PS Automation PS-AMS PSQ Series User manual

Operating Instructions
PS-AMS Series PSQ
Version 2018/11/19 ©2018 PS Automation GmbH
Subject to changes!

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Table of Contents
1. Symbols and safety......................................................................................................................................................3
2. Usage as per specification...........................................................................................................................................4
3. Storage ........................................................................................................................................................................4
4. Operating Conditions and Installation Position ..........................................................................................................4
4.1 Operating Conditions..............................................................................................................................................4
4.2 Installation Position ................................................................................................................................................5
5. Operating Principle......................................................................................................................................................6
6. Manual Operation .......................................................................................................................................................6
7. Mechanical Mounting .................................................................................................................................................7
7.1 Safety Note .............................................................................................................................................................7
7.2 Valve Mounting ......................................................................................................................................................7
7.3 Adjustment of the Position Indicator .....................................................................................................................7
8. Electrical Connection...................................................................................................................................................8
8.1 Safety Note .............................................................................................................................................................8
8.2 Wiring Arrangements .............................................................................................................................................8
8.3 Electric Wiring.........................................................................................................................................................8
8.3.1 Mains Supply.....................................................................................................................................................8
8.3.2 Input Terminals ...............................................................................................................................................12
8.3.3 Output Terminals ............................................................................................................................................12
8.3.4 Fieldbus interface (optional)...........................................................................................................................13
8.4 Accessories ...........................................................................................................................................................13
8.4.1 Space Heater (optional) ..................................................................................................................................13
8.4.2 Adjusting Additional Position Switches (optional)..........................................................................................13
9. Status Display / Operating Element / Communication .............................................................................................14
9.1 Status LEDs............................................................................................................................................................14
9.2 Commissioning button..........................................................................................................................................14
9.3 Communication Port.............................................................................................................................................14
10. Operation ................................................................................................................................................................15
10.1 Cut-off by Force / Torque ...................................................................................................................................15
10.2 Cut-Off by Position automatically.......................................................................................................................15
10.3 Cut-Off by Position..............................................................................................................................................15
11. Commissioning ........................................................................................................................................................15
11.1 Automatic Commissioning..................................................................................................................................15
11.1.1 Adjusting the Mechanical Stop .....................................................................................................................16
11.1.2 Commissioning Procedure ............................................................................................................................16
11.1.3 Unscrewing the Mechanical Stop .................................................................................................................17
11.1.4 Additional information..................................................................................................................................17
11.2 Manual Commissioning ......................................................................................................................................18
12. Maintenance and Repair .........................................................................................................................................19
13. Safety on Transportation.........................................................................................................................................19
14. Accessories..............................................................................................................................................................19
15. Tracing faults ...........................................................................................................................................................20
16. CE Declaration of Conformity..................................................................................................................................22

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1. Symbols and safety
General dangers of non-compliance with safety regulations
PSQ-AMS 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. Life threatening risks may occur
due to electrical voltages! 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.
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!

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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
PSQ-AMS 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 PSQ-AMS 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 15714-2.
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, outside dimensions).

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Figure 1: Outside dimensions
4.2 Installation Position
The actuator may be mounted in any desired position
except “cover facing downwards”.
Figure 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).
Actuator type
A
B
C
D
E
F
G
H
I
PSQ 103 AMS
267
161
128
105
237
158
241
111
125
PSQ 203 AMS
355
228
194
123
307
185
289
109
200
PSQ 503/703 AMS
416
240
198
172
358
235
337
128
200
PSQ 1003 AMS
416
240
198
172
289
235
362
128
250

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5. Operating Principle
The quarter-turn actuators PSQ-AMS 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 hand wheel (see
chapter 6/Manual Operation), except when using the fail-safe unit PSCP.
6. Manual Operation
A hand wheel is provided to operate the actuator in case of power failure or for valve adjustment.
PSQ-AMS actuators are supplied with hand wheel loosely added. Before operation it has to be fitted as shown below.
Figure 3: Mounting the hand wheel
The hand wheel 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 hand wheel clockwise turns the output clockwise as
well, viewed from the top.
Figure 4: Manual operation
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.

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Ab
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 hand
wheel only.
Do not operate electrically!
7.2 Valve Mounting
The actuator has a mounting flange as per ISO 5211 for mechanical connection to the valve body. Connection to the
valve shaft is made with an exchangeable drive bush.
Ensure that the mechanical dimensions of the valve flange and the valve
shaft suits the actuator flange (1).
The inner contour of the drive bush (square, round bore with keyway,
double-D) must correspond to the valve shaft. The drive bush (2) has an
indicator tooth (3) or a marking hole (4) which clearly defines the
position of the drive bush. There also is a corresponding marking at the
actuator (recess or coloured marking). The tooth may be filed off, if
appropriate.
Clean all surfaces of the connection area, slightly lubricate drive bush
and valve shaft.
Insert drive bush (2) into the actuator first.
Position the actuator on the valve. Tighten the screws in a diagonal
sequence with the required torque.
For valve mounting please ensure that the cover of the actuator is always closed in order to avoid
that components inside the actuator are damaged.
7.3 Adjustment of the Position Indicator
The position indicator is a two-coloured half ball turning
under a transparent dome with blackened quarter segments.
Take off the cover and turn the half ball as appropriate to
adjust the position indicator.
Figure 5: Valve mounting
Figure 6: Adjustment of the position indicator
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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 PSQ-AMS 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
conform 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.
8.2 Wiring Arrangements
Depending on order specification, the PSQ-AMS 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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g 5: Netzanschluss
bildung 9: Klemmen derHauptplatine
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

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Ab
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 12: Wiring diagram for wiring to the terminal box
Ab
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.
Caution: Close cover and cable glands properly to ensure enclosure as per the specified rating (IP67 or IP68).
Wiring of Protective Earth (PE) has to be
made to terminal 24!
Figure 15: Close the cover

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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
8.3.3.4 Fault Indication Relay (optional)
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.

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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 PSQ-AMS 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.
8.4.2 Adjusting Additional Position Switches (optional)
For PSQ-AMS 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.
Figure 17: Mounting and connecting of the
space heater PSQ503 –1003AMS
Mounting of the space heater has to be made to the
indicated place on the base plate by using the
screws provided.
Figure 16: Mounting and connecting of
the space heater PSQ103 - 203AMS
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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port
9. Status Display / Operating Element / Communication
9.1 Status LEDs
9.2 Commissioning button
9.3 Communication Port
Red LED for
status indication
Figure 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.
Figure 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”
Figure 21: Communication port
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
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.
3
2
1
Red LED for
fieldbus display
button
Figure 19: Display LEDs
Green LED for
status indication
X6

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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 optional 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
optional 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.
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”.
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.

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Commissioning button
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).
11.1.1 Adjusting the Mechanical Stop
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 Commissioning Procedure
When adjusting a mechanical stop, drive the actuator only by
hand wheel, not electrically!
Figure 22: Adjusting the final position
Remove the cap (fig. 22, item 3) from the stop screw for CLOSED
position.
Unscrew the Allen screw by approx. five turns.
Drive actuator clockwise by hand wheel to close the valve.
Screw-in the Allen screw until a slight resistance is felt. (fig. 22; item 1)
Drive actuator counter-clockwise by hand wheel to open the valve.
Fig. 22, item 2 is the stop screw for OPEN position.
Screw back protective caps.
Figure 23: 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!
3

17
11.1.3 Unscrewing the Mechanical Stop
Only at valves without mechanical stop in closed position:
11.1.4 Additional information
Note
If the actuator is stalled during the automatic commissioning run BEFORE reaching a desired position-dependent cut-
off, it will then store the so-obtained stroke.
Note
If, as a result of automatic commissioning, no force/torque limit is found, or if a stroke below the minimum allowed
stroke (10° in standard version) is found, the commissioning run will be aborted. The actuator returns to the “not
commissioned” condition (i.e. green LED flashing slowly), even if the actuator had been initialized correctly before
that.
Figure 25: Unscrewing the
mechanical stop
Figure 24: 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 12.
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.
In normal operation, the actuators PSQ-AMS should not stop
repeatedly by hitting a mechanical stop inside the actuator.
In case a mechanical stop inside the actuator has been adjusted for
“Cut-off by Position automatically”, after finishing the commissioning
this stop screw has to be unscrewed by one full turn mandatorily.
Allen key

18
Note
Automatic commissioning can be started via software PSCS -> See relevant operation manuals
11.2 Manual Commissioning
If both cut-offs are selected to be „by position“, the actuator must be commissioned manually using the software
PSCS or the control box PSC.
Mount the actuator to a valve, wire it and switch the power on, according to these instructions. Permanently apply
the set-value for the closed position, or the input signal „close“.
Drive the actuator to the closed position of the valve using software PSCS or control box PSC. The open position of
the valve will be calculated in accordance with the programmed valve stroke.
After manual commissioning, the actuator is ready for use. The green LED is glowing permanently.
Note
If the parameterised valve stroke, starting from the adjusted closed position, exceeds the possible actuator stroke,
then the operating stroke will be reduced to the resulting maximum possible value.
Caution!
If the LEDs display other types of signals than
“flashing green” or “glowing green permanently”,
please refer to the chapter 15 on “Tracing Faults”.
Caution!
The mains supply must not be interrupted during
the commissioning run!
Caution! The actuator operates the valve!
Caution!
The valve stroke has to be parameterised using
software PSCS or control box PSC! -> See relevant
manuals.

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12. Maintenance and Repair
Maintenance
Under the conditions of use as per specification as lined out in the data sheet, the PS-AMS
actuators are free of maintenance. All gears are lubricated for their service life and do not
require to be re-lubricated.
Cleaning
Clean the actuators with a dry soft cloth and do not use any cleaning agent. Do not use any
coarse or abrasive materials.
13. Safety on Transportation
For transportation and storage all cable glands and connection flanges have to be closed to prevent ingress of
moisture and dirt. A suitable method of packaging is required for transporting to avoid damage of coating and any
external parts of the actuator.
14. Accessories
Accessories/ Options
Add'l Position Switches
2WE
Potential-free additional position switches with silver contacts (0.1
A - 5 A switching current)
Add'l Position Switches
Gold
2WE
Gold
Potential-free additional position switches with gold contacts (0.1
mA - 100 mA switching current)
Integrated process
controller
Enables the autonomous control of a process so that an external
controller is not required.
Fail-Safe*
PSCP
Emergency power supply based on supercapacitors, safety
position OPEN, CLOSED or free defined position
Fieldbus Interface*
Digital transmission of nominal and actual value per mill or
percent, report of monitoring and diagnostic data using Profibus
DP (PSPDP) or CANOpen (PSCA) interfaces, additional interfaces
available on request
Local Control*
PSC.2
Illuminated display to show the actuator status and lockable
selector to switch between modes: automatic, manual
process ON/OFF, STOP and parameter menu. Control
buttons for manual movement, menu operation and
adjustment of parameters, display of diagnostic information
Remote Local Control
mounting separately from the actuator (incl. 10 m connection
cable)
Data Cable
PSCS-
USB
USB data cable enables the communication between the actuator
and a PC by using the software PSCS
Fault Indication Relay*
FIR
potential-free opening contact provides a freely definable
collective fault signal
Fail-Safe Port*
FSP
Signal port to drive to a "safety position", selectable fail-safe
position, standard 24 V
Corrosion Protection
K2
Increased corrosion protection incl. heating resistor
IP68
Increased enclosure IP68
Heating Resistor
HR
Heating resistor to prevent condensation
Terminal Box*
Plug and socket in an IP68 box
*not retrofittable

20
15. Tracing faults
Red LED
Green LED
Glowing
permanently
Flashing quickly
Flashing slowly
Off
Glowing
permanently
Flashing quickly
Flashing slowly
Off
Status
Probable reasons
Possible remedy
x
x
Actuator does not
respond, both LEDs are
off
1) No supply voltage applied
2) The applied voltage does not
match the actuator voltage on
the tag plate
1) Check mains supply
2) Apply correct supply voltage
x
x
Actuator does not drive
the full stroke
1) Actuator not correctly
commissioned
2) Too small stroke
programmed (in mode “one
position-dependent cut-off”)
1) Repeat commissioning
2) Check valve stroke parameters -> see
instructions AMS-PSCS
x
x
Actuator does not close
the valve properly
1) Actuator not correctly
commissioned
2) Actuator closing force/
torque too low
1) Repeat commissioning
2) Check actuator selection
x
x
Actuator is in normal
operating condition, but
does not respond to set-
value changes
1) Fixed digital set-value is
activated
2) Actuator is configured to
work with process controller
1) Check set-value parameters -> see instrucions
AMS-PSCS
2) Connect process sensor
x
x
Actuator position does
not correspond to set-
value input
A non-linear valve curve has
been parameterised
Verify parameterised characteristic -> see
instructions AMS-PSCS
Operating conditions
Probable reasons
Possible remedy
x
x
Normal operating
condition
x
x
Actuator in
commissioning mode
Commissioning mode will be left automatically
after completion
x
x
Actuator not
commissioned
Depending on the type of cut-offs, the actuator
has to be commissioned either automatically or
manually
Faults within the
actuator’s environment
Probable reasons
Possible remedy
x
x
Too high torque has
been encountered
within the valve stroke
1) Actuator not correctly
commissioned to the valve
2) Mechanical block within the
stroke path
3) Improper selection of the
actuator
1) Repeat commissioning
2) Check valve and actuator for unobstructed
running
3) Check actuator selection
x
x
1) No proper process
feedback (only in
combination with PSIC)
2+3) Maximum control
range exceeds (only in
combination with PSIC)
1) Process feedback wrongly or
not at all connected
2) Process feedback outside od
adjusted range
1) Apply the correct process feedback signal and
check polarity
2) Ensure the correct process feedback range
3) Check the process sensor and its supply
voltage