Soft-start/quick exhaust valve
MS6(N)-SV-...-C
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
Operating instructions
(Translation of the original instructions)
8084750
2018-02c
[8084752]
Soft-start/quick exhaust valve MS6(N)-SV-...-C
English
. . . . . . . . . . . . . . . . . . . . .
1
About this document
This document describes the use of the above-mentioned product.
The document contains additional information for use of the product in
safety-related systems (safety handbook in accordance with IEC 61508).
1.1 Further applicable documentation
– Assembly instructions for cover (tamper protection) MS6/9-SV-C-MK/MH
For all available product documentation
è
www.festo.com/pk
1.2 Target group
The document is targeted towards persons who assemble and operate
the product. It is additionally targeted towards individuals who are entrusted with
the planning and application of the product in a safety-related system.
1.3 Specified standards
Version status
IEC 61508-2:2010-04
EN ISO 13849-1:2015-12
EN 60204-1:2006-06/A1:2009-02 + AC:2010-02
EN ISO 13849-2:2012-10
EN ISO 4414:2010-11
EN 1037/A1:2008-04
Fig. 1
Standards
2
Safety
2.1 Safety instructions
– Only use the product in its original condition without unauthorised modifications.
– Only use compressed air as an operating medium in accordance with the spe
cification
è
13 Technical data.
2.2 Intended use
The product is intended for installation in machines or automated systems and
may be used only in the following ways:
– in an industrial environment
– in its original condition, without unauthorised modifications
– in safety-related systems, only with cover (tamper protection) MS6-...-MK
– in perfect technical condition
2.3 Foreseeable misuse
Foreseeable misuse includes:
– use outdoors
– bypassing of safety functions
– use in reversible operation (using supply air instead of exhaust air, and vice
versa)
– use in low demand mode in accordance with EN 61511
– vacuum operation
2.4 Training of specialized personnel
Installation, mounting, commissioning, maintenance, repair and removal from
operation may only be performed by qualified specialized personnel with know
ledge of and experience with electrical and pneumatic control technology.
2.5 Further information
Accessories
è
www.festo.com/catalogue
Designation
Type
Silencer
U-
¾
-B
Cover (tamper protection)
1)
MS6-SV-C-MK
1)
For covering setting and control elements
Fig. 2
Accessories
2.6 Service
Contact your regional Festo contact person if you have technical questions
è
www.festo.com.
3
Information on functional safety
3.1 Attainable safety rating
The product is suitable for use as an element in a safety-related system in accord
ance with EN ISO 13849-1
up to category 1, performance level (PL)
c
.
Note
The suitability for certain applications can only be determined in connection with
the assessment of further components of the subsystem.
3.2 Safety functions
The safety functions are:
– safe venting in the downstream piping system and terminals
– prevention of unexpected start-up (pressurisation)
The safety functions are triggered by switching off the power supply at the pilot
solenoid valve. As long as the voltage at the pilot solenoid valve remains switched
off, the connection between ports 2 and 3 is enabled
è
Fig. 5.
This switching position represents the safe state.
3.3 Operating conditions
– General notes on safe operation
è
2 Safety.
– Ambient conditions and additional technical specifications
è
13 Technical data.
Note
Actuate the product at least once per month to ensure the safety function
works properly.
3.4 Limitations of use
The duration of use is limited to the maximum operating time T
10d
or is no more
than the mission time T
M
è
Fig. 3.
3.5 Characteristic values
Safety characteristic
(in accordance with IEC 61508)
Value
MS6(N)-SV-...-C
-10V24
-10V24P
-10V24C
-10V24D
-V24
-V24P
-V110
-V230
Safety function
(Safety Function)
Exhausting
Prevention of unexpected start-up
(pressurisation) in accordance with
EN 1037/A1
Note on forced checking procedure
1)
Switching frequency at least 1/month
Performance level (PL) in accordance with EN ISO
13849-1
Up to category 1, PL c
2)
Service life value
B
10
1.2 million switching cycles
Mission time
T
M
[a]
20
Maximum operating time
T
10d
[a]
2 x B
10
/n
op
or max. T
M
Diagnostic coverage
(Diagnostic Coverage)
DC
0
Hardware fault tolerance
(Hardware Fault Tolerance)
HFT
0
Element type in accordance with EN 61508-2
Type A
Average probability of dangerous
failure per hour
(Average probability of dangerous
failure per hour)
PFH
d
è
Fig. 4
Max. positive test pulse with logic 0
[μs]
1000
2000
–
–
Max. negative test pulse with logic 1
[μs]
800
1900
–
–
Exhaust time
[s]
è
Fig. 15
CE marking (see declaration of conformity)
è
www.festo.com/sp
In accordance with EU Machinery Directive
–
In accordance with
Low Voltage
Directive
1)
Use in low demand mode is not permissible.
2)
Applies up to the average number of operations per year (n
op
) = 630,000
Fig. 3
Safety characteristics
