LED status display
The LEDs "RDY" and "ERR" show the current safety status:
Fig. 27: P
osion of the RDY and ERR LEDs
LED indicaon for status messages
Status display aer inializaon /during operaon
LED "RDY" (yellow) Status Meaning
o - No status message acv
e
on (yellow)
Restart acknowledgement requested
blinking yellow 2 Hz
SOS acv
e
blinking yellow 1 Hz
Service status Transfer of parameter set requested.
LED indic
aon for errors
Error message
"ERR" LED (red) Status Meaning
o - The device is working correctly.
blinking red 2 Hz
Safety bus error Communicaon via the sa
fety bus is not established:
•
There is no valid conguraon.
•
The start-up has not been completed yet.
blinking red 1 Hz
Safety technology error One of the following errors has been detected:
•
A monit
oring device has been acvated.
•
An acknowledgeable error is acve.
Display for cric
al device errors
LED "RDY" (yellow) "ERR" LED (red) Status Meaning
blinking yellow blinking red
Crical s
ystem error
•
"Lock
-out" (CPU stopped). STO is acve.
•
If the system error occurs again aer switching the
24 V supply, the device is defecve. It must be
replaced.
Funconal sa
fety
LED status display
LED indicaon for status messages
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