OSSD 1
V
t
1
OSSD 2
V
t
300 µs
300 µs
Figure 3: Course of the OSSD test over time
1
Usually every 40 ms.
T
he interval is dynamic and can be smaller than 40 ms.
4.4.2 Application diagnostic output
The signal of the application diagnostic output (AUX) changes as soon as the actuator is
mo
ved into or leaves the response range of the safety switch. In other words, the output
signal changes when the protective device is opened and closed. This is not a safety
output.
Table 2: Switching behavior of application diagnostic output
Actuator in
r
esponse range
The device is in
error state
Signal status a
In1 and In2
OSSDs Application diag‐
nostic output
Yes No High High Low
Yes Yes High/Low Low High
Yes No Low Low Low
No Yes/No High/Low Low High
Table 3: Switching behavior of application diagnostic output only STR1-SAXM0AC8S01
Actuator in
r
esponse range
The device is in
error state
Signal status a
In1 and In2
OSSDs Application diag‐
nostic output
Yes No High High High
Yes Yes High/Low Low Low
Yes No Low Low Low
No Yes/No High/Low Low Low
Table 4: Switching behavior of application diagnostic output only STR1-SAXM0AC8S02
Actuator in
r
esponse range
The device is in
error state
Signal status a
In1 and In2
OSSDs Application diag‐
nostic output
Yes No High High High
Yes Yes High/Low Low Low
Yes No Low Low High
No Yes/No High/Low Low Low
4 PROJECT PLANNING
14
O P E R A T I N G I N S T R U C T I O N S | STR1 8018754/12IU/2020-01-30 | SICK
Subject to change without notice