Siemens SIPART PS2 User manual

Instruction D10447
www.dezurik.com
Electropneumatic Positioner
6DR5axb (a-0,1,2,3/b-0,1,2)
(English)
Operating Instructions Edition 05/2003

Attachment 1 Assembly Information for SIPART PS2 with External Position Detection System
(Remote Position Sensor)

Operating instructions
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44
1 Safety Information
1.1 Meaning of Terms
!DANGER
indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
!WARNING
indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
!CAUTION
used with the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
CAUTION
used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTICE
NOTICE used without the safety alert symbol indicates a potential situation which, if not
avoided, may result in an undesireable result or state.
.NOTE
indicates a reference to a possible advantage when this recommendation is followed.
1.2 Introduction
These Operating Instructions describe the basic steps for assembly, connection, and commissioning.
These Operating Instructions do not replace the Manual for the SIPART PS2 electropneumatic positioner. The
Manual contains more detailed information about assembly, function, and operation.
The Manual can be ordered under Order No.
A5E00074631 (English)
A5E00074630 (German)
from one of our Siemens offices or representatives.
Danger-free use
This device has left the factory in a perfect condition as regards safety. The notes and warnings in these Operating
Instructions must be observed by the user if this state is to be maintained and hazard-free operation of the device
assured.

Operating instructions
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Qualified personnel
A qualified person in the sense of these Operating Instructions is one who is familiar with the installation,
commissioning and operation of the device and who has the appropriate qualifications, e.g.:
-Is trained or authorized to energize, de-energize, ground and tag circuits and equipment in accordance with
established safety practices
-Is trained in the proper care of protective equipment in accordance with established safety practices
-Is trained in first aid
-In the case of devices with explosion protection: is trained or authorized to carry out work on the electric
circuits of potentially explosive equipment.
!WARNING
The device must only be installed and operated by qualified personnel.
The device is designed for connection to functional or safety extra-low voltage.
The electric safety is determined by the power supply units alone.
High positioning forces are generated by pneumatic actuators. To prevent injury, installation and
operation must be carried out under strict observation of the safety regulations.
Reference is specifically made here to the observance of the applicable safety regulations for
potentially explosive equipment.
Correct and safe operation of this device is dependent on proper transport, storage and installation as well as
careful operation and maintenance.
2 Scope of Delivery of Positioner
-Positioner as ordered
-Operating Instructions, German/English (enclosed with device)
-Leaflet ”Operation -- a concise overview”, German and English (in the device)
3 Assembly
3.1 General
!DANGER
The positioner and its option modules would be supplied as separate units and in different versions.
Positioners and option modules are available for operation in zones with and without an explosion
hazard. These versions are marked by a special rating plate.
When combining components, make sure that only positioners and option modules can be com-
bined that are approved for the zone where they will be used. This especially applies to safe opera-
tion of the positioner in zone in which the atmosphere might be subject to an explosion hazard
(Zones 1 and 2). In that case it is imperative to use categories (2 and 3) both of the device itself
and its options.
!CAUTION
It is essential that you observe the following sequence during assembly to avoid injuries or
mechanical damage to the positioner/extension kit:
1. Mechanical fitting of positioner See Chapter 3 (depending on version)
2. Connection of electric power supply See Chapter 5, page 54
3. Connection of pneumatic supply See Chapter 6, page 54
4. Put into operation See Chapter 7, page 57

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In addition you must always ensure that no water can penetrate through an open housing or screw joint. This can
occur when the SIPART PS2 cannot not be assembled and connected immediately on site.
In general the SIPART PS2 may only be operated with dry compressed air. Therefore use the usual water
separator. In extreme cases, an additional drying unit may even be required. This is particularly important when
the SIPART PS2 is operated at low ambient temperatures. In addition, please ensure that the purging air
changeover switch (on the valve manifold, above the pneumatic terminal block) is in the position OUT.
For rotary actuators that are exposed to strong acceleration forces or vibrations, please use a sufficiently stable
console (e.g. sheet thickness > 4mm with backing) and the extension kit “linear actuator” or the integrated
mounting for linear actuators.
3.1.1 Information on the use of positioners in wet environments
This information is important for the assembly and operation of the SIPART PS2 positioner in wet environments
(frequent and heavy rain and/or long--term tropical condensation) for which the protection type IP 65 is no longer
sufficient and, in particular, when there is a danger that the water can freeze.
To prevent water from entering into the device during normal operation (e.g. through the exhaust vents) or to pre-
vent difficulties reading the display, please avoid the following unfavorable assembly positions.
Fig. 1 Favorable and unfavorable assembly positions
If circumstances force you to operate the SIPART PS2 in an unfavorable assembly position, it is possible to
prevent the penetration of water by means of additional measures.
!CAUTION
Never clean the SIPART PS2 with high--pressure water cleaning apparatus because the protection
type IP65 does not have sufficient protection for this.
The necessary additional measures against the penetration of water are dependent on the chosen assembly
position and the following items may be required in addition:
-Screw joint with sealing ring (e.g. FESTO: CK -1 / 4-PK-6)
-Plastic tubing approx. 20 to 30 cm (e.g. FESTO: PUN- 8X1.25 SW)
-Cable ties (number and length dependent on the local conditions)
Procedure
-Arrange the piping in such a way that rain water or condensed water running down the pipes can drip off
before reaching the terminal block of the SIPART PS2.
-Check the seals of the electrical connections for perfect seating.
-Check the seal in the housing cover for damage and soiling. If necessary, clean or replace.
-Mount the SIPART PS2 when possible so that the sintered bronze silencer on the underside of the housing
faces downwards (vertical assembly position). If this is not possible, the silencer should be replaced by a
suitable screw joint with plastic tubing.

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Assembly of the screw joint with plastic tubing
-Unscrew and remove the sintered bronze silencer from the exhaust vent on the underside of the housing.
-Screw the above--mentioned screw joint into the exhaust vent.
-Mount the above--mentioned plastic tubing onto the screw joint and check for a tight fit.
-Fasten the plastic tubing with a cable tie to the fitting so that the opening is facing downwards.
-Ensure that the tubing is not kinked and that the exhaust air can flow out unhindered.
3.1.2 Information for the use of positioners that are exposed to strong acceleration forces
or vibration
Fittings under heavy mechanical stresses such as from breakaway flaps, violently shaking or vibrating valves,
or steam jets can be exposed to strong acceleration forces far above those specified. This can result, in extreme
cases, to a shifting of the friction clutch.
For such cases the position controller equipped with a fixing device for the slip clutch with which adjustment due
to the above mentioned influences can be prevented.
The setting possibility is accessible below the black knurled wheel and is recognizable from slots on the yellow
wheel. The zero point adjustment and the setting possibility of the slip clutch are identified by symbols on an
additional plate.
Procedure
After you have mounted the position controller and commissioned it completely, you can set the slip clutch torque
as follows:
-Plug a conventional 4 mm wide screwdriver into a slot in the yellow wheel.
-Then turn the yellow wheel to the left with the screwdriver until it snaps in audibly. This increases the torque
of the slip clutch.
-A fixed slip clutch is recognizable from an approx. 1 mm wide gap between the yellow and black wheel.
-If you have to make a zero point setting, e.g. after changing the drive, please reduce the torque first by turning
the yellow wheel to the right stop. After the zero point setting, you can fix the slip clutch as described above.
D--76181 Karlsruhe
IP65
NEMA
Type 4x
SIPART PS2 i/p Positioner
Iw = 4...20mA
Ta = --30 . .. +8 0
p = 1,4 ... 7bar
OC
Made in France
module
module
module
Iy
SIA
Alarm
6DR5010--0NG00--0AA0
F--Nr. N1--P212 --12 3 4567
Fig. 2 Fixing device for the slip clutch

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External position sensor
There are potential cases for which the above--mentioned measures are not sufficient. This could be, for example,
in the presence of strong and lasting vibrations, increased or too low ambient temperatures, and in the presence
of nuclear radiation.
In such cases, separate mounting of position sensor and control unit is helpful. For this, a universal component
is available that is suitable for both linear and rotary actuators.
You will need the following:
-The position sensor unit (order number C73451-A430-D78). This consists of a SIPART PS2 housing with
an integrated friction clutch, in-built potentiometer and various blind plugs and seals.
-The control unit, a SIPART PS2 positioner in any version.
-The EMC filter plate which is available in a set together with cable clamps and M-20 cable glands and has
the order number C73451--A430--D23. The EMC filter plate must be mounted in the SIPART PS2 positioner.
The Installation Instructions supplied with the EMC filter plate explains the assembly of the components.
-A three-pin cable to connect the components.
This upgrade set must also always be used for the control unit when any potentiometer (resistance value
10 kOhm) is mounted on the actuator instead of the position sensor unit C73451-A430-D78.
3.2 Extension Kit ”Linear Actuator” 6DR4004--8V and 6DR4004--8L
The following are included in the delivery of the extension kit ”Linear actuator IEC 534 (3 mm to 35 mm)” (see
Figure 3 for item Nos.):
Item No. Quantity Designation Remarks
1 1 NAMUR mounting brak-
ket IEC 534 Standardized connection for mounting console with ledge, column or plane surface
2 1 Pick-up bracket Guides the roll with driver pin and rotates the lever arm
3 2 Clamping assembly Mounting of pick-up bracket on actuator spindle
4 1 Driver pin Assembly with roll (5) on lever (6)
5 1 Roll Assembly with driver pin (4) on lever (6)
6 1 NAMUR lever Forstrokerange3mmto35mm
For stroke ranges > 35 mm to 130 mm (special delivery), lever
6DR4004--8L is also required
7 2 U-bolt Only for actuators with columns
8 4 Hexagon head screw M8 x 20 DIN 933--A2
9 2 Hexagon head screw M8 x 16 DIN 933--A2
10 6Spring washer A8 -- DIN 127--A2
11 6U-washer B 5.4 -- DIN 125--A2
12 2U-washer B 6.4 -- DIN 125--A2
13 1Spring VD--115E 0.70x11.3x32.7x3.5
14 1Spring washer A6 -- DIN 137A--A2
15 1Lock washer 3.2 -- DIN 6799--A2
16 3Spring washer A6 -- DIN 127--A2
17 3Hexagon head screw M6 x 25 DIN 933--A2
18 1Hexagon nut M6 -- DIN 934--A4
19 1Square nut M6 -- DIN 557--A4
21 4Hexagon nut M8 -- DIN 934--A4
22 1Guide washer 6.2x9.9x15x3.5

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3.2.1 Assembly Sequence
(see Figure 3, page 50)
1. Mount clamping assembly (3) with socket cap screws (17) and lock washers (16) on the actuator spindle.
2. Insert the pick-up bracket (2) into the recesses of the clamping assembly. Set the required length and
screw only so tight that the pick-up bracket can still be shifted.
3. The center of the pin (4) is set to the value of the stroke range specified on the actuator or set to the
next large scale value. The same value can be set later for 3.YWAY during start-up, to display the travel
in mm after initialization.
4. Push the lever onto the positioner shaft as far as possible, and secure with the socket cap screw (17).
5. Fit the mounting bracket (1) with two hexagonal head screws (9), lock washer (10) and flat washer (11)
on the rear of the positioner.
6. Selection of the row of holes depends on the width of the actuator yoke. The roll (5) should engage in the
pick--up bracket (2) as close to the spindle as possible, but must not touch the clamping assembly.
7. Hold the positioner with the mounting bracket on the actuator such that the roll (5) is guided within the
pick-up bracket (2).
8. Tighten the pick-up bracket.
9. Position the mounting parts according to the type of actuator.
-- Actuator with ledge: hexagonal head screw (8), flat washer (11) and lock washer (10).
-- Actuator with plane surface: four hexagonal head screws (8) with flat washer (11) and lock washer (10).
-- Actuator with columns: two U-bolts (7), four hexagonal nuts (21) with flat washer (11) and lock
washer (10).
10. Secure positioner onto the yoke using the previously positioned mounting parts.
.NOTE
Adjust the height of the positioner such that the horizontal lever position is reached as close as possible
to the center of the stroke. You can use the lever scale of the actuator for orientation. It must always
be guaranteed that the horizontal lever position is passed through within the stroke range.

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2) 45
13
22
612 14
19
12
16
17
7
21
11 10
11
As required
Mounting on yoke
with columns
Mounting on yoke
with plane surface
8
10
Mounting on yoke
with ledge
18
4)
8
1
10
11
3) 910
11
9
10 11
1
1)
2
17
16
3
15
Fig. 3 Assembly sequence (linear actuator)

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3.3 Extension Kit ”Rotary Actuator” 6DR4004--8D
The following are included in the delivery of the extension kit ”Rotary actuator” (see Figure 4, page 52 for item
Nos.):
Item No. Quantity Designation Remarks
2 1 Coupling wheel Mounting on position feedback shaft of SIPART PS2
3 1 Driver Mounting on end of actuator shaft
4 1 Multiple scale Indication of actuator position, comprising 4.1 and 4.2
4.1 8Scale Different divisions
4.2 1Pointer Reference point for scale (adhesive label)
14 4Hexagon head screw DIN 933 -- M6 x 12
15 4Lock washer S6
16 1Fillister head screw DIN84--M6x12
17 1Washer DIN 125 -- 6.4
18 1Hexagon socket screw Premounted with coupling wheel
19 1Allen key For item 18
3.3.1 Assembly Sequence
(see Figure 4, page 52)
1. Place VDI/VDE 3845 mounting console ((9), actuator-specific, scope of supply of actuator manufacturer)
onto rear of positioner and secure using hexagon head screws (14) and lock washers (15).
2. Adhere pointer (4.2) onto mounting console in the center of the centering hole.
3. Push coupling wheel (2) onto positioner axis as far as possible, pull back by about 1 mm, and tighten hexagon
socket screw (18) using the supplied Allen key.
4. Place the driver (3) onto the end of the actuator shaft and secure using Fillister head screw (16) and washer
(17).
5. Carefully place positioner with mounting console onto the actuator such that the pin of the coupling wheel
engages in the driver.
6. Align the positioner/mounting console assembly in the center of the actuator and screw tight.
(Screws not included in delivery; they are part of the actuator mounting console!)
7. Following startup as described in Section 7: Drive actuator to end position and adhere scale (4.1) onto the
coupling wheel (2) according to the direction of rotation or the turning range. The scale is self-adhesive!

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0% 20 40 60 80 100%
1) 2)
3)
4) 5)
18
2
9
4.2
3
16
17
2
4.1
2
3
9
14
15
Fig. 4 Assembly sequence (rotary actuator)

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4 Installation of Options
(see Figure 9, page 97)
-Unscrew housing cover.
-Unscrew module cover (1).
-Jymodule: Insert the Jymodule (3) into the lower PCB slot guide of the container, make the electrical
connection with the accompanying ribbon cable (6).
-Alarm module: Insert the alarm module (4) into the upper PCB slot guide of the container, make the electrical
connection with the accompanying ribbon cable (5).
-SIA module (slot-type initiator alarm module)
1. Remove all electrical connections of the basic electronics (2).
2. Loosen the two fixing screws (2.1) of the basic electronics.
3. Unclip the basic electronics by carefully bending out from the four attachment points.
4. Guide the SIA module (7) from above until the upper PCB slot guide of the container is reached.
5. Push the SIA module approx. 3 mm to the right into the PCB slot guide of the container.
6. Screw in the special screw (7.1) through the SIA module into the shaft of the positioner (Torque: 2 Nm)
!CAUTION
The pins pushed into the control-gate valve bearing must be aligned shortly before contact with the
special screw. When screwing-in further, the control-gate valve bearing and the special screw must
be turned simultaneously so that the pins insert into the special screw. The SIA module may be da-
maged if you will not observe this.
7. Place the insulation cover (10) over the SIA module on one side under the seating area of the basic
electronics on the container wall. The openings on the insulation cover must fit onto the corresponding
studs on the container wall. By carefully bending the container walls, fit the insulation cover over the
SIA module.
8. Clip the basic electronics into the four attachment points and screw down the basic electronics with the
two fixing screws (2.1).
9. Make all the electrical connections between the basic electronics and options with the accompanying
ribbon cables and between the basic electronics and the potentiometer with the potentiometer cable.
10. Attach the supplied module cover instead of the standard cover with the two screws.
11. Select the plates from the accompanying set of plates to correspond with those that were already
present on the standard version of the module cover. Stick the selected plates onto the mountedmodule
cover in accordance with the standard version.
12. Make all the electrical connections.
Setting the two limits:
13. Move the actuator to the first desired mechanical position.
14. Adjust the upper adjustment screw (for output terminals 41, 42) by hand until the output level changes.
15. Move the actuator to the second desired mechanical position.
16. Adjust the lower adjustment screw (for output terminals 51, 52) by hand until the output level changes.
.NOTE
By rotating the adjustment screw past the level--changed value to the next level-changed value, you
can set a High-Low or a Low-High switch.

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5 Electric Connection
(see Figure 10 to 21, page 98 to 103)
Electric connection: Screw terminals 2.5 mm2
Cable inlet: M20 x 1.5
Signal range
Setpoint w: 4 to 20 mA With 2-wire connection
0/4 to 20 mA With 3-wire or 4-wire connection
Power supply UH:18to30V
The plastic housing is metallize coated inside against high-frequency radiation. This shield is connected with the
female thread jacks on the back side (see figure 5).
Please note that one of them must at least be connected to ground.
Shield
Fig. 5 Ground plate
6 Pneumatic Connection
!CAUTION
If the electric supply is connected, the pneumatic supply must only be connected following
assembly if the positioner is switched to the input level ”P manual mode” (for the as supplied condi-
tions, see leaflet ”Operation -- a concise overview”).
NOTICE
Ensure that the air quality is suitable! Grease-free industrial air, particulates < 30 μm, pressure dew
point 20 K below lowest ambient temperature.
The pneumatic connections are located on the right-hand side of the positioner (Figure 6).

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Outlet air E with silencer on the underside of the instrument
Positioning pressure Y1 for single and double--acting actuators
Positioning pressure Y2 for double--acting actuators
Inlet air PZ
Feedback shaft
Fig. 6 Pneumatic connection
Two pneumatic connections for the integrated installation of single--acting linear actuators are located on the rear
of the positioner:
-Positioning pressure Y1
-Air outlet E
These connections are locked with screws when supplied.
Outlet air E can be used to ensure a flow of dry instrument air through the pick--off area and the spring chamber
to prevent corrosion.
Procedure:
-Connect manometer for inlet air pressure and positioning pressure in necessary.
-Connection via female thread G 1/4 DIN 45141:
PZ Inlet air 1.4 to 7 bar
Y1 Positioning pressure 1 for single-action and double-action actuators
Y2 Positioning pressure 2 for double-action actuators
E Exhaust output (remove silencer if necessary)
-Safety setting on failure of electric supply:
single-action: Y1 Vented
double-action: Y1 Max. positioning pressure (inlet air pressure)
Y2 Vented
-Connect positioning pressure Y1 or Y2 (only with double-action actuators) according to desired safety
setting.
-Connect inlet air to PZ.
.NOTE
Spring return actuators need sufficient high supply pressure so that thecomplete stroke can betravelled
up to the end position of the actuator.

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6.1 Purging air switchover
The purging air changeover switch above the pneumatic terminal block (Figure 7) on the valve manifold can be
accessed when the housing is open. When the switch is in position IN the interior of the housing is purged with
very small quantities of clean and dry instrument air. In position OUT the purging air is led directly out of the
instrument.
Fig. 7 Purging air changeover switch above the pneumatic terminal block, view of the device on the
pneumatic connection side with the cover open
6.2 Restrictors
To increase the positioning times for fast actuators when necessary, the air flow can be reduced with the restrictors
Y1 and Y2 (only for double-action valves) (Figure 8). Turning the restrictors in the clockwise direction reduces the
air flow until it is shut off. To set the restrictors we recommend closing them first and then opening them again
slowly (see Initialization RUN3). In case of double-action valves please note that both restrictors are set alike.
Y1 Y2
Hexagon socket 2.5 mm
Fig. 8 Restrictors

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7 Commissioning (see Leaflet ”Operation -- a concise overview”)
Because of the numerous applications it can have, the positioner must be adapted to the actuator after assembly
(initialized). This initialization can be undertaken in three different ways:
-Automatic initialization
The initialization is automatic. The positioner determines sequentially the direction of action, the travel or the
rotational angle, the travel times of the actuator and adapts the control parameters to the dynamic behavior
of the actuator.
-Manual initialization
The travel or the rotational angle of the actuator can be set manually; the remaining parameters are automati-
cally determined as for automatic initialization. This function is required for soft end stops.
-Copying initialization data (replacing the positioner)
For devices with HART function, the initialization data of a positioner can be read out and transmitted to
another positioner. Therefore it is possible to exchange a defective device without interrupting the running
process by an initialization.
Before initialization, you only have to set a few parameters for the positioner. The remaining parameters are set
with default values that you do not normally have to alter. If you observe the following points, you will not have
any problem with commissioning.
.NOTE
You can return to the previous parameter by pressing the and keys simultaneously.
7.1 Preparation for linear actuators
1. Mount the positioner with the appropriate mounting kit (see Chapter 3.2, page 48).
NOTICE
The position of the leverage ratio switch in the positioner is especially important and on page 95 in
the Leaflet ”Operation -- a concise overview” point 7 of figure “View of device”:
Stroke Lever Position of the leverage ratio switch
5to20mm short 33°(i.e. below)
25 to 35 mm short 90°(i.e. above)
40 to 130 mm long 90°(i.e. above)
2. Push the driver pin (4, Figure 3, (page 50) 2) on the lever (6, Figure 3, 2) to the scale position corresponding
to the nominal stroke or the next highest scale position and screw the driver pin tight with the nut (18, Figure
3, 2).
3. Connect the actuator and positioner with the pneumatic cables and supply pneumatic power to the positioner
(see Chapter 6, page 54).
4. Connect a suitable current or voltage source (see Figure 10, page 98 to Figure 15, page 100).
5. The positioner is now in ”P manual” mode. On the upper line of the display, the current potentiometer voltage
(P) is displayed as a percentage, e.g. ”P37.5”, and on the lower line ”NOINI” is blinking:
Display:
6. Check that the mechanism is able to move freely over the entire setting range by moving the actuator into
each final position with the and keys.
.NOTE
You can move the actuator quickly by pressing the other direction key while you hold the first direc-
tion key down.

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7. Now move the actuator into the horizontal position of the lever. The display should show a value between
P48.0 and P52.0. If that is not the case, adjust the friction clutch (8, Fig. 3) until ”P50.0” is shown when the
lever is horizontal. The more precisely you achieve that value, the more accurately the positioner can deter-
mine the displacement.
7.1.1 Automatic initialization of linear actuators
If you can move the actuator correctly, leave it in a central position, and start automatic initialization:
1. Press the mode key for more than 5 s. This takes you into Configuration mode.
Display:
2. Switch to the second parameter by pressing the mode key briefly.
Display: or
.NOTE
This value must match the setting of the leverage ratio switch (7, Leaflet ”Operation -- a concise
overview”) (33°or 90°)
3. Switch to the following display with the mode key :
Display:
You only have to set this parameter if you want to have the calculated total stroke displayed in mm at the
end of the initialization phase. To do that, select the same value in the display as the value to which you set
the driver pin on the scale of the lever.
4. Switch to the following display with the mode key :
Display:
5. Start initialization by pressing the key for more than 5 s.
Display:
During the initialization process ”RUN1”to”RUN5” appear one after the other in the lower display.
.NOTE
The initialization process can take up to 15 min depending on the actuator.

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Initialization is complete when the following display appears:
After you have pressed the mode key briefly, the following display appears:
To exit Configuration mode press the mode key for more than 5 s. After about 5 s, the software version is
displayed. After you have released the mode key, the unit is in manual mode.
If you want to set further parameters, use the leaflet ”Operation -- a concise overview” or the Manual.
You can start reinitialization from manual or automatic mode at any time.
7.1.2 Manual initialization of linear actuators
With this function, the positioner can be initialized without driving the actuator hard into the end stop. The start
and end positions of the travel are set manually. The remaining steps for initialization (optimization of the control
parameters) are automatically determined as for automatic initialization.
Sequence of steps for manual initialization for linear actuators
1. Carry out the preparations for linear actuators according to chapter 7.1, page 57. Ensure by driving manually
over the entire travel that the displayed potentiometer setting lies within the permissible range of P5.0 and
P95.0.
2. Press the mode key for longer than 5 s. This way you will enter Configuration mode.
Display:
3. Switch to the second parameter by pressing the mode key briefly.
Display: or the display
.NOTE
This value must agree with the setting of the transmission ratio selector (33_or 90_).
4. Move to the following display with the mode key :
Display:
This parameter only has to be set if you wish to have the determined total stroke displayed in mm at the end
of the initialization phase. To do this, select the same value in the display that you have set with the driver
pin on the lever scale, or the next highest value for intermediate settings.
5. Move to the following display by pressing the mode key twice:
Display:

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6. Start initialization by pressing the increment key for more than 5 s.
Display:
7. After 5 s, the display changes to:
Display:
(The display of the potentiometer setting is shown here and in the following as an example only).
Drive the actuator with the increment (+) and decrement (--) keys to the position that you wish to define as
the first of the two end positions. Then press the mode key . In this way the current position is taken over
as end position 1 and will switch to the next step.
.NOTE
If the message RANGE appears in the lower line, the selected end position is outside the
permissible measuring range. There are several options to correct this error:
SAdjust the friction clutch until OK appears and then press the mode key once more, or
SDrive to another end position with the increment and decrement keys, or
SInterrupt the initialization by pressing the mode key. Then you have to switch to P--Manual mode
and correct the travel and the position measurement according to step 1.
8. When step 7 has been completed successfully, the following display appears:
Display:
Now drive the actuator with the increment (+) and decrement (--) keys to the position that you wish to define
as the second end position. Then press the mode key . The current position will now be taken over as
the end position 2.
.NOTE
If the message RANGE appears in the lower line, the selected end position is outside the permitted
measuring range or the measuring span is too small. There several options to correct this error:
SDrive to another end position with the increment and decrement keys, or
SInterrupt the initialization by pressing the mode key. Then you have to switch to P--Manual mode
and correct the travel and the position measurement according to step 1.
.NOTE
If the message Set Middle appears, the lever arm must be moved to the horizontal position with the
increment and decrement keys and then the mode key pressed. This sets the reference point of the
sine correction for linear actuators.
9. The rest of the initialization occurs automatically. RUN1 through to RUN5 appear in the lower line of the dis-
play sequentially. When the initialization has been completed successfully, the following display appears:
Display:

Operating instructions
SIPART PS2
A5E00074600-05 61
In the first line, the determined stroke in mm will appear in additional if the set lever length has been entered
with the parameter 3.YWAY.
After briefly pressing the mode key , 5.INITM appears once more in the lower line. This means that you
are now in Configuration mode once more.
To leave Configuration mode, press the mode key for more than 5 s. After approx. 5 seconds, the software
version will be displayed. After releasing the mode key, the device will be in Manual mode.
7.2 Preparation for rotary actuators
.NOTE
Especially important: Switch the leverage ratio switch (7, leaflet ”Operation -- a concise overview”)
in the positioner into position 90°(usual adjustment angle for rotary actuators).
1. Mount the positioner with the appropriate mounting kit (see Chapter 3.3, page 51).
2. Connect the actuator and positioner with the pneumatic cables and supply pneumatic power to the positioner
(see Chapter 6, page 54).
3. Connect a suitable current or voltage source (see Figure 10, page 98 to Figure 15, page 100).
4. The positioner is now in ”P manual” mode. On the upper line of the display, the current potentiometer voltage
(P) is displayed as a percentage, e.g. ”P37.5”, and on the lower line
”NOINI” is blinking:
5. Check that the mechanism is able to move freely over the entire setting range by moving the actuator into
each final position with the and keys.
.NOTE
You can move the actuator quickly by pressing the other direction key while you hold the first direc-
tion key down.