Task $2$: Calculate the Safety Distance for a Light Curtain Application.

Subject: Estimation of the safety distance as a function of machine parameters and AOPD design.

Relevance: Supports Chapter $7.$ Fundamental requirement for all Electro$-$Sensitive Protection Equipment, in particular light curtains.

Starting Information: In this exercise you will perform the safety distance calculation in two ways: by hand and by using SD Manager $3.$ This free software is used to configure advanced functions of the F$3$SG$-$SR light curtains, but can also assist in performing safety distance calculations.

A vertical approach with no angle is the most common way safety light curtains are used. In this situation, light curtains are mounted vertically and there is no possibility of an operator reaching around the light curtains to reach the hazard $($figure $).$Method $1$: Calculations by hand

You will use a F$3$SG$-4$SRA$0160-14$ light curtain and a G$9$SA$-301$ safety relay as a simple safety setup. The key pieces of information are:

$$ F$3$SG$-4$SRA$0160-14$ has $14$ mm resolution

$$ F$3$SG$-4$SRA$0160-14$ has a maximum $18$ ms

$$ G$9$SA$-301$ has a maximum $10$ ms response time

MetSD Manager $3$ allows you to simply input the information and let the software perform the calculations for you by following a few simple steps.hod $2$: SD Manager $3$