schmersal RSS 36-D - Safety-Sensors with Serial Diagnostic Function

Table 1: Examples of the diagnostic function of the safety-sensor with conventional diagnostic output
Sensor function LED's Diagnostic-
output
Safety
outputs
Comments
green red yellow  Y1, Y2 
I. Supply voltage On Off Off 0 V 0 V Voltage on, no
evaluation of
the voltage
quality
II. actuated Off Off On 24 V 24 V The yellow LED
always signals
the presence of
an actuator
within range.
III. Actuated,
actuator in limit
area
Off Off Flashes
(1Hz)
24 V
pulsed
24 V The sensor
must be
adjusted before
the distance to
the actuator
increases and
before the
safety outputs
are disabled,
thus stopping
the machine.
IV. Error warning,
sensor
actuated
Off Flashes Off 0 V 24 V After 30
minutes if the
error is not
rectified
V. Error Off Flashes Off 0 V 0 V Refer to table
with flash
codes
VI. Teach actuator Off On Flashes 0 V 0 V Sensor in
teaching mode
VII. Protection time Flashes Off Off 0 V 0 V 10 minutes
pause after re-
teaching
VIII. Error in input
circuit X1
and/or X2
Flashes
(1Hz)
Off Off 0 V 0 V Example: door
open; a door in
the safety
circuit
upstream is
also open.
IX. Error in input
circuit X1
and/or X2
Flashes
(1Hz)
Off On 24 V 0 V Example: door
closed, a door
in the safety
circuit
upstream is
open.
7.4 Safety-sensors with serial diagnostic function