CONFLOW UNIWORLD Series Manual

M/UNIWORLD-M/E
05 2020
Installation and Maintenance Manual
Electric Valves “PSL – PSL/AMS”
2 Way –3 Way
WWW.CONFLOW.IT
Servizio Assistenza
E-mail: [e-mail]

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Summary
1 –GENERAL SAFETY INFORMATION.......................................................................................................3
2 - GENERAL ASSEMBLY INSTRUCTIONS ..................................................................................................3
2.1 –ASSEMBLY ON THE SYSTEM (GENERAL NOTES).................................................................................... 3
3 –ELECTRIC VALVES TYPE 2000 EP –2100 EP –2600 EP –2700 EP –5000 EP -5100 EP –5600 EP –5700 EP
–5800 EP...............................................................................................................................................4
3.1 –COMMISSIONING (GENERAL NOTES) ................................................................................................... 5
3.2 –ELECTRIC VALVES COMMISSIONING..................................................................................................... 5
3.2.1 –ELECTRIC VALVES WITH HANDWHEEL COMMISSIONING –MANUAL FUNCTION......................... 6
3.2.2 –ELECTRIC VALVES WITH LUBRICATOR COMMISSIONING ASSEMBLED ON BONNET..................... 7
3.3 –ACTUATOR ASSEMBLY ON VALVE......................................................................................................... 7
3.3.1 –ACTUATOR REPLACEMENT–ASSEMBLY PSL202-214 AMS and PSL 201–214 BASIC ..................... 7
3.3.2 –ACTUATOR REPLACEMENT –ASSEMBLY PSL320-325 AMS PSL320-325 BASIC models on request
................................................................................................................................................................... 9
3.4 –COVER REMOVAL................................................................................................................................ 10
3.5 –“BASIC VERSION” INTERNAL SWITCHES ............................................................................................. 11
3.5.1 –BASIC VERSION” INTERNAL SWITCHES PSL201-214 .................................................................... 11
3.5.1.1 –BASIC VERSION” INTERNAL SWITCHES FORCE / STROKE ......................................................... 11
3.6 - ELECTRICAL POWER SUPPLY................................................................................................................ 12
3.6.1 –“AMS” VERSION WIRING DIAGRAMS .......................................................................................... 12
3.6.2 –“PSL BASIC” VERSION WIRING DIAGRAMS.................................................................................. 13
3.6.3 –“PSL AMS” AC / DC MONOPHASE MAIN POWER SUPPLY .......................................................... 14
3.6.4 –“PSL AMS” AC THREE-PHASE MAIN POWER SUPPLY (on request).............................................. 14
3.6.5 –“PSL BASIC” AC / DC MONOPHASE MAIN POWER SUPPLY ......................................................... 15
3.6.6 –“PSL BASIC” AC THREE-PHASE MAIN POWER SUPPLY (on request)............................................ 15
3.7 –“AMS VERSION” INTERFACES ............................................................................................................. 16
3.7.1 –COMMUNICATION INTERFACES .................................................................................................. 16
3.7.2 –INPUT TERMINALS ....................................................................................................................... 16
3.7.3 –OUTPUT TERMINALS.................................................................................................................... 17
3.8 –“AMS VERSION” ACCESSORIES ........................................................................................................... 18
3.8.1 –ANTI-CONDENSATE RESISTOR (Optional on request).................................................................. 18
3.8.2 –ADDITIONAL LIMIT SWITCH SETTING (Optional on request)....................................................... 18
3.9 –STATUS DISPLAY / COMMISSIONING ELEMENTS................................................................................ 19
3.10 –COVER CLOSURE ............................................................................................................................... 19
3.11 –“AMS SERIES” PRE-COMMISSIONING CONTROL OPERATIONS........................................................ 20

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3.11.1 –“AMS SERIES” LIMITATION IN FINAL POSITION......................................................................... 20
3.12 –“AMS SERIES” FINAL COMMISSIONING - START-UP......................................................................... 20
3.12.1 –AUTOMATIC COMMISSIONING ................................................................................................. 21
3.12.2 –MANUAL COMMISSIONING....................................................................................................... 21
3.13 –“AMS” SERIES STATUS MESSAGES.................................................................................................... 22
3.13.1 –ANOMALY SIGNALLING RELAY................................................................................................... 22
3.13.2 –ERROR INDICATIONS.................................................................................................................. 22
3.14 –MAINTENANCE ................................................................................................................................. 22
3.14.1 –BODY GASKET REPLACEMENT ................................................................................................... 22
3.14.2 –PACKING REPLACEMENT............................................................................................................ 24
3.14.2.1 –VALVES 2000 EP –5000 EP –2100 EP –5100 EP –5800 EP................................................... 24
3.14.2.2 –VALVES 2600 EP –5600 EP –2700 EP –5700 EP.................................................................... 26
3.14.3 –REPLACEMENT OF THE PLUG PROFILE - SOFT SEAL and COMPARTMENT................................ 26
3.12.5 –ACTUATOR MAINTENANCE........................................................................................................ 27
4 OPERATING ANOMALIES............................................................................................................... 27
4.1 –VALVE OPERATING ANOMALIES IN GENERAL..................................................................................... 27
4.2 –“AMS” TYPE OPERATING ANOMALIES - ACTUATOR LIST OF ERRORS ................................................ 28
5 –RISK ANALYSIS................................................................................................................................ 31
6 –ATEX ON REQUEST WITH SPECIAL ACTUATOR EXECUTION ............................................................... 32
7 –LIST OF RECOMMENDED SPARE PARTS............................................................................................ 32
8 –DECLARATIONS OF CONFORMITY ACCORDING TO DECLARATIONS IN FORCE……………………………... 33-37

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1 –GENERAL SAFETY INFORMATION
ATTENTION THIS PRODUCT WAS DESIGNED FOR USE IN THE MANUFACTURING INDUSTRY
WITHOUT MILITARY PURPOSE. IT IS STRICTLY FORBIDDEN TO USE CONFLOW PRODUCTS FOR THE
PRODUCTION OF WEAPONS OF MASS DESTRUCTION. OTHER USES MUST BE APPROVED IN ADVANCE
BY THE MANUFACTURER.
REQUIREMENTS
OF
CONFORMITY
THE IMPORT-EXPORT OF CONFLOW PRODUCTS FROM ONE COUNTRY TO ANOTHER IS REGULATED
BY SAFETY AND TRADE LEGISLATION IN THESE COUNTRIES. BEFORE SENDING THE PRODUCT TO A
THIRD COUNTRY, CHECK THE PRODUCT DOES NOT CONFLICT WITH THE REGULATIONS OF THAT
COUNTRY.
Before installing the valve, remove the plastic guards covering the flanges and the connection couplings.
ATTENTION During commissioning of the valve or during operation, do not touch the body which could conduct heat
if the fluid used is at high temperature.
ATTENTION During operation, do not touch the stem as it is in movement, it may be hot and could catch your finger
or clothing.
ATTENTION During operation, do not touch the motor, the surface temperature of the motor could rise and therefore
could cause abrasion.
ATTENTION Before starting any maintenance operations, ensure the valve is not pressurised and/or hot.
ATTENTION Do not remove the descriptive label fastened to the yoke since it reports the serial number, data which
is indispensable for tracking the valve over time.
Please refer to this number for supply of spare parts
Do not remove the stroke label which is the main reference for valve calibration
ATTENTION The electrical actuator must be handled solely and exclusively by competent and authorised staff
ATTENTION Before removing the cover of the actuator, ensure the main power supply is disabled, preventing any
possible involuntary removal. The live areas must be isolated before starting to work.
ATTENTION Ensure the actuator always works in optimal conditions, any damage or error and change of operating
characteristics, which may regard safety, must be notified.
Non-compliance with the main safety information, the standards in force and the assembly instructions can:
Cause danger for the safety of those carrying out manoeuvres or for third parties.
Damage the valve or adjacent objects.
Compromise the efficient operation of the valve.
2 - GENERAL ASSEMBLY INSTRUCTIONS
2.1 –ASSEMBLY ON THE SYSTEM (GENERAL NOTES)
Before assembling the valve, accurately clean the tubing with compressed air, water or another blowing fluid to eliminate foreign bodies,
welding waste and various dirt that could damage the sealing surfaces of the valve.
ATTENTION Assemble the valve with the direction arrow imprinted on the body in the same direction as the tubing
fluid.
Assembly is however recommended of a “Y” filter (our “FY” series) on the tubing, upstream of the valve.
Assembly of the valve can be carried out in the vertical or horizontal position, see Figure 1, page 4. You are however advised to
assemble vertically to prevent wear of the trim due to the weight and relevant rubbing.
ATTENTION It is forbidden to weigh the valve down with foreign objects. It is compulsory to protect the valve from
external stress.
ATTENTION The PSL-AMS actuators can work at ambient temperatures between
–20 / + 60 °C. The operating modes correspond to DIN EN 60034:-1:S2 for the short cycle and S4 for the standard
operations. The degree of protection is IP65, IP67 on request, in compliance with standard EN 60529
ATTENTION During installation of the valve, leave sufficient space to allow recover of the cover, see Fig.2

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ATTENTION
EXTERNAL USE
When using the actuators
in environments with
temperature fluctuations
or high humidity, you are
advised to use an anti-
condensate resistor as
well as a higher degree of
protection (optional
accessories).
3 –ELECTRIC VALVES TYPE 2000 EP –2100 EP –2600 EP –2700 EP –5000 EP -5100 EP –5600 EP
–5700 EP –5800 EP
PSL202-204 AMS
PSL210-214 AMS
(Stroke 50)
PSL320-325AMS ON REQUEST
Figure 2: Dimensions mm –AMS Version
90°
90
°
Figure 1: Installation position

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3.1 –COMMISSIONING (GENERAL NOTES)
The valves are supplied calibrated and tested, ready to work in the conditions requested by the client during the order phase. Having
ensured all warnings have been respected, slowly open the shut-off valves upstream and downstream of the valve.
THE PACKING IS MAINTENANCE-FREE.
ATTENTION After the first working hour, check tightening of the nuts on the body unit according to the “Nut tightening
forces” table
ATTENTION Comply with the values in the “Nut tightening forces” table each time maintenance operations are carried
out.
ATTENTION If the valve is equipped with a BELLOWS seal, never rotate the stem for any reason. A possible wrong
manoeuvre could cause torsion and breakage of the bellows.
3.2 –ELECTRIC VALVES COMMISSIONING
The PSL-AMS actuators were designed as valve electrical actuators. The actuator is assembled on the value using small columns.
The mechanical power is generated by a 24 volt DC motor, which is controlled electronically using pulse width modulation (PWM). The
motor torque is transmitted from a series of cylindrical gears to a trapezoidal screw. The screw converts the torque produced into an
axial force with a screw drive. The vertical linear movement of the screw drive is self-locking and is transmitted by a connection joint to
the valve stem.
When no voltage is present or for calibration works, the actuator canbe activated in emergency mode using the handwheel (see 3.2.1),
except when the PSCP fail-safe unit is used.
PSL201-204
PSL210
PSL214
PSL320-330 ON REQUEST
Figure 3: Dimensions mm –Basic Version

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NUT TIGHTENING FORCES table
ATTENTION Always comply with the tightening valves on each maintenance
DN
NUT DESIGNATION
KEY SIZE
Nm
15-20
M8
No. 4
13
15-20
25 –32
M8
No. 6
13
15-20
40 –50
M12
No. 6
19
25-30
65-80
M16
No. 6
24
55-60
100
M16
No. 8
24
70-80
125
M16
No. 10
24
Spiral wound
60-65
PTFE
65-70
150
M20
No. 10
30
Spiral wound
60-70
PTFE
70-75
200
M20
No. 12
30
Spiral wound
60-70
PTFE
70-75
3.2.1 –ELECTRIC VALVES WITH HANDWHEEL COMMISSIONING –MANUAL FUNCTION
The handwheel is used to activate the actuator in the event of no voltage or during installation works such as assembly of the valve or
setting of the limit positions.
ATTENTION The handwheel is permanently engaged and rotates during operation of the motor in the series devices
of the PSL202-214 and BASIC version.
ATTENTION Do not exceed the electrical limit switch setting using the handwheel.
The mechanical limits must be correctly set.
If these instructions are not observed, damage or malfunctions of the actuator can occur.
Do not activate the handwheel using excessive force. If these instructions are not observed, damage or malfunctions of
the actuator can occur.
ATTENTION The actuators on request PSL320-325 AMS and BASIC version have a handwheel that must be
manually engaged, the button on the cover must be pressed to engage the handwheel.
PSL202-204 AMS
PSL201-204 BASIC
PSL210-214
AMS and BASIC
PSL210-214
PSL320-325 AMS and BASIC
ON REQUEST
Figure 3: Manual operation:

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3.2.2 –ELECTRIC VALVES WITH LUBRICATOR COMMISSIONING ASSEMBLED ON BONNET
During automatic operation, the lubricator must remain closed, turn the handwheel clockwise ref. 7
To grease the packing, proceed as follows: Close the main plug with the handwheel ref. 7
Unscrew the handwheel of the loader ref. 5, load with grease, screw back in the handwheel ref. 5 only by a few rotations.
Open the main plug using the handwheel ref. 7, screw in the handwheel ref. 5 after loading the grease inside the packing and close
the main packing again using the handwheel ref. 7. The greasing operation is recommended every 600 working hours or when the
stem moves in a linear manner.
You are advised to use anti-seize, molybdenum disulphide grease for temperatures > 200 °C
3.3 –ACTUATOR ASSEMBLY ON VALVE
The valves are supplied calibrated and tested, ready to work with the actuator assembled in the conditions requested by the client
during the order phase.
3.3.1 –ACTUATOR REPLACEMENT–ASSEMBLY PSL202-214 AMS and PSL 201–214 BASIC
The images below show assembly of a PSL 204 AMS actuator (also valid for version PSL204), the passages are however identical to
those of the types of actuators.
ATTENTION While assembling the actuator on the valve, use the handwheel and do not electrically activate the
actuator, if these instructions are not complied with, damage may be caused to people and the actuator and/or valve.
Small columns
Locking screw for
spring pack
Valve stem
Tightening nut
Joint
Flange

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1
2
3
Ensure the coupling joint can be screwed
in by hand
Manually move the coupling to the upper
end
Place the actuator on the valve
The small columns are screwed in with
hexagon socket head cap screws inserted
under the flange
4
With the stem downwards, move the coupling until the stem touches the valve.
Screw in the joint for 12 mm on stems M10 and 16 mm for stems M14
5
6
Fasten the coupling joint
Tighten the locking screws crossways with 8 Nm force.

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3.3.2 –ACTUATOR REPLACEMENT –ASSEMBLY PSL320-325 AMS PSL320-325 BASIC models on request
ATTENTION While assembling the actuator on the valve, use the handwheel and do not electrically activate the
actuator, if these instructions are not complied with, damage may be caused to people and the actuator and/or valve.
Observe the following passages for actuator assembly:
Unscrew the rotary nut (item 8) from the screw drive (item 1) and move it towards the stem of the valve (item 7).
The coupling joint must adapt to the valve stem.
Move or unscrew the coupling joint (item 3) on the valve stem and fasten to the valve stem. Secure
the coupling joint using a counter a counter-nut (item 2).
Move the valve stem with the coupling joint and the Belleville washers (item 9) in the screw drive,
screwing the rotary nut on the bottom using the cross key supplied.
Move the small columns (item 10) into the holes of the assembly flange and screw in with the locking screws.
ATTENTION Before the locking screws are screwed in, ensure the columns are completely inserted in the holes of
the assembly flange. If necessary, correct the position of the actuator using the handwheel. If these instructions are not
carried out, they may cause personal injuries or damage the valve.
Figure 4: Actuator assembly on the valve
1
=
screw drive
2
=
fastening with counter-nut
3
=
coupling joint
4
=
fastening plate
5
=
locking nut
6
=
valve body
7
=
valve stem
8
=
rotating nut
9
=
Belleville washers
10
=
small assembly columns

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3.4 –COVER REMOVAL
Figure 5: Cover Removal
ATTENTION
PSL202 AMS –PSL 210 AMS ( IP65 )
PSL201 –210 ( IP65 )
Remove the handwheel loosening it, pull the cover
upwards.
PSL214 AMS and PSL202- 210 AMS ( IP67 )
PSL214 and PSL202-210 ( IP67 )
Remove the handwheel by loosening the locking grub
screw, removethe locking screws of the actuatorcover, pull
the cover upwards.
For electrical connection, there is no need to remove the
cover.
PSL320 AMS –PSL 325 AMS ( IP65 )
PSL320 - 325 ( IP65 )
Unscrew the locking screws of the actuator.
Pull the cover upwards.

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3.5 –“BASIC VERSION” INTERNAL SWITCHES
The valves are supplied calibrated and tested, ready to work in the conditions requested by the client during the order phase. The
standard internal switches are used to block the motor in opening and closure by torque and stroke.
3.5.1 –BASIC VERSION” INTERNAL SWITCHES PSL201-214
3.5.1.1 –BASIC VERSION” INTERNAL SWITCHES FORCE / STROKE
To disconnect the limit switch depending on the force, the limit switches can be set using the spring joint compression “s”.
To carry out this operation, use the manual command handwheel:
Turn the handwheel until the
plug closes, then
Open the closure screw and
adjust the gear screw until it
clicks at end of stroke, then
tighten the closure screw
②
1 = opening position –stem withdrawn
2 = closure position –stem extended
Closure screw
Gear screw
①
Nut with milling
High limit position
Release position
Low limit position
Nut with milling

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3.6 - ELECTRICAL POWER SUPPLY
ATTENTION The electrical connection work can only be carried out by authorised staff.
When electrical works are carried out, safety regulations must strictly be complied with, observe the standards EN
60204-1 (VDE 0113 part 1) to guarantee staff safety.
The electrical supply lines must be adequately dimensioned for the maximum current required by the actuator and
must meet IEC 227 and IEC 245 standards.
ATTENTION The yellow and green cables can only be used to connect the ground protection.
When wires are inserted in cable glands, consider the maximum radius of the curve
ATTENTION The PSL-AMS and PSL electrical actuators are equipped with an internal electrical insulation device,
therefore a switch or sectioning circuit must be installed; this switch must be installed near the valve and must be easily
accessible to staff.
It is important to signal the switch or sectioning circuit as the insulation circuit of the actuator/valve
ATTENTION The electrical installation, as well as the overcurrent and overvoltage protection systems must comply
with the standards DIN IEC 60364-4-41, responsible protection class I, protection class III(24V AC / 24V DC) and also
the standard DIN IEC 60364-4-44 in compliance with the overvoltage categories of the actuator.
ATTENTION Mechanically protect all the connection and control cables paying attention to the terminals, against
accidental release, never install power supply and control cablestogether on the same line, but always use two separate
lines.
3.6.1 –“AMS” VERSION WIRING DIAGRAMS
According to the dimensions of the actuator, the electrical terminals are positioned inside the “terminals box” or under the cover.
Having completed the connection, close the cover of the terminal box and the actuator well and tighten the cable glands to ensure
protection as outlined in the specifications.
The wiring diagram can differ based on the actuators in the special version.
Figure 6: Electrical
terminals
AC/DC monophase
AC three-phase
Button
(Optional)
(Optional)
(Optional)

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3.6.2 –“PSL BASIC” VERSION WIRING DIAGRAMS
According to the dimensions of the actuator, the electrical terminals are positioned under the cover. Having
completed the connection, close the cover of the terminal box and the actuator well and tighten the cable glands to
ensure protection as outlined in the specifications.
The wiring diagram can differ based on the actuators in the special version.
X1 = Not used
X2 = Internal cable
X3 = Not used
X4 = Potentiometer 1
0-1000 Ohm
(optional)
X5/1 = Neutral
X5/2 = Phase to Open
X5/4 = Phase to
Close
X7 = Internal cable
X9 = Potentiometer 2
0-1000 Ohm
(optional)
X0 = Potentiometer 1
with PSAP
X11 = Potentiometer
1 with PSAP
connected to X9 for
output 0-1000 Ohm
X3
X0
0
X5/1
X5/4
X5/2

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3.6.3 –“PSL AMS” AC / DC MONOPHASE MAIN POWER SUPPLY
ATTENTION The electrical connection work can only be carried out by authorised staff.
Disconnect electricity and protect yourself from any possible unauthorised and/or involuntary
reconnection.
Open the Terminal Box, this includes arranging both the hard wires and the
flexible ones, the thickness can vary from 0.14 mm² to 2.5 mm² as well as
a PE screw on the structure.
Comply with the power supply and the maximum power of the actuator as
indicated on the actuator label!
Connect the power supply and command lines to the terminals (as outlined
in the wiring diagram).
3.6.4 –“PSL AMS” AC THREE-PHASE MAIN POWER SUPPLY (on request)
ATTENTION Disconnect electricity and protect yourself from any possible unauthorised and/or
involuntary reconnection.
Connect the power supply directly to the adaptor of the
internal power supply.
Connect the cables in compliance with the wiring
diagram for the AC THREE-PHASE (3.4.1)

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3.6.5 –“PSL BASIC” AC / DC MONOPHASE MAIN POWER SUPPLY
ATTENTION The electrical connection work can only be carried out by authorised
staff.
Disconnect electricity and protect yourself from any possible unauthorised and/or
involuntary reconnection.
Open the Cover, this includes
arranging both the hard wires and the
flexible ones, the thickness can vary
from 0.14 mm² to 2.5 mm² as well as a
PE screw on the structure.
Comply with the power supply and the
maximum power of the actuator as
indicated on the actuator label!
Connect the power supply and
command lines to the terminals (as
outlined in the wiring diagram).
3.6.6 –“PSL BASIC” AC THREE-PHASE MAIN POWER SUPPLY (on request)
ATTENTION Disconnect electricity and protect yourself from any possible unauthorised and/or
involuntary reconnection.
X5/14-16 = 3~Supply
X5/13 = Neutral
X5/11+12 = Limit Switch
Terminals
X5/17+18 = Closed Limit
Switch
X5/19+20 = Open Limit Switch
X4 = Potentiometer 1 Optional
X0 = Potentiometer 1 Optional
X2+X7 = Internal cables
X10 = Optional N.A. contact

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3.7 –“AMS VERSION” INTERFACES
The PSL-AMS actuator has many interfaces inside the Terminal Box. Configuration is via PSCS software or via the local control panel
PSC.2 (Optional on request).
3.7.1 –COMMUNICATION INTERFACES
For communication and parameterisation with a PC or with a
manual device, connect the communication cable to port RJ45,
the parameters of the actuator can be set using the PSCS
software.
3.7.2 –INPUT TERMINALS
3.7.2.1 - Galvanic isolation control signal
The terminals from 1 to 3 are used to receive control signals which
can be parameterised and regulated, for a control within a range
of 0-20 Ma or 0-10 V, split-range is also possible.
3.7.2.2 - Feedback signal for process control (Optional on request)
The terminals from 15 to 17 are used to receive process sensor
feedback - an optional on request - process controller, in a range
of 0-20 Ma or 0-10 V.
ATTENTION The following binary inputs (3.5.2.3 and 3.5.2.4 ) have priority over the control signal, if the actuator is
parameterised for a modulating service with control signals, these values are not considered if a binary input is applied.
After disconnecting the binary signal, the actuator will be repositioned according to the control signal applied.
3.7.2.3 –Galvanic isolation binary inputs
The terminals from 15 to 17 are used to receive process sensor
feedback - an optional on request - process controller, in a range
of 0-20 Ma or 0-10 V.
90 10 11

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3.7.2.4 –Fail safe port for binary inputs (Optional on request)
The failsafe port (terminals 12 and 13) enables activation of the
actuator in a safe position which can be calibrated, applying a
voltage of 24 volts, tele
3.7.3 –OUTPUT TERMINALS
3.7.3.1 - Active feedback signal
The terminals from 4 to 6 give an active feedback signal,
parameterised with a range of 0-20 mA or 0-10 V.
3.7.3.2 –Additional signalling limit switch (Optional on request)
The activation points of the optional additional signalling limit
switch can be freely calibrated via cams.
Terminals 18/19 and 20/21 are clean opening or closure contacts.
The standard signals are calibrated to 230 VAC/ 5°.
The special limit switches with gold-plated contacts are available
for low power (up to 100 Ma and 30V ).
3.7.3.3 –Power supply for process sensor
The terminals 14 and 17 offer the advantage of non-adjusted
output from 21 to 40 VAC, at a maximum 100 mA to power an
external process sensor.
3.7.3.4 –Anomaly signalling relay (Optional on request)
This normally open clean contact relay (terminals 7 and 8) allows
anomaly signalling to the control cam. For configuration, use
PSCS communication software.
4 5 6
18 19 20 21

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3.7.3.5 –FIELDBUS INTERFACE (Optional on request)
Optionally, a field bus interface can be adapted to the AMS actuator by connecting a terminal block or an external socket. (additional
assembly manual available for fieldbus AMS).
3.8 –“AMS VERSION” ACCESSORIES
3.8.1 –ANTI-CONDENSATE RESISTOR (Optional on request)
The PSL-AMS actuators can be equipped with an anti-condensate resistor, when using the actuators in environments with high
temperature fluctuations or high humidity, you are advised to use an anti-condensate resistor to prevent condensate formation
Figure 7: Resistor connection
In PSL-AMS actuators, the resistor is powered using the
actuator power supply, so there is no need to be powered
separately. To replace the resistor, connect two cables to the
terminal of the motherboard as represented
in the image on the left.
The anti-condensate resistor is available in two different versions
(for 24 VAC/DC or 115-230 VAC). Choose the voltage of the
actuator based on the voltage.
Assembly of the resistor must be carried out in the position
indicated on the base, using the screws supplied, turn the cable
in such a manner they are not crushed by the main cover and not
touched by movement of the components inside the actuator.
3.8.2 –ADDITIONAL LIMIT SWITCH SETTING (Optional on request)
In the PSL-AMS there are already two position feedback switches, available as a default option. They are clean exchange contacts.
The silver-plated contacts are available (for currents between 10 Ma and 5 A, max 230 V or gold-plated contacts (for currents between
0.1 mA and 30 Ma, max 30V). Then connect to terminals 18/19 and 20/21
Figure 8: Resistor assembly

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Figure 9 –Cam adaptation
The cams for intervention of the switches are positioned on the
limit switch plate and can be calibrated using a small screwdriver.
Cam 1 is for the screw drive that retracts, while cam 2 is to extend
the screw drive which extends outside the actuator.
ATTENTION The potentiometer must not be set, non-compliance with this can damage the actuator
3.9 –STATUS DISPLAY / COMMISSIONING ELEMENTS
Figure 10 –Status display
A red and green LED inside the terminal box indicates the status
of the actuator.
Another single red LED (optional) indicates the status of the
fieldbus interface optional - see additional fieldbus manual.
The button that activates automatic commissioning (to start the
valve) is positioned inside the terminal box, under the
communication port.
3.10 –COVER CLOSURE
PSL 202 –PSL 210 AMS and BASIC VERSION (IP65) –See the label on the cover of the actuator.
ATTENTION Ensure the cover is not assembled correctly and does not interfere with movement of the handwheel
stem. Insert the cover in the two reference internal notches
PSL 214 and PSL 202-110 AMS and BASIC VERSION (IP67)
- Place the cover on the actuator and ensure the two locking screws are positioned over the relevant threaded holes.
- Delicately tighten downwards and fasten the screws using an Allen key, if the screws won’t lock, move the cover gently.
- Push the cover downwards and ensure it fits on the seal ring of the actuator.
- Fasten the screws.
PSL 320 –325 AMS and BASIC VERSION
Figure 11 Cover closure
- Ensure the seal ring is positioned correctly in its
compartment.
- Position the cover on the actuator and ensure the three
locking screws are positioned in the specific holes and
the button is positioned over the relevant pin inside the
actuator.
- Screw in using a specific screwdriver
(2)