Danfoss VLT 5000 Operating Instructions Manual

Also see for VLT 5000 FLUX: Service manual Operating instructions Operating instructions Operating instructions Operating instructions

Danfoss VLT 5000 Operating Instructions Manual Manual pdf 48 page image

VLT® 5000/ 5000 FLUX/ 6000 HVAC/8000 AQUA PROFIBUSWarning and alarmmessages Extended DiagnosisBy the extended diagnose function it is possibleto receive alarm and warning information from thefrequency converter. The setting of parameter 849determines which frequency converter events shouldtrigger the extended diagnose function.If parameter 849 is set to Disable [0], no extendeddiagnose data is sent regardless wether theyappear in the frequency converter.If parameter 849 is set to Alarms [1], extendeddiagnose data is sent, if one or more alarms arrivein the Alarm parameters. If parameter 849 is set toAlarms/Warnings [2], extended diagnose data is sentif one or more alarms/warnings arrive in the Alarmparameters or the warning parameter.The sequence of an extended diagnose is as follows:If an Alarm or warning appears, the frequencyconverter will indicate that to the master by sendinga high prior message via the output data telegram.This will cause the master to ask the frequencyconverter for extended diagnose information, whichwill be replied by the frequency converter.When the Alarm/warning disappears, the frequencyconverter will again indicate that to the master, andon the following request from the master, return astandard DP diagnose frame (6 bytes).The extended diagnose frame has the following content:Byte Content Description0 through 5 Standard DP Diagnose data Standard DP Diagnose frame6 Pdu length xx Header of Extended diagnostic data7 Status type = 0x81 Header of Extended diagnostic data8 Slot = 0 Header of Extended diagnostic data9 Status info = 0 Header of Extended diagnostic data10 through 13 VLT parameter 540 VLT warning word14 through 17 VLT parameter 541 VLT Status word18 through 21 VLT parameter 538 VLT Alarm word22 through 23 VLT parameter 953 Communication warning wordMG.90.G1.02 - VLT is a registered Danfoss trademark 47