Operation
OperatingManualPNOZmc7p
1003050EN02
15
7 Operation
Whenthesupplyvoltageisswitchedon,thePNOZmultisafetysystemcopiestheconfigur
ationfromthechipcard.
TheLEDs“POWER”,“DIAG”,“FAULT”,“IFAULT”and“OFAULT”willlightuponthebase
unit.
TheexpansionmodulePNOZmc7pisconfiguredandstartedautomatically.
7.1 Messages
Legend:
LEDon
LEDoff
LED Meaning
RUN Green Busconnectionavailable
} Busconnectionisnotavailable
} Status:timeout
} NosupplyvoltageatthefieldbusmodulePNOZmc7p
LErr Red Faultdetected:Wrongstationaddressortransmissionrate
} Flashesevenly:settinghasbeenchangedduringoperationand
PNOZmc7phasnotbeenrestarted
} Flashesunevenly:faultyconnection,e.g.terminatingresistoris
missing
} Busconnectionavailable
} NosupplyvoltageatthefieldbusmodulePNOZmc7p
RD Green PNOZmc7pReceivingdata
} PNOZmc7pNotreceivingdata
} NosupplyvoltageatthefieldbusmodulePNOZmc7p
SD Green PNOZmc7pSendingdata
} PNOZmc7pNotsendingdata
} NosupplyvoltageatthefieldbusmodulePNOZmc7p