Leuze electronic SD4T 14 - Page 29

Installation
Leuze electronic SOLID-4 29
TNT 35/7-24V
DEUTSCHENGLISHFRANÇAISITALIANOESPAÑOLNEDERLANDS
The height of the protective field H above the reference plane and the resolution d of the
AOPD are related to each other as follows:
The safety distance "S" for danger zone guarding is
calculat
ed in accordance with EN 999
using the formula:
H
min
[mm] = 15 x (d -50) [mm] or d [mm] = H
min
/15 + 50 [mm]
H
min
= Minimum height of the protective field above the reference plane,
maximum height = 1000 mm
Heights equal to or less than 300 mm are considered too low for adults to crawl
under
d = Resolution of the AOPD
S [mm] = K [mm/s] x T [s] + C [mm]
S = Safety distance in mm
K = Approach speed of 1600 in mm/s.
T = Total delay time in seconds;
total from:
The response time of the protective device, t
AOPD
a)
The response time of the safety interface, if any, t
Safety interface
b)
The machine’s stopping time, t
Machine
c)
C = (1200 mm – 0,4 H), but not less than 850 mm (arm’s length)
H = Height of the protective field above the floor
a)
b)
c)
See Chapter 11.2
See safety interface technical data
See technical data of the machine or stopping time measurement
S [mm] = 1600 [mm/s] x (t
AOPD
+ t
Safety interface
+ t
Machine
) [s] + (1200-0.4 H) [mm]