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6 Installation
Installation precautions
Warning!
All safety functions shall be tested before starting up the system.
•
Note that the detection distance can be affected when Eden is mounted close to metal.
•
The Eden can be mounted on metal but must not be surrounded.
•
The S
distance must be used in calculations (e.g. for minimum safety distance).
ar
•
Control that Adam and Eva are aligned in parallel to each other.
Minimum safety distance
When using interlocking guards without guard locking to safeguard a hazard zone, the minimum
allowed safety distance between the guarded opening and the hazardous machine must be
calculated. To ensure that the hazardous machine motion will be stopped before it can be reached,
the minimum safety distance is calculated according to EN ISO 13855: 2010 ("Positioning of
safeguards with respect to the approach speeds of parts of the human body").
The minimum safety distance is calculated according to the formula:
S = (K x T) + C
Where
S = minimum safety distance (mm)
K = approach speed of a human body; 1600 mm/s
T = the total time from opening of the guard until the hazardous machine movement has
stopped, i.e. including control system reaction times and other delays (s)
C = a safety distance taken from Table 4 or Table 5 of EN ISO 13857:2008, if it is possible to
push fingers or a hand through the opening towards the hazard before a stop signal is
generated.
Note!
In some cases, T might be reduced by the opening time of the guard until
the opening size permits access of the relevant parts of the body. Refer to
EN ISO 13855:2010 for further details and EN ISO 13857:2008 for specified
values.
2TLC172272M0201
Rev.H
17
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