English
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About this Documentation
This documentation contains important information on the safe and appropriate assembly and
commissioning of the product.
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Read this documentation completely, especially chapter “2 Notes on safety” before working
with the product.
Additional documents
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SISTEMA libraries, see www.aventics.com
Furthermore, observe general, statutory and other binding rules of the European and national
laws, as well as the valid regulations in your country to protect the environment and avoid
accidents.
Documentation validity
This documentation applies to the following safety valves:
These valves are referred to as safety valves in the following.
Required documentation
The safety valve is a component part of a larger system.
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Also observe the instructions for the other system components and manufacturer's system
documentation.
Presentation of information
Warnings
In this documentation, there are warnings before the steps whenever there is a risk of personal
injury or damage to equipment. The measures described to avoid these hazards must be
followed. Safety instructions are set out as follows:
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Safety sign:
draws attention to the risk
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Signal word:
identifies the degree of hazard
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Hazard type and source:
identifies the hazard type and source
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Consequences:
describes what occurs when the safety instructions are not complied with
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Precautions:
states how the hazard can be avoided
Meaning of the signal words
Symbols
The following symbol indicates information that is not relevant for safety but that helps in
comprehending the documentation.
Series
Air
connections
Connection
Type
Part number
Designation
SV01
G1/8
BSPP
R412027208 SV01-3/2NC-SR-24DC-I-SE-PD-G018-FC-PNP
SV01
G1/8
NPT
R412027209 SV01-3/2NC-SR-24DC-I-SE-PD-N018-FC-PNP
SV01
G1/8
BSPP
R412027210 SV01-5/2XX-SR-24DC-I-SC-PD-G018-FC-PNP
SV01
G1/8
NPT
R412027211 SV01-5/2XX-SR-24DC-I-SC-PD-N018-FC-PNP
SV03
G1/4
BSPP
R412027212 SV03-3/2NC-SR-24DC-I-SE-PD-G014-FC-PNP
SV03
G1/4
NPT
R412027213 SV03-3/2NC-SR-24DC-I-SE-PD-N014-FC-PNP
SV03
G1/4
BSPP
R412027214 SV03-5/2XX-SR-24DC-I-SC-PD-G014-FC-PNP
SV03
G1/4
NPT
R412027215 SV03-5/2XX-SR-24DC-I-SC-PD-N014-FC-PNP
SV03
G1/4
BSPP
R412027220 SV03-AS2-3/2NC-SR-24DC-I-SE-PD-G014-FC
SV05
G1/2
BSPP
R412027216 SV05-3/2NC-SR-24DC-I-SE-PD-G012-FC-PNP
SV05
G1/2
NPT
R412027217 SV05-3/2NC-SR-24DC-I-SE-PD-N012-FC-PNP
SV05
G1/2
BSPP
R412027218 SV05-5/2XX-SR-24DC-I-SC-PD-G012-FC-PNP
SV05
G1/2
NPT
R412027219 SV05-5/2XX-SR-24DC-I-SC-PD-N012-FC-PNP
SIGNAL WORD
Hazard type and source
Consequences of non-observance
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Measures to avoid these hazards
Hazard classes according to ANSI Z 535.6-2006
DANGER
Indicates a dangerous situation which, if not avoided, will certainly result in death or serious
injury.
WARNING
Indicates a dangerous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a dangerous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates that damage may be inflicted on the product or the environment.
Abbreviations
This documentation uses the following abbreviations:
2
Notes on safety
About this chapter
The product has been manufactured according to the accepted rules of current technology. Even
so, there is risk of injury and damage to equipment if the following chapter and warnings in this
documentation are not followed.
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Read these instructions completely before working with the product.
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Keep this documentation in a location where it is accessible to all users at all times.
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Always include the documentation when you pass the product on to third parties.
Intended use
The SV01/SV03/SV05 series of double valves are safety components designed and
manufactured in accordance with Machinery Directive 2006/42/EC and bear the CE mark. The
safety function of the safety valve is to shut off supply of pneumatic energy and to exhaust any
pneumatic energy from downstream of the valve. The safety function of the 5/2 safety valve is to
at least stop the actuator (one channel of the double valve stuck in a worst case position)
respectively to return the actuator to its home “safe” position when the valve operates fault free.
The SV01/SV03/SV05 series of double valves are redundant 3/2 or 5/2 valves that are designed
to meet the aforementioned safety functions. Typically, these valves are implemented to meet
the Category 4 and/or Performance Level e requirements of a machine’s (or system’s) safety
circuit as determined by a risk assessment of the hazards and tasks required of employees that
interact with the machine/system.
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See chapter 12 “Technical Data” for the standards and test values complied with and adhered
to by the product. See the declaration of conformity for productrelevant EU directives.
The 3/2 safety valve is designed to supply air to a zone or entire machine/system until signaled
to shut off and exhaust residual downstream pneumatic energy from the machine. Thus,
reducing the hazards associated with the presence of residual energy during employee access
and/or minor servicing. The safety function of the 3/2 safety valve is to shut off supply of
pneumatic energy and to exhaust any pneumatic energy from downstream of the valve.
NOTE:
The safety valve cannot exhaust pneumatic energy from downstream of obstructions such
as check valves and closed center function valves.
The 5/2 safety valve is designed to control the direction of air flow into and out of a double-acting
cylinder or other pneumatic actuator in order to drive the cylinder forward or backward to suit
the requirements of the machine operation.
The safety valves are designed for external monitoring for safe, redundant operation of the
valves. The safety valves are constructed of redundant, 3/2 or 5/2 spool type valves, and have an
overall function of a single solenoid pilot-operated, spring return valve. Each single valve in the
safety valve is equipped with a PNP proximity sensor. Monitoring both of these sensors on each
actuation and de-actuation of the safety valve provides a diagnostic coverage up to 99%.
Monitoring of these sensors is to be done by an external monitoring system.
Safety Function According to ISO 13849
The safety valves are designed in accordance with the requirements listed in ISO 13849-1 and -2.
The safety function of the 3/2 safety valve is not only to supply compressed air (pneumatic
energy) to the machine/system when the two valve elements are actuated simultaneously, but
also to shut off the supply and to exhaust any downstream compressed air when both valves are
switched off. A fault in the system where only one valve actuates when switching on or only one
de-actuates when switching off prevents air from being supplied downstream and
simultaneously exhausts any air that is already downstream. Monitoring of the two proximity
sensors by the user’s external safety monitoring system makes it possible to detect these fault
situations and to shut off and prevent further electrical energization of the solenoids.
The safety function of the 5/2 safety valve is to drive a double-acting cylinder or other pneumatic
actuator forward when the two valve elements are actuated simultaneously, and to drive the
cylinder or other actuator back to its home “safe” position when both valve elements are
switched off. A fault in the system where only one valve actuates when switching on or only one
de-actuates when switching off causes the safety valve to supply air to port 2 of the valve and to
simultaneously open port 4 to exhaust (port 5). This, in turn, causes the cylinder or other actuator
to return to its home “safe” position. Monitoring of the two proximity sensors by the user’s
external safety monitoring system makes it possible to detect these fault situations and to shut
off and prevent further electrical energization of the solenoids.
The control outputs of the safety system must be designed and constructed to meet the Category
and/or Performance Level requirements of the safety system, as determined by the risk
assessment of the machine. Normally, the outputs to the solenoids is a dual-channel output from
a safety relay or safety PLC.
Symbol
Meaning
If this information is disregarded, the product cannot be used or operated
optimally.
Abbreviation
Meaning
CCF
Common Cause Failure
MTTF
d
Mean time to dangerous failure
PL
Performance Level
PL
r
Required Performance Level
PLC
Programmable Logical Controller
AVENTICS
| SV01/SV03/SV05 | R412027221-BAL-001-AA | English
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