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Definitions
WARNING
A hazard with a medium risk of injury if not avoided
ESD handling
The ESD Susceptibility Symbol consists of a triangle, a reaching hand, and a slash
through the reaching hand. The triangle means 'Caution' and the slash through the
reaching hand means 'Don't touch'.
Mechanical safe position
The maximum distance the scale might move from its installed position, for example
if the fixings work loose.
Evaluation unit
External item of equipment in which the output signal of the encoder is evaluated,
e.g. machine controller or safety relay.
System manufacturer
Personnel with responsibility for selecting the encoder and verifying its capability
is appropriate for the safety related application.
System installer
Personnel with responsibility for fitting the encoder in the specific application.
Information for use
WARNING
Not to be used in environments where there is an explosive atmosphere
WARNING
Not to be used by medical devices
The RESOLUTE FS with BiSS Safety system is designed to be used as part of a safety-related control system as specified
by the system manufacturer. It is the responsibility of the system manufacturer to set the evaluation unit to implement the
appropriate actions when the RESOLUTE FS with BiSS Safety system reports an error. The decision to use this system for
the intended purpose is the responsibility of the system manufacturer. The RESOLUTE FS with BiSS Safety system is
certified to the SIL and PL levels as shown in the 'Functional Safety data declaration', however the system manufacturer
must conduct their own assessment of the full system to determine its safety capability.
Correct use includes:
Operating the RESOLUTE FS with BiSS Safety system within the limits defined in this document.
Installing the system as described in this document.
Maintaining the system as described in this document.
System components:
The RESOLUTE FS with BiSS Safety system comprises the following parts:
RESOLUTE FS with BiSS Safety readhead.
RESA 'A' section or 'B' section ring.
REXA ring.
RTLA30-S tape scale with end covers.
RTLA30 tape scale and FASTRACK carrier with end covers.
RSLA and RELA linear scale – adhesive mount only.
NOTES:
Rings retained by interference fit only (unbolted) are not approved for use with the RESOLUTE FS with
BiSS Safety encoder system.
Only RTLA30-S scale using end covers is functionally safe.
Only RTLA30/FASTRACK using end covers is functionally safe.
Clip mounting RELA/RSLA linear scale is not approved for use with the RESOLUTE FS with BiSS Safety encoder system.
If the original termination supplied with the RESOLUTE FS with BiSS Safety system is altered or an extension cable
used, then it is the responsibility of the system manufacturer to make sure the system is compliant with
IEC 61800-5-2 Annex E – Electromagnetic immunity requirement for safety related systems.
RESOLUTE FS with BiSS
Safety encoder system installation guide and safety manual
®
Functional Safety data declaration
Product identification
RESOLUTE FS (Functional Safety) with BiSS Safety
IEC 61508 safety data
Safety integrity level
2
l
Random hardware
5.78 × 10
S
failures (per hour)
l
8.78 ×10
D
l
7.9 × 10
DD
l
8.78 × 10
DU
PFD
Not available due to continuous demand mode
avg
PFH (per hour)
8.78 × 10
Architectural
Type
B
constraints
HFT
0
SFF
94%
Hardware safety
Route 1H
integrity compliance
Systematic safety
Route 1S
integrity compliance
Systematic capability
SC 2
Demand mode
Continuous
ISO 13849 safety data
MTTF
(years)
130
D
Diagnostic coverage
Medium (90%)
Category
3
Performance level
d
Lifetime/replacement limits
20
Original instructions
−7
−7
−7
−8
−8
2
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