Safety at sheet delivery of sheet-fed printing machines

Predestined for printing operations: the new SOLID-2/SF Multiple Light Beams Safety Devices

Leuze: The sheet delivery of sheet-fed printing machines is the work station where the printed sheets of paper are automatically laid on a palette. In this area the operator must be able to reach in to move palettes in and out, remove print tests or insert pile wedges. Opto-electronic protective devices have been tried, tested and proven in this area for guarding against injuries and complying with normative specifications. With the new SOLID-2/SF Multiple Light Beam Safety Device, printing machine manufacturers now have a safety solution that unites all SOLID benefits and meets the requirements of the C-type standard, EN 1010-2.

EN 1010 specifies how the guarding must be set up and operated at the sheet delivery area, to make the operation more efficient and safer at the same time. In practice this means that with SOLID-2/SF Multiple Light Beam Safety Devices, the safety function of individual beams can be suppressed under certain conditions when the process requires this, such as when placing in empty palettes or driving in auxiliary materials, for example.

In combination with a suitable control unit, the SOLID-2/SF Multiple Light Beam Safety Devices meet all requirements of type 2 protective devices in accordance with IEC/EN 61496, and they also comply with SIL 2 in accordance with IEC/EN 61508. The devices are available in 2 to 4-beam versions and in various lengths and beam distances, so that the respective optimum solution can be found for every specific task at the sheet delivery area.

Just like all SOLID safety sensors, the SOLID-2/SF Multiple Light Beam Safety Device is also uncomplicated, long-living and “lean”, which means it is ideal for integrating into systems, and easy to put into operation. This is due to the easy alignment, wiring and mounting when installing, as each individual beam no longer has to be separately executed, as was previously the case with Single Light Beam Safety Devices. SOLID-2/SF is therefore a tailor-made solution that provides increased efficiency in guarding printing machine sheet delivery areas – from installation through to operation.