SICK T4000 Notice D'instructions page 159

Operating Instructions
T4000
Tab. 1:
Meaning of the
LED displays
8009704/US09/2010-12-20
Electrical connection
LED indicators
LED designation
STATE
OUT
ERROR
In the event of operating errors (ERROR), the
evaluation unit can be reset to operating state by
interrupting the supply voltage for approx. 10 sec-
onds.
© SICK AG • Industrial Safety Systems • Germany • Subject to change without notice
LED colour Meaning
LED green Normal operation
blinking Teach-in operation (see
system status table for other
signalling functions)
LED yellow Valid actuator detector
LED red – Test input activated
– Internal circuitry error
– Invalid Teach-in operation
(see system status table)
– EMC interference
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Chapter
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