Pilz PSEN op4F-A-14-180/1 - Manual (Page 15)

OPERATING MANUAL PSEN op4F/H-A series
1003067-EN-02 15
2.2 General information on positioning the device
Special care should be taken when positioning the safety light curtain to ensure it provides
efficient protection. The device must be installed so that the danger zone cannot be
accessed without interrupting the protected field.
Fig. 5 shows some possibilities for accessing the machine from above
and below. Situations like this could turn out to be extremely dangerous.
For this reason, the safety light curtain must be installed at a height from
which access to the danger zone can be covered in full (Fig. 6).
Fig. 5 – Device positioned incorrectly
Fig. 6 – Device positioned correctly
Under normal operating conditions, the machine may only be started if the operator is
outside the danger zone.
If it is impossible to install the light curtain in the immediate vicinity of the danger zone, the
possibility of access from the side must be excluded, for example, by installing a second
horizontal light curtain. See Fig. 8.
If the operator is able to enter the danger zone, additional
mechanical protection must be installed to exclude access.
NO
YES