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                     © Siemens AG 2008
Electropneumatic positioners
SIPART PS2
6/2 Product overview
6/3 SIPART PS2
6/3 Technical description
6/8 Technical specifications
6/8 - all versions
6/9 - SIPART PS2
6/11 - SIPART PS2 PA
6/13 - SIPART PS2 FF
6/15 - Option modules
6/18 Ordering data
6/18 - SIPART PS2, PS2 PA, PS2 FF
6/19 - SIPART PS2 EEx-d, PS2 EEx-d PA, 
PS2 EEx-d FF
6/20 - Accessories
6/22 Dimensionsal drawings
6/23 Schematics
6/24 Mounting kits
Software
Sec. 8 SIMATIC PDM, for parameterize 
HART and PROFIBUS PA devices
You can download all instructions, cata-
logs and certificates for SIPART PS2 free 
of charge at the following Internet 
address:
www.siemens.com/sipartps2
Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
Product overview
■ Overview
Application Device description Catalog Software for 
page parameterization
 Electropneumatic positioners SIPART PS2
Position control SIPART PS2 6/3 SIMATIC PDM
Pneumatic linear or part- Universal device for positioning pneumatic actuators
turn actuators, also for 
• Connection: 4 to 20 mA
intrinsically-safe opera-
tion • HART, PROFIBUS PA or Foundation Fieldbus
• Local manual operation
• Binary inputs and outputs
• Diagnosis functions
• Blocking function
• Automatic startup
As above, but in flame- SIPART PS2 6/3 SIMATIC PDM
proof casing for explo- As above, but in flameproof aluminium 
sion-proof application casing
6
6/2 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical description
■ Overview ■ Benefits
SIPART PS2 positioners offer decisive advantages:
• Simple installation and automatic commissioning (self-adjust-
ment of zero and span)
• Simple operation with 
- Local operation and configuration of the device using three 
input keys and a user-friendly two-line LCD
- Programming through SIMATIC PDM
• Very high-quality control thanks to an online adaptation proce-
dure
• Negligible air consumption in stationary operation
• "Tight shut-off" function (ensures maximum positioning pres-
sure on the valve seat)
• Numerous functions can be activated by simple configuring 
(e.g. characteristics and limits) 
• Extensive diagnosis functions for valve and actuator
• Only one device version for linear and part-turn actuators
 
SIPART PS2 electropneumatic positioner • Few moving parts, hence insensitive to vibrations
• External non-contacting position sensor as option for extreme 
ambient conditions 
• "Intelligent solenoid valve": Partial Stroke Test and solenoid 
valve function in a single device
• Partial Stroke Test e.g. for safety valves
• SIL (Safety Integrity Level) 2
• Can also be operated with natural gas
■ 6Application
The SIPART PS2 positioner is used, for example, in the following 
industries:
• Chemical/petrochemical
• Power stations
• Paper and glass
• Water, waste water
 
• Food and pharmaceuticals
SIPART PS2 EEx d electropneumatic positioner in flameproof casing
• Offshore plants
The SIPART PS2 positioner is available:
• For single-action actuators: in plastic, stainless steel or alumi-
num casings, as well as flameproof aluminium casing (EEx d)
• For double-action actuators: in plastic and stainless steel cas-
ing, as well as flameproof aluminum casing (EEx d)
• For non-hazardous applications
• For hazardous applications in the designs 
- as intrinsically-safe device (EEx ia/ib) or
- in flameproof aluminum casing (EEx d) or
- in EEx n design (non sparking)
and in the versions:
• 0/4 to 20 mA control communication without/with communica-
tion through HART signal
• With PROFIBUS PA communication interface
• With FOUNDATION Fieldbus (FF) communications interface.
 
SIPART PS2 in stainless steel casing Explosion-proof versions
The SIPART PS2 electropneumatic positioner is used to control The basic version of the device is available in an intrinsically-
the final control element of pneumatic linear or part-turn actua- safe design with degree of protection EEx ia/ib or in a design 
tors. The electropneumatic positioner moves the actuator to a with approval for zone 2/zone 22 (dust).
valve position corresponding to the setpoint. Additional function 
inputs can be used to block the valve or to set a safety position. Operation in zone 1 is permitted when enclosed in the flame-
A binary input is present as standard in the basic device for this proof casing version SIPART PS2 EEx d. (see "Technical Data"). 
purpose. It is then permissible to use all option modules (except external 
actuator travel detection systems, SIA module, limit value con-
tact module and NCS).
Siemens FI 01 · 2009 US Edition 6/3
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical description
Stainless steel casing for extreme ambient conditions conditions at the fitting exceed the specified values for the posi-
tioner (e.g. strong vibrations).
The SIPART PS2 is available in a stainless steel casing (without 
window in the lid) for use in particularly aggressive environments The following can be used for measuring the travel or angle:
(e.g. offshore operation, chlorine plants etc.). The device func- • NCS sensor
tions are the same as those of the basic versions.
• External position detection system C73451-A430-D78
■ • A commercially available potentiometer (10 kΩ resistance) Design (e.g. for higher application temperatures or customer-specific 
The SIPART PS2 positioner is a digital field device with a highly- applications)
integrated microcontroller.
The use of linear potentiometers is recommended for very small ac-
The positioner consists of the following components: tuators with a short valve travel since, on the one hand, the space 
• Casing and cover required by the linear potentiometer is very small and, on the other, 
the transmission characteristic is optimum for a small travel.
• PCB with corresponding electronics with or without communi-
cation through HART
or with electronics for communication in accordance with 
- PROFIBUS PA specification, IEC 61158-2; bus-supplied de-
vice, or
- FOUNDATION Fieldbus (FF) specification, IEC 61158-2, 
bus-supplied device
• Actuator travel detection system
• Terminal housing with screw terminals
• Pneumatic valve manifold with piezoelectric valve precontrol.
The valve manifold is located in the housing, the pneumatic con-
nections for the inlet air and the positioning pressure on the right-
hand side. A pressure gauge block and/or a safety solenoid 
valve can be connected there as options. The SIPART PS2 posi-
tioner is fitted to the linear or part-turn actuator using an appro-
priate mounting assembly. The circuit board container in the 
casing provides slots for separately ordered boards with the 
6  following functions: Separate connection of actuator travel detection system and controller unit
Iy module: Non-contacting position sensor (NCS) 
• Position feedback as a two-wire signal 4 to 20 mA.
Alarm module (3 outputs, 1 input): 
• Signaling of two limits of the travel or angle by binary signals. 
The two limits can be set independently as maximum or mini-
mum values.
• Output of an alarm if the setpoint position of the final control 
element is not reached in automatic mode or if a device/fitting 
fault occurs.
• Second binary input for alarm signals of for triggering safety 
 
reactions e. g. for blocking function or safety position.
Contact and non-contacting positioning sensor (NCS) for part-turn actu-
Limit signaling through slot-type initiators (SIA module) ator (left) and for linear actuator 14 mm (0.55 inch) (right)
Two limits can be signaled redundantly as NAMUR signals 
(EN 60947-5-6) by slot-type initiators. The module also contains 
an alarm output (see Alarm module).
Limit value signal via mechanical contacts (Limit value con-
tact module) 
Two limits can be signaled redundantly by switching contacts. A 
fault message output is also integrated in the module (see alarm 
module).
Valid for all modules described above:
All signals are electrically isolated from one another and from the 
basic unit. The outputs indicate self-signaling faults. The mod-
ules are easy to retrofit.
Separate mounting of actuator travel detection system and 
controller unit 
The actuator travel detection system and controller unit can be 
connected separately for all casing versions of the SIPART PS2 
(except flameproof design). Measurement of the travel or angle 
is carried out directly on the actuator. The controller unit can then 
be fitted a certain distance away, e.g. on a mounting pipe or sim-
ilar, and is connected to the travel detection system by an elec-
tric cable and to the actuator by one or two pneumatic lines. NCS for travels >14 mm (0.55 inch)
Such a split design is frequently advantageous if the ambient 
6/4 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical description
The NCS sensor consists of a non-contacting position sensor. All In Manual mode the drive can be adjusted over the entire range 
coupling elements are omitted such as coupling wheel and without interrupting the circuit.
driver pin with part-turn actuators or lever and pick-up bracket 
with linear actuators up to 14 mm travel. Operation and monitoring with the SIMATIC PDM communi-
cations program
This results in:
The SIMATIC PDM program is available for communication 
• Even greater resistance to vibration and shock through the HART interface and also for the PROFIBUS PA cou-
• No wear of sensor pling.
• Problem-free mounting on very small actuators The SIMATIC PDM communications software permits easy re-
• Negligible hysteresis with very small travels. mote operation and monitoring using a PC or laptop. The posi-
tioner can also be configured using this program. Parameters 
The sensor does not require an additional power supply, i.e. which provide important information for maintenance and fault 
SIPART PS2 (not for EEx d version) can be operated in a 2-wire diagnosis of the complete unit can also be determined using 
system. The NCS (Non Contacting Position Sensor) consists of a process data and comparison data.
potted sensor housing which must be mounted permanently and 
a magnet which is mounted on the spindle of linear actuators or When operating the SIPART PS2 through the HART interface, the 
on the shaft butt of part-turn actuators. For the version for travels connection is made directly to the 2-wire cable to the 
>14 mm (0.55 inch), the magnet and the NCS are premounted SIPART PS2 positioner through a HART modem that can be con-
on a stainless steel frame and offer the same interface mechan- nected to the RS 232 or USB interface. The signals needed for 
ically as the positioner itself, i.e. they can be mounted using the communication in conformity with the HART protocol are super-
standard mounting kits 6DR4004-8V, -8VK and -8VL. imposed on the current signal in accordance with the Frequency 
Shift Keying (FSK) method.
The installation of a EMC filter module in the positioner (controller 
unit) is necessary in order to ensure a connection level with EMC Automatic commissioning
according to EN 61326/A1 and NAMUR NE21 when using exter- With a simple configuration menu the SIPART PS2 can be quickly 
nal sensors (see Ordering data for "EMC filter module") adapted to the fitting and adjusted by means of an automatic 
startup function.
■ Function During initialization, the microcontroller determines the zero 
point, full-scale value, the direction of action and the positioning 
The SIPART PS2 electropneumatic positioner works in a com- speed of the fitting. From this data it establishes the minimum 
pletely different way to normal positioners. pulse time and the dead zone, thus optimizing the control.
Mode of operation Low air consumption 6
Comparison of the setpoint and the actual value takes place A hallmark of the SIPART PS2 is its own extremely low consump-
electronically in a microcontroller. If the microcontroller detects a tion of air. Normal air losses on conventional positioners are very 
deviation, it uses a 5-way switch procedure to control the piezo- costly. Thanks to the use of modern piezoelectric technology, the 
electric valves, which regulates the flow of air into and from the SIPART PS2 consumes air only when it is needed, which means 
chambers of the pneumatic actuator or blows it in the opposite that it pays for itself within a very short time
direction. 
Comprehensive monitoring functions
The microcontroller then outputs an electric control command to 
the piezoelectric valve in accordance with the size and direction The SIPART PS2 has various monitoring functions with which 
of the deviation (deviation between setpoint w and control changes on the actuator and valve can be detected and sig-
output x). The piezoelectric valve converts the command into a naled if applicable when a selectable limit has been exceeded. 
pneumatic positional increment. This information may be important for diagnosis of the actuator 
or valve. The measured values to be determined and monitored, 
The positioner outputs a continuous signal in the area where some of whose limits can be adjusted, include:
there is a large control deviation (high-speed zone); in areas of 
moderate control deviation (slow-speed zone) it outputs a se- • Travel integral
quence of pulses. No positioning signals are output in the case • Number of changes in direction
of a small control deviation (adaptive or variable dead zone). • Alarm counter
The linear or rotary motion of the actuator is detected by the • Self-adjusting dead zone
mounting assembly and transferred to a high-quality potentio-
meter made of plastic conductive material over a shaft and a • Valve end limit position (e.g. for detection of valve seat wear 
non-floating gear transmission. or deposits)
The angular error of the pick-up in cases where the assembly is • Operating hours (also according to temperature and position-
mounted on a linear actuator is corrected automatically. ing ranges) as well as min./max. temperature
When connected in a 2-wire system, the SIPART PS2 draws its • Operating cycles of piezoelectric valves
power exclusively from the 4 to 20 mA setpoint signal. The elec- • Valve positioning time
tric power is also connected through the 2-wire bus signal with • Actuator leakages
PROFIBUS operation (SIPART PS2 PA). The same applies for the 
FOUNDATION Fieldbus version.
Pneumatic valve manifold with piezoelectric valve precontrol
The piezoelectric valve can release very short control pulses. 
This helps achieve a high positioning accuracy. The pilot ele-
ment is a piezoelectric bending converter which switches the 
pneumatic main control unit. The valve manifold is characterized 
by an extremely long service life.
Local operation
Local operation is performed using the built-in LCD and the 
three input keys. Switching between the operating levels Auto-
matic, Manual, Configuring and Diagnosis is possible at the 
press of a button.
Siemens FI 01 · 2009 US Edition 6/5
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical description
Status monitoring with 3-stage alarm concept Configuring
The intelligent electropneumatic SIPART PS2 positioner is The following settings, for example, can be configured in config-
equipped with additional monitoring functions. The status indi- uring mode as required with the SIPART PS2 positioner:
cations derived from these monitoring functions signal active • Input current range 0 to 20 mA or 4 to 20 mA
faults of the unit. The severity of these faults are graded using • Rising or falling characteristic at the setpoint input
"traffic light signaling", symbolized by a wrench in the colors • Positioning speed limit (setpoint ramp)
green, yellow and red (with SIMATIC PDM and Maintenance Sta- • Split-range operation; adjustable start-of-scale and full-scale 
tion): values
• Need for maintenance (green wrench) • Response threshold (dead zone); self-adjusting or fixed
• Urgent need for maintenance (yellow wrench) • Direction of action; rising or falling output pressure with rising 
• Imminent danger of unit failure or general failure (red wrench) setpoint
• Limits (start-of-scale and full-scale values) of positioning 
This allows users to put early measures into action in the run-up 
range
to a serious valve or actuator fault, which can prevent an immi-
• Limits (alarms) of the final control element position; minimum 
nent system shutdown. The fact that a fault indication is sig-
and maximum values
naled, such as the onset of a diaphragm break in the actuator or 
• Automatic "tight shut-off" (with adjustable response threshold)
the progressive sluggishness of a unit, enables the user to en-
• The travel can be corrected in accordance with the valve char-
sure system reliability at any time by means of suitable mainte-
acteristic.
nance strategies.
• Function of binary inputs
This three-stage alarm hierarchy also allows early detection and • Function of alarm output etc.
signaling of other faults, such as the static friction of a packing 
box, the wearing of a valve plug/seating, or precipitations or in- The key aspects of configuring the different SIPART PS2 ver-
crustations on the fittings. sions are largely identical.
These fault indications can be output either line-conducted over 
the alarm outputs (see above) of the positioner (max. 3), or via 
communication over the HART or fieldbus interfaces. In this 
case, the HART, PROFIBUS and FF versions of SIPART PS2 per-
mit a differentiation of the various fault indications, as well as a 
trend representation and histogram function of all key process 
variables with regard to the fittings.
The LCD of the device also displays the graded maintenance re-
6 quirements, complete with identification of the source of the fault.
Functional safety acc. to SIL 2
The SIPART PS2 positioners are also suitable for control of fit-
tings, which meet the special requirements of the functional 
safety up to SIL 2 to IEC 61508 or IEC 61511-1.
This is a single-action, venting positioner with an input of 4 to 
20 mA, PROFIBUS PA and FOUNDATION Fieldbus (FF) for 
mounting on pneumatic actuators with spring return.
The positioner vents the valve actuator on demand or in the 
event of a fault and puts the valve in the preset safety position.
This positioner meets the following requirements:
• Functional safety up to SIL 2 to IEC 61508 or IEC 61511-1, 
from firmware version C4 or higher for safe venting
• Explosion protection for the versions 6DR5...-.E...
• Electromagnetic compatibility to EN 61326/A1, Appendix A.1
SIPART PS 2 as "intelligent solenoid valve"
Open / Close valves, safety fittings in particular, are generally 
pneumatically controlled over a solenoid valve. If you use SI-
PART PS2 instead of this type of solenoid valve, the positioner 
performs two tasks in a single device (without extra wiring)
• Firstly, it switches the fitting off on demand by venting the ac-
tuator (functional safety acc. to SIL 2 (see above)
• Secondly, it can perform a Partial Stroke Test at regular inter-
vals (1 - 365 days), which prevents the blocking of the fitting, 
e.g. due to corrosion or furring.
As in this case SIPART PS2 is constantly working in normal op-
eration (e.g. 99 % position), it also acts as a permanent test func-
tion for the pneumatic output circuit, which is not usually possi-
ble when using a solenoid valve. 
Solenoid valves on control valves can also not normally be 
tested during operation. They are therefore not necessary when 
using SIPART PS 2 with a 4-wire connection system as the vent-
ing is carried out on demand by SIPART PS2. This means that on 
control valves, both the control function and the shut-off function 
can be carried out by a single device. 
6/6 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical description

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SIPART PS2, electropneumatic positioner, function diagram
Siemens FI 01 · 2009 US Edition 6/7
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© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
all versions
■ Technical specifications • Noise (digitally controlled) 10 ... 200 Hz; 1 (m/s²)²/Hz 
to DIN EN 60068-2-64/08.95 (3.28 (ft/s²)²/Hz)
 
SIPART PS2 (all versions) 200 ... 500 Hz; 0.3 (m/s²)²/Hz 
(0.98 (ft/s²)²/Hz)
General data
4 hours/axis
Travel range (linear actuators) 3 ... 130 mm (0.12 ... 5.12 inch) 
(angle of feedback shaft 16 ... 90°) • Recommended continuous duty ≤ 30 m/s² (≤ 98.4 ft/s²) without res-
range of the complete fitting onance sharpness
Angle of rotation 30 ... 100°
(part-turn actuators) Weight, basic device
Installation • Plastic casing Approx. 0.9 kg (1.98 lb)
• Metal casing, aluminium Approx. 1.3 kg (2.86 lb)
• On linear actuators Using attachment set • Metal casing, stainless steel Approx. 3.9 kg (8.58 lb)
6DR4004-8V and where necessary 
• Metal casing EEx d version Approx. 5.2 kg (11.46 lb)
with an additional lever arm 
6DR4004-8L on actuators accord- Dimensions See "Dimensional drawings"
ing to IEC 534-6 (NAMUR) with 
Climate class 4 To DIN EN 60721-3-4
ribs, bars or flat face
• Storage1) 1K5, but -40 ... +80 °C 
• On part-turn actuators Using attachment set 
(1K5, but -40 ... +176 °F)
6DR4004-8D on actuators with 
mounting plane according to • Transport1) 2K4, but -40 ... +80 °C
VDI/VDE 3845 and DIN 3337: (2K4, but -40 ... +176 °F)
The required mounting console 
• Operation2) 4K3, but -30 ... +80 °C3)
has to be provided on the actuator 
(4K3, but -22 ... +176 °F)
side; shaft with groove and female 
thread M6 Certificate and approvals
Controller Classification according to pres- For gases of fluid group 1, com-
sure equipment plies with requirements of article 3, 
• Five-point switch Self-adjusting
directive (DRGL 97/23/EC) paragraph 3 (sound engineering 
• Dead zone practice SEP)
- dEbA = Auto Self-adjusting or can be set as Pneumatic data
fixed value
- dEbA = 0.1 ... 10% Self-adjusting or can be set as Power supply Compressed air, nitrogen or 
fixed value cleaned natural gas
6 A/D converter • Pressure 1.4 ... 7 bar (20.3 ... 101.5 psi): Sufficiently greater than max. drive 
• Scan time 10 ms pressure (actuating pressure)
• Resolution ≤ 0.05% Air quality to ISO 8573-1
• Transmission error ≤ 0.2% • Solid particle size and density Class 2
• Temperature effect ≤ 0.1%/10 K (≤ 0.1%/18 °F) • Pressure dew point Class 2 (min. 20 K (36 °F) below 
Cycle time ambient temperature)
• 20 mA/HART device 20 ms • Oil content Class 2
• PA device 60 ms Unthrottled flow
• FF device 60 ms (min. loop time) • Inlet air valve 
(ventilate actuator)4)
Binary input BE1 (terminals 9/10; Suitable only for floating contact; - 2 bar (29 psi) 4.1 Nm³/h (18.1 USgpm)
electrically connected to the basic max. contact load < 5 mA with 3 V
- 4 bar (58 psi) 7.1 Nm³/h (31.3 USgpm)
device)
- 6 bar (87 psi) 9.8 Nm³/h (43.1 USgpm)
Degree of protection IP66 to EN 60 529/NEMA 4x
• Outlet air valve
CE marking Conformity as regards EMC Direc- (exhaust actuator)4)
tive 89/336 EC in accordance with - 2 bar (29 psi) 8.2 Nm³/h (36.1 USgpm)
the following standards - 4 bar (58 psi) 13.7 Nm³/h (60.3 USgpm)
EMC requirements EN 61326/A1 Appendix A.1 and - 6 bar (87 psi) 19.2 Nm³/h (84.5 USgpm)
NAMUR NE21 August 98
Valve leakage < 6⋅10-4 Nm³/h (0.0026 USgpm)
Material
Throttle ratio Adjustable up to ∞ : 1
• Housing
Power consumption in the < 3.6⋅10-2 Nm³/h (0.158 USgpm)
- 6DR5..0-... (plastic) Glass-fiber-reinforced Macrolon controlled state
- 6DR5..1-... (metal) GD AISi12 Types of actuators
- 6DR5..2-... (stainless steel) Austenitic stainless steel mat. • In casing Single-action and double-action
No. 1.4581 • In aluminium casing Single-action
• In flameproof casing Single-action and double-action
- 6DR5..5-... (metal, pressure- GK AISi12
• In stainless steel casing Single-action and double-action
proof)
1)
• Pressure gauge block Aluminium AIMgSi, anodized During commissioning at ≤ 0 °C (≤ 32 °F) make sure that the valves are 
flushed long enough with the dry medium.
Vibration resistance 2) At ≤ -10 °C (14 °F) the display refresh rate of the LCD is limited. Only T4 is 
• Harmonic oscillations 3.5 mm (0.14 inch), 2 ... 27 Hz permissible when using Iy module.
3)
(sine-wave) according to 3 cycles/axis -25 ... +75 °C (-13 ... +167 °F) for 6DR55..-0G..., 6DR56..-0G..., 
DIN EN 60062-2-6/05.96 6DR55..-0D... and 6DR56..-0D...
98.1 m/s² (321.84 ft/s²), 4) With EEx d version (6DR5..5-...) the values are reduced by approx. 20%.
27 ... 300 Hz, 3 cycles/axis
• Bumping (half-sine) 150 m/s² (492 ft/s²), 6 ms, 
to DIN EN 60068-2-29/03.95 1000 shocks/axis
6/8 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2
■ Technical specifications
 
SIPART PS2 Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
Explosion protection to ATEX Without Ex d Ex ia/ib Ex n
II 2 G Ex d II C T6 II 2 G Ex ia/ib II C T6 II 3 G Ex nA nL[nL] IIC T6
Dust
II 3 D Ex tD A22 IP66 
T100°C
Mounting location Zone 1 Zone 1 Zone 2/22
Permissible ambient temperature for -30 ... +80 °C T4: -30 ... +80 °C (-22 ... +176 °F)
operation (-22 ... +176 °F)
T5: -30 ... +65 °C (-22 ... +149 °F)
At ≤ -10 °C (+14 °F) the display refresh 
rate of the LCD is limited. T6: -30 ... +50 °C (-22 ... +122 °F)
(for basic devices with EEX ia/ib and 
EEx n protection the following applies: 
Only T4 is permissible when using Iy 
module.)
Electrical data
Input
2-wire connection (terminals 6/8)
Rated signal range 4 ... 20 mA 4 ... 20 mA 4 ... 20 mA 4 ... 20 mA
Current to maintain the power supply ≥ 3.6 mA ≥ 3.6 mA ≥ 3.6 mA ≥ 3.6 mA
Required load voltage 
UB (corresponds to Ω at 20 mA)
• Without HART (6DR50..)
- Typical 6.36 V (corresponds to 6.36 V (corresponds to 7.8 V (corresponds to 7.8 V (corresponds to 
318 Ω) 318 Ω) 390 Ω) 390 Ω) 6
- Max. 6.48 V (corresponds to 6.48 V (corresponds to 8.3 V (corresponds to 8.3 V (corresponds to 
324 Ω) 324 Ω) 415 Ω) 415 Ω)
• Without HART (6DR53..)
- Typical 7.9 V (corresponds to – – –
395 Ω)
- Max. 8.4 V (corresponds to – – –
420 Ω)
• With HART (6DR51..)
- Typical 6.6 V (corresponds to 6.6 V (corresponds to – –
330 Ω) 330 Ω)
- Max. 6.72 V (corresponds to 6.72 V (corresponds to – –
336 Ω) 336 Ω)
• With HART (6DR52..)
- Typical – 8.4 V (corresponds to 8.4 V (corresponds to 8.4 V (corresponds to 
420 Ω) 420 Ω) 420 Ω)
- Max. – 8.8 V (corresponds to 8.8 V (corresponds to 8.8 V (corresponds to 
440 Ω) 440 Ω) 440 Ω)
• Static destruction limit ± 40 mA – –
Internal capacitance Ci
• Without HART – – 22 nF 22 nF (at "nL")
• With HART – – 7 nF 7 nF (at "nL")
Internal inductance Li
• Without HART – – 0.12 mH 0.12 mH (at "nL")
• With HART – – = 0.24 mH 0.24 mH (at "nL")
For connection to power circuits with – – intrinsically safe at "nA" and "tD":
the following max. ratings Ui = 30 V DC Un = 30 V DC
Ii = 100 mA In = 100 mA
Pi = 1 W at "nL":
Ui = 30 V DC
Ii = 100 mA
Siemens FI 01 · 2009 US Edition 6/9
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2
SIPART PS2 Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
3-/4-wire device (terminals 2/4 
and 6/8) (6DR52.. and 6DR53..)
• Power supply UH 18 ... 35 V DC 18 ... 35 V DC 18 ... 30 V DC 18 ... 30 V DC
• Current consumption IH (UH - 7.5 V)/2.4 kΩ [mA] (UH - 7.5 V)/2.4 kΩ [mA] (UH - 7.5 V)/2.4 kΩ [mA] (UH - 7.5 V)/2.4 kΩ [mA]
• Internal capacitance Ci – – ≤ 22 nF –
• Internal inductance Li – – ≤ 0.12 mH –
For connection to power circuits with – – intrinsically safe Un = 30 V DC
the following max. ratings Ui = 30 V DC In = 100 mA
Ii = 100 mA at "nL":
Pi = 1 W Ui = 30 V DC
Ii = 100 mA
Current input IW
Rated signal range 0/4 ... 20 mA 0/4 ... 20 mA 0/4 ... 20 mA 0/4 ... 20 mA
Load voltage at 20 mA ≤ 0.2 V (corresponds to ≤ 0.2 V (corresponds to ≤ 1 V (corresponds to ≤ 1 V (corresponds to 
10 Ω) 10 Ω) 50 Ω) 50 Ω)
Internal capacitance Ci – – 22 nF 22 nF (at "nL")
Internal inductance (Li) – – 0.12 mH 0.12 mH (at "nL")
For connection to power circuits with – – intrinsically safe at "nA" and "tD":
the following max. ratings Ui = 30 V DC Un = 30 V DC
Ii = 100 mA In = 100 mA
Pi = 1 W at "nL":
Ui = 30 V DC
6 Ii = 100 mA
Electrical isolation between UH and IW between UH and IW between UH and IW between UH and IW
(2 intrinsically safe cir-
cuits)
Test voltage 840 V DC (1 s) 840 V DC (1 s) 840 V DC (1 s) 840 V DC (1 s) 
Connections
• Electric Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 
AWG28-12 AWG28-12 AWG28-12 AWG28-12
Cable gland M20 x 1.5 or EEx d certified cable Cable gland M20 x 1.5 or Cable gland M20 x 1.5 or 
½-14 NPT gland M20 x 1.5, ½-14 NPT ½-14 NPT
½-14 NPT or M25 x 1.5
• Pneumatic Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN 
EN ISO 228-1 or ¼-18 EN ISO 228-1 or ¼-18 EN ISO 228-1 or ¼-18 EN ISO 228-1 or ¼-18 
NPT NPT NPT NPT
External position sensor (potentiometer or NCS; as option) with the following max. ratings
• Uo – – 5 V 5 V
• Io (static) – – 75 mA 75 mA
• Is (short-time) – – 160 mA -
• Po – – 120 mW 120 mW
Maximum permissible external capaci- – – 1 μF 1 μF
tance Co
Maximum permissible external induc- – – 1 mH 1 mH
tance Lo
6/10 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2 PA
■ Technical specifications
 
SIPART PS2 PA Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
Explosion protection to Without Ex d Ex ia/ib Ex n
ATEX II 2 G Ex d II C T4/T5/T6 II 2 G Ex ia/ib II C T6 II 3 G Ex nA nL[nL] IIC T6
Dust
II 3 D Ex tD A22 IP66 
T100°C
Mounting location Zone 1 Zone 1 Zone 2/22
Permissible ambient temperature for -30 ... +80 °C T4: -30 ... +80 °C T4: -30 ... +80 °C T4: -20 ... +75 °C 
operation (-22 ... +176 °F) (-22 ... +176 °F) (-22 ... +176 °F) (-4 ... +167 °F)
At ≤ -10 °C (+14 °F) the display refresh T5: -30 ... +65 °C T5: -30 ... +65 °C T5: -20 ... +65 °C
rate of the LCD is limited. (-22 ... +149 °F) (-22 ... +149 °F) (-4 ... +149 °F)
(for basic devices with Ex protection T6: -30 ... +50 °C T6: -30 ... +50 °C T6: -20 ... +50 °C
the following applies: Only T4 is per- (-22 ... +122 °F) (-22 ... +122 °F) (-4 ... +122 °F)
missible when using Iy module.)
Electrical data
Input
Power supply (terminals 6/7) Bus-supplied Bus-supplied Bus-supplied Bus-supplied
Bus voltage 9 ... 32 V 9 ... 32 V 9 ... 24 V 9 ... 32 V
• Bus connection with supply unit – Intrinsically safe at "nA" and "tD":
FISCO Un = 32 V DC
at "nL":
FNICO
- Max. supply voltage Uo – – 17.5 V 17.5 V
- Max. short-circuit current Io – – 380 mA 570 mA
- Max. power P 6o – 5.32 W –
• Bus connection with barrier – intrinsically safe at "nL"
- Max. supply voltage (Uo) – – 24 V 32 V
- Max. short-circuit current (Io) – – 250 mA –
- Max. power Po – – 1.2 W –
Current consumption 11.5 mA ± 10% 11.5 mA ± 10% 11.5 mA ± 10% 11.5 mA ± 10%
Additional fault current 0 mA 0 mA 0 mA 0 mA
Effective internal inductance Li – – 8 µH 8 µH (at "nL")
Effective internal capacitance Ci – – Negligible Negligible
Safety shutdown can be activated with 
coding bridge (terminals 81/82; elec-
trically isolated from the basic device)
• Input resistance > 20 kΩ > 20 kΩ > 20 kΩ > 20 kΩ
• Signal status "0" (shutdown active) 0 ... 4.5 V or unused 0 ... 4.5 V or unused 0 ... 4.5 V or unused 0 ... 4.5 V or unused
• Signal status "1" (shutdown not ac- 13 ... 30 V 13 ... 30 V 13 ... 30 V 13 ... 30 V
tive)
• Effective Internal capacitance Ci – – Negligible Negligible
• Effective internal inductance Li – – Negligible Negligible
• For connection to power supply with – – Intrinsically safe At "nA", "nL" and "tD"
- Max. supply voltage Ui – – 30 V 30 V
- Max. short-circuit current Ii – – 100 mA 100 mA
- Maximum power Pi – – 1 W –
Electrical isolation Between basic device Between basic device The basic device and the Between basic device 
and the input for safety and the input for safety input to the safety shut- and the input for safety 
shutdown, as well as the shutdown, as well as the down, as well as the out- shutdown, as well as the 
outputs of the option outputs of the option puts of the option outputs of the option 
modules modules modules, are individual, modules
intrinsically-safe circuits
Test voltage 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s
Siemens FI 01 · 2009 US Edition 6/11
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2 PA
SIPART PS2 PA Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
Communication Layers 1 and 2 according to PROFIBUS PA, transmission technique according to IEC 1158-2;
slave function; layer 7 (protocol layer) according to PROFIBUS DP,
EN 50170 standard with the extended PROFIBUS functions
(all data acyclic, manipulated variable, feedbacks and status also cyclic)
C2 connections Four connections to master class 2 are supported, 
automatic connection setup 60 s after break in communication
Device profile PROFIBUS PA profile B, version 3.0, more than 150 objects
Response time to master message Typical 10 ms
Device address 126 (when delivered)
PC parameterizing software SIMATIC PDM; supports all device objects. The software is not included in the scope of delivery.
Connections
• Electric Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 
AWG28-12 AWG28-12 AWG28-12 AWG28-12
Cable gland M20 x 1.5 or EEx d certified cable Cable gland M20 x 1.5 or Cable gland M20 x 1.5 or 
½-14 NPT gland M20 x 1.5, ½-14 NPT ½-14 NPT
½-14 NPT or M25 x 1.5
• Pneumatic Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN 
EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT)
External position sensor
(potentiometer or NCS; as option) with 
the following max. ratings
• Uo – – 5 V 5 V
• Io (static) – – 75 mA 75 mA
• Is (short-time) – – 160 mA -
6 • Po – – 120 mW 120 mW
• Maximum permissible external ca- – – 1 μF 1 μF
pacitance Co
• Maximum permissible external in- – – 1 mH 1 mH
ductance Lo
6/12 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2 FF
■ Technical specifications
 
SIPART PS2 FF Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
Explosion protection to Without Ex d Ex ia/ib Ex n
ATEX II 2 G Ex d II C T4/T5/T6 II 2 G Ex ia/ib II C T6 II 3 G Ex nA nL[nL] IIC T6
Dust
II 3 D Ex tD A22 IP66 
T100°C
Mounting location Zone 1 Zone 1 Zone 2/22
Permissible ambient temperature for -30 ... +80 °C T4: -30 ... +80 °C T4: -30 ... +80 °C T4: -20 ... +75 °C 
operation (-22 ... +176 °F) (-22 ... +176 °F) (-22 ... +176 °F) (-4 ... +167 °F)
At ≤ -10 °C (+14 °F) the display refresh T5: -30 ... +65 °C T5: -30 ... +65 °C T5: -20 ... +65 °C
rate of the LCD is limited. (-22 ... +149 °F) (-22 ... +149 °F) (-4 ... +149 °F)
(for basic devices with Ex protection T6: -30 ... +50 °C T6: -30 ... +50 °C T6: -20 ... +50 °C
the following applies: Only T4 is per- (-22 ... +122 °F) (-22 ... +122 °F) (-4 ... +122 °F)
missible when using Iy module.)
Electrical data
Input
Power supply (terminals 6/7) Bus-supplied Bus-supplied Bus-supplied Bus-supplied
Bus voltage 9 ... 32 V 9 ... 32 V 9 ... 24 V 9 ... 32 V
• Bus connection with supply unit – Intrinsically safe at "nA" and "tD":
FISCO Un = 32 V DC
at "nL":
FNICO
- Max. supply voltage Uo – – 17.5 V 17.5 V
- Max. short-circuit current Io – – 380 mA 570 mA
- Max. power P 6o – 5.32 W –
• Bus connection with barrier – intrinsically safe at "nL"
- Max. supply voltage (Uo) – – 24 V 32 V
- Max. short-circuit current (Io) – – 250 mA –
- Max. power Po – – 1.2 W –
Current consumption 11.5 mA ± 10% 11.5 mA ± 10% 11.5 mA ± 10% 11.5 mA ± 10%
Additional fault current 0 mA 0 mA 0 mA 0 mA
Effective internal inductance Li – – 8 µH 8 µH (at "nL")
Effective internal capacitance Ci – – Negligible Negligible
Safety shutdown can be activated with 
coding bridge (terminals 81/82; elec-
trically isolated from the basic device)
• Input resistance > 20 kΩ > 20 kΩ > 20 kΩ > 20 kΩ
• Signal status "0" (shutdown active) 0 ... 4.5 V or unused 0 ... 4.5 V or unused 0 ... 4.5 V or unused 0 ... 4.5 V or unused
• Signal status "1" (shutdown not ac- 13 ... 30 V 13 ... 30 V 13 ... 30 V 13 ... 30 V
tive)
• Effective Internal capacitance Ci – – Negligible Negligible
• Effective internal inductance Li – – Negligible Negligible
• For connection to power supply with – – Intrinsically safe At "nA", "nL" and "tD"
- Max. supply voltage Ui – – 30 V 30 V
- Max. short-circuit current Ii – – 100 mA 100 mA
- Maximum power Pi – – 1 W –
Electrical isolation Between basic device Between basic device The basic device and the Between basic device 
and the input for safety and the input for safety input to the safety shut- and the input for safety 
shutdown, as well as the shutdown, as well as the down, as well as the out- shutdown, as well as the 
outputs of the option outputs of the option puts of the option outputs of the option 
modules modules modules, are individual, modules
intrinsically-safe circuits
Test voltage 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s
Siemens FI 01 · 2009 US Edition 6/13
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
SIPART PS2 FF
SIPART PS2 FF Basic device Basic device Basic device Basic device 
without Ex protection with Ex d protection with Ex ia/ib protection with Ex n/dust protec-
(flameproof casing) tion
Communication
Communications group and class According to technical specification of the Fieldbus Foundation for H1 communication
Function blocks Group 3, Class 31PS (publisher, subscriber)
1 resource block (RB2)
1 analog output function block (AO)
1 PID function block (PID)
1 transducer block (standard advanced positioner valve)
Execution times of the blocks AO: 50 ms
PID: 80 ms
Physical layer profile 123, 511
FF registration Tested with ITK 5.0
Device address 22 (when delivered)
Connections
Electric Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 Screw terminals 2.5 
AWG28-12 AWG28-12 AWG28-12 AWG28-12
Cable gland M20 x 1.5 or EEx d certified cable Cable gland M20 x 1.5 or Cable gland M20 x 1.5 or 
½-14 NPT gland M20 x 1.5, ½-14 NPT ½-14 NPT
½-14 NPT or M25 x 1.5
Pneumatic Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN Female thread G¼ DIN 
EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT) EN ISO 228-1 (¼-18 NPT)
External position sensor
(potentiometer or NCS; as option)
• Uo – – < 5 V < 5 V
• Io – – < 75 mA < 75 mA
6 • Is – – < 160 mA < 160 mA
• Po – – < 120 mW < 120 mW
Maximum permissible external capaci- – – < 1 μF < 1 μF
tance Co
Maximum permissible external induc- – – < 1 mH < 1 mH
tance Lo
6/14 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
Option modules
■ Technical specifications
 
Option modules Without Ex protection With Ex protection Ex ia/ib With Ex n/dust protection
(EEx d also)
Ex protection to ATEX – II 2G Ex ia/ib II C T4/T5/T6 (only Ex n
in conjunction with) II 3 G Ex nA nL[nL] IIC T6
Dust
II 3 D Ex tD A22 IP66 T100°C
Mounting location – Zone 1 Zone 2/22
Permissible ambient temperature for opera- -30 ... +80 °C (-22 ... +176 °F) T4: -30 ... +80 °C (-22 ... +176 °F)1)
tion
(For devices with Ex protection: Only in con- T5: -30 ... +65 °C (-22 ... +149 °F)
1)
junction with the basic device 6DR5... -.E.... T6: -30 ... +50 °C (-22 ... +122 °F)1)
Only T4 is permissible when using Iy module)
Alarm module 6DR4004-8A (without Ex protec- 6DR4004-6A (with Ex protection) 6DR4004-6A (with Ex protection)
tion) 
Binary alarm outputs A1, A2 and alarm output
Signal status High (not responded) Active, R = 1 kΩ, +3/-1%* ≥ 2.1 mA ≥ 2.1 mA
Signal status Low* (responded) Disabled, IR < 60 µA ≤ 1.2 mA ≤ 1.2 mA
(* Low is also the status when the basic 
device is faulty or has not electric power sup- (* When used in the flameproof (Switching threshold with sup- (Switching threshold with sup-
ply) casing the current consumption ply to EN 60947-5-6: UH = 8.2 V, ply to EN 60947-5-6: UH = 8.2 V, 
is limited to 10 mA per output.) Ri = 1kΩ) Ri = 1kΩ)
Internal capacitance Ci – 5.2 nF 5.2 nF (at "nL")
Internal inductance Li – Negligible Negligible
Power supply UH ≤ 35 V – –
Connection to power circuits with with the fol- – intrinsically safe switching at "nA" and "tD":
lowing max. ratings amplifier EN 60947-5-6 Un = 15.5 V DC
Uo =15.5 V DC 
Ik = 25 mA, P = 64 mW at "nL": 6
Ui = 15.5 V DC
Ii = 25 mA
Binary input BE2
• Electrically connected to the basic device
- Signal status 0 Floating contact, open Floating contact, open Floating contact, open
- Signal status 1 Floating contact, closed Floating contact, closed Floating contact, closed
- Contact load 3 V, 5 μA 3 V, 5 μA 3 V, 5 μA
• Electrically isolated from the basic device
- Signal status 0 ≤ 4.5 V or open ≤ 4.5 V or open ≤ 4.5 V or open
- Signal status 1 ≥ 13 V ≥ 13 V ≥ 13 V
- Natural resistance ≥ 25 kΩ ≥ 25 kΩ ≥ 25 kΩ
Static destruction limit ± 35 V – –
Internal inductance and capacitance – Negligible Negligible
Connection to power circuits with the follow- – Intrinsically safe Ui = 25.2 V at "nA" and "tD":
ing max. ratings Un = 25.2 V DC
at "nL":
Ui = 25.2 V DC
Electrical isolation The 3 outputs, the input BE2 and the basic device are electrically isolated from each other.
Test voltage 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s
1) Only in conjunction with the basic device 6DR5...-E..... With Iy module only T4 permitted.
Siemens FI 01 · 2009 US Edition 6/15
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
Option modules
Option modules Without Ex protection With Ex protection EEx ia/ib With Ex n/dust protection
SIA module 6DR4004-8G (without Ex protec- 6DR4004-6G (with Ex protection) 6DR4004-6G (with Ex protection)
Limit switches with slot-type initiators tion) (not for Ex-d version)
and alarm output
Limit switches A1, A2 2-wire connection 2-wire connection 2-wire connection
Ex protection Without II 2 G EEx ia/ib IIC T6 II 3 G EEx nA L [L] IIC T6
Connection 2-wire system to EN 60947-5-6 (NAMUR), for switching amplifier to be connected on load side
2 slot-type initiators Type SJ2-SN Type SJ2-SN Type SJ2-SN
Function NC (normally closed) NC (normally closed) NC (normally closed)
Connection to power circuits with the fol- nominal voltage 8 V intrinsically safe switching at "nA" and "tD":
lowing max. ratings Current consumption: amplifier EN 60947-5-6 Un = 15.5 V DC
≥ 3 mA (limit value not Ui = 15.5 V DC Pn = 64 mW
responded) Ii = 25 mA, P at "nL":
≤ 1 mA (limit value i = 64 mW Ui = 15.5 V DC
responded) Ii = 25 mA
Internal capacitance – 41 nF 41 nF (at "nL")
Internal inductance – 100 mH 100 mH (at "nL")
Electrical isolation The 3 outputs are electrically isolated from the basic device.
Test voltage 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s
Alarm output
Connection 2-wire system to EN 60947-5-6 (NAMUR), for switching amplifier to be connected on load side
UH = 8.2 V, Ri = 1 kΩ
Signal status High (not active) R = 1.1 kΩ ≥ 2.1 mA ≥ 2.1 mA
Signal status Low (active) Ri = 10 kΩ ≤ 1.2 mA ≤ 1.2 mA
Internal capacitance Ci – 5.2 nF 5.2 nF (bei „nL“)
6 Internal Inductance Li – Negligible Negligible
Power supply UH UH ≤ 35 V DC, I ≤ 20 mA – –
For connection to power with the following – intrinsically safe switching ampli- at „nA“ and „tD“:
max. ratings fier EN 60947-5-6 Un = 15.5 V DC
Ui = 15.5 V DC at „nL“:
Ii = 25 mA Ui = DC 15.5 V
Pi = 64 mW Ii = 25 mA
Limit value contact module 6DR4004-8K 6DR4004-6K 6DR4004-6K
Limit switches with mechanical ground (not for EEx d version)
contact and alarm output
Limit switches A1, A2
Ex protection without II 2 G Ex ia/ib IIC T6 II 3 G Ex nL [nL] IIC T6 
(in progress)
Max. switching current AC/DC 4 A Connection to intrinsically safe Connection to circuits with maxi-
circuit with maximum values: mum values:
Ui = 30 V, at "nL":
Ii = 100 mA, Ui = 30 V 
Pi = 750 mW Ii = 100 mA,
Max. switching voltage AC/DC 250 V / 24 V 30 V DC
Internal capacitance Ci – Negligible Negligible
Internal inductance Li – Negligible Negligible
Electrical isolation The 3 outputs are electrically isolated from the basic device.
Test voltage 3150 V DC, 2s 3150 V DC, 2 s 3150 V DC, 2 s
Alarm output
Connection 2-wire system to EN 60947-5-6 (NAMUR), for switching amplifier to be connected on load side
UH = 8.2 V, Ri = 1 kΩ
Signal status High (not active) R = 1.1 kΩ ≥ 2.1 mA ≥ 2.1 mA
Signal status Low (active) Ri = 10 kΩ ≤ 1.2 mA ≤ 1.2 mA
Internal capacitance Ci – 5.2 nF 5.2 nF (bei „nL“)
Internal Inductance Li – Negligible Negligible
Power supply UH UH ≤ 35 V DC, I ≤ 20 mA – –
For conncetion to power with the following – Intrinsically safe switching ampli- at „nL“:
max. ratings fier EN 60947-5-6 Ui = 15.5 V DC
Ui = 15.5 V DC Ii = 25 mA
Ii = 25 mA
Pi = 64 mW
6/16 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Technical specifications
Option modules
Option modules Without Ex protection With Ex protection EEx ia/ib With Ex n/dust protection
Iy module 6DR4004-8J (without Ex protection) 6DR4004-6J (with Ex protection) 6DR4004-6J (with Ex protection)
DC output for position feedback 2-wire connection 2-wire connection 2-wire connection
Nominal signal range 4 ... 20 mA, short-circuit-proof 4 ... 20 mA, short-circuit-proof 4 ... 20 mA, short-circuit-proof
Total operating range 3.6 ... 20.5 mA 3.6 ... 20.5 mA 3.6 ... 20.5 mA
Power supply UH +12 ... +35 V +12 ... +30 V +12 ... +30 V
External load RB [kΩ] ≤ (UH [V] - 12 V) /i [mA] ≤ (UH [V] - 12 V) /i [mA] ≤ (UH [V] - 12 V) /i [mA]
Transmission error ≤ 0.3% ≤ 0.3% ≤ 0.3%
Temperature effect ≤ 0.1%/10 K (≤ 0.1%/18 °F) ≤ 0.1%/10 K (≤ 0.1%/18 °F) ≤ 0.1%/10 K (≤ 0.1%/18 °F)
Resolution ≤ 0.1% ≤ 0.1% ≤ 0.1%
Residual ripple ≤ 1% ≤ 1% ≤ 1%
Internal capacitance Ci – 11 nF 11 nF (at "nL")
Internal inductance Li – Negligible Negligible
For connection to power circuits with the Intrinsically safe: at "nA" and "tD"
following max. ratings Ui = 30 V DC Un = 30 V DC 
Ii = 100 mA In = 100 mA
Pi = 1 W (only T4) Pn = 1 W (only T4)
at "nL":
Ui = 30 V DC
Ii = 100 mA
Electrical isolation Electrically isolated from the Electrically isolated from the Electrically isolated from the 
basic device basic device basic device
Test voltage 840 V DC, 1 s 840 V DC, 1 s 840 V DC, 1 s
NCS sensor
(not for EEx d version) 6
Position range
• Linear actuator 3 ... 130 mm (0.12 ... 5.12 inch), 3 ... 130 mm (0.12 ... 5.12 inch),
to 200 mm (7.87 inch) on request to 200 mm (7.87 inch) on request
• Part-turn actuator 30° ... 100° 30° ... 100°
Linearity (after correction by SIPART PS2)
• Linear actuator ± 1% ± 1%
• Part-turn actuator ± 1% ± 1%
Hysteresis ± 0.2% ± 0.2%
Continuous working temperature -40 ... +85 °C (-40 ... +185 °F), -40 ... +85 °C (-40 ... +185 °F), 
extended temperature range on extended temperature range on 
request request
For connection to power circuits with the Intrinsically safe at "nL":
following max. ratings Ui = 5 V DC Ui = 5 V DC
Internal capacitance Ci - 10 nF 10 nF (at "nL")
Internal inductance Li - 240 mH 240 mH (at "nL")
Degree of protection of casing IP68/NEMA 4X IP68/NEMA 4X
Siemens FI 01 · 2009 US Edition 6/17
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Ordering data
SIPART PS2, PS2 PA, PS2 FF
Selection and Ordering data Order No. Selection and Ordering data Order No.
Electropneumatic positioner 6 D R 5 777 - 0 7777 - 77A7 Electropneumatic positioner 6 D R 5 777 - 0 7777 - 77A7
SIPART PS2, Ex protection without, SIPART PS2, Ex protection without, 
EEx ia/ib and EEx n EEx ia/ib and EEx n
Version Optional modules
2-wire (4 to 20 mA) Installed, incl. 2nd cable gland
• Without HART } 0 Without } 0
• With HART, not explosion-protected } 1 Iy module for position feedback 1
2-, 3-, 4-wire (0/4 to 20 mA) signal (4 ... 20 mA) (6DR4004-.J)
• With HART, explosion-protected 2 EMC filter module for external } 2
position sensor (C73451-A430-D23)
• Without HART, not explosion- } 3
protected Iy module and EMC filter module for 3
external position sensor
PROFIBUS PA connection } 5
FOUNDATION Fieldbus connection } 6 Customer-specific design
Without } 0
For actuator
Single-action } 1 Brief instructions
Double-action } 2 German/English } A
French/Spanish/Italian B
Casing
Plastic } 0 Mounted pressure gauge block
Aluminum; only single-action } 1 1 Without } 0
Stainless steel (without window) } 2 Single-action G¼, scaling MPA and 1
bar
Explosion protection Double-action G¼, scaling MPA and 2
Without } N bar
With explosion protection EEx ia/ib } E Single-action ¼-18 NPT, scaling 3
(CENELEC/ATEX/FM/CSA) MPA and psi
With explosion protection EEx n, Double-action ¼-18 NPT, scaling 4
(CENELEC/ATEX) MPA and psi
• For zone 2 and zone 22 (dust), D
Further designs Order code
casing: aluminium or stainless steel; 
6 each with no window in the cover Add "-Z" to Order No. and specify • For zone 21)2) G Order code.
casing: aluminium or plastic; each 
Version with stainless steel sound A40
with window in the cover
absorbers
Connection thread standard with stainless steel enclo-
electrical/pneumatic sures
M20 x 1.5 / G¼ } G Measuring point number (TAG No.) Y173)
½-14 NPT / ¼-18 NPT } N HART tag max. 8 characters,
M20 x 1.5 / ¼-18 NPT M max. 32 characters for 
½-14 NPT / G¼ P PROFIBUS PA, FOUNDATION Field-
bus and 4 ... 20 mA version,
With plug M12 / G¼ R specify in plain text: Y17: ........
With plug M12 / ¼-18 NPT S Measuring point description Y153)
HART tag max. 16 characters,
Limit monitor
max. 32 characters for 
Installed, incl. 2nd cable gland
PROFIBUS PA, FOUNDATION Field-
Without } 0 bus and 4 ... 20 mA version,
Alarm module; electronic 1 specify in plain text: Y15: ........
(6DR4004-.A)
Measuring point text Y163)
SIA module; slot-type initiators 2
HART tag max. 24 characters,
(6DR4004-.G)
max. 32 characters for 
Limit value contact module (mechani- 3 PROFIBUS PA, FOUNDATION Field-
cal switching contacts (6DR4004-.K) bus and 4 ... 20 mA version,
specify in plain text: Y16: ........
TAG plate made of stainless steel, A203)
3-line
Text line 1: Plain text from Y17
Text line 2: Plain text from Y15
Text line 3: Plain text from Y16
Preset bus address Y253)
Specify in plain text: Y25: ........
} Available ex stock
1) Maximum impact energy to the casing: 1 Joule.
2) For device versions in plastic casing: it is essential to prevent electrostatic 
charging. Maximum torque of the cable gland: 67 Nm.
3) Only for plastic casing, for other casings on request.
6/18 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Ordering data
SIPART PS2 EEx-d, PS2 EEx-d PA, PS2 EEx-d FF
Selection and Ordering data Order No. Selection and Ordering data Order No.
Electropneumatic positioner 6 D R 5 77 5 - 0 E777 - 77A7 Electropneumatic positioner 6 D R 5 77 5 - 0 E777 - 77A7
SIPART PS2, Ex protection EEx-d, SIPART PS2, Ex protection EEx-d, 
aluminium housing, without cable aluminium housing, without cable 
gland gland
Version Further designs Order code
2-wire (4 to 20 mA) Add "-Z" to Order No. and specify 
• Without HART } 0 Order Code.
• With HART, not explosion-protected 1
Measuring point number (TAG No.) Y17
2-, 3-, 4-wire (0/4 to 20 mA) HART tag max. 8 characters,
• With HART } 2 max. 32 characters for PROFIBUS PA 
• Without HART, not explosion- D) 3 and FOUNDATION Fieldbus version,
protected specify in plain text: Y17: ........
PROFIBUS PA connection 5 Measuring point description Y15
FOUNDATION Fieldbus connection 6 HART tag max. 16 characters,
max. 32 characters for PROFIBUS PA 
For actuator
and FOUNDATION Fieldbus version,
Single-action } 1 specify in plain text: Y15: ........
Double-action } 2
Measuring point text Y16
Connection thread HART tag max. 24 characters,
electrical/pneumatic max. 32 characters for PROFIBUS PA 
M20 x 1.5 / G¼ } G and FOUNDATION Fieldbus version,
½-14 NPT / ¼-18 NPT } N specify in plain text: Y16: ........
M20 x 1.5 / ¼-18 NPT M TAG plate made of stainless steel, A20
½-14 NPT / G¼ P 3-line
M25 x 1.5 / G¼ Q Text line 1: Plain text from Y17
Text line 2: Plain text from Y15
Limit monitor Text line 3: Plain text from Y16
Installed
Preset bus address Y25
Without } 0
Specify in plain text: Y25: ........
Alarm module; electronic 1
(6DR4004-.A) } Available ex stock 6
Optional modules
Installed D) Subject to export regulations AL: N, ECCN: EAR99H
Without } 0
Iy module for position feedback 1
signal (4 ... 20 mA) (6DR4004-.J)
Customer-specific design
Without } 0
Brief instructions
German/English } A
French/Spanish/Italian B
Mounted pressure gauge block
Without } 0
Single-action G¼, scaling MPa and 1
bar
Double-action G¼, scaling MPa and 2
bar
Single-action ¼-18 NPT, scaling 3
MPa and psi
Double-action ¼-18 NPT, scaling 4
MPa and psi
Siemens FI 01 · 2009 US Edition 6/19
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Ordering data
Accessories
Selection and Ordering data Order No. Coupler for NAMUR part-turn actuators
Accessories • VDI/VDE 3845, without mounting plate } 6DR4004-8D
• VDI/VDE 3845 SST coupler } TGX:16300-1556
NCS sensor 6 D R 4 0 0 4 - 7N N7 0
for non-contacting detection of position The following mounting plates can be used 
(not for EEx d version), cable length 6 m with the NAMUR part-turn actuator 
(19.68 ft) mounting kit 6DR4004-8D.
Size W x L x H (H = height of shaft butt)
Non explosion-proof 8
• 30 x 80 x 20 mm } TGX:16152-105
Explosion-protected, EEx ia/ib 6 C)
For part-turn actuators, without mounting 1 • 30 x 80 x 30 mm } TGX:16300-147
console C)
• 30 x 130 x 30 mm } TGX:16300-149
For linear actuators up to 14 mm 2 C)
(0.55 inch), without mounting bracket
• 30 x 130 x 50 mm } TGX:16300-151
For linear actuators >14 mm (0.55 inch), 3 C)
to 130 mm (5.12 inch); Mounting kit same 
Mounting kit for other part-turn 
as for SIPART PS2 (separate ordering item)
actuators
The EMC filter module is additionally The following mounting plates can be used 
required for the controller unit. together with the NAMUR part-turn 
(separate order item, see below) actuator mounting kit 6DR4004-8D.
• SPX (DEZURIK) Power Rac, } TGX:16152-328
sizes R1, R1A C)
■ Selection and Ordering data Order No. • Masoneilan Camflex II/35 } TGX:16152-350
C)
Accessories • Fisher 1051/1052/1061, } TGX:16152-364
sizes 30, 40, 60 to 70 C)
Alarm module for 3 alarm outputs and 
1 binary input (functionality: 2 limit • Fisher 1051/1052, size 33 } TGX:16152-348
monitors, C)
1 fault alarm, 1 binary input) Mounting kit for NAMUR linear actuators
• Without explosion protection } 6DR4004-8A • NAMUR linear actuator mounting kit with } 6DR4004-8V
• With explosion protection } 6DR4004-6A short lever arm (2 to 35 mm)
6 CENELEC/ATEX • Lever arm for travels from 35 mm to } 6DR4004-8L• With explosion protection FM/CSA1) 6DR4004-7A 130 mm (1.38 inch to 5.12 inch)
SIA module (slot-type initiator alarm • Reduced mounting kit for linear actuator } 6DR4004-8VK
module, not for EEx d version) (without fixing angle and U-bracket), with 
short lever with up to 35 mm travel 
• Without explosion protection 6DR4004-8G
(1.38 inch) 
• With explosion protection 6DR4004-6G
1) • Reduced mounting kit for linear actuator } 6DR4004-8VLCENELEC/ATEX and FM/CSA
(without fixing angle and U-bracket), with 
Limit value contact module long lever with >35 mm travel (1.38 inch)
(with mechanical ground contacts, not for Mounting kit for other linear actuators
EEx d version) • Retrofitting kit for Moore } TGX:16152-117
• without explosion protection 6DR4004-8K series 72 and 750 valve positioners C)
• with explosion protection 6DR4004-6K • Fisher type 657/667, size 30 to 80 } TGX:16152-110
C)
Iy module for position feedback signal 
(4 to 20 mA) • SAMSON actuator type 3277 (yoke } 6DR4004-8S
dimension (H5) = 101 mm 2) (integrated 
• Without explosion protection } 6DR4004-8J
connection without tube), not for EEx d
• With explosion protection } 6DR4004-6J
CENELEC/ATEX Pipe mounting
• With explosion protection FM/CSA 1) 6DR4004-7J Mounting bracket for pipe mounting of the } TGX:16152-336
SIPART PS2 position (e.g. when using the C)
HART modem for connecting to PC or NCS sensor)
laptop
Additional actuator items can be found at 
• with RS232 interface } 7MF4997-1DA the following Internet address:
D) www.siemens.com/sipartps2
• with USB interface } 7MF4997-1DB Customer-specific mounting kits available 
D) on request. Contact your local sales office.
EMC filter module for connection of exter- C73451-A430-D23 } Available ex stock
nal position sensor (10 kΩ) or NCS sensor 
(not for EEx d version) 1) U.S. certification by FM institute
2) With a yoke dimension H5 = 95 mm, only the SIPART PS2 in a metal 
casing can be used.
C) Subject to export regulations AL: N, ECCN: EAR99
D) Subject to export regulations AL: N, ECCN: EAR99H
6/20 Siemens FI 01 · 2009 US Edition
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Ordering data
Accessories
Note
Manometer block including pressure gauge
• For single-action SIPART PS2 positioner } 6DR4004-1M All the above mentioned manuals are included on CD-ROM or 
with G thread can be downloaded from the Internet under:
(2 manometers, scaled in MPa and bar) www.siemens.com/sipartps2
• For double-action SIPART PS2 positioner } 6DR4004-2M
with G thread Following manuals are available in addition as downloads from 
(3 manometers, scaled in MPa and bar) the Internet or are included on CD-ROM:
• For single-action SIPART PS2 positioner } 6DR4004-1MN • Instruction Manual Compact SIPART PS2 FF, Electropneu-
with NPT thread matic Positioner (6DR56xx) with FOUNDATION Fieldbus 
(2 manometers, scaled in MPa and psi) - German/English: A5E00214570
• For double-action SIPART PS2 positioner } 6DR4004-2MN
with NPT thread • Instruction Manual SIPART PS2 FF, Electropneumatic Posi-
(3 manometers, scaled in MPa and psi) tioner (6DR56xx) with FOUNDATION Fieldbus 
- German: A5E00214568
Connection block, for safety solenoid valve 
- English: A5E00214569
with extended mounting flange to NAMUR
• For mounting to IEC 534-6 6DR4004-1B Scope of delivery:
• For SAMSON actuator (integrated mount- 6DR4004-1C1) • 1 SIPART PS2 positioner as ordered
ing) see above
• 1 CD-ROM with the complete documentation for all versions 
External position detection system C73451-A430-D78 and accessories
(with explosion protection to 
CENELEC/ATEX, EEx ia/ib) for separate • Manual "SIPART PS2 - Configuration At a Glance"
mounting of position sensor and controller 
(for for EEx d version), comprising SIPART ■ More infomation
PS2 plastic casing with integral potentiome-
ter and sliding clutch (without electronics Special versions
and valve block)
The EMC filter module is additionally On request
required for the controller unit. 
(separate ordering item below)
Documentation (see notes below)
Instruction Manual SIPART PS2
• German/English A5E00074600 6
• French/Italian/Spanish A5E00074601
Instruction Manual SIPART PS2 
PROFIBUS PA
• German/English A5E00120716
• French/Italian/Spanish A5E00120717
Instruction Manual NCS Sensor
• German/English/French/Spanish/Italian A5E00097485
SIPART PS2 device documentation 
• CD-ROM with complete documentation for A5E00214567
all device versions
Device manual for SIPART PS2 
(not PA and FF)
• German A5E00074630
• English A5E00074631
Manual for SIPART PS2 PROFIBUS PA
• German A5E00127924
• English A5E00127926
SITRANS I outgoing isolator HART 
(see „SITRANS I supply units and isolation 
amplifiers“) with
• 24 V DC power supply 7NG4130-1AA11
• 230 V AC power supply 7NG4130-1BA11
} Available ex stock
1) Only together with 6DR4004-8S and 6DR4004-1M.
Siemens FI 01 · 2009 US Edition 6/21
© Siemens AG 2008
Electropneumatic positioners
SIPART PS2
Dimensional drawings
■ Dimensional drawings

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8393
:658:9 $$ 
"##" #) 86
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