Samson 3730-2 Service manual

Electropneumatic Positioner
Type 3730-2
Mounting and
Operating Instructions
EB 8384-2 EN
Firmware version 1.2x
Edition December 2004
Fig. 1 · Type 3730-2

Contents Page
1 Design and principle of operation . . . . . . . . . . . . . . . . . . . 8
1.1 Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Attachment to the control valve – mounting parts and accessories . . . 13
2.1 Direct attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.1 Type 3277-5 Actuator. . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.2 Type 3277 Actuator. . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2 Attachment according to IEC 60534-6 . . . . . . . . . . . . . . . . . 20
2.3 Attachment to Type 3510 Micro-flow Valve. . . . . . . . . . . . . . . 22
2.4 Attachment to rotary actuators . . . . . . . . . . . . . . . . . . . . . 24
2.5 Reversing amplifier for double-acting actuators . . . . . . . . . . . . . 26
2.6 Attaching an external position sensor . . . . . . . . . . . . . . . . . 28
2.6.1 Mounting the position sensor with direct attachment. . . . . . . . . . . 28
2.6.2 Mounting the position sensor with attachment according to IEC 60534-6 30
2.6.3 Mounting the position sensor to Type 3510 Micro-flow Valve . . . . . . 31
2.6.4 Mounting the position sensor to rotary actuators . . . . . . . . . . . . 32
3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . 34
3.1.1 Signal pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . 34
3.1.2 Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.2.1 Switching amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.1 Operator controls and display . . . . . . . . . . . . . . . . . . . . . 38
4.2 Enabling and selecting parameters . . . . . . . . . . . . . . . . . . 40
4.3 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.3.1 Automatic and manual operating modes . . . . . . . . . . . . . . . . 41
4.3.2 SAFE – Fail-safe position . . . . . . . . . . . . . . . . . . . . . . . 42
5 Start-up and settings . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.1 Determining the fail-safe position . . . . . . . . . . . . . . . . . . . 42
5.2 Setting the volume restriction Q . . . . . . . . . . . . . . . . . . . . . 43
5.3 Limiting the signal pressure . . . . . . . . . . . . . . . . . . . . . . 43
5.4 Checking the operating range of the positioner . . . . . . . . . . . . . 43
5.5 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.5.1 Initialization modes . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.6 Start-up via local interface (SSP) . . . . . . . . . . . . . . . . . . . . 52
5.7 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2EB 8384-2 EN
Contents

5.8 Zero calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.9 Reset to default values . . . . . . . . . . . . . . . . . . . . . . . . 54
6 Adjusting the limit switch . . . . . . . . . . . . . . . . . . . . . . . 54
7 Quick start-up guide . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.3 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.3.1 Simplest method (
MAX ) . . . . . . . . . . . . . . . . . . . . . . . . 59
7.3.2 Precise method (
NOM ) . . . . . . . . . . . . . . . . . . . . . . . . 59
7.3.3 Manual method (MAN) . . . . . . . . . . . . . . . . . . . . . . . . 59
8 Retrofitting an inductive limit switch . . . . . . . . . . . . . . . . . . 60
9 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10 Servicing explosion-protected devices . . . . . . . . . . . . . . . . . 61
11 Code list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
12 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Test certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
EB 8384-2 EN 3
Contents

4EB 8384-2 EN
Safety instructions
General safety instructions
4
The positioner may only be assembled, started up or operated by trained
and experienced personnel familiar with the product.
According to these mounting and operating instructions, trained personnel is
referred to as individuals who are able to judge the work they are assigned
to and recognize possible dangers due to their specialized training, their
knowledge and experience as well as their knowledge of the relevant
standards.
4
Explosion-protected versions of this positioner may only be operated by
personnel who have undergone special training or instructions or who are
authorized to work on explosion-protected devices in hazardous areas.
Refer to section 10 on Servicing explosion-protected versions.
4
Any hazards that could be caused by the process medium, the operating
pressure, the signal pressure or by moving parts of the control valve are to
be prevented by means of the appropriate measures.
4
If inadmissible motions or forces are produced in the actuator as a result of
the supply pressure level, it must be restricted by means of a suitable supply
pressure reducing station.
4
Proper shipping and appropriate storage are assumed.
4
Note! The device with a CE marking fulfils the requirements of the Directives
94/9/EC (ATEX) and 89/336/EEC (EMC).
The declaration of conformity can be viewed and downloaded on the
Internet at http://www.samson.de.

EB 8384-2 EN 5
Versions
Article code Type 3730-2 XXXXX00X0X00x0
Explosion protection
Without
II 2 G EEx ia IIC T6/II 2 D IP 65 T 80 °C
acc. to ATEX
Ex ia FM/CSA
II 3 G EEx na II T6 /II 3 D IP 65 T 80 °C
acc. to ATEX
0
1
3
8
Additional equipment
Inductive
limit switch
Without
With Type SJ 2-SN
0
10
Solenoid valve
SIL 4
Without
24 V DC
0
4
Analog
position transmitter
Without
With
0
1
External
position sensor
Without
With 0
0
1
Diagnostics Expert
Expert +(extended diagnostics)
1
2
Housing material Aluminum
Stainless steel 1.4581 0
0
1
Positioner for
special
applications
Without
Free of substances that
impair painted surfaces
Exhaust air with pneum.
connection ¼ NPT
0
1
2
Special
versions
Without 0

6EB 8384-2 EN
Firmware modification
Modifications of positioner firmware in comparison to previous versions
Previous New
1.01 1.10
Via the serial interface and the serial interface adapter, the positioner can be
configured and operated using TROVIS-VIEW software.
The following additional status indications were implemented:
Code 76 - No emergency mode
Code 77 - Program loading error
Displays number of zero calibrations performed since the last initialization.
For initialization of "AIR TO CLOSE" actuators, the direction of action (Code
7) is automatically set to increasing/decreasing.
Code 3, the activation period of the enabled configuration function was ex-
tended to 120 s.
1.10 1.20
Electronics changed, no new functions added.

EB 8384-2 EN 7
Firmware modification

1 Design and principle of
operation
The electropneumatic positioner is mounted
to pneumatic control valves and is used to
assign the valve position (controlled
variable x) to the control signal (reference
variable w). The DC control signal received
from a control unit is compared to the travel
or rotational angle of the control valve and
issues a signal pressure (output variable y).
The positioner is designed depending on the
corresponding accessories for direct
attachment to Type 3277 Actuators or for
attachment to actuators according to
IEC 60534-6 (NAMUR).
Additionally, a coupling wheel included in
the accessories is required to transfer the ro-
tary motion for rotary actuators according to
VDI/VDE 3845.
Springless rotary actuators require an ac-
cessory reversing amplifier to permit the
powered operation in either direction.
The positioner basically consists of a travel
sensor system that functions proportional to
the resistance, an analog i/p module with
downstream booster as well as the electronic
unit with a microcontroller.
The positioner is fitted with three binary con-
tacts as standard: A fault alarm output is
used to indicate a fault to the control station
and two configurable software limit switches
to indicate the valve’s end positions.
The position of the valve is transmitted as
linear travel motion or angle of rotation via
pick-up lever and travel sensor (2) to an an-
alog PD controller (3). Simultaneously, an
A/D converter (4) transmits the position of
the valve to the microcontroller (5). The PD
controller compares this actual position to
the 4 to 20 mA DC control signal (reference
variable) after it has been converted by the
A/D converter (4).
In case of a system deviation, the operation
of the i/p converter (6) is changed so that
the actuator (1) is filled or vented via the
downstream air capacity booster (7). This
causes the closure member of the control
valve to move to the position determined by
the reference variable.
The pneumatic air capacity booster (7) and
the pressure regulator (8) are provided with
supply air. An intermediate flow regulator
(9) with fixed settings is used to purge the
positioner and also guarantees trouble-free
operation of the pneumatic booster. The out-
put signal pressure supplied by the booster
can be limited over the software.
The volume restriction Q (10) is used to opti-
mize the positioner by adapting it to the ac-
tuator size.
Serial interface
The positioner is equipped with an interface
to allow the SAMSON TROVIS-VIEW Con-
figuration and Operator Interface software
to transmit data and parameters over an
adapter cable from the RS-232 interface of
a computer to the positioner.
8EB 8384-2 EN
Design and principle of operation

1.1 Additional equipment
As an option, the device can be additionally
equipped with a solenoid valve for forced
venting, an analog position transmitter, an
inductive limit switch or an external position
sensor.
Version with solenoid valve
If the operating voltage for the solenoid
valve (12) fails, the supply pressure for the
i/p module is vented to the atmosphere. The
positioner can no longer operate and the
control valve moves to the fail-safe position
determined by the actuator, independent of
the reference variable.
Positioner with position transmitter
The position transmitter (13) is a two-wire
transmitter and issues the travel sensor sig-
nal as a 4 to 20 mA signal processed by the
microcontroller.
Since this signal is issued independent of the
positioner’s input signal (min. current
3.8 mA), the actual travel/angle of rotation
is controlled in real-time. Additionally, the
position transmitter provides the possibility
of signaling a positioner fault over a signal
current of <2.4 mA or >21.6 mA.
EB 8384-2 EN 9
Design and principle of operation
Fig. 2 · Functional diagram
1 Control valve
2 Travel sensor
3 PD controller
4 A/D converter
5 Microcontroller
6 i/p converter
7 Air capacity booster
8 Pressure regulator
9 Flow regulator
10 Volume restriction
11* Inductive limit switch
12* Solenoid valve
13* Analog position transmitter
14 Software limit switches
Alarm 1/2
15 Fault alarm output
Alarm 3
16 Display
17* Solenoid valve control
18* Galvanic isolation
19 D/A converter
20 Communication interface
* Optional
w
x
Q
%
S
mm
GG
PD
Serial
Interface
16
20 13
15
A2
A3
A1
11
2
419
5
3
12
6
7
8
10
1
14
14
w
x
y
24V DC
9
17 18

Version with inductive limit switch
The rotary shaft of the positioner carries an
adjustable tag which actuates the installed
proximity switch.
The optional inductive limit switch (11) leads
to A1 and the software limit switch, which
remains in operation, leads to A2.
Version with external position sensor
In this version, only the sensor is mounted to
the control valve. The positioner is located
separately from the valve.
The connection of x and y signals to the
valve is established via cable and air hosing
(only for non-hazardous areas and without
inductive limit switch).
1.2 Technical data
10 EB 8384-2 EN
Design and principle of operation
Positioner
Nominal travel,
adjustable
Direct attachment to Type 3277: 3.6 to 30 mm, attachment acc. to IEC 60534-6:
3.6 to 200 mm or 24° to 100° opening angle for rotary actuators
Travel range Adjustable within the nominal travel/nominal angle, max. ratio 1 : 5
Reference variable w Signal range 4 to 20 mA, 2-wire unit, reverse polarity protection,
min. span 4 mA, static destruction limit 100 mA
Minimum current 3.6 mA for display, 3.8 mA for operation
Load impedance Version without explosion protection: ≤6 V (corresponding to 300 Ωat 20 mA),
Explosion-protected version: ≤7 V (corresponding to 350 Ωat 20 mA)
Supply air
Supply pressure from 1.4 to 6 bar (20 to 90 psi),
Air quality acc. 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 beneath the lowest
ambient temperature to be expected
Signal pressure (output) 0 bar up to supply pressure, limitable to 1.4/2.4/3.7 ±0.2 bar via software
Characteristic,
user-defined adjustable
over operating software
Linear/equal percentage/reverse equal percentage/butterfly valve linear/
butterfly valve eq. percentage/rotary plug valve linear/rotary plug valve eq. percen-
tage/segmented ball valve linear/segmented ball valve eq.percentage
Deviation from terminal-based conformity ≤1 %
Hysteresis ≤0.3 %
Sensitivity ≤0.1 %

EB 8384-2 EN 11
Design and principle of operation
Transit time Separately adjustable up to 240 seconds for supply air and exhaust air
Direction of action Reversible
Air consumption, steady
state Independent from supply pressure approx. 110 ln/h
Air delivery
Actuator pressurized
Actuator vented
At ∆p = 6 bar: ≥8.5 mn3/h, at ∆p = 1.4 bar: 3.0 mn3/h KVmax (20 °C) = 0.09
at ∆p = 6 bar: ≤14.0 mn3/h, at ∆p = 1.4 bar: 4.5 mn3/h KVmax (20 °C) = 0.15
Permissible ambient
temperature
–20 to +80 °C, with metal cable gland –40 to +80 °C
The limits specified in the EC Type Examination Certificate additionally apply for
explosion-protected devices.
Influences Temperature: ≤0.15 %/10 K Supply air: None
Vibration: ≤0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Electromagnetic
compatability Complying with EN 61000-6-2, EN 61000-6-3 and NAMUR Recommendation NE 21
Explosion protection II 2 G EEx ia IIC T6 / II 2 D IP 65 T 80 °C or
II 3 G EEx nA II T6 / II 3 D IP 65 T 80 °C
Degree of protection IP 65
Communication (local) SAMSON SSP interface and serial interface adapter
Software requirements TROVIS-VIEW with database module 3730-2
Binary contacts 1 fault alarm contact,
2 software limit switches with configurable limit values, reverse polarity protection
Signal status
No response:
Response:
Without explosion protection
Conductive (R = 348 Ω)
Non-conducting
Ex.-protected version:
≥2.1 mA
≤1.2 mA
Operating voltage
Positioners with model no. ../9000 only for connection to
signal converter acc. to EN 60947-5-6.
All other versions also for connection to binary input of
the PLC acc. to EN 61131, Pmax = 400 mW
Only for connection to
signal converter acc. to
EN 60 957-5-6
Solenoid valve SIL 4 approval acc. to IEC 61508
Input
24 V DC reverse polarity protection, static destruction limit 40 V;
Current consumption I = U5.6V
4020W
−(corresponding to 4.5 mA at 24 V)
Signal Signal "0" no pick-up ≤15 V Signal "1" safe pick-up >19 V
Service life >2 x 107 switching cycles
Implementation in
safety-relevant systems in
compliance with
IEC 61508
Probability of failure on demand of safety functions PFD < 2.8 x 10-7 for a confidence
level of 95 %.
The safe failure fraction (SFF) according to Table A1 in IEC 61508-2 is greater or
equal to 0.99. The valves are therefore suitable for implementation in safety-related
systems with a hardware fault tolerance of 1 or 2 up to and including SIL 4.

12 EB 8384-2 EN
Design and principle of operation
Analog position
transmitter Two-wire transmitter
Supply voltage 12 to 30 V DC, reverse polarity protection, static destruction limit 40 V
Output signal 4 to 20 mA
Direction of action Reversible
Operating range 0 to 100 % of the travel range, optional also for fault indication over 2.4 or 21.6 mA
Characteristic Linear
Hysteresis and
HF influence Same as positioner
Ripple content of output
signal 0.6 % at 28 Hz acc. to IEC 381 T1
Other influences Same as positioner
Fault indication Can be issued with current signal < 2.4 mA or > 21.6 mA
Inductive limit switch Type SJ 2SN Proximity Switch
For connection to switching amplifier acc. to EN 60947-5-6. Can be used in combination with a software limit
switches.
External position sensor
Nominal travel Adjustable same as positioner
Cable Max. 10 m with M12x1 connector, designed for continuous flexing, flame retardant
acc. to VDE 0472, reistant to oils, lubricants as well as other corrosive media
Ambient conditions
Perm. temperature: –40 to +105 °C, the limits specified in the EC Type Examination
Certificate additionally apply for explosion-protected devices.
Vibration immunity: up to 10 g in the range between 10 and 2000 Hz
Degree of protection IP 67
Materials Housing: Die-cast aluminum GD AlSi12 acc. to DIN 1725 (3.2582), chromated and plastic coated, special version. CrNiMo (1.4581); External parts: Stainless steel
1.4571 and 1.4301. Cable gland M20x1.5, black polyamide
Weight Approx. 1.0 kg

2 Attachment to the control
valve – mounting parts and
accessories
The positioner can be attached either di-
rectly to a SAMSON Type 3277 Actuator or
according to IEC 60534-6 (NAMUR) to con-
trol valves with cast yokes or rod-type yokes
as well as to rotary actuators according to
VDI/VDE 3845.
For attachment to the various actuators, cor-
responding mounting parts and accessories
are required. These are listed with their or-
der numbers in Tables 1 to 5.
On attaching the positioner, it is important
to observe the assignment between lever
and pin position according to the travels
listed in the travel tables.
The tables show the maximum adjustment
range at the positioner. The travel that can
be implemented at the valve is restricted by
the pin position used and additionally by the
actuator spring compression required.
The positioner is standard equipped with the
lever M(pin position 35).
Note!
If the standard mounted lever M (pin posi-
tion 35) is replaced, the newly mounted le-
ver must be moved once all the way as far
as it will go in both directions to adapt it to
the internal measuring lever.
EB 8384-2 EN 13
Attachment to the control valve – mounting parts and accessories
Travel table for direct attachment to Type 3277 Actuator
Type
3277-5
and
3277
Actuators
Actuator size
cm2
Rated travel
mm
Adjustment range at positioner
Min. Travel Max.
Required
lever
Assigned
pin position
120 7.5 5 17.6 M 25
120/240/350 15 7.5 35.4 M 35
700 30 10 50 M 50
Travel table for attachment according to IEC 60534-6 (NAMUR)
SAMSON valves Other valves/actuators Required
lever
Assigned
pin position
Antrieb
Typ 3271
cm2Rated travel mm Min. Travel Max.
60 and 120 with
Type 3510 Valve 7.5 3.6 17.6 S 17
120 7.5 5.0 17.6 M 25
120/240/350 15 7.5 35.4 M 35
700/1400/2800 15 and 30/30 10 50 M 50
1400/2800 60 14.0 70.8 L 70
1400/2800 60 20.0 100 L 100
2800 120 40.0 200 XL 200
Rotary actuators Opening angle 24° to 100° M 90°

14 EB 8384-2 EN
Attachment to the control valve – mounting parts and accessories
Table 3 Attachment to NAMUR ribs or control valves with rod-type yokes (rod diameter Ø 35 mm or smaller)
according to IEC 60534-6, see Fig. 5
Travel in mm Lever For actuators Order no.
7.5 S Type 3271-5 Actuator with 60/120 cm2on Type 3510
Valve, see Fig. 6 1400-7457
5 to 50 Without (lever M on
basic model)
Actuators from other manufacturers and Type 3271 with
120 to 700 cm21400-7454
14 to 100 L Actuators f. other manufacturers and Type 3271 w. 1400 cm21400-7455
40 to 200 XL Actuators from other manufacturers and Type 3271 with
2800 cm2, 120 mm travel 1400-7456
30 or 60 L Type 3271 Actuator with 2800 cm2and 30 or 60 mm travel 1400-7466
Mounting brackets for Emerson and Masoneilan linear actuators
In addition, a mounting kit acc. to IEC 60534-6 is required depending on the travel. See row above. 1400-6771
Accessories
Connecting plate G ¼: 1400-7461 ¼ NPT : 1400-7462
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (output/supply) St.st./Bs: 1400-6950 St.st./St.st.: 1400-6951
Table 1 Direct attachment to Type 3277-5 Actuator Order no.
Mounting parts For actuators with 120 cm2effective diaphragm area 1400-7452
Accessories
for the
actuator
Switchover plate (old) for Actuator Type 3277-5xxxxxx.00 (old) 1400-6819
Switchover plate new for Actuator Type 3277-5xxxxxx.01 (new) 1400-6822
Connecting plate for additional attachment of a solenoid valve G 1/8
Connecting plate (old) for Actuator Type 3277-5xxxxxx.00 (old) 1/8 NPT
1400-6820
1400-6821
Connecting plate new for Actuator Type 3277-5xxxxxx.01 (new) 1400-6823
Note: Only new switchover and connecting plates can be used with new actuators (Index 01).
Old and new plates are not interchangeable.
Accessories
for the
positioner
Connecting plate (6) G ¼: 1400-7461 ¼ NPT: 1400-7462
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (8) (output/supply) St. st./Bs: 1400-6950 St. st./St. st.: 1400-6951
Table 2 Direct attachment to Type 3277 Actuator
Accessories
Mounting parts for actuators with 240, 350 and 700 cm2, see Fig. 4 1400-7453
Required piping with screw fittings for "Actuator
stem retracts" or when the top diaphragm
chamber is filled with air
cm2Steel Stainless steel
240 1400-6444 1400-6445
350 1400-6446 1400-6447
700 1400-6448 1400-6449
Connection block with seals and screw G ¼: 1400-8811 ¼ NPT: 1400-8812
Pressure gauge mounting kit (output and supply) St.st./Bs: 1400-6950 St.st/St.st.: 1400-6951

EB 8384-2 EN 15
Attachment to the control valve – mounting parts and accessories
Table 4 Attachment to rotary actuators (VDI/VDE 3845 for all sizes of fixing level 2) see Figs. 7 and 8
Mounting
parts
With follower clamp
and coupling wheel
VDI/VDE 3845 for all sizes of fixing level 2
for Type 3278 Actuator with 160/320 cm2
for Camflex II
1400-7448
1400-7614
1400-9120
Accessories
Connecting plate G ¼: 1400-7461 ¼ NPT: 1400-7462
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (output/supply) St.st./Bs: 1400-6950 St.st./St.st: 1400-6951
Table 5 General accessories
Accessories
Pneumatic reversing amplifier for double-acting
actuators
G ¼
¼ NPT
1079-1118
1079-1119
Cable gland M20 x 1.5 Nickel-plated brass 1890-4875
Adapter M 20 x 1.5 to ½ NPT, aluminum 0310-2149
Retrofit kit for inductive limit switch 1x SJ 2-SN 1400-7460
Cover plate with list of parameters
and operating instructions
German/English (standard)
English/Spanish
English/French
1190-0761
1190-3100
1190-3142

2.1 Direct attachment
2.1.1 Type 3277-5 Actuator
Refer to Table 1 on page 14 for the required
mounting parts as well as the accessories
with their order numbers.
Note the travel table on page 13!
Actuator with 120 cm2
Depending on the type of positioner attach-
ment, the signal pressure is routed either left
or right of the yoke through a bore to the
actuator diaphragm. Depending on the
fail-safe action of the actuator "Actuator
stem extends" or "Actuator stem retracts"
(valve closes or opens if the supply air fails),
the switchover plate (9) must first be at-
tached to the actuator yoke. Align the
switchover plate with the corresponding
symbol for left or right attachment according
to the marking (view looking onto the
switchover plate).
1. Mount connecting plate (6) or pressure
gauge bracket (7) with pressure gauges
onto the positioner, making sure both
seal rings (6.1) are seated properly.
2. Remove vent plug (4) on the back of the
positioner and close the signal pressure
output "Output 38" on the connecting
plate (6) or on the pressure gauge
bracket (7) with the stopper (5) included
in the accessories.
3. Place follower clamp (3) on the actuator
stem, align and screw tight so that the
mounting screw is located in the groove
of the actuator stem.
4. Mount cover plate (10) with narrow side
of the cut-out opening (Fig. 3, on the
left) pointing towards the signal pressure
connection. Make sure that the bonded
gasket (14) points towards the actuator
yoke.
5. 15 mm travel: Keep the follower pin (2)
at lever M(1) on the back of the
positioner in the pin position 35 (deliv-
ered state).
7.5 mm travel: Remove the follower pin
(2) from the pin position 35, reposition it
in the bore for pin position 25 and
screw tight.
6. Insert formed seal (15) in the groove of
the positioner casing.
7. Place positioner on the cover plate (10)
in such a manner that the follower pin
(2) rests on the top of the follower clamp
(3). Adjust the lever (1) correspondingly
and open the positioner cover to hold
the positioner shaft in position at the cap
or the switch (Fig. 16).
The lever (1) must rest on the follower
clamp with spring force.
Mount the positioner on the cover plate
(10) using the two fixing screws. During
the installation make sure that the seal
ring (10.1) is inserted in the bore of the
intermediate plate.
8. Mount cover (11) on the other side.
Make sure that the vent plug points
downwards when the control valve is in-
stalled to allow any condensed water
that collects to drain off.
16 EB 8384-2 EN
Attachment to the control valve – mounting parts and accessories

EB 8384-2 EN 17
Attachment to the control valve – mounting parts and accessories
Fig. 3 · Direct attachment - Signal pressure connection for Type 3277-5 Actuator with 120 cm
2
9 11
Supply 9 Output 38
5
6
4
7
6
10
10.1
3
2
1
15
6.1
1.1
1.2
14
8
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
4 Vent plug
5 Stopper
6 Connecting plate
6.1 Seal rings
7 Pressure gauge bracket
8 Press. gauge mounting kit
9 Switchover plate
for actuator
10 Cover plate
10.1Seal ring
11 Cover
14 Gasket
15 Formed seal
Important!
Always use the connecting plate (6)
included in the accessories to connect
supply and output.
Never screw threaded parts directly
into the housing.
Symbols
Actuator stem
extends
Attachment left Attachment right
Actuator stem
retracts
Switchover plate (9)
Signal pressure
input for right
attachment
Marking
Cut-out of cover
plate
Signal pressure
input for left
attachment

2.1.2 Type 3277 Actuator
Refer to Table 2 on page 14 or the required
mounting parts as well as the accessories
with their order numbers.
Note the travel table on page 13!
Actuators with 240 to 700 cm2
The positioner can be mounted either on the
left or on the right side of the yoke. The sig-
nal pressure is routed to the actuator over
the connection block (12), for actuators with
fail-safe action "Actuator stem extends" in-
ternally through a bore in the valve yoke
and for "Actuator stem retracts" through ex-
ternal piping.
1. Place follower clamp (3) on the actuator
stem, align and screw tight so that the
mounting screw is located in the groove
of the actuator stem.
2. Mount cover plate (10) with narrow side
of the cut-out opening (Fig. 4, on the
left) pointing towards the signal pressure
connection. Make sure that the bonded
gasket (14) points towards the actuator
yoke.
3. For actuators with 700 cm2, remove the
follower pin (2) at lever M(1) on the
back of the positioner from pin position
35, reposition it in the bore for pin posi-
tion 50 and screw tight.
For actuators 240 and 350 cm2with
15 mm travel, the follower pin (2) re-
mains in pin position 35.
4. Insert formed seal (15) in the groove of
the positioner casing.
5. Place positioner on the cover plate in
such a manner that the follower pin (2)
rests on the top of the follower clamp
(3). Adjust the lever (1) correspondingly
and open the positioner cover to hold
the positioner shaft in position at the cap
or the switch (Fig. 16). The lever (1) must
rest on the follower clamp with spring
force. Mount the positioner on the cover
plate (10) using the two fixing screws.
6. Make sure that the tip of the gasket (16)
projecting from the side of the connec-
tion block (12) is positioned above the
actuator symbol that corresponds with
the actuator with fail-safe action "Actua-
tor stem extends" or "Actuator stem re-
tracts." If necessary, remove the three
fixing screws and the cover. Then repo-
sition the gasket (16) turned by 180°.
The previous version of the connection
block (Fig. 4, bottom) requires the switch
plate (13) to be turned such that the cor-
responding actuator symbol points to the
marking.
7. Place the connection block (12) with the
associated seal rings against the
positioner and the actuator yoke. Screw
it tight using the fixing screw (12.1). For
actuators with fail-safe action "Actuator
stem retracts", additionally remove the
stopper (12.2) and fit on the external
signal pressure piping.
8. Mount cover (11) on the other side.
Make sure that the vent plug points
downwards when the control valve is in-
stalled to allow any condensed water
that collects to drain off.
18 EB 8384-2 EN
Attachment to the control valve – mounting parts and accessories

EB 8384-2 EN 19
Attachment to the control valve – mounting parts and accessories
Fig. 4 · Direct attachment – Signal pressure connection for Type 3277 Actuator with 240, 350 and 700 cm
2
2
10 1415
12311
SUPPLY
13
16
B
1.1
1.2
12
12.1
12
12.1
12.2
A
1216 12.2 SUPPLY
Cut-out of
cover plate (10)
Actuator stem
retracts extends
Stem retracts
Stem extends
Marking
Connection block (old)
with switch plate (13)
Lever M
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
10 Cover plate
11 Cover
12 Connection block
12.1 Screw
12.2 Stopper or connection for
external piping
13 Switch plate
14 Gasket
15 Formed seal
16 Gasket

2.2 Attachment according to
IEC 60534-6
The positioner is attached to the control
valve with a NAMUR bracket (10).
Refer to Table 3 on page 14 for the required
mounting parts as well as the accessories
with their order numbers.
Note the travel table on page 13!
1. Screw the two bolts (14) to the bracket
(9.1) of the stem connector (9), place the
follower plate (3) on top and use the
screws (14.1) to tighten.
Actuator size 2800 cm2:
For a travel of 60 mm or smaller, screw
the longer follower plate (3.1) directly to
the stem connector (9). For a travel ex-
ceeding 60 mm, mount the bracket (16)
first and then the follower plate (3) to the
bracket together with the bolts (14) and
screws (14.1).
2. Mount NAMUR bracket (10) to the con-
trol valve as follows:
For attachment to the NAMUR rib, use
an M8 screw (11) and toothed lock
washer directly in the yoke bore.
For attachment to valves with rod-type
yokes, use two U-bolts (15) around the
yoke.
Align the NAMUR bracket (10) accord-
ing to the embossed scale so that the slot
of the follower plate (3) is centrally
aligned with the NAMUR bracket at mid
valve travel.
3. Mount connecting plate (6) or pressure
gauge bracket (7) with pressure gauges
(8) on the positioner, making sure both
seal rings (6.1) are seated properly.
4. Select required lever size (1) M,Lor XL
and pin position according to the actua-
tor size and valve travels listed in the ta-
ble below.
Should you require a pin position other
than position 35 with the standard in-
stalled lever M, or require a lever size L
or XL, proceed as follows:
5. Screw the follower pin (2) in the as-
signed lever bore (pin position) as listed
in the table. Only use the longer follower
pin (2) included in the mounting kit.
6. Place lever (1) on the positioner shaft
and screw tight using the disk spring
(1.2) and nut (1.1).
Note!
If you have mounted a new lever (1), you
must move it once all the way as far as it
will go in both directions.
7. Place positioner on the NAMUR bracket
in such a manner that the follower pin
(2) rests in the slot of the follower plate
(3, 3.1). Adjust the lever (1) correspond-
ingly.
Screw the positioner to the NAMUR
bracket using both its fixing screws.
20 EB 8384-2 EN
Attachment to the control valve – mounting parts and accessories