Rockwell Automation 445L Installation and Operating Instructions - Manual (Page 12)

Muting Controller Box Installation and Operating Instructions
12
R
Original instructions
Muting Types
The international standard IEC 62046 describes two- and four-sensor T- and L-type muting. The sensor positions recommended below are
taken from IEC62046 and IEC61496 (A.7). The light curtain should detect the material, not the carrier (pallet).
T-Type 2 Sensor
T-Type 4 Sensor
Figure 20: The distance d5 should be as short as practicable in order to avoid persons entering the hazardous zone without being detected
when following immediately after the pallet or the transport system. The muting beam cross point has to be in the hazardous zone.
h1: Lower height of safety protective field The distances d1, d2, d3 and d4 has to be selected, that the
difference in timing is > 50 ms.
h2 > h1
h2: Muting sensor height
h2 >= h1 d5: distance from the safety light curtain to the muting sensor
crossing point.
d1, d2,
d3, d4: Distance light curtain — muting sensor
Muting sensor reflectors
h1: Lowest beam of safety light curtain Recommended mounting position according to IEC 62046 F.2:
h2: Muting sensor height d1 < 200 mm
d1: Distance light curtain — muting sensor d3 < 200 mm
d3: Distance light curtain — muting sensor d2 > 250 mm
d2: Distance muting curtain — muting sensor
d4 d3
h1
h2
d3 d4
d1 d2
d5
Hazardous
Zone
d1 d3 d2 d2
h1
h2
d1 d3 d2 d2