If the reset pulse on the “Reset” input is, for example, provided by an (F)PLC, then the
pulse must be of a specific length.
≥ 500 ms
0
10
20
24
U [V]
t [ms]
Figure 61: Reset pulse requirements
Make sure that pulses do not have a frequency of 1 Hz or 4 Hz, as otherwise there may
be overlaps with the output signals for “Front screen contaminated” or “System error”.
This overlap will result in an error on the safety laser scanner.
12.3
Response times
Overview
The total response time of the application depends on the:
•
Basic response time at the related resolution and the maximum protective field
range
•
Set multiple sampling
•
OSSDs used
Total response time T
S
Calculating the total response time T
S
b
The total response time T
S
is calculated using the following equation:
T
S
= t
B
+ T
MFA
+ T
EFIO
where
•
t
B
= Basic response time (60 ms or 120 ms)
•
T
MFA
= Supplement due to multiple sampling > 2
•
T
EFIO
= Supplement for the usage of external OSSDs via EFI
Multiple sampling
Multiple sampling is always set to at least 2 on the device. For a multiple sampling of 3
or above, a supplement must be added to the response time. The related supplement is
dependent on the basic response time and the multiple sampling.
Table 31: Supplements for multiple sampling
Multiple sampling
Supplement for basic
response time 60 ms
Supplement for basic response time
120 ms
3 times
30 ms
60 ms
4 times
60 ms
120 ms
5 times
90 ms
180 ms
6 times
120 ms
240 ms
TECHNICAL DATA
12
8012029/ZA20/2019-11-14 | SICK
O P E R A T I N G I N S T R U C T I O N S | S3000 Cold Store
113
Subject to change without notice
