Printed in the Federal Republic of Germany
TR-Electronic GmbH 2016, All Rights Reserved
10/23/2019
TR - ECE - BA - GB - 0120 - 13
Page 9 of 40
1.3 General functional description
The rotary measuring system is a safe and incremental position measuring system.
The measuring system has been designed so that it can be used in systems which
require the following safety functions according to EN 61800-5-2:
● Safe Direction
(SDI)
● Safe Stop 1
(SS1)
● Safe Stop 2
(SS2)
● Safe Operating Stop
(SOS)
● Safely Limited Speed
(SLS)
● Safe Speed Range
(SSR)
● Safe Speed Monitor
(SSM)
● Safely-Limited Acceleration
(SLA)
● Safe Acceleration Range
(SAR)
● Safely-Limited Position
(SLP)
● Safely-Limited Increment
(SLI)
● Safe Cam
(SCA)
The measuring system as a sensor is always part of a safety chain.
The following shaft designs can be used for the mechanical coupling:
● Solid shaft
● Blind shaft
● Hollow shaft
Depending on the safety functions safety-related differences arise:
● SIL3/PLe/Cat.3, in conjunction with velocity oriented safety functions
● SIL2/PLd/Cat.3, in conjunction with positioning oriented safety functions
see chapter “Safety” -> “Functional safety” on page 19.
