Operation
OperatingManualPNOZs50
1002194EN02
48
7 Operation
7.1 Displayelementsfordevicediagnostics
7.1.1 LEDdisplay
Key:
LEDon
LEDflashes
ThedevicehasLEDstodisplaystatesanderrors.
LED Error
Run Power Out1 Out2 I/O
Fault
Fault
Green Green Green Green Red Red
Deviceisin"PowerOn"state(startup
phase)
Deviceisin"Configuration"state
Deviceisin"RUN"state.
Supplyvoltagetothepowercircuitsis
withinthepermittedrange.TheLEDs
"Out1"and"Out2"maybeonoroff.
Supplyvoltagetothepowercircuitsis
outsidethepermittedrange.TheLEDs
"Out1"and"Out2"maybeonoroff.
OutputO1+/O1isswitchedon.
OutputO2+/O2isswitchedon.
InputsY10and/orY11forfastshutdown
arenotat"0"afterPowerOnoraftera
faulthasbeenreset.The"Power"LED
maybeonormaybeflashing.
InputsY20and/orY21forfastshutdown
arenotat"0"afterPowerOnoraftera
faulthasbeenreset.The"Power"LED
maybeonormaybeflashing.
Faultatinputsand/oroutputs.Faultthat
canberepairedbytheuserleadingto
safecondition.
Internalerror.Faultthatcannotbere
pairedbytheuser,leadingtosafecon
dition.