PS Automation PSQ-AMS Series User manual

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PS-AMS Series PSQ
Version 2023/0
9
/
28
Art.No.:
8035620
©
2023 PS Automation GmbH
Subject to changes
Operating
Instructions

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Contents
1. Symbols and safety .............................................................................................................................................. 4
2. Usage as per specification ................................................................................................................................... 5
3. Storage ................................................................................................................................................................ 5
4. Operating Conditions and Installation Position .................................................................................................. 5
4.1 Operating Conditions ...................................................................................................................................... 5
4.2 Installation Position ........................................................................................................................................ 6
5. Operating Principle .............................................................................................................................................. 7
6. Manual Operation ............................................................................................................................................... 7
7. Mechanical Mounting ......................................................................................................................................... 8
7.1 Safety Note ..................................................................................................................................................... 8
7.2 Valve Mounting PSQ103-1503AMS ................................................................................................................ 8
7.3 Valve Mounting PSQ2003/2803AMS .............................................................................................................. 9
8. Electrical Connection ........................................................................................................................................... 9
8.1 Safety Note ..................................................................................................................................................... 9
8.2 Wiring Arrangements ................................................................................................................................... 10
8.3 Electric Wiring ............................................................................................................................................... 10
8.3.1 Mains Supply ........................................................................................................................................... 10
8.3.2 Input Terminals ....................................................................................................................................... 14
8.3.2.1 Set-Value .................................................................................................................................................... 14
8.3.2.2 Sensor Feedback for Process Controller (optional) .................................................................................... 14
8.3.2.3 Binary Input ................................................................................................................................................ 14
8.3.2.4 Fail-safe port for Binary Input (optional) ................................................................................................... 14
8.3.3 Output Terminals .................................................................................................................................... 14
8.3.3.1 Active Position Feedback ........................................................................................................................... 14
8.3.3.2 Additional Position Switches (optional) ..................................................................................................... 14
8.3.3.3 Voltage Feed to Process Sensor (optional) ................................................................................................ 14
8.3.3.4 Fault Indication Relay ................................................................................................................................. 15
8.3.4 Fieldbus interface (optional) ................................................................................................................... 15
8.4 Accessories ................................................................................................................................................... 15
8.4.1 Space Heater (optional) .......................................................................................................................... 15
8.4.2 Adjusting Additional Position Switches (optional) .................................................................................. 16
9. Status Display / Operating Element / Communication ..................................................................................... 16
9.1 Status LEDs .................................................................................................................................................... 16
9.2 Commissioning button .................................................................................................................................. 16
9.3 Communication Port ..................................................................................................................................... 17
10. Operation ........................................................................................................................................................ 17
10.1 Cut-off by Force / Torque ........................................................................................................................... 17
10.2 Cut-Off by Position automatically ............................................................................................................... 17
10.3 Cut-Off by Position...................................................................................................................................... 17
11. Commissioning ................................................................................................................................................ 18
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11.1 Automatic Commissioning .......................................................................................................................... 18
11.1.1 Adjusting the Mechanical Stops PSQ103-1503AMS ............................................................................. 19
11.1.2 Setting the Mechanical Stops PSQ2003-2803AMS ............................................................................... 19
11.1.3 Commissioning Procedure .................................................................................................................... 20
11.1.4 Unscrewing the Mechanical Stop ......................................................................................................... 21
11.1.5 Additional information .......................................................................................................................... 21
11.2 Manual Commissioning .............................................................................................................................. 22
12. Status messages .............................................................................................................................................. 22
12.1 Fault indicator relay .................................................................................................................................... 22
12.2 Tracing faults .............................................................................................................................................. 22

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13. Maintenance and Repair ................................................................................................................................. 22
14. Safety on Transportation................................................................................................................................. 23
15. Decommissioning and disposal ....................................................................................................................... 23
16. Accessories ...................................................................................................................................................... 23
17. Tracing faults ................................................................................................................................................... 24
18. CE Declaration of Conformity .......................................................................................................................... 26
19. CA Declaration of Conformity ......................................................................................................................... 27

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1. Symbols and safety
General dangers of non-compliance with safety regulations
PS-AMS PSQ actuators are built at state-of the art technology and are safe to operate. Despite of this, the actuators
may be hazardous if operated by personnel that has not been sufficiently trained or at least instructed, and if the
actuators are handled improperly, or not used as per specification.
This may
 cause danger to life and limb of the user or a third party,
 damage the actuator and other property belonging to the owner,
 reduce safety and function of the actuator.
To prevent such problems, please ensure that these operating instructions and the safety regulations in particular
have been read and understood by all personnel involved in the installation, commissioning, operation, maintenance
and repair of the actuators.
Basic safety notes
 The actuators may only be operated by skilled and authorized operating personnel.
 Make sure to follow all security advices mentioned in this manual, any national rules for accident prevention, as
well as the owner´s instructions for work, operation and safety.
 The isolating procedures specified in these Operating Instructions must be followed for all work pertaining to the
installation, commissioning, operation, change of operating conditions and modes, maintenance, inspection,
repair and installation of accessories
 Before opening the actuator cover, ensure that mains supply is isolated and prevented from unintended re-
connection.
 Areas that can be under voltage have to be isolated before working on them.
 Ensure that the actuators are always operated in faultless condition. Any damage or faults, and changes in the
operational characteristics that may affect safety, must be reported at once.
Danger signs
The following danger signs are used in this operating manual:
Caution! There is a general risk of damage related to health and/or properties.
Danger! Electrical voltages are present that may lead to death. Avoid personal or material
damages by observing applicable regulations and safety standards!
Danger! This sign warns of hazards posing a risk to health. Ignoring these instructions can lead
to injuries.
Attention! Observe precautions for handling. Electrostatic sensitive devices.

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Other notes
 The motor surface temperature may rise when maintaining, inspecting and repairing the actuator immediately
after the operation. There is a danger of burning the skin!
 Always consult the relevant operating instructions when mounting PS accessories or operating the actuator with
PS accessories.
 Connections for signal in- and output are double isolated from circuits that can be under dangerous voltage.
2. Usage as per specification
 PS-AMS PSQ quarter turn actuators are exclusively designed to be used as electric valve actuators. They are
meant to be mounted on valves in order to run their motors.
 Any other use is considered to be non-compliant and the manufacturer cannot be held liable for any damage
resulting from it.
 The actuators can only be used within the limits laid out in the data sheets, catalogues and other documents.
Otherwise, the manufacturer cannot be held liable for any resulting damage.
 Usage as per specification includes the observance of the operating, service and maintenance conditions laid
down by the manufacturer.
 Not to be regarded as usage as per specification are mounting and adjusting the actuator as well as servicing.
Special precautions have to be taken while doing this!
 The actuators may only be used, serviced and repaired by personnel that is familiar with them and informed
about potential hazards. The specific regulations for the prevention of accidents have to be observed.
 Damages caused by unauthorized modifications carried out on the actuators are excluded from the
manufacturer's liability.
 Supply voltage may only be switched on after the proper closure of the main cover or terminal box.
3. Storage
For appropriate storage, the following instructions have to be met:
 Only store the actuators in ventilated, dry rooms.
 Store the actuators on shelves, wooden boards, etc., to protect them from floor moisture.
 Cover the actuators with plastic foil to protect them from dust and dirt.
 Protect the actuators against mechanical damage.
4. Operating Conditions and Installation Position
4.1 Operating Conditions
 The actuators PS-AMS PSQ can be operated at ambient temperatures from -20°C to +60°C.
 The operating modes correspond to DIN EN 60034-1: S2 for short cycle and S4 for modulating operation (for
actuator specific data see the actuator specific data sheets).
 The lifetime of the actuator meets the requirements of class C according to DIN EN ISO 22153.
 For protection against moisture and dust, the enclosure rating is IP67 or IP68 according to EN 60529.
 When installing the actuators, leave enough space to permit cover removal (Figure 1).
 The actuator may be mounted in any desired position except “cover facing downwards”.

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PSQ103-1503AMS
PSQ2003/2803AMS
Figure 1: Outside dimensions
4.2 Installation Position
Outdoor usage:
When using the actuators in environments with high
temperature fluctuations or high humidity, we recommend
using a heating resistor as well as a higher enclosure rating
(optional accessories).
Figure 2: Installation position
Actuator Type A B C D E F G H I
PSQ103AMS 268 161 128 104,5 236 158 244 114 125
PSQ203AMS 355 228 194 122,5 307 185 292 112 200
PSQ503/703AMS 406 240 198 171,5 358 234 350 141 200
PSQ1003AMS 406/409 240 198 171,5 287 234 375 141 250
PSQ1503AMS 406/409 240 198 173 275 234 375 141 250
PQ2003/2803AMS 608 240 198 374,5 514 390 350 140 200

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5. Operating Principle
The quarter-turn actuators PS-AMS PSQ are designed for the use as electric valve actuators. Mounting to the valve is
done by a mounting flange as per ISO5211, plus an exchangeable drive bushing with an inside contour as per the
valve shaft.
Mechanical power is created by a 24 volts DC-motor which is controlled from the electronics via pulse width
modulation (PWM). Absolute encoded feedback comes from a precision potentiometer. The motor torque is
transmitted through a reducing spur gear to a planetary gear set. Output is a centre gear with a multi-toothed inner
profile to accept the drive bushing.
During power failure and adjustment work the actuators can be emergency-operated via the handwheel (see chapter
6. Manual Operation) except when using the fail-safe unit PSCP.
6. Manual Operation
A handwheel is provided to operate the actuator in case of power failure or for valve adjustment.
PS-AMS PSQ actuators are supplied with handwheel loosely added. Before operation it has to be fitted as shown
below.
Figure 3: Mounting the handwheel
The handwheel on a worm shaft drives the entire planetary gear set. In motor operation, it is standing still, but is
available in any position without need for clutching. Turning the handwheel clockwise turns the output clockwise as
well, viewed from the top.
Figure 4: Manual operation PSQ103-1503AMS Figure 5: Manual operation PSQ2003/2803AMS

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7. Mechanical Mounting
7.1 Safety Note
Beware of mechanical hazards due to electrically powered actuator
components!
With the actuator powered electrically, operating the unit holds the danger of
crushing your fingers, damaging the actuator and/or the valve.
During adjustment work, the actuator may be operated by means of the
handwheel only.
Do not operate electrically!
7.2 Valve Mounting PSQ103-1503AMS
The PS-AMS PSQ actuators are provided with flanges according to ISO 5211 for valve mounting. Connection to the
valve shaft is made with an exchangeable drive bush.
Starting position: drive bush is already pre-installed in the actuator
 Ensure the correct position of the actuator by position indicator
and adapt it to the position of the valve by handwheel. Ideally,
the end position of the valve should be open or closed. Drive the
actuator in the same end position by handwheel.
 If the positions of valve and actuator are adapted, put the
actuator with the drive bush on the valve.
 Adapt the accurate mounting position by handwheel to insert
the screws in the mounting flange. Tighten the screws in a
diagonal sequence.
Starting position: drive bush is delivered separately and not yet
pre-installed in the actuator
 Put the drive bush on the valve shaft first.
 Follow the instructions of the pre-installed drive bush above.
However, please note: The drive bush is not installed in the
actuator for mounting on the valve shaft. Instead, the drive
bush is already mounted on the valve shaft as a unit. Put the
actuator on this unit.
Caution!
The handwheel should not be used in ongoing motor operation, as the actuator tries to
compensate the deviation in position, depending on the operating mode selected.
If a fail-safe unit type PSCP (option) is installed, the handwheel can’t be used, as the
actuator drives back to the failsafe position.
F
igure
6
:
Mechanical interface

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7.3 Valve Mounting PSQ2003/2803AMS
The PS-AMS PSQ actuators are provided with flange F16 according to ISO 5211 for valve mounting. Connection to the
valve shaft is made with a 55 mm double square. Delivery of the actuator includes two components: the gearbox and
the actuator itself (already pre-mounted).
 Use the position indicator at the gearbox to ensure the correct position of the actuator. Adapt it to the valve
position by handwheel. In the best case, the position of the valve should be open or closed during mounting.
Drive the actuator in the same end position manually.
 If the gearbox and actuator are in the same position, mount the actuator on the valve (if necessary, mount the
adaptation of the valve shaft on the 55 mm double square first).
 Adapt the accurate mounting position by handwheel to insert the screws in the mounting flange. Tighten the
screws in a diagonal sequence.
8. Electrical Connection
8.1 Safety Note
When performing electric work on this unit, the local accident prevention
regulations must be followed.
Observe EN 60204-1 (VDE 0113 part 1) to ensure human safety, integrity of the
assets as well as the proper functioning of the unit.
Electric supply lines must be dimensioned for the peak current of the
unit and
comply with IEC 227 and IEC 245.
Yellow-and-green coded cords may only be used for connection to protective
earth.
When leading wires through the cable glands on the actuator, their minimum
bending radius has to be considered.
The electric actuators PS-AMS PSQ are not fitted with an internal electric
isolator, hence a switching device or circuit breaker must be integrated in the
facility. It should be installed close to the actuator and should be easy to access
for the user. It is important to mark the circuit breaker as this actuator‘s isolator.
Electric installations and over-current protection devices must be conformed to
the standard IEC 364-4-41, protective class I resp. DIN IEC 60364-4-44 according
to the overvoltage category of the actuator.
Please protect all of the power supply and control cables in front of the
terminals mechanically by using suitable measures against unintentional
loosening. Never install the power supply and the control cables together in one
line but instead please always use two different lines.
PE earth connection has to be connected to gear casing at !
Ensure that all connecting cables are stripped to the correct length so
that they are protected against electric shock.

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8.2 Wiring Arrangements
Depending on order specification, the PS-AMS PSQ are supplied with two different wiring arrangements.
Wiring to the Main Board: Electric wiring is made to terminals on the main board inside the actuator. Accordingly,
the cover has to be opened for wiring.
Wiring to Terminal Box: Electric wiring is made inside a separate box mounted to the actuator. Take off the cover
from the box and fit the wires to the screwed terminals at the back of the plug modules.
8.3 Electric Wiring
8.3.1 Mains Supply
Isolate the power supply.
Safeguard the line against unauthorized and unintended restarting.
Attention! Observe precautions for handling.
Ground the actuator.
Before opening the cover, touch grounded housing parts.

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Wiring to
the main board:
Figure 7: Open the cover
Open the cover. Insert the cable into the actuator
via the cable glands.
figure 8: Main board
The main board provides terminals to
accommodate rigid and flexible cables of wire
widths of 0.14 mm² to 2.5 mm² as well as a PE
screw on the housing.
Caution: Please observe the supply voltage and the
maximum power consumption of the actuator as
indicated on the actuator‘s name plate!
Connect wires as per the enclosed wiring diagram.
Wiring to the terminal box:
Figure 9: Open the terminal box
Open the cover of the terminal box. Insert the
cable through the cable glands to the inside of the
cover.
Figure 10: Plug modules
Unscrew the 4 holding screws of either plug
module from the holding frame inside the cover.
Wiring is made to the back side of the modules.
Each plug module provides 16 numbered terminals
to accommodate rigid and flexible cables of wire
widths of 0.14 mm² to 2.5 mm²
Caution: Please observe the supply voltage and the
maximum power consumption of the actuator as
indicated on the actuator‘s name plate!
Connect wires as per the enclosed wiring diagram.
19
20
21
22
23
18
14
15
16
17
13
12
11
10
9
8
7
1
2
3
5
6
4
plug module
F
igure
8
:
Main board

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Ab
Figure 11: Wiring diagram for wiring to the main board
Figure 12: Electrical terminals with local control PSC.2 with 1-phase AC/DC
The wiring diagram with Fieldbus and the above mentioned wiring diagrams are supplied with the actuator.

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Figure 13: Electric terminals with local control PSC.2 with 3-phase AC
Caution: Please observe the supply voltage and the maximum power consumption of the actuator as indicated on
the actuator‘s name plate!
Close the cover of the actuator: Close the cover of the terminal box:
Figure 14: Close the cover
After wiring is completed, put on the cover
properly, tighten the 4 screws crosswise, and
tighten the cable glands. After connecting all the required wires, tighten the
modules again and put on the cover properly.
Tighten the 4 screws crosswise, and tighten the
cable glands.
Wiring of Protective Earth (PE) has to be
made to terminal 24!
F
igure
15
:
Close the cover

Caution: Close cover and cable glands properly to ensure enclosure as per the specified rating (IP67 or IP68).
8.3.2 Input Terminals
8.3.2.1 Set-Value
Terminals 1 through 3 are used to receive a parameterisable modulating set-value for control operation within the
range of 0-20 mA or 0-10V.
8.3.2.2 Sensor Feedback for Process Controller (optional)
Terminals 15 through 17 (main board) resp. 10 through 12 (terminal box) are used to receive a process sensor‘s
feedback to the - optional - process controller, in the parameterisable range of 0-20 mA or 0-10 V.
Caution!
The following binary input terminals (8.3.2.3 & 8.3.2.4) have priority over the
modulating set-value. If the actuator is parameterised for modulating service,
these set-value settings are disregarded in case a binary signal is applied. Only after
disconnection of the binary signal the actuator will reposition according to the set-
value applied.
8.3.2.3 Binary Input
Terminals 9 through 11 (main board) resp. 17 through 19 (terminal box) are for binary open/close signals. Standard
voltage level is 24 V to 230 V; see wiring diagram. The actuator is then driven in 3-point service.
8.3.2.4 Fail-safe port for Binary Input (optional)
The fail-safe port of the terminals 12 and 13 (main board) resp. 25 and 26 (terminal box) allows to drive the actuator
to a parameterised safety position by applying a voltage of 24 V to 230 V.
8.3.3 Output Terminals
8.3.3.1 Active Position Feedback
Active position feedback is adjustable within the range of 0-20 mA or 0-10 V.
Main board: terminals 4 - 6
Terminal box: terminals 4 - 6
8.3.3.2 Additional Position Switches (optional)
The activation points of the optional position switches can be mechanically adjusted via two cams. The switches can
be accessed as potential-free changeover contacts. The standard switches with silver contacts are rated to 230
VAC/5 A. Special switches with gold plated contacts for low power (up to 100 mA and 30V) are available on request.
Limit switch board: terminals X6 / 1-3 or X6 / 4-6 respectively
Terminal box: terminals 22/27/28 or 23/29/30 respectively
8.3.3.3 Voltage Feed to Process Sensor (optional)
Terminals 14 and 17 provide an unregulated output voltage of 21 to 40 VDC at maximum 100 mA to feed an external
process sensor.
Main board: terminals 14 + 17
Terminal box: terminals 9 + 12
14

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8.3.3.4 Fault Indication Relay
This potential-free relay contact allows to display adjustable fault indication to the control room with a maximum
load of 24 VDC/100 mA. See instruction manual for software PSCS.
Main board: terminals 7 + 8
Terminal box: terminals 20 + 21
8.3.4 Fieldbus interface (optional)
Optionally a fieldbus interface can be fitted to the AMS-actuator, with wiring to a terminal block or an external
socket.
-> See special operating instruction for AMS-Fieldbus.
8.4 Accessories
8.4.1 Space Heater (optional)
Actuators PS-AMS PSQ can be fitted with a space heater. When using actuators in environments with high
temperature fluctuations or high humidity, we suggest a heating resistor be fitted to prevent the build-up of
condensation within the enclosure.
F
igure
17
:
Mounting and connecting of the
space heater
Mounting of the space heater has to be made to the
indicated place on the base plate by using the
screws provided.
F
igure
16
:
Mounting and connecting of
the space heater
In actuators
PS
-
AMS the space heater is powered
via the power supply of the actuator does not have
to be fed separately. For retro-fitting the heating
resistor, wiring of the two cables has to be made to
the terminals on the main board as per the pictures.
Route the cables in a way to prevent
them from being squashed by the
main cover, and from being touched
by moving parts inside the actuator.

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8.4.2 Adjusting Additional Position Switches (optional)
For PS-AMS PSQ two switches for position feedback are available as factory-mounted option. They are available with
silver contacts (for currents between 10 mA and 5 A at maximum 230 V). Special switches with gold plated contacts
for low power (up to 100 mA and 30V) are available on request. Connection goes to terminal X6 or terminals
22/27/28 and 23/29/30 in case of wiring to the terminal box.
9. Status Display / Operating Element / Communication
9.1 Status LEDs
9.2 Commissioning button
Red LED for
status indication
F
igure
18
: Adjusting the cams
The cams for activating the switches are mounted
on a shaft by means of a friction coupling. They are
adjustable by a screwdriver with a small end, using
the bride (3) as support. At actuators closing
clockwise, the lower cam (1) activates the switch for
closing direction, the upper cam (2) for opening
direction.
F
igure
20
:
Commissioning button
The commissioning button for starting the
automatic commissioning run (to adjust the
actuator to the valve) is located beside the LEDs.
-> See chapter 10.1 “Cut-off in end positions” and
11.1.2. “Commissioning Procedure”
Unscrewing the cap reveals a red and a green LED to
indicate the status of the actuator.
Option Feldbus:
Another single red LED (optional) signals the status
of the optional fieldbus interface. -> See special
operating manual for AMS-Fieldbus
3
2
1
Red L
ED for
fieldbus display
button
F
igure
19
:
Display LEDs
Green LED for
status indication
X6

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port
9.3 Communication Port
10. Operation
All internal parameters, like required motor torque, actual position, functional status, etc., are being permanently
monitored during operation of the actuator PS-AMS. This ensures that the actuator positions with optimum
accuracy, and closes the valve always tight. Deviations can be read out via communication software PSCS or via local
control PSC.2 (see respective instruction manuals), or can be displayed to the control room using the fault indication
relay. This provides maximum safety of the process.
Cut-offs of the PS-AMS actuators can be adjusted to meet the valve function in an optimum way by using the
communication software PSCS (using a special interface cable, or optionally Bluetooth connection). This will result in
different behaviour of the actuator. In case a position is surpassed or not reached, this can be read out via the Fault
Indication Relay or via the communication software PSCS.
10.1 Cut-off by Force / Torque
The actuator delivers the programmed maximum force / torque each time when driving to this end position. If the
closing point inside the valve dislocates, e.g. when a seat gasket wears, then the actuator will drive further in its
possible actuation range to try to reach the programmed force / torque.
10.2 Cut-Off by Position automatically
In normal operation, the actuator will stop at the position which was found at a mechanical stop in the valve or the
actuator during Automatic Commissioning. If the closing point inside the valve dislocates, the actuator will NOT
follow this dislocation but it will always stop at the point initially found.
10.3 Cut-Off by Position
In normal operation, the actuator will stop at the point which was defined by Manual Commissioning. This position is
not depending on any mechanical stop inside valve or actuator.
F
igure
21
:
Communication port
Communication and parameterising via computer is
done using a special communication cable to a RJ45
socket. All actuator parameters are adjustable using
the communication software PSCS.
-> See operating instruction PSCS.

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11. Commissioning
The actuator is shipped in the „not commissioned“ condition with the green LED flashing slowly. There will be no
response to any input (set value or open/close signal). To make the actuator operational, it has to be commissioned
to a valve.
Depending on the type of cut-offs programmed (see 10.1), there are two ways to do commissioning:
- Automatic commissioning is done if at least one of the cut-offs is set to be “by force/torque” or “by position
automatically”.
- Manual commissioning has to be made in case both cut-offs are “by position”, either via software PSCS or via
control box PSC.2.
11.1 Automatic Commissioning
This is performed if at least one of the cut-offs is set to be “by force/torque” or “by position automatically”.
During automatic commissioning the actuator goes through the full programmed valve stroke / angle automatically.
Parameters specific to the valve are being measured and calculated values are permanently stored in the actuator.
At the same, set value and position feedback range are scaled.
To enable Automatic Commissioning, a mechanical stop is required in at least one end position (usually the closed
position) of the valve. This mechanical stop can be either given by design of the valve, or it may be adjusted by the
stop screws of the actuator (only when cut-off “by position automatically“ is programmed).
Caution!
Electrical operation of the actuator is allowed only after mounting to a
valve!
To avoid injuries due to live or rotating components, commissioning is
allowed only while the main cover of the actuator is closed.
Attention! Observe precautions for handling. Electrostatic sensitive
devices.
The electrical connection and commissioning with mains voltage
applied may only be carried out by trained specialist personnel!
Do not touch any connection lines during commissioning!

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11.1.1 Adjusting the Mechanical Stops PSQ103-1503AMS
Shown is the adjustment of a mechanical stop in closing direction for a valve closing clockwise.
Item 1: Allen screw for CLOSED position
Item 2: Allen screw for OPEN position
Item 3: protective caps
11.1.2 Setting the Mechanical Stops PSQ2003-2803AMS
Pos. 1:Einstellschraube für ZU-Stellung
Pos. 2:Einstellschraube für AUF-Stellung
When adjusting a mechanical stop, drive the actuator only by
handwheel, not electrically!
F
igure
22
:
Mechanical stops PSQ103-1503AMS
 Remove the protection cap (Figure 22, item 3) from either stop screw.
 Unscrew both hexagon sockets anti-clockwise by approximately 5
turns.
 Move the actuator to the closed position by turning the handwheel
clockwise.
 Turn stop screw for closed position (Figure 22, item 1) to the stop.
 Move the actuator to the open position by turning the handwheel anti-
clockwise.
 Turn stop screw for open position (Figure 22, item 2) to the stop.
 Screw on protection cap.
F
igure
23
:
Mechanical stops PSQ2003/2803AMS
 Unscrew both hexagon sockets anti-clockwise by approximately 5
turns.
 Move the actuator to the closed position by turning the
handwheel anti-clockwise.
 Turn stop screw for closed position (Figure 23, item 1) to the stop.
 Move the actuator to the open position by turning the handwheel
clockwise.
 Turn stop screw for open position (Figure 23, item 2) to the stop.
 Tighten hexagon nuts.
Item 1: Stop screw CLOSED position
Item 2: Stop screw OPEN position

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Commissioning button
11.1.3 Commissioning Procedure
F
igure
24
:
Commissioning button
Ensure that all mechanical and electrical
connections have been made properly. Switch on
power supply. Unscrew the side cap for the
actuator’s main cover and press the commissioning
button with an insulating pin for about 3 seconds.
Caution!
The actuator will now travel through the full valve
angle!
F
igure
25
:
Automatic commissioning procedure
The automatic commissioning run start now. The
actuator will drive through the full adjusted range.
The green LED flashes quickly during this
commissioning run.
After finishing it the actuator is ready for operation.
The green LED glows permanently as long as there is
no malfunction. See status indication summary in
chapter 17. Tracing faults.
Watch the valve’s moving element during this run to
ensure that both end positions are reached
properly. If not, adjust the stop screws (unscrew if
end position is not reached, screw in if position is
overridden) and start commissioning run again.