Chapter
4
Operating Instructions
miniTwin2
22
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8013482/YT85/2016-02-23
Subject to change without notice
Mounting
4
Mounting
This chapter describes the preparation and completion of the mounting of the miniTwin2
safety light curtain. The mounting requires two steps:
determining the necessary minimum distance
mounting using the available brackets (see section “Safety light curtains” in the SICK
product catalogue “Industrial Safety Systems” or www.sick.com)
The following steps are necessary after mounting:
completing the electrical connections (chapter 5)
alignment of the miniTwin2 safety light curtain (section 6.2)
testing the installation (section 6.7)
4.1
Determining the minimum distance
The safety light curtain must be mounted with sufficient minimum distance:
from the hazardous point
from reflective surfaces
No protective function without sufficient minimum distance!
The reliable protective effect of the safety light curtain depends on the system being
mounted with the correct minimum distance from the hazardous point.
4.1.1
Minimum distance from the hazardous point
A minimum distance must be maintained between the safety light curtain and the
hazardous point. This ensures that the hazardous point can only be reached after the
dangerous state of the machine has been completely stopped.
The minimum distance as per EN ISO 13 855 and EN ISO 13 857 depends on:
stopping/run-down time of the machine or system
(the stopping/run-down time is shown in the machine documentation or must be
determined by taking a measurement.)
response time of the entire protective device, e.g. miniTwin2 consisting of host and
guest (response times see 9.1 “Data sheet” on page 64)
reach or approach speed
resolution of the safety light curtain and/or beam separation
other parameters that are stipulated by the standard depending on the application
WARNING
