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O P E R A T I N G I N S T R U C T I O N S
Safe encoder
1
About this document
This document is an original document.
Please read these operating instructions carefully before using the DFS60S Pro
safe encoder or mounting it, putting it into operation, or servicing it.
1.1 Purpose of this document
These operating instructions provide technical personnel of the machine manu‐
facturer or the machine operator with instructions regarding the safe assembly,
electrical installation, commissioning, operation and maintenance of the DFS60S
Pro.
Furthermore, planning and using safe encoders such as the DFS60S Pro also
requires technical skills that are not covered in this document.
The official and legal regulations for operating the DFS60S Pro must always be
complied with.
1.2 Symbols and document conventions
WARNING
A warning indicates a specific or potential hazard. This is intended to protect
you against accidents.
Carefully read and follow the warnings.
Instructions requiring specific action are indicated by an arrow. Carefully
b
read and follow the instructions for action.
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Safety information
This chapter concerns your own safety and the safety of the system operator.
Please read this chapter carefully before you begin working with the DFS60S
Pro on the machine or system in which the safe encoder is used.
2.1 General safety notes
WARNING
Follow the safety notes and protective measures.
Observe the following to ensure the safe use of the DFS60S Pro as intended.
The national and international legal specifications apply to the installation and
use of the DFS60S Pro, to its commissioning, and to technical inspections
repeated at regular intervals, in particular:
•
The Machinery Directive 2006/42/EC
•
The Work Equipment Directive 2009/104/EC
•
The work safety regulations and safety regulations
•
Any other relevant safety regulations
The manufacturer and operator of the machine on which the DFS60S Pro is used
are responsible for coordinating and complying with all applicable safety specifica‐
tions and regulations, in cooperation with the relevant authorities.
These operating instructions must be made available to the operator of the
machine on which the DFS60S Pro safe encoder is used. The machine operator
must be instructed by qualified safety personnel and read the operating instruc‐
tions.
2.2 Intended use
The DFS60S Pro can be used in safety applications up to category 3 in accor‐
dance with EN ISO 13 849, up to SIL2 in accordance with IEC 61 508, up to
SILCL2 in accordance with EN 62 061, or up to PL d in accordance with
EN ISO 13 849.
The DFS60S Pro supports safety functions based on the speed and direction of
rotation information.
The encoder is not able to create a safe state independently.
The speed, direction of rotation, downtime, and faults that could result in a hazard
must be detected by a higher-level evaluation system. The requirements for the
evaluation system are described in
The DFS60S Pro must only be used within the limits of the prescribed and speci‐
fied technical data and operating conditions. The requirements and ambient con‐
ditions defined in the technical data must be observed and maintained to allow
the DFS60S Pro to meet its warranted function.
If used in any other way or if alterations are made to the device – including in the
context of mounting and installation – this will render void any warranty claims
directed to SICK STEGMANN GmbH.
2.3 Improper use
The DFS60S Pro does not support any safety-related operating modes in the con‐
text of an absolute position.
The DFS60S Pro emits a zero pulse as a reference. This signal must not be used
for safety-related operating modes.
The DFS60S Pro is not suitable for the following applications, among others:
•
Underwater
•
In explosion-hazardous areas
•
In areas accessible to the public
2.4 Requirements for the qualification of personnel
The DFS60S Pro must only be configured, installed, connected, commissioned
and serviced by qualified safety personnel.
Project planning
8016866/12N8/2019-01-31/de, en, es, fr, it
chapter 4.1
and
chapter
4.2.
Where project planning is concerned, a person is considered competent when
e n
he/she has expertise and experience in the selection and use of safe encoders
on machines and is familiar with the relevant technical rules and national work
safety regulations.
Mechanical mounting and commissioning
Where mechanical mounting and commissioning are concerned, a person is con‐
sidered competent when he/she has expertise and experience in the field.
Electrical installation
Where electrical installation and commissioning are concerned, a person is con‐
sidered competent when he/she has expertise and experience in the field.
3
Product description
The DFS60S Pro is a high-resolution incremental encoder with a diameter of
60 mm.
Encoder signals are transmitted to the evaluation system using analog signals in
the form of sine/cosine-wave voltages.
If a suitable evaluation unit is used, the DFS60S Pro can then be used for safety-
related operating modes that are associated with the speed and direction of rota‐
tion. It can then fulfill safety functions in accordance with IEC 61 800-5-2.
In accordance with IEC 61 800-5-2, the mechanical interface has been dimen‐
sioned in such a way that it is possible to assume errors are ruled out based on
its over-dimensioning.
The DFS60S Pro is subject to limited bearing service life (see technical data).
After its bearing service life is exceeded, bearing wear or fatigue could lead to
bearing failure. To prevent this, the DFS60S Pro must be taken out of operation
no later than when the bearing service life has been reached. The bearing service
life is also influenced by the specific application, in particular due to operating
modes with low speeds, reversing operation and mechanical vibrations. Current
should be prevented from passing through the ball bearing (e.g., due to injected
currents).
External plausibilization of the sensor information can be helpful for increasing
diagnostic coverage of the safe sensor regarding unexpected bearing failure (e.g.,
due to difficult operating conditions, borderline load, and the like).
WARNING
Safety note
The DFS60S Pro must not be used for safety applications beyond its mission
time (see technical data). The mission time can be limited by the bearing ser‐
vice life specific to the application.
DFS60S Pro | SICK
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