Datalogic SG4-14-030-OO-P, Инструкция по эксплуатации

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GENERAL INFORMATION
7
1
where:
S = Minimum safety distance in mm.
t1 = Response time of the ESPE in seconds (see chapter 11)
t2 = Machine stopping time in seconds.
H = Beam height from ground; this height must always be less than 1,000 mm.
Fig. 4 – Minimum installation distance (horizontal)
Practical examples:
Let's suppose to have a light curtain with height = 600 mm
To calculate the distance of the device from the ESPE, in a vertical position, the following
formula is used:
S = K*T + C
where:
T = t
1
+ t
2
t
1
= ESPE response time + SE-SR2 relay release time (max 80 ms)
t
2
= Machine total stopping time.
C = 8 * (d – 14) for devices with resolution <= 40 mm
D = resolution
In all cases, if K = 2000mm/sec then S > 500 mm. Distance will have then to be recalculated
using K = 1600 mm/sec.
WARNING: the reference standard is EN ISO 13855 (replaces EN
999) “Safety of machinery - Positioning of safeguards with respect
to the approach speeds of parts of the human body”.
The following information is to be considered as indicative and
concise. For correct safety distance please refer to complete
standard EN ISO 13855.