Delivery Specification; Intended Use; Application; Function - Bernstein Csms-R Betriebs- Und Montageanleitung

Delivery specification

– Safety sensor and actuator installation and operating
instructions according to table "Identification by type
designation" on page 22
– Installation and Operating Instructions

Intended use

The BERNSTEIN contactless safety sensor, (CSMS), ensures the
monitoring of pivoting or sliding protective devices such as
hatches, doors and protective guards. Activation commands
for hazardous conditions are only effective when the safety
equipment is in protected status.
During the planning and installation of separate
protective devices, the following applicable standards
have to be considered:
ISO13857 Safety of machinery –
Safety distances to prevent danger zones being reached by
the upper and lower limbs
EN 349 Safety of machinery – Minimum gaps to avoid
crushing of parts of the human body
EN 953 Safety of machinery – Movable safety guard
ISO 13849-1, DIN EN ISO 13849-2 Safety of machinery –
Safety related parts of control systems
ISO 13855 : 2008-09 Safety of machinery – The positioning
of protective equipment in respect of approach speeds of
parts of the human body
ISO 14121-1 Safety of machinery, risk assessment
EN 1088 (ISO 14119) Safety of machinery – Interlocking
devices associated with guards
Before installation of the CSMS, please ensure that you are
informed about the standards and regulations applying to
your intended use. The safety sensor can only be used in
combination with the actuator provided by BERNSTEIN.

Application

The electronical safety sensor is suitable for use in safety
circuits and monitors the position of the protective devices
by means of a coded actuator. Depending on the variant, the
electronic outputs must be connected to a safety evaluation
unit or directly to the contactors. In the latter, the feedback
circuits of the contactors are monitored by the CSMS and
a start button can be connected. The CSMS can be used
individually or can be switched in series.
The complete safety chain must be laid down by the
operator following a comprehensive evaluation, taking all
relevant standards into account. At the same time, the level
of safety required for this type of operation must also be
taken into account.
Safety functions:
– safety switch off of the safety outputs when the safety
guard is opened
– permanent safety switch off as long as the safety guard is
open
The diagnostic output is used to deliver status information
of the CSMS and of the CSMS system. This output should not
be used in a safety-related manner.

Function

A CSMS unit (figure 1) consists of an actuator and a CSMS
sensor.
The CSMS is composed of the functional components "safe
detection of the actuator" and "safe evaluating logic".
Every actuator of the CSMS unit has a code for unambigu-
ous and error-free identification. Two different options of
coding level are available. If a high-level coding (unicode)
is required, one specific actuator is assigned to each sensor.
In such a case, the sensor cannot be actuated with another
actuator of the same article number. With a teach adapter,
the user can assign a substitute actuator to the sensor. When
low-level coding is required, every actuator that is intended
for use in this coding level can be recognized by the sensor.
ISO 14119 determines which coding level is required.
The redundant inputs and outputs either serve to switch the
CSMS units in series, or to connect other safety components
with OSSD outputs, such as safety light curtains (allocation
for redundant input) or contactors and safety controllers (al-
location of redundant output). See pages 27–30 for connec-
tion examples. A system can consist of 1 to 32 CSMS units.
The installation and operating instructions describe
two different CSMS versions:
● CSMS for applications for connecting to a safety
evaluation unit (version R)
● CSMS for applications which are configurable as a
system, with manual and automatic start without
the need for an additional safety evaluation unit
(version RRS)
You will find a version and application overview
on page 26.
CSMS-R/RRS: 0800000756, 0235-14 / Status: 2 / Issue date: 2014-08-05
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