Operation
Operating Manual PSEN ml b 1.1/2.1/2.2
1003884-EN-12
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10.2 Error display
LED status Switch status Remedy / measure
Device Safety Gate Input Lock
Red Yellow Yel-
low
Display not
definitive
Safety switch de-
activated due to
under or over-
voltage
Check the supply voltage and
switch the supply voltage off and
then on again.
Red
Previous LED display is
retained
Display not
definitive
Safety outputs in
fault condition
Check the wiring and switch the
supply voltage off and then on
again.
Red Red
Auxiliary release/
escape release
activated
} Auxiliary release: Turn back the
auxiliary release screw and then
switch the supply voltage on (see
Recommissioning [ 20]).
} Escape release: Pull the button of
the escape release pin back
again and then switch on the sup-
ply voltage again (see Recommis-
sioning under escape release).
Red
Display not definitive Safety switch
does not start
Change the safety switch.
Green
Yellow
Dis-
play
not
defin-
itive
Display not
definitive
Wrong actuator Use only approved combinations
(see Approved
combinations [ 11])
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