Leuze electronic RSL 430 - Mounting; Basic infos

Mounting
Leuze electronic RSL 430 50
7 Mounting
The safety sensor's protective function is only guaranteed when the device arrangement, configuration,
protective field dimensioning and mounting are coordinated with the respective application.
The installation work must only be performed by a competent person in compliance with the applicable
standards and these instructions. The mounting must be thoroughly inspected on completion.
Ä You must observe and comply with the respective relevant machine-specific standards and regulations
(see chapter 16 "Standards and legal regulations").
Ä Observe the basic information on mounting (see chapter 7.1 "Basic infos").
WARNING
Improper mounting may result in serious injury!
The protective function of the safety sensor is only ensured if appropriately and professionally
mounted for the respective, intended area of application.
Ä Only allow competent persons to install the safety sensor.
Ä Maintain the necessary safety distances (see chapter 7.1.1 "Calculation of safety dis-
tanceS").
Ä Make sure that stepping behind, crawling under or stepping over the protective device is reli-
ably ruled out and reaching under, over or around is taken into account in the safety dis-
tance, if applicable with additional distanceC
RO
corresponding to ENISO13855.
Ä Take measures to prevent that the safety sensor can be used to gain access to the danger
zone, e.g. by stepping or climbing into it.
Ä Observe the relevant standards, regulations and these instructions.
Ä After mounting, check the safety sensor for proper function.
Ä Clean the safety sensor at regular intervals.
Environmental conditions: see chapter 15 "Technical data"
Care: see chapter 13 "Care, maintenance and disposal"
7.1 Basic infos
7.1.1 Calculation of safety distanceS
Optical protective devices can only perform their protective function if they are mounted with adequate
safety distance. When mounting, all delay times must be taken into account, such as the response times of
the safety sensor and control elements as well as the stopping time of the machine, among others.
The following standards specify calculation formulas:
• ENISO13855, "Safety of machines - The positioning of protective device in respect of approach
speeds of parts of the human body": mounting situation and safety distances.
General formula for calculating the safety distanceS of an Optoelectronic Protective Device acc. to
ENISO13855
S [mm] = Safety distance
K [mm/s] = Approach speed
T [s] = Total time of the delay, sum from (t
a
+t
i
+t
m
)
t
a
[s] = Response time of the protective device
t
i
[s] = Response time of the safety relay
t
m
[s] = Stopping time of the machine
C [mm] = Additional distance to the safety distance
NOTICE
If longer stopping times are determined during regular inspections, an appropriate additional
time must be added to t
m
.