AVENTICS SV01 Directional Safety Valve Instruction Manual

June 4, 2024
AVENTICS

Operating instructions
Safety valve
SV01/SV03/SV05
AVENTICS SV01 Directional Safety Valve

SV01 Directional Safety Valve

Figures: View varies according to the series.

AVENTICS SV01 Directional Safety Valve - fig

Pneumatics wiring diagram
F: Filter
PR: Pressure Regulator
PG: Pressure Gauge
ORF: Oil Vapor Removal Filter
LV: Lockout Valve
SV: Safety Valve
FCV: Flow Control Valve
SPV: 5/2 Solenoid Pilot Valve

AVENTICS SV01 Directional Safety Valve - fig1

Product Overview

  1. 1 3/2-directional safety valve
  2.  5/2-directional safety valve
  3.  3/2-directional safety valve series SV03-AS2 to mount on series AS2

1: Company name
2: Company address
3: Material number
4: Type designation
5: Serial number
6: Production date
7: Operating pressure| 8: Voltage; Power
9: Responsible plant
10: Country of manufactur11: Temperature range
12: CE mark
13: QR-code
14: Symbol
---|---

AVENTICS SV01 Directional Safety Valve - fig3

Electrical connections

  1. Solenoid connector according to EN 175301-803, Form C
  2. M8 connector for the position sensor

About this Documentation

This document contains important information on the safe and appropriate assembly and commissioning of the product.
▶ Read this documentation completely, especially chapter “2 Notes on safety” before working with the product.
Additional documents
W 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:

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

These valves are referred to as safety valves in the following.
Required Documentation
The safety valve is a component part of a larger system.
▶ Also observe the instructions for the other system components and the 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:

SIGNAL WORD
Hazard type and source
Consequences of non-observance
▶ Measures to avoid these hazards

  • Safety sign: draws attention to the risk
  • Signal word: identifies the degree of hazard
  • Hazard type and source: identifies the hazard type and source
  • Consequences: describes what occurs when the safety instructions are not complied with
  • Precautions: states how the hazard can be avoided

Meaning of the signal words
Hazard classes according to ANSI Z 535.6-2006

**DANGER**

Indicates a dangerous situation that, if not avoided, will certainly result in death or serious injury.
**   WARNING
Indicates a dangerous situation that, if not avoided, could result in death or serious injury.
****
CAUTION
Indicates a dangerous situation that, if not avoided, could result in minor or moderate injury.
NOTICE**
Indicates that damage may be inflicted on the product or the environment.

Symbols
The following symbol indicates information that is not relevant for safety but that helps in comprehending the documentation.

Symbol Meaning
If this information is disregarded, the product cannot be used or operated

optimally.

Abbreviations
This documentation uses the following abbreviations:

Abbreviation Meaning
CCF Common Cause Failure
MTTFd Mean time to dangerous failure
PL Performance Level
or Required Performance Level
PLC Programmable Logical Controller

Notes on safety

About this chapter
The product has been manufactured according to the accepted rules of current technology. Even so, there is a risk of injury and damage to equipment if the following chapter and warnings in this documentation are not followed.
▶ Read these instructions completely before working with the product.
▶ Keep this documentation in a location where it is accessible to all users at all times.
▶  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 the 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.
▶ 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 product-relevant 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 the 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 airflow into and out of a double-acting cylinder or another 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 the 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. Every 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 of 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 deactivates 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 another 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 deactivates 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 output to the solenoids is a dual-channel output from a safety relay or safety PLC.

Common Cause Failure – CCF
The product has been engineered and manufactured according to the basic and well-tried safety principles of ISO 1389-1 and -2.
Critical failure modes and causes:
▶ Incomplete reversal – caused by the incomplete return of solenoid valve B.
▶ The pressure applied at port 4 is not being dissipated – caused by the incomplete return of solenoid valve A.
▶  Failure of the safety function – caused by the simultaneous incomplete return of both solenoid valves (A and B).
Common Cause Failures (CCF) are failures of different components, resulting from a single event.
CCF is not to be confused with cascading faults or common mode faults. Common cause failures can cause loss of the safety function, especially in dual channel circuits where both channels could fail simultaneously due to a single event. The following measures ensure that failures due to common causes are avoided:
▶  Maintain compressed air quality, i.e., filtration, pressure regulation, and lubrication.
▶  Avoid compressor oils that can cause valve seals to swell, soften, or otherwise deteriorate.
▶ Operate within prescribed temperature limits.
▶  Install the valve such that the normal stroke travel of the valve element is perpendicular
to the main direction of machine vibration and/or mechanical shock.
▶  Observe the permissible values for vibration and shock stress.
▶ Do not use a test pulse longer than typically 400 to 600 ms and a pulse width of 0.4 ms to 0.8 ms.
▶ Avoid external magnetic fields.
▶  Do not plug the valve exhaust port.
▶ The silencer is included in the scope of delivery. Make sure that the silencer is not clogged, otherwise, the silencer must be replaced (see chapter 11 „Spare Parts“).

Diagnostic Coverage
A diagnostic coverage of 99% is achievable through appropriate integration of the safety valve into the safety control system. The monitoring system must check for the proper change of state of each valve sensor (S1 & S2) with each change of state of the safety control system output to the valve solenoids (Sol 1 & Sol 2). Detection of a fault by the safety control system must trigger a shut-off of the safety controller’s outputs to the valve solenoids (Sol 1 & Sol 2). See “Test Procedure”.

NOTE: On 5/2 versions, in the event of a fault where the side A valve element is deactivated and the side B valve element sticks within a very small, specific range of its travel,  there is a possibility of a condition where the pressure may not be present in port 2. This fault is detectable because one position sensor’s output will be high (on) and the other sensor’s output will be low (off).
WARNING: On 5/2 versions, in the event of loss of pressure in port 2 during a fault could cause unexpected movement of a cylinder that is being controlled by the valve.

Fault Modes
Note that normal operation requires that Sol 1 & Sol 2 be energized simultaneously for switching the safety valve on, and de-energizing both Sol 1 and Sol 2 simultaneously for switching the safety valve off. Faults that could occur during normal operation:
Sol 1 & Sol 2 energized simultaneously
▶ S1 ON, S2 OFF
▶ S1 OFF, S2 ON
▶ S1 OFF, S2 OFF
Sol 1 & Sol 2 de-energized simultaneously
▶ S1 ON, S2 OFF
▶ S1 OFF, S2 ON
▶ S1 ON, S2 ON Misuse

WARNING
Risk of Injury!
Misuse may result in injury or damage.
▶ The product must be used exclusively as intended.

Misuse includes:
▶ Use outdoors
▶ Bypassing the safety function or diagnostics
▶ Failing to utilize the onboard sensors to verify valve operation on every cycle – energizing and de-energizing
▶ Allowing continued operation of the valve when one or both valves shifted signals (from position sensors) are not confirmed.
▶  Use in reverse operation (reversal of supply and exhaust air)
▶ Operation in low-demand mode per IEC 61508
▶  Operating at pressures below minimum operating pressure or above maximum operating pressure.

Personnel qualifications
The work described in this document requires basic mechanical, electrical and pneumatic knowledge, as well as knowledge of the appropriate technical terms. In order to ensure safe use, these activities may therefore only be carried out by qualified technical personnel or an instructed person under the direction and supervision of qualified personnel.
Qualified personnel is those who can recognize possible hazards and institute the appropriate safety measures, due to their professional training, knowledge, and experience, as well as their understanding of the relevant regulations pertaining to the work to be done. Qualified personnel must observe the rules relevant to the subject area.

General safety instructions

▶ Observe the regulations for accident prevention and environmental protection.
▶ Observe the safety instructions and regulations of the country in which the product is used.
▶  Only use the safety valve in perfect working order.
▶ Persons who do any work on or with the safety valve must not consume any alcohol, drugs, or pharmaceuticals that may affect their ability to respond.
▶ Only use accessories and spare parts approved by the manufacturer.
▶  Comply with the technical data and ambient conditions listed in the product documentation.
▶ If unsuitable products are installed or used in safety-relevant applications, this may result in uncontrolled system operating states that may lead to injuries or equipment damage.
Therefore, only use a product in safety-relevant applications if such use is specifically stated and permitted in the product documentation.
▶ You may only commission the product if you have determined that the end product (such as a machine or system) in which the AVENTICS products are installed meets the
country-specific provisions, safety regulations, and standards for the specific application.

Safety instructions related to the product and technology

WARNING
The danger of injury due to stored energy (compressed air) and voltage!
When the system is at a standstill, there is still a danger due to stored energy (compressed air) and voltage. Dangerous movements are possible e.g. during exhaust.
▶  Generally avoid storing compressed air.
▶ Make sure that the relevant system part is not under voltage or pressure before you install the product or remove it from the system.
▶ Exhaust the system before working on it.
▶ Always protect the system against being switched on.
▶ Remove all other sources of danger in the immediate work area that may result from stored energy in the system.
The danger of injury by dismantling the safety valve!
Pre-tensioned springs may suddenly be released when dismantling.
▶ Never dismantle the safety valve.
Injuries if system-specific limits are not complied with!
The operating conditions for the safety valve may deviate from the system operating conditions.
▶ Always observe the information in the documentation for the superior system.
▶ Before assembly, contact the system manufacturer or AVENTICS GmbH to clarify any contradictions or questions.
The danger of burns caused by hot surfaces!
Touching the surfaces of the safety valve and adjacent components during operation could cause burns.
▶ Let the relevant system component cool down before working on the safety valve.
▶ Do not touch the relevant system component during operation.
Risk of injury due to loss of the safety function!
Depending on the application, you must take appropriate measures to ensure the safety function.
▶ When implementing safety measures against switch-off surges, check whether these extend the safety valve’s switch-off time.
▶ Check if the safety valve’s electrical connection cables have to be routed separately.
▶ In case of high levels of machine vibrations, use appropriate vibration- reducing elements when mounting the safety valve.
▶ Avoid overvoltages. These result in solenoid burnout.
Danger due to high sound pressure level!
During operation, the sound pressure level of the device can reach up to 94 dB (A). This may irreversibly damage the hearing.
▶Always wear ear protectors during operation.
Personal protective equipment
▶ Wear appropriate protective clothing during assembly and maintenance. Observe the applicable occupational safety regulations for the system.
▶  Always wear ear protectors during operation.
Responsibilities of the system owner
As the owner of a system that will be equipped with a safety valve, you are responsible for
▶ ensuring intended use,
▶ ensuring that operating employees receive regular instruction,
▶ ensuring that the operating conditions are in line with the requirements for the safe use of the product,
▶ ensuring that no unauthorized repairs are attempted if there is a malfunction.
Other requirements for the operator:
▶ Observe the information on assembly and operating conditions listed in the operating instructions or the data sheet.
▶ Comply with the further requirements of ISO 13849 (e.g. CCF, DC, PLr, software) if you intend to use the product in higher categories (2 to 4).
▶ Make sure that the maximum number of switching cycles (B10d ) within the service life TM (typical assumption as per ISO 13849-1 = 20 years) is not exceeded. If the expected number of switching cycles for a component exceeds the B10d value during its period of use, suitable exchange intervals have to be specified.
▶ Switch the safety valve at least once a month to ensure its proper function.
▶ Make sure that the basic and well-tried safety principles in accordance with ISO 13849 for implementation and operation of the component are complied with.
▶ Make sure that the permissible positive and negative test pulses for the feedback-free operation of the pneumatic devices are observed (see chapter 12 “Technical Data“).

Scope of delivery

▶ 1 safety valve
▶ 1 operating instructions
▶ 1 silencer, must be mounted
▶ 1 declaration of conformity

Device Description

Product identification
Check the material number of the safety valve, which can be found on the nameplate ( –8), to determine whether the product matches your order (for details on the nameplate  ee ). 2 3

Safety valve 2

  1. Compressed air supply connection 1
  2. Operating line connection 2
  3. Exhaust connection 3
  4. Operating line connection 4
  5.  Exhaust connection 5
  6. M8 connector for the position sensor
  7.  Pilot valves
  8. A nameplate (identification of the safety valve)
  9. Slot for fastening screws
  10. Connection for external pilot supply (eps)
  11.  Optional port for soft start function (to use with soft start valve R412006312)
  12. Connection for pressure switch
  13. Alternative compressed air supply connection 1

Transport and Storage

The safety valve is packaged to protect it from contamination. Do not remove the packaging until just before assembling the valve.

Transport

  CAUTION

The danger of injury from falling!
The safety valve can weigh up to 2990 g and cause injury if it falls.
▶ Always transport the safety valve carefully.
▶ Wear suitable protective clothing, such as safety shoes.
NOTICE

Safety valve damage due to falling!
If the safety valve falls, the product may be damaged even if no damage is visible.
▶ Always transport the safety valve carefully.
▶  If the safety valve has fallen, it must not be installed.
▶ Check the packaging when you receive the product. If the packaging is damaged, the safety valve must not be installed.

Storage

NOTICE

Damage to the safety valve due to incorrect storage!
Unfavorable storage conditions can result in corrosion and material deterioration. The maximum storage period is two years.
▶ Only store the safety valve in dry, cool, and corrosion-proof environments. Avoid direct sunlight.
▶ Keep the safety valve in the original or delivery packaging if you do not install it immediately.
▶ Never use a safety valve that has been stored for longer than two years.

Assembly and Installation

WARNING
The danger of injury due to the assembly of the product while the system is running!
Assembly of the product, while the system is running, can cause major injuries from moving machinery.
▶ Bring the system mode into a state in which working movements are no longer possible.
Wait until all moving machine parts come to a standstill, and protect the system against being switched on.
The danger of injury due to payloads!
Payloads that are carried with the help of compressed air pose a danger if they are not secured before the pressure is switched off in the system.
▶ Guide the payloads into a safe position or remove them from the system.
▶ You may only then switch off the pressure in the relevant section of the system.

The following must be observed during assembly:
▶ The safety valve is packaged to protect it from contamination. Do not remove the packaging until just before assembling the safety valve.
▶ All compressed air connections and control elements must remain freely accessible after installation.
▶ The safety valve must be attached in such a way that it cannot be loosened by jolts, vibrations, or the like.
▶ Make sure that the safety valve is only used as described in chapter “Intended use”.

Preparing for installation

  1. Stop system operation and protect it against being switched on.
  2. Return all carried payloads to a statically secure position or remove them from the system.
  3.  If required, exhaust stored compressed air from system parts in the immediate work area.
  4. Make sure the relevant section of the system is not under pressure or voltage and protect it from being switched on.
  5. Secure self-turning or other movable system parts before starting assembly.
  6. Let the safety valve acclimatize itself for several hours before installation, otherwise, water may condense in the housing.
  7. 3/2 safety valve : Mount the silencer to port 3 of the safety valve.
    5/2 safety valve: Mount the silencers to ports 3 and 5 of the safety valve.
    WARNING: Silencers must be mounted on the safety valve to prevent any damage to health due to loud noise.

Mechanical installation
Secure the valve using the through holes in the valve base. Refer to the pattern for the required dimensions.
To mount a single valve:
▶ See figure. 4
To mount the valve as part of a maintenance unit:
▶ See figure .5
The valve must be mounted on both sides with one mounting element on the mounting surface.
Requirement:
The supply pressure must always be between:
▶ 3 to 10 bar with internal pilot supply
▶ 0 to 10 bar with external pilot supply. The external pilot pressure must be between 3 to 10 bar.

Valves are delivered with internal supply. To convert your safety valve from an internal to an external supply, contact our technical support.

The correct function of the safety valve with internal pilot supply is not guaranteed if the supply pressure is lower than 3 bar.

  1. Connect the pressure line for the supply pressure to connection 1 (1, IN).
  2.  3/2 safety valve: Connect the operating line to connection 2 (2, OUT).
    5/2 safety valve: Connect the operating lines to connections 2 (2, OUT) and 4 (4, OUT).

Electrical installation 6

  1. Connect the pilot valves.
    –PIN1: L+
    –PIN3: L2.

  2. Connect the sensors.

Commissioning and Operation

WARNING
The danger of injury while working on the system!
Working while the system is running can cause major injuries from moving machinery.
▶ Maintain a sufficient safety distance to moving machine components.
▶ Do not work on the system while it is running.
Damage to health due to loud noise!
Levels above 70 dB(A) may lead to damage to health!
▶ Always wear ear protectors during operation.

Before commissioning, the installation has to be carefully inspected by a qualified, trained professional.
▶ Make sure that the technical specifications match the operating criteria of the machine and/ or the pneumatic system.
▶ Always set the compressed air supply to a level that ensures that the minimum operating pressure is adhered to (see “12 Technical Data”).

Test Procedure
3/2 Valves

Test Result
7. Solenoid A energized The valve is faulted, the supply is shut off, and

downstream air
exhausts through port 3. Sensor A voltage is off, and sensor B is on.
8. Reset valve by de-energizing both solenoids| The valve is off, the supply is shut off, and downstream air is exhausted through port 3. Sensors A & B are high.
9. Solenoid B energized| The valve is faulted, the supply is shut off, and downstream air exhausts through port 3. Sensor A is on, sensor B is off.
10. Reset the valve by de-energizing both solenoids| The valve is off, the supply is shut off, and downstream air is exhausted through port 3. Sensors A & B are on.
11. Solenoids A & B energized| The valve is on, air pressure is supplied downstream through port 2, and port 3 is shut off. Sensors A & B are off
12. Solenoids A & B de-energized| The valve is off, the supply is shut off, and downstream air is exhausted through port 3. Sensors A & B are on

5/2 Valves

Test Result
1. Solenoid A energized The valve is faulted, port 2 is pressurized, and

port 4 is exhausted through port 5. Sensor A is off, sensor B is on
2. Reset the valve by de-energizing both solenoids| The valve is off, port 2 is pressurized, and port 4 is exhausted through port 5. Sensors A & B are on.
3. Solenoid B energized| The valve is faulted, port 2 is pressurized, and port 4 is exhausted through port 5. Sensor A is on, sensor B is off
4. Reset valve by de-energizing both solenoids| The valve is off, port 2 is pressurized, and port 4 is exhausted through port 5. Sensors A & B are on
5. Solenoids A & B energized| The valve is on, port 4 is pressurized, and port 2 is exhausted through port 3. Sensors A & B are off
6. Solenoids A & B de-energized| The valve is off, port 2 is pressurized, and port 4 is exhausted through port 5. Sensors A & B are on

Results from the test procedure other than those listed above indicate a valve malfunction. See “8 Care and Maintenance”.
Failure of the valve to shift synchronously can be monitored with the help of the sensors. This malfunction could happen for a variety of reasons, such as:
▶ Defective piston seals,
▶ Main valve elements experiencing a switching delay due to dirt or resinous oil,
▶ Insufficient electrical signals to valve solenoids; suitable voltage not available,
▶ Receipt of signals at solenoids not synchronous,
▶ Pilot valves experiencing a switching delay due to damaged components, dirt, or resinous oil,
▶ Excessive water build-up in the valve.

Care and Maintenance

Care

NOTICE
Damage to the product due to the use of solvents and aggressive cleaning agents!
The product can be damaged if washed with a solvent or aggressive cleaning agent. The chemical resistance of the valve material to such products is not guaranteed. Solvents and aggressive detergents will destroy the surface, labeling, and seals of the product.
▶ Make sure that no solvents and aggressive cleaning agents come into contact with the valve.
Damage to the product due to washing at high pressures and temperatures!
The product will be damaged if you clean it with high pressure and/or at a high temperature.
▶ Make sure that the product is not cleaned with high pressure and/or at a high temperature.

No special care is required for the safety valve. Note the following if you would like to clean the valve:
▶ Check that all seals and plugs for the plug connections are firmly seated so that no humidity can penetrate the safety valve during cleaning.
▶ Only clean the safety valve using a slightly damp cloth. Only use water to do this and, if necessary, a mild detergent.

Maintenance

WARNING
Risk of injury while working on a running system!
Working while the system is running can cause major injuries from moving machinery.
▶ Bring the system mode into a state in which working movements are no longer possible.
Wait until all moving machine parts come to a standstill, and protect the system against being switched on.
In normal operation, the safety valve is maintenance-free. However, to ensure the correct function, the safety valve must be actuated at least once per month.
▶ Activate the safety valve at least once per month.
▶ Perform a functional test at least annually (see “Test Procedure”)
The safety valve seals may age faster in aggressive ambient conditions. A damaged seal can be recognized by parts of the seal visibly protruding from the housing gaps. Defective seals will lead to pneumatic leaks. Please return to the factory in case of a faulty product.
▶ Regularly check that the seals are in perfect order.
▶ Immediately exchange the safety valve if the seals are defective.
▶ Check regularly whether all plug connectors are firmly fitted.
▶ Establish the maintenance intervals according to your ambient conditions and enter them in the system-dependent maintenance plan.
▶ Observe the system-specific maintenance intervals.
In case of any maintenance requirements, it is advisable to replace the entire safety valve as this is the only way of ensuring a life cycle value for the entire valve.

The operator is responsible for determining the maintenance intervals.

Disassembly and Exchange

WARNING
The danger of injury if disassembled under pressure or voltage!
Uncontrolled movement of the system components!
▶ Make sure that the system is not under pressure or voltage when you remove the safety valve from the system.

NOTICE
Contamination during disassembly!
During disassembly, greases or lubricants may escape from the safety valve.
▶ Make sure that the environment is not contaminated with greases or lubricant during disassembly.

Disassembly

  1. Switch off the 24 V DC supply.
  2. Remove the connected plugs.
  3.  Switch off the supply pressure and exhaust the supply line.
  4.  Remove the pneumatic lines.
  5. Remove the valve fastening screws depending on the mounting type.
  6. Remove the valve from the system.

Exchange

  1.  Disassemble the safety valve as described above.
  2. Assemble a new safety valve as described in the chapter “Assembly and Installation“.

 Disposal

▶ Dispose of the safety valve in accordance with the currently applicable regulations in your country.
Spare Parts

Silencers can be replaced as spare parts by the user when applicable (For example in case of dirt, excess oil, air pollution, or mechanical damage)

Designation Mat. no.
Silencer, G1/8, 94 dB, Qn = 1664 l/min R412010283
Silencer, G1/4, 96 dB, Qn = 2687 l/min R412010245
Silencer, G1/2, 100 dB, Qn = 6285 l/min R412010247

Technical Data

General data

Dimensions (length x width x height) See online catalog
Max. Weight SV01: 1300 g

SV03: 1700 g
SV05: 3000 g
SV03-AS2: 1900 g
Design| Redundant 5/2 (or 3/2) directional valve elements of spool construction. (3/2 of the function is Normally Closed.)
Actuation| Solenoid pilot operated with spring return.
One solenoid per valve element both to be operated synchronously
Flow Media| Compressed air according to ISO 8573-1 Class 7:4:4
Operating Pressure Range| 43 to 145 psi (3 to 10 bar) with an internal pilot supply.
0 to 145 psi (0 to 10 bar) with an external pilot supply. The external pilot pressure must always be equal to or greater than the inlet pressure and at least 3 bar.
Ambient/Media Temperature| 40° to 120°F (4° to 50°C)

Safety classification

Directives See declaration of conformity
Standards ISO 13849-1
Safety functions “Safe exhaust” and “protection against unexpected start-up”,

and “safe  cylinder return” “(depending on the type of the valve)
Vibration resistance (DIN EN 60068-2-6)| 0.35 mm ± 0.05 mm displacement at
10 Hz…55 Hz
Shock resistance (DIN EN 60068-2-27)| 30 g with 18 ms duration
Shock waveform| Sinus half-wave
Safety classification| Max. category 4, PL e, SIL 3
MTTFd| See AVENTICS SISTEMA library
B10D Value According to ISO 13849-1 and -2| See AVENTICS SISTEMA library
Common Cause Failure – CCF| > 65
Diagnostic coverage| up to high, 99% (depending on the monitoring
system)
Noise level [dB (A)]| ▶With silencer, G1/8, 94 dB(A)
▶  With silencer, G1/4, 96 dB(A)
▶ With silencer, G1/2, 100 dB(A)
▶ do not recommend using the product without silencers.
Minimum Operation Frequency| 1 x per month, to ensure proper function
Maximum Cycle Rate| 2 Hz
Mounting Orientation| Any, preferably vertical
O Install the valve such that the normal stroke travel of the valve element is perpendicular to the main direction of machine vibration and/or mechanical shock.
Monitoring| Dynamic, cyclical, external with customer-supplied equipment. Monitoring  should check the state of both valve position sensors with any and all changes in  the state of valve control signals
Solenoids| Per VDE 0580.
Rated for continuous duty. Electrical connection according to EN 175301- 803 Form C. Enclosure rating according to IP 65 – IEC 60529 (VDE 0470)
Standard Voltage| 24 volts DC
Power Consumption (each solenoid)| 1.5 Watts per solenoid
Current Consumption (each sensor)| < 23 mA
Maximum Recommended Allowable
Discordance Time| 250 msec
Flow Rate [l/min]|
---|---
Valve| 1>2| 2>3| 1>4| 4>5
SV01, 3/2 G1/8“| 605| 1300| –| –
SV01, 5/2 G1/8“| 840| 480| 570| 740
SV03, 3/2 G1/4“| 690| 1450| –| –
SV03, 5/2 G1/4“| 960| 680| 780| 840
SV05, 3/2 G1/2“| 2100| 6610| –| –
SV05, 5/2 G1/2“| 2040| 1490| 1520| 1780
Switching times [ms]| | | |
Valve| ON| | OFF|
SV01| 20| | 40|
SV03| 30| | 70|
SV05| 40| | 180|

▶ For further technical data, see the catalog pages in the online catalog (see www.aventics.com/pneumatics-catalog).

AVENTICS GmbH
Ulmer Straße 4
30880 Laatzen, GERMANY
Phone +49 (0) 5 11-21 36-0
Fax: +49 (0) 511-21 36-2 69
www.aventics.com
aventics@emerson.com
Further addresses:
www.aventics.com/contact

The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The given information does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a  natural process of wear and aging. An example configuration is depicted on the title page. The delivered product may thus vary from that in the illustration.  Translation of the original operating instructions. The original operating instructions were created in the German language.
R412027221-BAL-001-AA/2019-09 Subject to modifications. © All rights reserved by AVENTICS GmbH, even and especially in cases of proprietary rights applications. It may not be reproduced or given to third parties without its consent.

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