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2.2
Intended use
8021265/1OPE/2024-10-09 | SICK
Subject to change without notice
Work safety regulations and safety regulations
•
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 DSL
®
Safety".
The motor feedback system is ideal for the dynamic and precise operation of servo-con‐
trol circuits due to its equipment.
The overall system, consisting of encoder, evaluation system, servo inverter, and motor,
forms a control circuit.
The safety-oriented use of safe motor feedback systems with a HIPERFACE DSL
interface concerns application in combination with servo systems that work with three-
phase AC synchronous motors and alternatively AC asynchronous motors.
The following information can be derived from the digital position signals of a motor
feedback system connected directly to a motor shaft:
•
(Rotational) speed information and commuting information in AC synchronous
motors
(Rotational) speed information in asynchronous 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 SIL
The safety integrity level of the encoder is SIL2. The systematic capability of the
encoder is SC 3. Only when applied in redundant architecture, the encoder can be
utilized for SIL3 applications, otherwise, i.e. when used standalone, it shall be utilized
maximum for SIL2 applications.
It fulfills the requirements of the Machinery Directive 2006/42/EC and provides sup‐
port for the drive system in ensuring:
The safety functions, based on the safe absolute position information or the incre‐
•
mental position information of the motor feedback system. The safety functions
apply only to one motor revolution (singleturn).
•
In the case of safety functions that are based on the reliable multiturn absolute
position, the motor feedback system only supplies one channel without safety-
related diagnostics upon being switched on. A second channel must be imple‐
mented by the user using other measures. This second channel can be provided
by the user by saving the position of the motor feedback system before switching
it off and comparing it to the starting position of the motor feedback system when
switching it on the next time. The multiturn absolute position can only be used for
safety-related purposes if the values match. Otherwise, a reference run must be
carried out by the user. If there is no second channel for the multiturn absolute
position, a reference run to confirm the absolute position must be carried out each
time the motor feedback system is switched on.
The 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 motor feedback system.
OPERATING INSTRUCTIONS
3 in accordance with EN 62061.
CL
O P E R A T I N G I N S T R U C T I O N S | EES37-2...
®
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