If one of the muting sensors in the hazardous area is no longer engaged and the sensor
gap monit
oring of 0.5 s has been exceeded, the muting hold time of 4 s begins. ESPE
protection is bypassed within this time period and material or a means of transport can
pass through the ESPE without the machine stopping.
Muting ends if the muting hold time of 4 s has passed.
4.3.6.4.2 End of muting by ESPE
Important information
DANGER
Muting end by ESPE delayed or ineffective
The muting end by ESPE function is delayed or ineffective if the ESPE is switched on for
the first time and the ESPE is configured with an automatic calibration of the protective
field width.
b
Configure a dynamic protective field width.
Principle of operation
Usin
g the muting end by ESPE function, exit monitoring ends if the ESPE is clear again
(1) and a sensor gap monitoring of 0.5 s has passed. This results in a shorter muting
time and greater safety at the same time.
Figure 22: Muting ends as soon as the ESPE is clear again
!
ESPE
"
Time at which muting ends
§
Material
$
Transportation equipment
%
Hazardous area
The following applies to the muting end by ESPE function:
•
The entire length of the material and means of transport must be detected by the
muting sensors or the ESPE
•
Exit monitoring is ended too early if one of the muting sensors remains clear for
longer than 0.5 s, i.e. the sensor gap monitoring has been exceeded
•
If the ESPE is clear, exit monitoring is ended after the sensor gap monitoring of
0.5 s has passed
•
If the light path of the ESPE does not become clear, exit monitoring is ended at the
latest once the muting condition is no longer satisfied
PROJECT PLANNING 4
8023872/18YZ/2021-01-14 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD
43
Subject to change without notice
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