3
Chapter
Tab. 2:
Operational
statuses and LED
indications
150
© SICK AG • Industrial Safety Systems • Germany • Subject to change without notice 8011036/TF94/2010-06-29
System description
LED
LED OUT
STATE
yellow
green
Commissioning
4 Hz
1 Hz
Normal operation
15 Hz
Functional test
Error indication
LED DIA
Operational status
red
First use after shipping
without short-circuit bridge
connected to J1 and J2
Teach process
Teach process successful
Self-test (takes about 10 s)
after applying operating
voltage
At least one monitored
protective device is open
All monitored protective
devices are closed, the
safety outputs are enabled
(after pressing the RESET
button when reset is
connected)
Self-test (TST input = 24 V)
Internal component failure of
a device
or
external interference (EMC)
is too high
Operating instructions
T4000 Multi