Sinumerik Safety Integrated - Siemens SIMODRIVE 611 Planning Manual

9 Important Circuit Information

9.14 SINUMERIK Safety Integrated

9.14
General
information
Direct connection
of two–channel
peripheral signals
Professionally
9
master extreme
situations
Safety concept
with a high degree
of effectivity
Safety functions
redundantly
integrated
Innovative safety
technology – on
the way to a new
standard
9-302
SINUMERIK Safety Integrated
"SINUMERIK Safety Integrated" offers type–tested safety functions which can
be used to implement highly effective personnel and machinery protection in–
line with that required in practice.
All of the safety functions fulfill the requirements of safety Category 3 according
to EN 954–1 and are a fixed component of the basic system.
Neither additional sensors nor evaluation devices are required, i.e. less installa-
tion costs at the machine and a favorably–priced cabinet
The following are included in the scope of supply, e.g.:
S
Safe monitoring of velocity and standstill
S
Safe traversing range limiting and range identification
With the additional, integrated functions in the safety package "Safety Integra-
ted" for SINUMERIK 840D/611D, for the first time, it is possible to directly con-
nect two–channel peripheral (I/O signals). For example, an Emergency Stop
pushbutton or light barriers. The logical interlocking and response is realized
internally using safety–related technology.
All safety–relevant faults in the system result in the hazardous motion being
safely stopped or the energy being disconnected to the motor contactlessly. The
drives are always stopped, optimally adapted to the operating status of the ma-
chine. This means, for example, in the setting–up mode, with the protective door
open, motion can be stopped as quickly as possible and in the automatic mode
with closed protective door, the machine can be shut down path–related.
This means: A high degree of personnel protection in the setting–up mode and
additional protection for the machine, tool and workpiece in the automatic mode.
These safety functions offer intelligent system access directly down to the elec-
tric drives and measuring systems, to a level which was previously unknown.
Reliable function, fast response, and a wide degree of acceptance make these
certified safety concepts extremely effective.
A two–channel, diverse system structure is formed using the multi–processor
structure. The safety functions are redundantly integrated into the NC, drive and
internal PLC. A special feature of this safety concept is that already with a
measuring system – the standard motor measuring system – safety category
3 according to EN 954–1 (SIL2 in accordance with IEC 61508) can be imple-
mented. A second measuring encoder is not required, however, can be integra-
ted as additional, direct measuring system (e.g. linear scale).
It has been clearly shown, that this innovative safety technology can be used to
implement new machine operator concepts in–line with those required in prac-
tice. This results in a new standard for machines which enhances their safety
and flexibility in use and also increases the plant or system availability.
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
05.01