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3 Installation
3.1 Precautions to be observed for the choice and installation of the AOPD
The outputs (OSSD) of the AOPD must be used as machine stopping devices and not as command devices.
The machine must have its own Start command.
The dimension of the smallest object to be detected must be larger than the resolution of the AOPD.
The AOPD must be installed in a room complying with the technical characteristics indicated in paragraph
11 – "Technical data".
Do not place the AOPD near strong and/or flashing light sources or similar devices.
Strong electromagnetic interferences can jeopardize the function of the AOPD. Please contact your
ABB Jokab Safety representative for advice.
The operating distance of the device can be reduced in presence of smog, fog or airborne dust.
A sudden change in environment temperature, with very low minimum peaks, can generate a small
condensation layer on the lenses and so jeopardize the function.
3.2 General information on positioning the AOPD
The AOPD must be carefully positioned, in order to offer effective protection: access to the hazard zone must only be
possible by passing through the detection zone of the AOPD.
Warning! Figure 6 shows some examples of possible access to the machine from the top and the bottom sides.
These situations can be very hazardous and the AOPD must be installed at a correct height in order to completely
cover the access to the hazard zone (see Figure 7).
NO
2TLC172289M0201
Rev C
2018-04-17
Figure 6 – Incorrect device positioning
YES
c
Figure 7 – Correct device positioning
12
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