Festo MS6-SV-...-E-10V24 Series User manual

100188
Application Note
Quick Start Guide for fault clearance
and troubleshooting
This document is for self-help in case of malfunctions with the
product MS6-SV-*-E-10V24.
MS6-SV
MS6-SV-1/2-E-
10V24-AD1
MS6-SV-1/2-E-
10V24-SO-AG
MS6-SV-1/2-E-
10V24-AG

Title ...............................................................................Quick Start Guide for fault clearance and troubleshooting
Version ............................................................................................................................................................. 1.10
Document no. .............................................................................................................................................. 100188
Original .................................................................................................................................................................en
Author .............................................................................................................................................................Festo
Last saved ............................................................................................................................................ 11.10.2018
Copyright Notice
This documentation is the intellectual property of Festo AG & Co. KG, which also has the exclusive copyright. Any
modification of the content, duplication or reprinting of this documentation as well as distribution to third par-
ties can only be made with the express consent of Festo AG & Co. KG.
Festo AG & Co KG reserves the right to make modifications to this document in whole or in part. All brand and
product names are trademarks or registered trademarks of their respective owners.
Legal Notice
Hardware, software, operating systems and drivers may only be used for the applications described and only in
conjunction with components recommended by Festo AG & Co. KG.
Festo AG & Co. KG does not accept any liability for damages arising from the use of any incorrect or incomplete
information contained in this documentation or any information missing therefrom.
Defects resulting from the improper handling of devices and modules are excluded from the warranty.
The data and information specified in this document should not be used for the implementation of safety func-
tions relating to the protection of personnel and machinery.
No liability is accepted for claims for damages arising from a failure or functional defect. In other respects, the
regulations with regard to liability from the terms and conditions of delivery, payment and use of software of
Festo AG & Co. KG, which can be found at www.festo.com and can be supplied on request, shall apply.
All data contained in this document do not represent guaranteed specifications, particularly with regard to func-
tionality, condition or quality, in the legal sense.
The information in this document serves only as basic information for the implementation of a specific, hypo-
thetical application and is in no way intended as a substitute for the operating instructions of the respective
manufacturers and the design and testing of the respective application by the user.
The operating instructions for Festo products can be found at www.festo.com/sp.
Users of this document (application note) must verify that all functions described here also work correctly in the
application. By reading this document and adhering to the specifications contained therein, users are also solely
responsible for their own application.
(Festo AG & CO. KG, D-73726 Esslingen, 2018)
Internet: http://www.festo.com
E-Mail: [e-mail]

Table of contents
1Components/Software used ....................................................................................................................... 5
2Introduction ................................................................................................................................................ 6
3Troubleshooting ......................................................................................................................................... 7
3.1 Error codes .................................................................................................................................................. 7
4Specified switch-on sequence .................................................................................................................... 9
4.1 Operating pressure...................................................................................................................................... 9
4.2 Operating voltage...................................................................................................................................... 10
4.3 Enable signal ............................................................................................................................................. 10
4.4 Monitored start ......................................................................................................................................... 10
5Installation of MS6-SV ............................................................................................................................. 11
5.1 Layout ....................................................................................................................................................... 11
5.2 Wall gap .................................................................................................................................................... 11
5.3 Distance from base.................................................................................................................................... 11
5.4 Lines.......................................................................................................................................................... 11
5.5 Flow direction............................................................................................................................................ 11
5.6 Silencer ..................................................................................................................................................... 11
5.7 Installation location................................................................................................................................... 11
5.8 Earthing..................................................................................................................................................... 12
5.9 Signal lines................................................................................................................................................ 12
5.10 Multi-pin plug............................................................................................................................................ 12
6Requirements for the MS6-SV.................................................................................................................. 13
6.1 Compressed air quality.............................................................................................................................. 13
6.2 Operating voltage...................................................................................................................................... 13
6.3 Temperature.............................................................................................................................................. 13
6.4 Vibrations.................................................................................................................................................. 13
6.5 Self-test..................................................................................................................................................... 13
6.6 Shutdown .................................................................................................................................................. 13
6.7 Service life................................................................................................................................................. 13
7Specifications of the enable signals ........................................................................................................ 14
7.1 Malfunction of the EN signals.................................................................................................................... 14
7.2 MP1 plug connector .................................................................................................................................. 14
7.3 MP3 and MP5 plug connectors .................................................................................................................. 14
8Operational principle of the NECA multi-pin plug socket......................................................................... 16

Table of contents

Components/Software used
Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10 Seite 5 von 16
1Components/Software used
Type/Name
Version Software/Firmware
Date of manufacture
MS6-SV-1/2-E-10V24-AD1
--
All
MS6-SV-1/2-E-10V24-SO-AG
--
All
MS6-SV-1/2-E-10V24-AG
--
All
Table 1.1: Components/Software used

Introduction
Seite 6 von 16 Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10
2Introduction
The Quick Start Guide for the soft start/quick exhaust valve MS6-SV is intended as a manual for fast and expert
troubleshooting in the event of malfunctions.
More detailed information can be found in Operating instructions
Mobile access to the operating instructions
Figure 2.1: QR-Code Operating Instructions
The following pages describe the process of analyzing and remedying faults. The technical prerequisites and spec-
ifications for safe operation of the component are also discussed.

Troubleshooting
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3Troubleshooting
3.1 Error codes
In case of malfunction of the MS6-SV check the LED display. Error codes are read by the flashing of the LED. The
error code is indicated by four flashes of the green LED (speed 2 hertz). Then the flashes of the red LED display
the error code.
Note
The number of flash pulses displays the error code.
Error code
Possible cause
Remedy
2
Bouncing on the enable signals
Make sure that only debounced contacts are used
(e.g. for protective guards or doors).
5
Power supply is insufficient, voltage
drops, tolerance out of range
Ensure that the power supply is sufficient.
6
Pressure supply was interrupted
Re-establish compressed air supply
Compressed air interrupted during self-
test
Air supply on secondary side too high
(effect: pilot pressure drops)
Check compressed air supply and close actuators
(blowing air, vacuum suction nozzle)
8
Enable signals outside the specification
Comply with specification
(chapter 6 in this script)
Multi-pin plug socket NECA or cable is
defective
Check Multi-pin plug socket NECA or cable and re-
place if defective (chapter 7)
8 or 11
PLC emits test pulses that are off-set to
the enable signals (length 4 ms)
–Switch off test pulses
–Use NECA MP5 plug connector
Malfunction due to electrical or electro-
magnetic effects (EMC notes not com-
plied with)
–Comply with max. length of the signal lines
–Connect earthing correctly
–Observe min. wall distance
–Do not install cables behind the MS6-SV
–(chapter 4 in this script)
Table 1: Explanation error codes
Error code
"red LED"
Status display
"green LED"

Troubleshooting
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Note
Other possible errors: possible valve errors that are not or only partly indicated by error codes are
listed below.
Possible error
Possible cause
Remedy
Valve does not switch
Pressure supply insufficient
Tighten flow control screw
--
No bridge between contacts 5
and 6 or the contact is faulty
Check bridge
Continuous outflow to
port 3
Flow direction ignored
Specify operating pressure at port 1
Pressure p1 collapses
briefly at every switching
operation
The cross-section of the MS6-SV
pressure supply is too small
–Tighten flow control screw
–Check volume before inlet 1
–Adjust compressed air supply, e.g. increase
cross-section of the supply cable
Flow control valve is opened too
wide
Valve does not switch alt-
hough green LED is on
(only on systems with a
monitored start)
EN signal was set successfully but
the pulse from the additional
start pushbutton was not sent or
was interrupted
Check pushbutton and lines
Table 2: Further possible errors

Specified switch-on sequence
Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10 Seite 9 von 16
4Specified switch-on sequence
The specified sequence during start-up is essential for fault-free operation and must be followed at all times.
Further information
•Operating pressure
•Compressed air quality
•Operating voltage (switch-on sequence)
•Operating voltage (specification)
•Enable signal
•Specifications of the enable signals
•Operational principle of the NECA multi-pin
plug socket
4.1 Operating pressure
The operating pressure must be between 3.5 and 10 bar. Avoid pressure drop or pressure fluctuations. Short-term
pressure drop when switching on due to a line cross-section that is too small or excessive air consumption before
the MS6-SV may cause malfunction. A sufficient compressed air supply is required for the function of the pilot
valves. If the supply is not sufficient, the valve will output error code 6.
Note
It is important always to apply the operating pressure first during start-up of the system.
Operating pressure
3,5 to 10 bar
Yes
No
Check pressure
supply
Operating voltage
24 V DC +/- 10%
Yes
No
Only when the LED flashes green is the valve ready
for operation and the next step can take place.
Enable signal
Observe specification
Valve ready for operation and connected
through
LED lights green
Check supply
voltage
Check enable
signals
Yes
No
Fig. 1: Switch-on sequence

Specified switch-on sequence
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4.2 Operating voltage
If the pressure is on, the operating voltage can be switched on. After switching on the operating voltage the valve
runs a self-test. The red and green LEDs light for approx. 6 s during the test. If the self-test is completed, the green
LED flashes (speed 1 hertz) and displays ready for operation.
4.3 Enable signal
If operating pressure and operating voltage are applied to the valve, the enable signals can be generated. (More
detailed information on this can be found in chapter 5 in this script and in the operating instructions in Section 5).
4.4 Monitored start
If your system is fitted with an additional manual start pushbutton, make sure that the pulse of the pushbutton is
between 0.1 s and 2 s. The start pulse must not be received by the valve until 1 s after the enable signals, otherwise
it will not be acknowledged.

Installation of MS6-SV
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5Installation of MS6-SV
What should be noted when installing the MS6-SV?
5.1 Layout
With reference to the air preparation the MS6-SV must be specified as a final module in the service unit. This will
ensure that the compressed air quality required for the MS6-SV is maintained and the safe venting of the system
is not affected by the service unit.
5.2 Wall gap
The gap between the wall and the MS6-SV must be a minimum of 32 mm. (Note: Festo MS6-WPB and MS6-WPE
mounting bracket)
5.3 Distance from base
The distance between the silencer and the base must be a minimum of 15 mm.
Fig. 2: Installation
5.4 Lines
Lines must not be routed between the wall and valve.
5.5 Flow direction
The standard flow direction of the MS6-SV is from inlet 1 to outlet 2. The flow direction is opposite on valves with
the ending "Z" on the name plate. If the ports are reversed, the compressed air will be blown out at port 3.
5.6 Silencer
The silencer must be installed on port 3 only. Otherwise, the port must not be closed at any time. The high flow
rate performance of the MS6-SV only allows use of the silencer specified by Festo.
5.7 Installation location
The recommended installation location should be as close as possible to the actual system.

Installation of MS6-SV
Seite 12 von 16 Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10
5.8 Earthing
The MS6-SV earthing strap must be correctly installed. The screw attachment areas must be freed from paint to
ensure a good contact. A toothed disc is specified between the screw attachment area and earthing strap and
between the earthing strap and screw head. The earthing of the valve is designed to protect the component from
electromagnetic interference (EMC).
Fig. 3: Earth cable connection
5.9 Signal lines
The signal lines must not be longer than 20 m to ensure adequate signal quality.
5.10 Multi-pin plug
•Only the multi-pin plug specified by Festo may be used on the MS6-SV. The plug connector is an electronic
component of the valve. It contributes to the overall function and must not be replaced by other plug
connectors.
•Make sure that the plug connector is correctly oriented when connected and is then screwed in place. The pins
must not be bent under any circumstances. Defective connector sockets in the valve cannot be replaced for
safety reasons.
Fig. 4: Figure NECA plug

Requirements for the MS6-SV
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6Requirements for the MS6-SV
Which requirements must be fulfilled?
6.1 Compressed air quality
The compressed air quality is very important!
Ester oils or moisture in the compressed air may damage the MS6-SV. Particles, rust and similar impurities will
also affect the reliability of any compressed air system.
6.2 Operating voltage
The supply voltage of 24V +/- 10% at a maximum current consumption 1A must be guaranteed.
6.3 Temperature
The ambient temperature of the MS6-SV must be maintained between 0 and 60 degrees Celsius.
If a pressure sensor is installed, the maximum temperature is reduced to 50 degrees Celsius.
6.4 Vibrations
Vibrations conforming to severity class 2 are permissible.
6.5 Self-test
If the MS6-SV is not connected, the valve runs a self-test once every hour. If there is no compressed air supply at
this time, the valve switches to fault mode. (error code 6)
6.6 Shutdown
The safety valve must be shut down once a month to ensure that the shutdown function is guaranteed in case of
emergency.
6.7 Service life
The MS6-SV is an on/off valve with a B10 value of 900,000 switching cycles. The specified value is based on an
operating pressure of 6 bar. Higher pressures will reduce the service life.

Specifications of the enable signals
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7Specifications of the enable signals
The MS6-SV is switched by the enable signals.
The signal quality, the signal length and the spacing between them are all important.
7.1 Malfunction of the EN signals
Please note that test pulses from the controller that do not have a standardised length may cause a malfunction
of the valve. Test pulses with a length of 4 ms cannot be evaluated by the valve.
For example, the Siemens ET200S output module sends a signal with a length of 4 ms, which causes a malfunction
(FC 8 or FC 11).
7.2 MP1 plug connector
•The spacing between the EN1 and EN2 signals must be less than 75 ms.
•The EN1 and EN2 switch-on signals must be a minimum of 5 ms, otherwise they are not recognised as a usable
signal.
•The interruption of a signal for shutdown must be a minimum of 15 ms, otherwise the valve will not be
exhausted.
Fig. 5: Switching characteristic MP1 plug
The sequence of the enable signals is not relevant. The diagram shows that EN2 is applied before EN1. However,
the principle with EN1 before EN2 is the same.
Further information regarding cross-circuit detection with the MP1 plug type with a safety switching device can be
found in the operating instructions in Section 4.
7.3 MP3 and MP5 plug connectors
•The spacing between the EN1 and EN2 signals must be less than 75 ms.
•The EN1 and EN2 switching signals must be a minimum of 5 ms, otherwise they are not recognised as a usable
signal.
•The interruption of a signal for shutdown must be a minimum of 15 ms, otherwise the valve will not be
exhausted.

Specifications of the enable signals
Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10 Seite 15 von 16
Fig. 6: Switching characteristic MP3 and MP5 plug
The sequence of the enable signals is not relevant. The diagram shows that EN2 is applied before EN1. However,
the principle with EN1 before EN2 is the same.
Information on the cross-circuit detection can be found in Section 4.

Operational principle of the NECA multi-pin plug socket
Seite 16 von 16 Application Note –Quick Start Guide for fault clearance and troubleshooting –1.10
8Operational principle of the NECA multi-pin plug socket
Use only the original Festo multi-pin plug. The plugs are electronic components that contribute to the overall
function of the system and cannot be replaced by other plug connectors.
Enable signal status
MS6-SV-E-10V24 with multi-pin plug socket status
EN1
EN2
MP1
MP3
MP5
0V
0V
Unpressurized
Valve switches to
fault mode
Valve does not
switch to fault mode,
but remains in the
safe, unpressurized
status
0V
24V
Valve
switches to fault
mode
Pressurized
Pressurized
24V
24V
Pressurized
Valve switches to
fault mode
Valve does not
switch to fault mode,
but remains in the
safe, unpressurized
status
24V
0V
Valve
switches to fault
mode
Unpressurized
Unpressurized
Table 3: State Enable signals and reactions of the valve