Parker HAS Series - Safety Specification

Parker Hannifin Corporation
Cylinder Division
Des Plaines, Illinois
www.parker.com/cylinder
Hydraulic and Electrohydraulic Actuators
HAS Series Analog Drives Manual
Catalog HY08-4005-M3
54
WARNING: This product can expose you to chemicals including Lead and Lead Compounds which are known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
PROP 65 WARNING
Safe Torque Off
WWAARRNNIINNGG:: This product can expose you to chemicals including LLeeaadd aanndd LLeeaadd CCoommppoouunnddss which are known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
PPRROOPP 6655 WWAARRNNIINNGG
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Cylinder Division
Des Plaines, Illinois
51
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cylinder
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STO aligns to the following aspects of this standard:
• Safety Integrity Level 3
Probability of dangerous random hardware failures per hour (PFH) must be ≤ 10
-7
Subsystems type A according to EN61508-2:2001 para 7.4.3.1.2
Hardware Fault Tolerance (HFT) = 1
Safe Failure Fraction (SFF) must be ≥ 90%
As assessed to EN ISO13849-1 and EN61800-5-2 and certified by BGIA (a German
trade association for industrial safety) the 890 frames B to F have the following
related safety values:-
Criterion Requirement
Value achieved
SIL3
For type A subsystems, HFT = 1:
SFF ≥ 60%
98%
SIL3
10
-7
≥ PFH ≥ 10
-8
1 x 10-9
PLe
Category 3; PFH ≤ 4,29 x 10
-8
1 x 10-9
PLe
30 years ≤ MTTFd < 100 years
100 years
1
PLe
DC = medium
Medium
Mission Time 20 years
20 years
Note: all values quoted in this table are valid only when the two STO user inputs are driven
independently. This is as required by EN ISO 13849-1 category 3. See the Alignment to European
Standards section in this chapter for the required architecture which must be used throughout the
machine design relevant to the drive under consideration.
In addition to the mandatory requirements of EN61800, the STO functionality has been
subjected to testing for immunity at higher levels. In particular it has been tested for radiated
immunity up to 3GHz which includes frequencies used by mobile telephones and walkie-talkies.
1
EN ISO13849 limits MTTFd to 100 years.
EN61800-5-2:2007 and EN61508
Safety Specification
EMC Specification