Functional Safety - Magnescale SR27A-AZ Series Instruction Manual

1-5. Functional Safety

Th is product is a functional safety magnescale which is compliant with EN 61800-5-2:2007 / IEC
61508:2010 / IEC 62061:2005 SC3 SIL 2 and EN ISO 13849-1:2008 Cat.3 PL d.
Behavior of the product when anomalies arise
Dangerous fault : Th e position information has an error
Safe state : Th e product shuts down position information communication with a
(*1) : Th e error position information described here is a threshold value which is considered as a dangerous
fault value in terms of functional safety and is not the accuracy of the product. As for the accuracy
of the product, see Section 7. "Specifications."
Th e product is maintenance-free and it is not necessary to replace the parts periodically.
Functional safety specifi cations
Item
Operating temperature : +50°C
Probability of
Operating temperature : +25°C
dangerous failure
Operating temperature : 0°C
MTTFd
DCavg
Hardware fault tolerance
Product type
SIL
Normative references
Standard
IEC 61508:2010
IEC 62061:2005
EN ISO 13849-1:2008
IEC 60664-1:2007
EN 61800-5-2:2007
IEC 62061:2005
IEC 60068-2-1, IEC 60068-2-2,
IEC 60068-2-6, IEC 60068-2-14,
IEC 60068-2-27, IEC 60068-2-30,
IEC 60068-2-32
IEC 61000-6-4:2006 +A1:2010
CISPR 16-1-1:2010, clause 4
CISPR 16-1-4:2010, clause 4.4 and 5
CISPR 16-2-3:2010, clause 7.2
IEC61000-6-2:2005
IEC 61326-3-1:2008
IEC 61000-4-2:2008
IEC61000-4-3:2006 +A1:2007 +A2:2010
IEC 61000-4-4:2004 +A1:2010
IEC 61000-4-6:2008
For details about functional safety, contact our functional safety department.
45 Suzukawa, Isehara-shi, Kanagawa 259-1146, Japan
TEL: +81 (0)463 92 1011
SR27A-AZ Series, CH22 Series
: Th e product shift s to a safe state within 5 ms when
dangerous faults are detected.
controller and shift s to a safe state.
Mode of operation
High demand / continuous mode
PFH = 41 × 10
PFH = 13 × 10
PFH = 5 × 10
100 years (High)
64.01% (Low)
1
Type B
2
FAX: +81 (0)463 92 1012
(*1) of more than ±1 mm.
-9
(1/h)
-9 (1/h)
-9
(1/h)
Applied specifi cation
Functional safety
Functional safety
Functional safety
Clearances (between PWB (Printed wiring board) patterns)
specifi cation
Requirements related to Table D.16 Motion and position
feedback sensors
Table D.1 Failure Mode
Environmental Tests
Emission
Immunity
3
(E)