Samson 3930 Service manual

Translation of original instructions
EB 3930 EN
Edition October 2020
Type 3930 Solenoid Valve

Definition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
EB 3930 EN
Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
([e-mail]).
Documents relating to the device, such as the mounting and operating
instructions, are available on our website at www.samsongroup.com >
Service & Support > Downloads > Documentation.

Contents
EB 3930 EN
1 General safety instructions.............................................................................4
1.1 Legal information...........................................................................................4
2 Markings on the device .................................................................................5
2.1 Nameplate ....................................................................................................5
2.2 Article code...................................................................................................6
3 Design and principle of operation ..................................................................7
3.1 Technical data ...............................................................................................8
3.2 Dimensions in mm..........................................................................................9
4 Mounting and start-up.................................................................................10
4.1 Mounting position........................................................................................10
4.2 Conversion from 5/2-way to 3/2-way function..............................................10
4.3 Mounting on rotary actuators........................................................................12
4.4 Attachment to linear actuators using an adapter plate.....................................13
5 Pneumatic connection ..................................................................................14
5.1 Sizing of the connecting line .........................................................................14
5.2 Compressed air quality.................................................................................14
6 Electrical connection ....................................................................................15
6.1 Sizing of the connecting line .........................................................................15
6.2 Manual override..........................................................................................15
7 Malfunctions ...............................................................................................16
8 Disposal......................................................................................................17
9 Accessories .................................................................................................17

4 EB 3930 EN
General safety instructions
1 General safety instructions
− The device is to be mounted, started up or operated only by trained and experienced
personnel familiar with the product.
According to these mounting and operating instructions, trained personnel refers to indi-
viduals who are able to judge the work they are assigned to and recognize possible dan-
gers due to their specialized training, their knowledge and experience as well as their
knowledge of the applicable standards.
− Any hazards that could be caused in the control valve by the process medium, the signal
pressure or by moving parts are to be prevented by taking appropriate precautions.
− The pilot supply pressure must not exceed the maximum permissible limit and must be
limited by a pressure reducing valve, if necessary.
− If inadmissible motions or forces are produced in the pneumatic actuator as a result of
the supply pressure, it must be restricted using a suitable supply pressure reducing sta-
tion.
− Proper shipping and storage are assumed.
1.1 Legal information
TheType3930SolenoidValvebearsaCEmarking.Thedeclarationofconformityincludes
information about the applied conformity assessment procedure.

EB 3930 EN 5
Markings on the device
2 Markings on the device
2.1 Nameplate
1 Article code
2CongurationID
3 Serial number
Solenoid valve 3930
SAMSON AG, Germany
Made in Germany
Model 3930 -
Air supply max. 10 bar/150 psi
1
Serial no.
Var.-ID
2
3

6 EB 3930 EN
Markings on the device
2.2 Article code
Solenoid valve Type3930- 000x3x00100000000
Nominal signal
24VDC 3
230VAC 5
Manual override
Switch (accessible using a screwdriver) 3
Switching function
3/2-way function 0
5/2-way function 1
Attachment
NAMURinterface¼“accordingtoVDI/
VDE3845 0
KVScoefcient
0.85 0
Pneumatic connection
G¼ 1
Enclosure material
Aluminum 0
Electrical connection
ConnectoraccordingtoDINEN175301-803,
typeB,3-pole(withoutcablesocket) 0
Degree of protection
IP65 0
Permissible ambient temperature
–10to+60°C 0

EB 3930 EN 7
Design and principle of operation
3 Design and principle of oper-
ation
TheType3930SolenoidValveissuitablefor
controlling pneumatic rotary actuators with
NAMURinterfaceaccordingtoVDI/
VDE3845.
The principle of operation is based on a so-
lenoid plunger system with a downstream
spool-type poppet valve. When the solenoid
coil is energized, the solenoid plunger is lift-
ed and opens the connection for the pilot
control of the poppet valve. The pressure
suppliedoverport1causestheswitchingof
the poppet valve.
TheType3930SolenoidValveimplements
3/2-way or 5/2-way functions with KVS
0.85 (see Fig.1) depending on the version.
2
13
1
2
3
4
5
5/2-way function
3/2-way function
Fig.1: Switching functions

8 EB 3930 EN
Design and principle of operation
3.1 Technical data
General data
Design Solenoid and spool valve with return spring
Switching function 3/2 or 5/2-way function
Actuation Pilot-operated on one side
Material Enclosure: black polyamide (solenoid) and aluminum (valve body)
Internal parts: stainless steel and brass
Screws: zinc-plated steel
Short-circuit ring: copper
Gaskets: nitrile butadiene rubber
Degree of protection IP65(withmountedcablesocket)
Mounting NAMURinterface¼“accordingtoVDI/VDE3845
Mounting position Any desired position
Ambient temperature –10to+60°C
Approx. weight 0.42kg
Electric data
Nominal signal 24VDC(±10%)or230VAC(±10%),othernominalsignalsonrequest
Power consumption 3W(DC),5VA(AC)
Duty cycle 100%
Connection ConnectoraccordingtoDINEN175301-803,typeB,3-pole
Pneumatic data
Medium Instrument air (free from corrosive substances)
Medium temperature +5to+80°C
Compressed air quali-
ty according to
ISO8573-1
Max. particle size and density: Class 4 · Oil content: Class 3 · Pressure dew
point:Class3oratleast10Kbelowthelowestambienttemperaturetobeex-
pected
KVS 1) 0.85
Output signal Same as the operating pressure
Operating pressure 2.5to10bar
Connection ThreadedconnectionG¼andNAMURinterface¼“accordingtoVDI/
VDE3845
1) Theairowratewhenp1=2.4barandp2=1.0bariscalculatedusingthefollowingformula:
Q = KVS x 36.22 in m³/h.

EB 3930 EN 9
Design and principle of operation
3.2 Dimensions in mm
149
107
55
24
32
40
98.5
25
12
44
22
22
NAMUR interface ¼“
accordingtoVDI/VDE3845
Manual override
Type B connector
accordingtoDINEN175301-803
Cap screw
DINENISO4762
M5x25
Connecting thread
DINENISO228/1G¼
O-ring14x1.8

10 EB 3930 EN
Mounting and start-up
4 Mounting and start-up
SAMSON solenoid valves are delivered
ready for use. In special cases, the solenoid
and valve body are delivered separately and
must be assembled on site. Proceed as fol-
lows to mount and start up the solenoid
valve.
4.1 Mounting position
Any mounting position may be used. The fol-
lowing applies concerning the installation:
ÎThe cable entries must face downward
or, in cases where this is not possible,
mount them in the horizontal position.
4.2 Conversion from 5/2-way
to 3/2-way function
The solenoid valve can be converted from a
5/2-way to a 3/2-way function or vice ver-
sa. Proceed as described below to convert
the solenoid valve (see Fig.2):
ÎUnscrew both slotted-head screws A and
B.
ÎRemove the seal and insert it into the
hole for the corresponding function (see
Fig.2).
ÎRe-insert the two slotted-head screws into
the enclosure and tighten them.
The location of the supply air connection 1 is
changed by turning the seal.
NOTICE
!

EB 3930 EN 11
Mounting and start-up
42
AB AB
13 31
2
5-way 3-way
Unused
Unused
Plug without
seal
Plug with
seal
Plug with
seal
Plug without
seal
Fig.2: Conversion from 5/2-way to 3/2-way function

12 EB 3930 EN
Mounting and start-up
4.3 Mounting on rotary actuators
These devices can be mounted to rotary actuators with NAMUR interface without additional
mounting parts (see Fig.3).
Beforemounting,checkthattwoO-ringsareseatedproperly.Usetwoscrewstomountthe
device.
32
24
Fig.3: Rotary actuator with NAMUR interface

EB 3930 EN 13
Mounting and start-up
4.4 Attachment to linear actuators using an adapter plate
These devices can be mounted to linear actuators with a NAMUR rib using an adapter plate
(orderno.1400-6751).SeeFig.4.
60
92
30
Fig.4: Adapter plate (item no. 1400-6751) with NAMUR interface and NAMUR rib

14 EB 3930 EN
Pneumatic connection
5 Pneumatic connection
Risk of injury due to high pressure inside de-
vice.
Prior to performing repair and maintenance
work on the device, depressurize the con-
necting lines.
The air connections are designed as thread-
edholeswithG¼threadorNAMURinter-
faceaccordingtoVDI/VDE3845,depend-
ing on the device version.
ÎRun and attach the connecting lines and
screw joints according to good profes-
sional practice.
ÎCheck the connecting lines and screw
joints for leaks and damage at regular
intervals and repair them, if necessary.
ÎProtect the exhaust air connections by in-
stallingalterortakingotherappropri-
ate precautions to prevent water or dirt
from entering them.
ÎThe KVScoefcientofanupstreampres-
sure reducing valve must be at least 1.6
times larger than the KVScoefcientof
the device.
Port labeling
Inscription Function
1 Supply air
2/4 Output
3/5 Exhaust
WARNING
!
5.1 Sizing of the connecting
line
Refer to the table below for the minimum re-
quired nominal size of the connecting line at
the port 1of the enclosure.
Thespecicationsapplytoaconnectingline
shorterthan2m.Usealargernominalsize
forlineslongerthan2m.
Connection 1
Pipe 1) 12×1mm
Hose 2) 9×3mm
1) Outside diameter x Wall thickness
2) Inside diameter x Wall thickness
5.2 Compressed air quality
The operating medium for the device is in-
strument air (free from corrosive substances),
2.5to10bar.
Compressed air quality according to
ISO8573-1
Particle size
and quantity
Oil content Pressure dew point
Class 4 Class 3 Class 3
≤5µmand
1000/m³ ≤1mg/m³
–20°C/10K
below the lowest
ambient
temperature to be
expected

EB 3930 EN 15
Electrical connection
6 Electrical connection
For electrical installation, observe the rele-
vant electrotechnical regulations and the ac-
cident prevention regulations that apply in
the country of use. In Germany, these are
the VDE regulations and the accident pre-
vention regulations of the employers’ liability
insurance.
The degree of protection (according to
IEC60529: 1989) is only guaranteed when
the cable socket is mounted, the exhaust air
lter is installed and the connections have
been properly mounted.
A three-pole connector according to
DINEN175301-803,typeB,isusedfor
electrical connection (see Fig.5).
81
876
25
3
21
12
43
34
82
+
+
+
+
–
–
–
_
Blue Brown
Device cable socket according to
DINEN175301-803
Fig.5: Connection diagram
DANGER
!
6.1 Sizing of the connecting
line
We recommend the following size of the
connecting lines:
− Wirecross-section≥0.5mm²
− 8mmoutsidediameter
6.2 Manual override
The devices have a manual override to allow
the devices to be manually operated when a
electrical nominal signal is not available.
The switch is accessible from outside the en-
closure with a screwdriver.

16 EB 3930 EN
Malfunctions
7 Malfunctions
Depending on the operating conditions, check the valve at certain intervals to prevent possi-
ble failure before it can occur. Operators are responsible for drawing up an inspection and
test plan.
Faults Possible reasons Recommended action
Solenoid valve does not switch Spool in the enclosure is
blocked
Contact SAMSON.
Insufcientpilotpressure Check the pressure line.
Check the pressure line for leak-
age.
Use a larger cross-section for
the pressure line.
The solenoid valve leaks to the
atmosphere
O-rings slipped Check that the O-rings are cor-
rectly seated.
Pilotpressureisinsufcientand
an intermediate position is
reached (air is constantly vent-
ed)
Check the pressure line.
Check the pressure line for leak-
age.
Use a larger cross-section for
the pressure line.

EB 3930 EN 17
Disposal
8 Disposal
SAMSON is a producer
registered at the following
European institution uhttps://
www.ewrn.org/national-
registers/national-registers.
WEEE reg. no.:
DE62194439/FR025665
ÎObserve local, national and international refuse regulations.
ÎDo not dispose of components, lubricants and hazardous substances together with your
other household waste.
We can provide you with a recycling passport according to PAS1049 on request. Simply
e-mail us at [e-mail] giving details of your company address.
On request, we can appoint a service provider to dismantle and recycle the product.
9 Accessories
Designation Ordernumber
BlankingplugG¼,stainlesssteel1.4571(forthreadedconnections) 0070-0856
O-ring 14x1.5 made of nitrile butadiene rubber (for blanking plug) 8421-0070
Silencermadeofpolyethylene,G¼connection,degreeofprotectionIP54 8504-0066
CablesocketaccordingtoDINEN175301-803,madeofblackpolyamide,type
B,3-pole,withPg9cableglandandgasketofnitrilebutadienerubber 0790-6054
AdapterplatewithNAMURinterface¼“onNAMURrib(G¼) 1400-6751
AdapterplatewithNAMURinterface¼“forSAMSONTypes3353and3354
Valves 1409-3001
AdapterplatewithNAMURinterface¼“forSAMSONType3351On/offValve 1400-9638
Note
Tip

18 EB 3930 EN

EB 3930 EN 19

2022-12-13 · English
SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: [phone] · Fax: [phone]
[email protected]om · www.samsongroup.com
EB 3930 EN