Appendix
A.3 Standards, directives and laws
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
330
System Manual, 06/2016, A2B00096162-AN
A.3.3
Communications
The EIA 485 standard applies to physical data transfer (RS 485 interface).
USS protocol specification, Edition 09.94 by Walter Möller-Nehring, Siemens AG,
ASI 1 D SP, Erlangen and Wolfgang Bohrer, Siemens AG, ASI 1 D SP, Erlangen
PROFIBUS was defined in DIN 19245 in 1991/1993, changed to EN 50170 in 1996 and has
been defined in IEC 61158/IEC 61784 since 1999.
PROFINET DIN EN 61158 and IEC 61784-2
A.3.4
Application-specific standards
Power-operated guards
EN 953:1997+A1:2009 Power-operated guards, type B standard
Requirements for guards are described in detail in the product standard DIN EN 953.
Particular attention must be paid to Section "5.2.5.2 Operating forces".
Excerpt from EN 953:1997+A1:2009, Section 5.2.5.2:
"Where guards are power operated they shall not be capable of causing injury (e.g. from
contact pressure, force, speed, sharp edges). Where a guard is fitted with a protective
device which automatically initiates reopening of the guard, the force to prevent the guard
closing shall not exceed 150 N. The kinetic energy of the guard shall not exceed 10 J. Where
no such protective device is fitted these values shall be reduced to 75 N and 4 J
respectively."
Machine tools – Safety – Turning machines
EN ISO 23125:2010+A1:2012 Machine tools safety – Turning machines, type C standard
Section 5.2.2.2 b) "For power-operated guards"
Excerpt from EN ISO 23125:2010+A1:2012, Section 5.2.2.2 b):
"3) the force to prevent the guard from closing shall not exceed 75 N and the kinetic energy
of the guard shall not exceed 4 J. When the guard is fitted with a protective device which
automatically initiates reopening of the guard on actuation, this may be a maximum of 150 N
and the kinetic energy a maximum of 10 J;"