2TLC010088M0201
Rev.A
10
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 (“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 for further details and EN
ISO 13857 for specified values.
Summary of Contents for 2TLA050007R0602
Page 15: ...2TLC010088M0201 Rev A 15 Dimensions MKey9RF MKey8RF ...
Page 16: ...2TLC010088M0201 Rev A 16 MKey8ZRF MKey10RF MKey10RFER ...
Page 18: ...2TLC010088M0201 Rev A 18 MKey10RF ER Die cast handle same for Left and Right versions ...
Page 20: ...2TLC010088M0201 Rev A 20 Slilde bolt MKey10RF ER same for Left and Right versions ...
Page 25: ...2TLC010088M0201 Rev A 25 9 Declaration of conformity ...
Page 26: ...2TLC010088M0201 Rev A 26 ...
