates an IRF code that indicates the type of the fault.The fault can be read in theRelay Setting Toolís menu Status/General/IRF code.Table 5.7.4-1 gives an overview of the fault origin.5.8. Configuration5.8.1. REC 523 configurationThe Relay Configuration Tool is based on the IEC 61131-3 standard. The standarddefines the programming language used for the configuration.The programmable system of REC 523 allows the output contacts to be operated inaccordance with the state of the logic inputs and the outputs of the protection,control, measurement and condition monitoring functions. The programmable logiccontroller (PLC) functions (for example interlocking and alarm logic) areprogrammed with Boolean functions, timers, counters, comparators and flip-flops.The program is written in a function block diagram language by using theconfiguration software.After the configuration has been built and successfully compiled, the RelayConfiguration Tool project (RCT project in CAP 505) including the relayconfiguration can be downloaded to the device with the Relay Download Tool. Theproject can also be uploaded from REC 523 with the same tool.However, the relay configuration and the RCT project are saved in the non-volatilememory only after they have been stored via the parameter Store. To activate thenew configurations, the REC 523 device should be reset via the parameterSoftware reset. The parameters can be found on the Relay Configuration Toolby opening the Configuration tab and clicking the General subtab. Likewise, thestoring and the resetting can be done via the Relay Download Tool by using the relaycommand buttons Store and Reset.Do not reset REC 523 before reading the IRF code. The code shouldbe noted in a service report when overhaul is ordered. In case of arepeating IRF, send the REC 523 device to the manufacturer.Table 5.7.4-1 Fault origin overviewCodes Explanation0 → Faults related to the module of the device, for example to BIO card3000 → Faults related to the parameter database6000 → Faults related to the analogue measurement inputs7000 → Software faults15000 → Faults related to testing