Festo MS6N-SV Installation instructions

8111058
MS6(N)-SV-...-E-ASIS
Soft start/quick exhaust valve
8111058
2019-05a
[8111060]
Instructions|
Assembly, Installation,
Safety func.

Translation of the original instructions
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3Festo — MS6(N)-SV-...-E-ASIS — 2019-05a
1 Applicable documents................................................................................................. 4
1.1 Specified standards...................................................................................................... 4
2 Safety........................................................................................................................... 4
2.1 Safety instructions........................................................................................................ 4
2.2 Intended use................................................................................................................ 4
2.3 Foreseeable misuse...................................................................................................... 5
2.4 Training of qualified personnel..................................................................................... 5
3 Additional information................................................................................................ 5
4 Service..........................................................................................................................5
5 Product overview......................................................................................................... 5
5.1 Design........................................................................................................................... 5
5.1.1 Product design........................................................................................................5
5.2 Function....................................................................................................................... 6
5.3 Safety function in accordance with EN ISO 13849........................................................ 8
6 Assembly..................................................................................................................... 9
6.1 Assembly with MS-series service unit components....................................................... 10
7 Installation.................................................................................................................. 11
7.1 Pneumatic installation.................................................................................................. 11
7.2 Electrical installation.................................................................................................... 12
8 Commissioning............................................................................................................ 16
9 Operation..................................................................................................................... 17
10 Maintenance................................................................................................................ 17
10.1 Maintenance work........................................................................................................ 17
10.2 Cleaning....................................................................................................................... 17
11 Malfunctions............................................................................................................... 17
11.1 Diagnostics................................................................................................................... 17
11.2 Fault clearance............................................................................................................. 18
12 Disassembly................................................................................................................ 18
13 Disposal........................................................................................................................19
14 Technical data............................................................................................................. 19
14.1 Technical data, mechanical........................................................................................... 19
14.2 Technical data, pneumatic............................................................................................ 19
14.3 Technical data, electrical.............................................................................................. 21
14.4 Safety engineering characteristics................................................................................ 22
14.5 Switch-through pressure/filling time............................................................................ 22
14.6 Filling flow.................................................................................................................... 23
14.7 Exhaust time................................................................................................................. 24
Table of contents

1 Applicable documents
All available documents for the product èwww.festo.com/pk.
1.1 Specified standards
Standard Title
EN ISO 13849-1:2008-06 Safety of machinery - Safety-related parts of control systems
Part 1: General principles for design
EN ISO 13849-2:2008-06 Safety of machinery - Safety-related parts of control systems
Part 2: Validation
EN 50295:1999-10 Low-voltage switching devices, control and device interface; Actuator
Sensor Interface (AS-interface)
EN 60204-1:2006-06 Safety of machinery - Electrical equipment of machines
Part 1: General requirements
EN 61508-3:2010-05 Functional safety of safety-related electrical/electronic/programmable
electronic systems
Part 3: Software requirements
IEC 62026-2:2008-01 Low-voltage switching devices - control device networks (CDIs)
Part 2: Actuator Sensor Interface (AS-i)
EN ISO 4414:2010-11 Fluid engineering - General rules and safety requirements for pneumat-
ic systems and their components
Tab. 1 Standards
2 Safety
2.1 Safety instructions
– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Observe labelling on the product.
– Take into consideration the ambient conditions at the location of use.
– Prior to mounting, installation and maintenance work: Switch off power supply and secure it from
being switched back on.
– Observe tightening torques. Unless otherwise specified, the tolerance is±20%.
2.2 Intended use
The product is intended solely for fast and safe venting and for building up pressure gently in pneu-
matic piping systems and terminals in industry.
Applicable documents
Festo — MS6(N)-SV-...-E-ASIS — 2019-05a4

The product is exclusively designed for use in bus systems in accordance with the AS-Interface spe-
cification (SPEC 3.0, Profile 7.5.5).
The product is intended for installation in a machine or automated system and must be used exclus-
ively as follows:
– In an industrial environment
– Within the limits of the product defined by the technical data è 14 Technical data.
– In its original condition, without unauthorised modifications
– In perfect technical condition
– In standard operation, which includes standstill, set-up and service operation, as well as emer-
gency operation
2.3 Foreseeable misuse
The following examples of foreseeable misuse are among those not approved as intended use:
– Outdoor use
– Use as press safety valve
– Bypass of the safety function
– Use in reversible operation (using supply air instead of exhaust air, and vice versa)
– Vacuum operation
2.4 Training of qualified personnel
Installation, commissioning, service and disassembly should only be conducted by skilled personnel.
The skilled personnel must be familiar with the installation of electrical and pneumatic control sys-
tems.
3 Additional information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions èwww.festo.com.
5 Product overview
5.1 Design
5.1.1 Product design
The product corresponds to category 3+4 with a maximum achievable performance level e in accord-
ance with EN ISO 13849-1.
Additional information
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1LED AS-i
2Status LED
3Flow control screw for soft start function
4Pneumatic port 1 (compressed air inlet)
5Electronic insert
6Mono-block valve
7AS-Interface bus connection
Fig. 1 Operating elements and connections
8Pneumatic port 2 (compressed air outlet)
9Functional earth connection with earthing channel
(pre-assembled)
10 Pneumatic port 3 (exhaust)
Fig. 2 Operating elements and connections
5.2 Function
The product is a self-testing, redundant mechatronic system that meets the requirements of the EN
ISO 13849-1+2 and guarantees the pneumatic safety function, safe venting, even in the event of a
fault in the valve, e.g. due to wear or contamination. Another safety function of the product is the pro-
tection against unexpected start-up after EN 1037.
Via the safety-related electrical connection, the product is connected as a slave to the AS-i-Safety at
Work environment without additional devices.
Product overview
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Definitions of terms AS-Interface
Term Description
Master Component for data transmission that controls the logical and temporal beha-
viour on the AS-i line.
Safety monitor Component that monitors the safety-related slaves and the correct function-
ing of the network. The AS-i safety monitor is configured and commissioned
via a PC/notebook with the configuration software AS-iMon.
Slave Component for data transmission that is addressed cyclically by the master
via its address and only then generates an answer.
AS-iMon Configuration software for the AS-i network
Tab. 2 Definitions of terms AS-Interface
Brief description AS-i
The actuator-sensor interface (AS-i) is a system for networking sensors and actuators at the lowest
level of the automation hierarchy. It is a manufacturer-independent, open bus system and enables
data and power transmission on just one line. This simple application enables an economical design
with reliable operating performance at the same time. The network topology of the AS-i system is
arbitrary and easily expandable.
A AS-i network consists of a control unit, a so-called master, and the associated sensor and actuator
components, the slaves. The master polls all configured slaves cyclically and exchanges the input and
output data with them. A telegram consists of 4-bit user data. The master communicates with the par-
ticipants using a serial transmission protocol.
With AS-i Safety at Work, a certified standard has been developed that enables the use of safety-
related components, e.g. MS6(N)-SV-...-E-ASIS in the AS-i system. The safe AS-i system is intended
for safety applications up to category 4 according to EN ISO 13849-1PL e. Mixed operation of standard
components and safety-related components is possible. The AS-i master considers the safety-related
slaves like all other slaves and integrates them into the network. The transmission protocol and the
lines of the AS-i system are designed in such a way that they can also transmit safety-oriented tele-
grams.
The AS-i safety monitor is the central safe element and monitors the safety-related slaves assigned to
it within a AS-i system. The safety function is achieved by the additional signal transmission between
the safety-related slaves and the AS-i safety monitor. This transmission takes place using a special
security protocol.
In the event of a stop request or a defect, the AS-i safety monitor safely switches off the system in pro-
tective mode with a reaction time of max. 40ms.
Product overview
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Fig. 3 Example AS-i Safety at Work
5.3 Safety function in accordance with EN ISO 13849
NOTICE!
Failure of the safety function.
The product must be switched off at least once a month to guarantee the safety function.
NOTICE!
Failure of the safety function.
If control measures to handle “common cause failures” (CCF) are not complied with, the safety func-
tion of the soft start/quick exhaust valve can be impaired.
• Make sure that the described measures observed
è Failures due to a common cause (Common Cause Failure – CCF) and
è 14.4 Safety engineering characteristics.
NOTICE!
Failure of the safety function.
Non-compliance with the technical data can lead to loss of the safety function.
For the safety functions, the product has control characteristics with which a performance level e can
be achieved.
This product has been designed and manufactured in accordance with the fundamental and reliable
safety principles of EN ISO 13849-2.
The following requirements apply to the manager:
Product overview
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– Specifications on mounting and operating conditions in these operating instructions must be
observed.
– For use in higher categories (2 to 4), the requirements of EN ISO 13849, e.g. CCF, must be con-
sidered.
– The basic safety principles of EN ISO 13849-2 relating to implementation and operation of the
component must be satisfied. For categories 2 to 4, the proven safety principles must be fulfilled
in accordance with EN ISO 13849-2 for the implementation and operation of the component.
– When using this product in machines or systems subject to specific C standards, it must be in
compliance with the requirements specified in the standards.
– Before using the product, a risk assessment in accordance with the EC Machinery Directive
2006/42/EG, Appendix I, Paragraph 1 and 1.1.2 is required.
– The user is responsible for coordinating all applicable safety regulations and rules with the com-
petent authority and for compliance with regulations and rules.
Failures due to a common cause (Common Cause Failure – CCF)
Common cause failures cause the loss of the safety function, since in this case both channels in a two-
channel system fail simultaneously.
The following measures ensure that common cause failures are avoided:
– Compliance with the permissible values for vibration and shock stress
– Compliance with the temperature range
– Compliance with compressed air quality as specified in the technical data, in particular avoiding
flash rust particles (such ascaused by servicing work) as well as compliance with the residual oil
content of max. 0.1mg/m3 when using ester-containing oils (which may, for example,be con-
tained in the compressor oil)
– Compliance with the maximum operating pressure, if necessary with a pressure-relief valve
– Clogging of the silencer must be avoided è Fig.4.
6 Assembly
NOTICE!
In order to ensure electromagnetic compatibility in accordance with the EMC Directive, note the follow-
ing:
• Ensure a wall clearance of 32mm, e.g. with the MS6-WPB mounting bracket.
• Do not lay cables between the wall and the product.
NOTICE!
Failure of the safety function.
Failure to comply with the minimum distance of 15mm between the silencer and base can result in
the loss of the safety function.
• Observe minimum distance of 15mm below the silencer è Fig.4.
The free space ensures the exhaust can escape.
– Place product as close as possible to the installation site
– The product can be mounted in any position
Assembly
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Fig. 4 Installation
– Observe the flow direction 1 to 2. The numerals 1 on the product housing serve as orientation.
Fig. 5 Flow direction
6.1 Assembly with MS-series service unit components
WARNING!
Failure of the safety function.
Incorrect installation in the service unit combination can result in failure of the exhaust safety func-
tion.
• Only devices that do not impair the exhaust process, even after a possible malfunction of the
device, may be placed downstream from the MS6-SV-….
Assembly
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Fig. 6 Assembly
1. Slide the cover cap MS6-END 1 upwards and remove it.
2. Insert a seal 2 between the individual devices (module connector MS6-MV in scope of delivery).
3. Place module connector 2 in the slots of the individual devices.
4. Fasten the module connector with two screws (product scope of delivery). Tightening torque: max-
imum1.2 Nm.
7 Installation
7.1 Pneumatic installation
Port 1 and 2
If using screw connectors:
– Note the screw-in depth of the connector thread: 10mm.
– Make sure that the compressed air lines are connected correctly.
– Screw the connectors into the pneumatic connections using a suitable sealing material.
Port 3 (thread size G1 or NPT1)
Exhausting a system using the product results in high noise levels.
• Recommendation: use silencer èwww.festo.com/catalogue.
– Screw the silencer into pneumatic port 3.
– Make sure exhaust has no obstacles: do not block silencer or port 3.
For the product, an adapter (from thread size NPT1 to G1) must also be mounted between the silencer
and the product.
Installation
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7.2 Electrical installation
WARNING!
Risk of injury due to electric shock.
• For the electrical power supply, use only PELV circuits in accordance with IEC 60204-1/EN 60204-1
(Protective Extra-Low Voltage, PELV).
• Observe the general requirements of IEC 60204-1/EN60204-1 for PELV circuits.
• Only use voltage sources that ensure a reliable electric separation from the mains network in
accordance with IEC 60204-1/EN 60204-1.
Connect earthing cable
• Connect the pre-assembled earth strap to the earth potential with low impedance (short cable
with large cross-section).
This prevents malfunctions due to electromagnetic interference and ensures electromagnetic compat-
ibility in accordance with the EMC Directives.
Fig. 7 Earth cable connection
Connecting the AS-i bus
The following must be observed for branch lines:
– The maximum total length of the AS-i bus: 100m without repeater/extender
– The cable length of the load voltage connection (depending on the current consumption and the
fluctuations of the load voltage).
Installation
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Connection to the M12 plug connector
M12 plug, 4-pin (In) M12 bushing, 4-pin (Out)
Pin 1: AS-i + Pin 1: AS-i +
Pin 2: n. c. Pin 2: addressing contact -
Pin 3: AS-i - Pin 3: AS-i -
Pin 4: n. c. Pin 4: addressing contact +
Tab. 3 Connection AS-i-Interface-Bus
Seal unused connections with suitable protective caps èwww.festo.com/catalogue.
AS-Interface addresses
Before commissioning, a non-safety-related slave address and a safety-related slave address must be
assigned to the product.
The modules or slaves that have been addressed must be labelled carefully.
Address allocation
Cyclic digital data
Inputs
n. c. n. c. DI1 DI0
Description
0 0 Exhaust pneumatic condition
0 1 Pressurise pneumatic condition
1 0 Soft error; pneumatic limits exceeded /
not reached
1 1 Serious error; defect in hardware / software
uncovered
Tab. 4 Inputs for cyclic digital data
Outputs
DO3 DO2 n. c. n. c.
Description
x x Not used
Tab. 5 Outputs for cyclic digital data
Installation
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Cyclic analogue values
A15 … A0 Description
xxxxxxxxxxxxxxxxxxxx Pressure p1
Tab. 6 Outputs for cyclic analogue values
A15 … A0 Description
xxxxxxxxxxxxxxxxxxxx Pressure p2
Tab. 7 Outputs for cyclic analogue values
Acyclic values
Data format of diagnostic AS-i object 00 (17 bytes)
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Meaning:
0 Vendor ID (high Byte) Value 01hex
1 Vendor ID (low Byte) Value 4Dhex
2 Device ID (high Byte) Value 03hex
3 Device ID (low Byte) Value A6hex
4 Specification of the analogue inputs/outputs Value 03hex
5…20 Product key Value xxhex
21 Switching cycle counter valve (low Byte) Value xxhex
22 Switching cycle counter valve Value xxhex
23 Switching cycle counter valve Value xxhex
24 Switching cycle counter valve (high Byte) Value xxhex
25 Monthly counter Value xxhex
Tab. 8 Data format of diagnostic AS-i object 00
Installation
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Data format of diagnostic AS-i object 01 (16 bits)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Meaning
0 Pneumatic error: minimum operating pressure not reached (p1<p1min.) 3.5bar)
1 Pneumatic error: maximum operating pressure exceeded (p1<p1min.). 10bar)
2 Self-test:
0=not ready for operation
1=ready for operation
3 Internal error. Leads to shutdown and lockout
4 Overrun tmin (1/month)
5 Status AUX1, e.g. AS-i communication error
6 Status AUX2
7…12 Unassigned
13…15 Internal valve diagnostics
Tab. 9 Data format of diagnostic AS-i object 01
Assigning the AS-i address
Recommendation: use the addressing device ASI-PRG-ADR with connecting cable KASI-ADR from
Festo. The addressing device scans the slave connected to the addressing device.
Addressing for safety-related slave:
1. Insert the AS-i configuration plug CACC-CP-AS into the M12 bushing.
ÄThe mode switch changes from run to prog.
2. Assign the desired address to the slave with an addressing device or with the AS-i master. Per-
missible address range 1…31. Factory setting: address #0.
3. Check the address with the addressing device or AS-i master.
4. Check ID-Code. This must be Fhex.
5. Check ID1-Code. This must contain the 10th digit of the safety address.
6. Check ID2-Code. This must contain the 1st digit of the safety address.
7. Check IO-Code. This one must be 7.
8. If the verification of the codes was incorrect, repeat the procedure from step 1.
9. Disconnect the AS-i configuration plugCACC-CP-AS.
ÄThe mode switch changes from prog to run.
Addressing for non-safety-related slave:
1. Assign an unused address to each slave.
2. Connect the slave to the AS-Interface-Bus.
Installation
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NOTICE!
Through use of the AS-i configuration plugCACC-CP-AS, pin1–pin 4 and pin 2–pin 3 are connected to
the AS-i connection plug. In this status, the valve goes into the addressing mode for the safe address.
The address can now be set using AS-i-Master or an an addressing device in accordance with SPEC
V2.1. If the addressing device ASI-PRG-ADR is used, the valve must be supplied from an external
voltage source. The addressing cable KASI-ADR must be used.
NOTICE!
If the safe address is set via the AS-i master, an address conflict may occur between the slave and
monitor in the master.
The safe address of the slave is only registered on the bus when the AS-i configuration plug is plugged
in. If the monitor is already logged in to the bus with the same address, the result is an address con-
flict.
8 Commissioning
The prerequisite for commissioning the product is the assignment of a non-safety-related slave
address and an address of a safety-related slave.
1. Apply operating pressure p1.
2. Switch on the AS-i operating voltage. The product runs a self-test for errors.
– LED AS-i lights up green:
– Status LED
– Flashes green after successful self-test
– Flashes red Operating pressure p1 is absent or outside the permissible range
è 14 Technical data.
– Lights up permanently red if the self-test è 11.2 Fault clearance is faulty.
If the self-test is successful, compressed air is briefly blown off the silencer.
ÄThe product can be pressurised.
The valve is tested pneumatically in a self-test once an hour for as long as the product
remains in this status. Operating pressure p1 must be applied; otherwise, the valve switches
to malfunction.
3. Generate a safety-related AS-i telegram using the AS-i safety monitor.
– The product changes to the pressurised state.
– The status LED is permanently illuminated green.
– The outlet pressure p2 is built up slowly.
Duration t of the pressure build-up is adjusted with the flow control screw attached to the cover.
The output pressure rises depending on the throttle setting è 14.6 Filling flow.
When the switch-through pressure is reached (approx. 50%of operating pressure p1), the valve’s
main seat opens è 14.5 Switch-through pressure/filling time.
The product is ready for operation (safety function safe venting).
Commissioning
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9 Operation
The mechanical system of the product is not tested when it is pressurised.
• Perform a forced switch-off at least once a month if the process-related switching frequency is
lower.
When designing the system, take into account the maximum switching frequency and the life rating of
the product to ensure optimum availability è 14 Technical data.
10 Maintenance
10.1 Maintenance work
A dirty silencer can extend the time needed for exhausting the system and thus restrict the safety func-
tion.
• Check the silencer regularly and replace if necessary.
10.2 Cleaning
1. Switch off energy sources:
– Operating voltage
– Compressed air
2. Clean the outside of the product as required. Approved cleaning agents are soap solutions (max.
+50°C), petroleum ether and all non-abrasive cleaning agents.
11 Malfunctions
11.1 Diagnostics
LED display
LED AS-i Diagnostics
Off No AS-i voltage available
Illuminated green AS-i interface voltage applied, no error
Illuminated red AS-i address not set (equals 0)
Illuminated red Failure of bus communication, e.g. watchdog expired
Flashes green/red Error in exhaust valve
Tab. 10 Diagnostics LED AS-i
Operation
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11.2 Fault clearance
Malfunction Possible cause Remedy
Pressure supply was interrupted – Restore pressure supply
– Reset the AS-i slave (MS6-SV)
Note: monitoring of the pressure via
object 01
Serious error (internal error) Replace valve, contact Festo
Output 2 exhausted,
even though the safety
circuit is closed.
AS-i communication error Check AS-i bus configuration
Pressure supply was interrupted – Restore pressure supply
– Reset the AS-i slave (MS6-SV)
Note: monitoring of the pressure via
object 01
Serious error LED
status lights up red
Hardware defect (mechanical or/and
electronic)
Replace valve, contact Festo
Lack of supply pressure – Restore pressure supply
– Reset the AS-i slave (MS6-SV)
Supply pressure outside the pres-
sure limits 3.5-10bar
Check compressed air supply
Status 1 –
Ready for operation is
not achieved (self test
not passed)
Hardware defect èmalfunction, ser-
ious error
Replace valve, contact Festo
Pressure p1 collapses
briefly at every switch-
ing operation
Non-underlap poppet valve èThe
behaviour is reinforced if the valve is
operated with small volumes / hose
diameters and the soft-start throttle
is opened completely.
Tab. 11 Fault clearance
12 Disassembly
1. Switch off the following energy sources for expansion:
– Operating voltage
– Compressed air
2. Separate the applicable connections from the product.
When using a commercially available silencer, the cushioning body may become clogged, which can
result in reduced reduced exhaust performance and back pressure.
• Use the safety silencer that belongs to the device èwww.festo.com/catalogue.
Disassembly
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13 Disposal
ENVIRONMENT!
Send the packaging and product for environmentally sound recycling in accordance with the current
regulations èwww.festo.com/sp.
14 Technical data
14.1 Technical data, mechanical
Product MS6-SV-...-E-ASIS MS6N-SV-...-E-ASIS
Type of mounting In-line installation
With accessories
Constructive design Piston seat has no overlap
Position sensing principle Piston magnet principle
Reset method Mechanical spring
Mounting position Any
Sound pressure level [dB(A)] 75 with silencer UOS-1
Environmental conditions
Shock resistance Shock test with severity level 2 in accordance with FN
942017-5 and EN 60068-2-27
Vibration resistance Transport application test with severity level2in
accordance with FN 942017-4 and EN 60068-2-6
Degree of protection
Degree of protection IP65
Note With plug socket
Materials
Housing Die-cast aluminium
Seal NBR
Tab. 12 Technical data, mechanical
14.2 Technical data, pneumatic
Product MS6-SV-...-E-ASIS MS6N-SV-...-E-ASIS
Pneumatic connection 1, 2 G½ (ISO 228) NPT½-14
Pneumatic port 3 G1 (ISO 228) NPT1
Disposal
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Product MS6-SV-...-E-ASIS MS6N-SV-...-E-ASIS
Pilot air supply Internal
Exhaust function Without flow control option
Manual override None
Type of control Piloted
Valve function 3/2-way valve, monostable, closed
Soft-start function
Medium
Operating medium Compressed air according to ISO 8573-1:2010 [7:4:4]
Note Lubricated operation possible, in which case lubric-
ated operation will always be required
Temperature
Medium [°C] –10…+50 (0…+50 with pressure sensor)
Environment [°C] –10…+50 (0…+50 with pressure sensor)
Bearing [°C] –10…+50 (0…+50 with pressure sensor)
Operating pressure
Operating pressure [bar] 3.5…10
Residual pressure in normal
operation
[bar] 0 (no residual pressure)
Residual pressure in the event
of error
[bar] £0.4 (at p1=10bar and flow control fully open)
C value [l/(sbar)] 19.3
B value [l/(sbar)] 0.21
Flow rate values
Standard nominal flow rate
1}2
[l/min] 4300 (at p1=6bar, p2=5bar)
Standard nominal flow rate
2}3
[l/min] 9000 (at p1=6bar)
Standard nominal flow rate
2}3 in the most critical error
case
[l/min] ³6000 (at p1=6bar)
Switch-through point Approx. 50%of p1
Filling flow Adjustable by flow control
Tab. 13 Technical data, pneumatic
Technical data
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