Operating instructions
T4000 Multi
Tab. 1:
Indications of the
LEDs
8011036/TF94/2010-06-29 © SICK AG • Industrial Safety Systems • Germany • Subject to change without notice
System description
3.3
Status indicators and
operational statuses
3.3.1 Status indicators
The operational statuses of the safety sensor
T4000 Multi are indicated by means of three LEDs
on the safety evaluation device.
LED designation
STATE
OUT
DIA
3.3.2 Operational statuses
The following table gives an overview of the possible
operational statuses and their indication by the
LEDs on the safety evaluation device. The symbols
in the table describe the status of an LED.
Examples:
Red
1 Hz Red The red LED flashes with a frequency
Red
LED colour
Meaning
Green
Status indication with different
flashing frequencies
Yellow
Lights up when the safety
circuit is closed
Red
Lights up in the event of an
operator error, external fault
(external device monitoring
fault) or internal device error as
well as TEST
The red LED is illuminated
constantly.
of 1 Hz.
The red LED is off.
3
Chapter
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