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OPERATING INSTRUCTIONS
2.2
Intended use
en
24
O P E R A T I N G I N S T R U C T I O N S | STL70S
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Accident prevention regulations and safety regulations
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Any other relevant safety regulations
The manufacturer and operator of the machine on which the safe motor feedback
system is used are responsible for coordinating and complying with all applicable safety
specifications and regulations, in cooperation with the relevant authorities.
The manufacturer of the drive system connected must have complied with the safety
requirements for the drive system design described in the implementation manual,
"HIPERFACE
Safety" - 8014120.
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The safe motor feedback system is ideal for the dynamic and precise operation of
servo-control circuits due to its equipment.
The overall system, consisting of read head, measuring elements, evaluation system,
servo inverter, and motor, forms a control circuit.
The safety-oriented use of safe motor feedback systems with a HIPERFACE
concerns application in combination with linear motors.
The following information can be derived from the digital position signals of a safe
motor feedback system connected directly to a motor shaft:
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(Rotational) speed information and commuting information in linear motors.
The safe motor feedback system can be used in conjunction with a drive system in
accordance with IEC 61800-5-2, in safety applications up to category 3 and PL d in
accordance with EN ISO 13849 or max. SIL2 in accordance with EN 62061.
It fulfills the requirements of the Machinery Directive 2006/42/EC and provides sup‐
port for the drive system in ensuring:
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The safety functions, based on the safe position or speed information of the safe
motor feedback system.
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In the case of safety functions that are based on the safe absolute position,
the safe motor feedback system only supplies one channel without safety-related
diagnostics upon being switched on. A second channel must be implemented by
the user using other measures. This second channel can be provided by the user
by saving the position of the safe motor feedback system before switching it off
and comparing it to the starting position of the safe motor feedback system when
switching it on the next time. Use for absolute position safety-related purposes
is possible only if the values match. Otherwise, a reference run must be carried
out by the user. Without a second channel, a reference run must be carried out
each time the safe motor feedback system is switched on to confirm the absolute
position.
The safe motor feedback system is not able to create a safe state for the drive system
independently. The drive system has to create the safe state as a response to an error
displayed by the safe motor feedback system.
The sensor signals are transferred to the evaluation system via a HIPERFACE
In combination with a drive system of category 3 (EN ISO 13849), max. SIL2 (EN
62061), or PL d (EN ISO 13849), the safe motor feedback system is suitable for safety
applications. If only the analog incremental signal outputs (sine/cosine) are used for
speed-based safety functions of the drive, the safe motor feedback system meets the
requirements in EN 61800-5-2.
The safe motor feedback system does not support any safety-related operating modes
in the context of an absolute position.
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8028430/2023-04-19 | SICK
Subject to change without notice
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