Calculation Of Safety Distance Of An Espe Connected To Mosaic; Electrical Connections - Reer MOSAIC M1 Installation And Use Manual

MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC

Calculation of safety distance of an ESPE connected to MOSAIC

Any Electro-sensitive Protective Equipment device connected to MOSAIC, must be
positioned at a distance equal to or greater than the minimum safety distance S so that the
dangerous point can be reached only after stopping the dangerous movement of the
machine.

The european standard:
- ISO 13855:2010- (EN 999:2008) Safety of machinery - Positioning of safeguards with respect
to the approach
provides the elements to calculate the proper safety distance.

Carefully read the installation manual of each device for specific information on the correct
positioning.

Remember
MOSAIC response time + ESPE response time + response time of the machine (i.e. the time
taken by the machine to stop the dangerous movement from the moment in which the stop
signal is transmitted).

Electrical connections


Install safety units in an enclosure with a protection class of at least IP54.

Connect the module when it is not powered.

The supply voltage to the units must be 24Vdc 20% (PELV, in compliance with the
standard EN 60204-1 (Chapter 6.4)).

Do not use the MOSAIC to supply external devices.

The same ground connection (0VDC) must be used for all system components.
1
"Describe the methods that designers can use to calculate the minimum safety distance from a specific dangerous point for
the safety devices, particularly Electro-sensitive devices (eg. light curtains), safety-mats or pressure sensitive floors and
bimanual control. It contains a rule to determine the placement of safety devices based on approach speed and the stopping
time of the machine, which can reasonably be extrapolated so that it also includes the interlocking guards without guard
locking."
8540780 • 10/07/2020 • Rev.38
speeds
that the total
The MOSAIC system units are provided with terminal
blocks for the electrical connections. Each unit can
have 8, 16 or 24 terminals.
Each unit also has a rear panel plug-in connector
(for communication with the master and with the
other expansion units).
The MR2, MR4 and MR8 are connected via terminal
blocks only.

Terminal tightening torque: 5÷7lb-in (0,6÷0,7 Nm).
of parts of
response
the human
time depends
1
body.
on:
15