Festo MS6(N)-SV-...-C User manual

Soft-start/quick exhaust
valve MS6(N)-SV-...-C
Festo AG & Co. KG
Postfach
73726 Esslingen
Deutschland
[phone]
www.festo.com
Operating instructions
(Original instructions)
8068793
1702a
[8068795]
Soft-start/quick exhaust valve MS6(N)-SV-...-C English.....................
1 Applicable documents
For all available product documentation èwww.festo.com/pk
2 Product description
2.1 Control sections and connections
1
2
3
4
5
6
7
8
9
1Manual override at the pilot solen
oid valve1)
2Pilot solenoid valve
3Pneumatic port 1 (compressed air
inlet)
4Pneumatic port 3 (exhaust)
5Silencer
6Adjusting screw for setting the
pressure switching point
(èFig. 13)
7Flow control screw for setting the
filling time
8Manual override at the soft-start/
quick exhaust valve2)
9Pneumatic port 2 (compressed air
outlet)
1) -10V24/-10V24P: non-detenting, actuation from the top
-V24/-V24P/-V110/-V230: non-detenting/detenting, actuation from the front
2) detenting/self-resetting
Fig. 1 Control sections and connections
2.2 Features
Features Type Specification
Series MS Standard service unit
Size 6 Grid dimension 62 mm
Thread type –Pipe thread ISO 228
NNPT
Function -SV Soft-start/quick exhaust valve
Connection size -1/2 Thread G½
-AGB Connecting plate G¼
-AGG Sub-base GÅ
-AGD Connecting plate G½
-AGE Connecting plate G¾
-AQN Connecting plate N¼
-AQP Sub-base NÅ
-AQR Connecting plate N½
-AQS Connecting plate N¾
Performance level -C in accordance with EN ISO 138491
Supply voltage -V24 24 V DC (connection arrangement in accordance with
EN 175301)
-V24P 24 V DC with M12 plug socket adapter
-10V24 24 V DC (pin allocation in accordance with EN 175301), 10
bar
-10V24P 24 V DC (M12 in accordance with IEC 610762101), 10 bar
-V110 110 V AC (connection arrangement in accordance with
EN 175301)
-V230 230 V AC (connection arrangement in accordance with
EN 175301)
Options -S Silencer
Tamper protection -MK Cover – adjusting screws pressure switching point (PSP)
and main throttle (MT), manual override (MO)
Fig. 2 Overview of variants
3 Function and application
The MS6(N)-SV-...-C electro-pneumatic soft-start/quick exhaust valve is intended
solely for reducing pressure quickly and safely and for building up pressure gently
in pneumatic piping systems and terminal equipment in industry.
Symbol Function
Soft-start/quick exhaust valve, electro-pneumatically actu
ated
Fig. 3 Circuit symbol of the functions
The product is intended for installation in machines or automated systems and
may be used only in the following ways:
– in industrial applications
– within the limits of the product defined through the technical data
(è14 Technical data)
– in its original status, without unauthorised modifications
– in perfect technical condition
3.1 Foreseeable misuse
Foreseeable misuse includes:
– use outdoors
– use as a press safety valve
– use in the non-industrial area/residential area
– use outside the limits of the product defined in the technical data
– unauthorised modifications
– bypassing of the safety function
– use in reversible operation (reversal of supply and exhaust air)
– “low demand mode” in accordance with EN 61511 or vacuum operation
Note
In the event of damage caused by unauthorised manipulation or use other than
that intended, the guarantee is invalidated and the manufacturer is not liable for
damages.
4 Prerequisites for use
 Make these operating instructions available to the design engineer and installer
of the machine or system in which this product will be used.
 Keep these operating instructions during the entire product life cycle.
 Observe the rules/information of the trade association, the VDE specifications
and relevant national regulations at the location of use.

4.1 Technical requirements
General conditions for the correct and safe use of the product, which must be
observed at all times:
 Maintain the specified limits (e.g. for pressures, temperatures and electric
voltages).
 Make sure there is a supply of correctly prepared compressed air in accordance
with the specifications on the medium.
 Before mounting, remove particles in the supply lines through appropriate
measures. In this way, you protect the product from premature failure and high
er wear.
 Pressurize your entire system slowly. This allows avoidance of abrupt move
ments.
 Observe the warnings and instructions in these operating instructions.
 Use the product in its original state, without any unauthorised product modifica
tions.
4.2 Qualification of trained personnel
Installation, mounting, commissioning, maintenance, repair and removal from
operation may only be performed by qualified personnel with knowledge and ex
perience with electrical and pneumatic control technology.
4.3 Range of application and certifications
The products MS6(N)-SV-...-C-V110-... and MS6(N)-SV-...-C-V230-... fulfil
requirements of EC directives and are equipped with the CE marking.
Standards and test values, which the product must comply with and fulfil, can be
found in the section “Technical data”. The product-relevant EC directives can be
obtained from the declaration of conformity in the internet.
èwww.festo.com
4.4 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 60204-1:2006-06 Safety of machinery - electrical equipment of machines
Part 1: General requirements
EN ISO 4414:2010-11 Fluid engineering - general rules and safety-related requirements
for pneumatic systems and their components
Fig. 4 Standards
4.5 Service
Please consult your local Festo repair service if you have any technical problems.
5 Assembly and installation
5.1 Mechanical
Note
Information about mounting of module connectors, sub-bases and mounting
brackets can be found in the operating instructions enclosed with the relevant
accessories.
 Place the MS6(N)-SV-...-C as close as
possible to the location of use.
 Place the MS6(N)-SV-...-C in such a
way that you have sufficient space
for a silencer.
 The retainer can be fitted in any posi
tion.
 Observe the flow direction from 1 to
2. The numerals 1on the product
housing serve as an orientation.
Fig. 5 Flow direction
1
Combination with service units of the MS series
1. Remove the cover cap MS6-END 1,
if on hand, from the side to be com
bined (push upwards).
2. Place the module connectors
MS6-MV 3in the grooves of the in
dividual devices. A seal 2is re
quired between the individual
devices.
3. Secure the module connectors
MS6-MV with 2 screws (scope of de
livery MS6-MV).
Fig. 6 Assembly
max. 1.2 Nm
1
2
3
5.2 Pneumatic
Port 1 and 2
If using fittings:
 Observe the maximum permissible screw-in depth of the connecting threads:
ISO 228 NPT
MS6-...-½:10 mm MS6N-...-½:10 mm
Fig. 7 Max. screw-in depth
 Make sure that the compressed air lines are connected correctly.
 Screw the connectors into the pneumatic ports using suitable sealing material.
Port 3 (thread size G¾or NPT¾)
When exhausting a system through the MS6(N)-SV-...-C, high sound pressure
levels are generated. We therefore recommend that you use a silencer.
 Screw the silencer into the pneumatic port 3.
 Make sure that there is unrestricted exhausting. Neither the silencer nor port 3
should be blocked.
6 Electrical connection
Warning
Electrical connections should be established only in the absence of voltage and
by qualified personnel.
Warning
Use only power sources which guarantee reliable electrical isolation of the oper
ating voltage in accordance with IEC/EN 60204-1. Consider also the general
requirements for PELV circuits in accordance with IEC/EN 60204-1.
Note
Long signal lines reduce the resistance to interference.
 Make sure that the signal cables are not longer than 20 m.
7 Commissioning
To start up the device, proceed as follows:
1. Apply operating pressure p1.
2. Switch on the supply voltage.
The output pressure p2 is built up slowly. The filling time “t” is set through the
flow control screw attached to the cover. The output pressure rises correspond
ing to the set throttle point (èFig. 12). If the preset pressure switching point
(PSP) is reached, the main seat of the valve opens (èFig. 13).
The MS6(N)-SV-...-C is then ready for operation.
No further settings are required.
Tamper protection
To prevent a manipulation of the settings, setting and control elements can be
equipped with a cover è12 Accessories.

8 Operation
Note
Exhaust with a voltage drop
9 Maintenance and care
 Switch off the following sources of energy before cleaning the exterior of the
device:
– Operating voltage
– Compressed air
 If needed, clean the MS6(N)-SV-...-C from outside.
Soap suds (max. +50 °C), petroleum ether and all non-abrasive cleaning agents
may be used.
10 Disassembly
Note
Residual pressure must be eliminated.
1. Switch off the following sources of energy before dismantling:
– Operating voltage
– Compressed air
2. Separate the respective connections from the MS6(N)-SV-...-C.
11 De-commissioning and disposal
In coordination with the waste management company, the product can be com
pletely disposed of through metal recycling (e.g. EAK 17 04 02). If necessary, the
solenoid valve is dismantled and disposed of separately in electronic scrap recyc
ling (EAK 16 02 16).
12 Accessories
Designation Type
Silencer U-¾-B
Cover1) MS6-SV-C-MK
1) covers pressure switching point, main throttle and manual override
Fig. 8 Accessories
Please select the appropriate accessories from our catalogue.
èwww.festo.com/catalogue
13 Troubleshooting
Malfunction Possible cause Remedy
Valve switches abruptly Pressure switching point too
low, flow control valve opened
too wide
Correct settings
Valve does not switch Pressure switching point too
high, flow control valve not
opened widely enough
Correct settings
Fig. 9 Troubleshooting
14 Technical data
14.1 Safety-related characteristics
MS6(N)-SV -10V24
-10V24P
-V24
-V24P
-V110 -V230
Safety function Venting
Performance Level (PL) Venting: up to category 1, PL c
Max. pos. test pulse at logic 0 [μs] 1800 2000 – –
Max. neg. test pulse at logic 1 [μs] 800 1900 – –
Venting time [s] èFig. 14 Venting time
CE marking (see declaration of conformity) –To EU Low Voltage
Directive
Fig. 10 Safety-related characteristics
14.2 General data
Type MS6-SV-...-C MS6N-SV-...-C
Pneumatic connection 1 Connection sizes èFig. 2 (with accessories)
Pneumatic connection 2 Connection sizes èFig. 2 (with accessories)
Pneumatic connection 3 G¾NPT¾
Type of mounting In-line installation
With accessories
Mounting position Any
Design Piston slide
Actuation type Electric
Exhaust function No flow control
Manual override
(on the pilot solenoid valve)
10V24/10V24P: non-detenting
V24/V24P/-V110/-V230: non-detenting/detenting
Manual override
(on the soft-start/quick exhaust valve)
detenting/self-resetting
Type of control piloted
Valve function 3/2-way valve, monostably closed, pressure built-
up function adjustable
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on operating medium Operation with lubricated medium possible (in
which case lubricated operation will always be re
quired)
Operating pressure p1 [bar] 3 … 181)
Pressure switching point [bar] adjustable èdiagram Fig. 13
Venting flow rate adjustable through flow control valve èdiagram
Fig. 12
C-value 1 }2 [l/(s*bar)] -1/2: 23.2
C-value 2 }3 [l/(s*bar)] -1/2: 25.6
b-value 1 }2 -1/2: 0.4
b-value 2 }3 -1/2: 0.4
Standard nominal flow rate
1 }2
[l/min] 5700
Standard flow rate 2 }3 [l/min] 76002)
Ambient temperature [°C] 0 … +60 (0 … +50 with pressure sensor)
Temperature of medium [°C] 0 … +60 (0 … +50 with pressure sensor)
Storage temperature [°C] –10 … +60 (0 … +50 with pressure sensor)
Shock resistance Shock test with severity level 1 according to
FN 942017-5 and EN 60068-2-27
Vibration resistance Transport application test with severity level 1 to
FN 942017-4 and EN 60068-2-6
Electrical connection -V24: Plug, 2-pin, to EN 175301-803
Type C
-V24P: M12x1, 2-pin, to EN 60947-5-2
-10V24: Plug, 2-pin, to EN 175301-803
Type C
-10V24P: M12x1, 2-pin, to IEC 61076-2-101
-V110/
-V230:
Plug, 3-pin, to EN 175301-803
Type C
Coil characteristics -V24 24 V DC, 1.5 W
-V24P: 24 V DC, 1.5 W
-10V24: 24 V DC, 2.5 W
-10V24P: 24 V DC, 2.5 W
-V110: 110 V AC 50/60 Hz:
pick-up power 3 VA, holding capacity
2.4 VA
-V230: 230 V AC, 50/60 Hz:
pick-up power 3 VA, holding capacity
2.4 VA
Permissible voltage fluctu
ation
[%] ±103)
Sound pressure level4) [dB(A)] 93
Protection class IP65 with plug socket
Housing material information Die-cast aluminium
Cover material information PA
Lower cover material information PA
Seals material information Nitrile rubber
Product weight [g] 8865)
1) -10V24P/-10V24: 3 … 10 bar
2) measured at p1 = 6 bar with silencer U-¾-B
3) -V230: –14%/+10%
4) maximum A-weighted impulse sound pressure level at the loudest measuring point when venting the
valve with silencer U-¾-B
5) with silencer: 1006 g
Fig. 11 General data

14.3 Venting flow rate
Flow rate qn dependent on the number of revolutions n of the main throttle screw
(HD)
p1: 6 bar
Fig. 12 Flow diagram
14.4 Pressure switching point
With the main throttle (MT) located in the cover, a slower pressure build-up of
output pressure p2 is achieved. If the output pressure p2 has reached the switch-
through pressure, the valve opens and the complete operating pressure p1 is ap
plied at the output. The pressure switching point can be set by turning the adjust
ing screw for the pressure switching point (PSP).
1
2
1PSP maximum 2PSP minimum
Fig. 13 Pressure switching point
14.5 Venting time
The following table shows the venting time in normal operation (N) with silencer
U-¾-B at various volumes and operating pressures.
Normal opera
tion N
Operating
pressure
3 bar
Operating
pressure
6 bar
Operating
pressure
10 bar
Operating
pressure
18 bar
Venting time [s] Venting time [s] Venting time [s] Venting time [s]
at
1.0 bar
at
0.5 bar
at
1.0 bar
at
0.5 bar
at
1.0 bar
at
0.5 bar
at
1.0 bar
at
0.5 bar
Volume [l] 2 0.4 0.5 0.5 0.6 0.6 0.7 0.7 0.8
10 0.6 0.8 0.9 1.1 1.1 1.3 1.4 1.6
20 0.9 1.3 1.5 1.9 1.9 2.9 3.5 3.0
40 1.5 2.2 2.6 3.4 3.4 4.3 4.5 5.5
Fig. 14 Venting time