Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 07/18
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CERTUS Installation Manual
C 8I 2O
MEANING
LED
REMEDY
Run
Green
IN Fail
Red
EXT Fail
Red
SEL
Orange
IN÷8
Yellow
OSSD1/2
Red/Green
Clear1/2
Yellow
Status1/2
Yellow
Internal fault
OFF
2 or 3
flashes
OFF
Show the
physical
address of
the unit
OFF
Red
OFF
OFF
Return
the
unit
to
Carlo
Gavazzi to be repaired.
Compatibilty
error
OFF
5
flashes
OFF
5
flashes
5
flashes
5
flashes
5
flashes
Firmware version not
compatible with CMM,
return to Carlo Gavazzi
for Firmware upgrade.
OSSD
output error
OFF
4 flashes
OFF
OFF
4 flashes
(only the LED
corresponding
to the output
in FAIL mode)
OFF
OFF
Check OSSD1/2
connections If the
problem persists,
return
the
C
8I
2O
to
Carlo Gavazzi to be
repaired.
Error in
communication
with master
OFF
5 flashes
OFF
OFF
OFF
OFF
OFF
Restart the system
If the p
roblem persists,
return
the
C
8I
2O
to
Carlo
Gavazzi to be repaired.
Error on
other slave
or CMM
OFF
ON
OFF
OFF
OFF
OFF
OFF
Restart the system
Check which unit is
in FAIL mode.
Same type
of slave with
same address
detected
OFF
5
flashes
5
flashes
OFF
OFF
OFF
OFF
Change the unit’s
address (see NODE
SEL).
