11. Troubleshooting
115
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i. -|Transparent setting guide|-
11. Troubleshooting
•
Lockout condition
: If an error occurs during power-on or self-test, the safety-related function is deactivated and the OSSD output is
switched to the OFF state within the response time. The control output goes to OFF within the response time and
maintains, operating the status indicator for presenting the status of the light curtain. The 7-segment display on the
emitter and receiver shows the same error codes. The other code could be displayed under the unstable condition from
the communication line (RS485A/B) or series connection.
•
Warning condition
: If the light curtains operate in an unstable state, only some parts of safety-related functions activate normally.
The OSSD output maintains ON state, but it depends on the light incident.The status indicator displays the status
of the light curtain. The 7-segment display shows the warning code.
※In case of blanking warning, the OSSD output is swiched to OFF state. For more information, see "5.6 Blanking"
11.1 Error code (Lockout condition)
Itswitchesbetweenlevel1andlevel2.
I
ndicator
ErrorName
Cause
CheckandMeasures
Level1 Level2
C
-
RS485
Communication
Error
(Communication
errorbetween
Emitterand
Receiver)
Communicationlineorotherwiringis
brokenorshort-circuited.
CheckthepowerI/Ocableandseries
connectioncable.
Thecommunicationlinedoesnotmeet
thespecifications.
Usewiresthatmeetthespecifications.
Communicationerroroccurreddueto
noise.
Checktheenvironmentalconditions
aroundthecommunicationlineand
removethenoisesource.
Contactfailureoccurredatthe
connectorofpowerI/Ocableorthatof
seriesconnectioncable.
CheckthepowerI/Ocableandseries
connectioncable.
E
→
0
1
-
3
EmitterMCUError ErrorisdetectedattheinternalMCUof
theemitter.
Replacetheemitter.
4
-
7
ReceiverMCU
Error
ErrorisdetectedattheinternalMCUof
thereceiver.
Replacethereceiver.
E
→
1
1
-
2
PowerSupply
Error
Powervoltageisoutoftheratedrange.
Connecttotheratedpowervoltage
(24VDC±20%).
Usethededicatedpowersupply.
Donotusethepowerwithotherdevices.
E
→
2
1
-
2
EndCapError
Theendcapisassembledincorrectlyor
isnotconnected.
Checktheconnectionoftheendcap.
Incorrectseries
connection
Incorrectintheseriesconnectionor
invalidcommunicationconnection
betweentheemitterandreceiver.
Checktheconnectionoftheseries
connectioncable.
ConnectthesynchronizationlinesforRS485
(A/B)betweentheemitterandreceiverand
thelampoutputcablecorrectly.
E
→
3
1
-
3
WiringErrorin
OSSDOutputs
ThewireofOSSD1or2isbrokenor
short-circuited.
Checkwhetherthewiringconnectionof
OSSD1or2outputiscorrect.
TheOSSD1or2outputisaffectedby
externalnoise.
Checkwhetheranexternalnoiseisflowing
throughthewiringoftheOSSD1or2
outputandremovethenoisesource.
ToomuchcurrentflowsintotheOSSD1
or2output.
Checktheloadconnectedtothewiringof
OSSD1or2outputmeetstheratedrange.
TheoutputofOSSD1or2isinvalid.
CheckwhetherthewiresofOSSD1or2
outputarecorrectlyconnectedorreplace
thereceiver.
4
-
5
FailureinOSSD
InternalCircuit
TheinternalcircuitoftheOSSD1or2
outputisbroken.
Replacethereceiver
