Spirax Sarco AEL8 Series User manual

IM-P714-02 CTLS Issue 1 1
AEL8 Series Electric actuator
1. Safety information
2. General product
information
3. Installation
4. Electrical connections
5. Actuator accessories and
spares
6. Commissioning
7. Maintenance
8Declaration of Conformity
© Copyright 2023
Printed in GB
1000008120
AEL8 Series
Electric Linear Actuators
Installation and Maintenance Instructions
IM-P714-02
CTLS Issue 1

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AEL8 Series Electric actuator
1. Safety information
Safe operation of this product can only be guaranteed if it is properly installed, commissioned,
used and maintained by qualified personnel (see Section 1.19) in compliance with the operating
instructions. General installation and safety instructions for pipeline and plant construction, as
well as the proper use of tools and safety equipment must also be complied with.
See separate Installation and Maintenance Instructions for the control valve.
If the actuator is handled improperly or not used as specified, the resultant may:
- cause danger of the life and limb of the third party,
- damage the actuator and other assets belonging to the owner,
- hinder the performance of the actuator.
1.1 Wiring notes
Every effort has been made during the design of the actuator to ensure the safety of the user, but
the following precautions must be followed:
i) Maintenance personnel must be suitably qualified in working with equipment containing
hazardous live voltages.
ii) Ensure correct installation. Safety may be compromised if the installation of the product is
not carried out as specified in this manual.
iii) Isolate the actuator from the mains supply before opening the unit.
iv) The actuator is designed as an installation category II product, and is reliant on the building
installation for overcurrent protection and primary isolation.
v) Wiring should be carried out in accordance with IEC 60364 or equivalent.
vi) Fuses should not be fitted in the protective earth conductor. The integrity of the installation
protective earth system must not be compromised by the disconnection or removal of other
equipment.
vii) A disconnecting device (switch or circuit breaker) must be included in the building installation.
This must be in close proximity to the equipment and within easy reach of the operator.
- There must be a 3 mm contact separation in all poles.
-It must be marked as the disconnecting device for the actuator.
- It must not interrupt the protective earth conductor.
- It must not be incorporated into a mains supply cord.
- The requirements for the disconnecting device are specified in IEC 60947-1 and IEC 60947-
3 or equivalent.
viii) The actuator must not be located in such a way that the disconnecting device is made difficult
to operate.

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AEL8 Series Electric actuator
1.2 Safety requirements and electromagnetic compatibility
This product is marked.
It complies with the requirements of 73/23/EEC as amended by 93/68/EEC on the harmonisation of
the law of Member States relating to electrical equipment designed for use within certain voltage
limits (LVD), by meeting the standard for safety of electrical equipment for measurement control
and laboratory use. This product complies with the requirement of 89/336/EEC as amended by
92/31/EEC and 93/68/EEC on the approximation of laws of the Member States relating to
Electromagnetic Compatibility, by meeting the generic standard of emissions for an industrial
environment and the generic standard of immunity for an industrial environment. The product may
be exposed to interference above the limits of industrial immunity if:
- The product or its wiring is located near to a radio transmitter.
- Excessive electrical noise occurs on the mains supply.
- Cellular telephones and mobile radios may cause interference if used within approximately
one metre of the product or its wiring. The actual separation necessary will vary according to
the power of the transmitter.
- Power line protectors (ac) should be installed if mains supply noise is likely.
- Protectors can combine filtering, suppression, surge and spike arrestors.
For a copy of the declaration of conformity please see pages 43 and 44.
1.3 Intended use
Referring to the Installation and Maintenance Instructions, name-plate and Technical Information
Sheet, check that the product is suitable for the intended use/application.
i) Check products suitability to ensure product is suitable in relation to the thrust required to
modulate and close the valve. (Refer to TI-P714-01)
ii) Check that actuator is suitable for the operating environment and insure adequate protection
is implemented when required
iii) Determine the correct installation situation.
iv) Spirax Sarco products are not intended to withstand external stresses that may be induced by
any system to which they are fitted. It is the responsibility of the installer to consider these
stresses and take adequate precautions to minimise them.
1.4 Access
Ensure safe access and if necessary a safe working platform (suitably guarded)before attempting
to work on the product. Arrange suitable lifting gear if required.
1.5 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.

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AEL8 Series Electric actuator
1.6 Hazardous liquids or gases in the pipeline
Consider what is in the pipeline or what may have been in the pipeline at some previous time.
Consider: flammable materials, substances hazardous to health, extremes of temperature.
1.7 Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, extremes of
temperature, hot surfaces, fire hazard (e.g. during welding), excessive noise, moving machinery.
1.8 The system
Consider the effect on the complete system of the work proposed. Will any proposed action (e.g.
closing isolation valves, electrical isolation) put any other part of the system or any personnel at
risk? Dangers might include isolation of vents or protective devices or the rendering ineffective
of controls or alarms. Ensure isolation valves are turned on and off in a gradual way to avoid system
shocks.
1.9 Pressure systems
Ensure that any pressure is isolated and safely vented to atmospheric pressure. Consider double
isolation (double block and bleed) and the locking or labelling of closed valves. Do not assume
that the system has depressurised even when the pressure gauge indicates zero.
1.10 Temperature
Allow time for temperature to normalise after isolation to avoid danger of burns.
The actuator must not be insulated. When coupled to a valve operating on high temperature media,
if there is a risk of burning through handling (intentional or accidental), it is recommended that
suitable methods of prevention are implemented e.g. machine or a visual warning.
1.11 Tools and consumables
Before starting work ensure that you have suitable tools and/or consumables available. Use only
genuine Spirax Sarco replacement parts.
1.12 Protective clothing
Consider whether you and/or others in the vicinity require any protective clothing to protect against
the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and
dangers to eyes and face.
1.13 Permits to work
All work must be carried out or be supervised by a suitably competent person. Installation and
operating personnel should be trained in the correct use of the product according to the Installation
and Maintenance Instructions. Where a formal 'permit to work' system is in force it must be complied
with. Where there is no such system, it is recommended that a responsible person should know
what work is going on and, where necessary, arrange to have an assistant whose primary
responsibility is safety. Post 'warning notices' if necessary.

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AEL8 Series Electric actuator
1.14 Handling
Manual handling of large and/or heavy products may present a risk of injury. Lifting, pushing,
pulling, carrying or supporting a load by bodily force can cause injury particularly to the back.
You are advised to assess the risks taking into account the task, the individual, the load and the
working environment and use the appropriate handling method depending on the circumstances
of the work being done.
1.15 Safe lifting practice
Never use the actuator to lift a valve. It is recommended to lift the complete valve assembly using
the correct equipment(s) and techniques so as not to cause damage or injury. Valves should be
supported under the inlet and outlet connections, not the actuator (including hand wheel or
accessories), and careful attention should be made to prevent the valve from rotating during the
lift sequence. When installed, neither the actuator, valve or its accessories should be used as a
hand hold or step for access to other parts of the plant.
1.16 Residual hazards
In normal use the external surface of the product may be very hot. If used at the maximum
permitted operating conditions the surface temperature of some products may exceed
temperatures of 90 °C (194 °F).
1.17 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, this product is recyclable
and no ecological hazard is anticipated with its disposal providing due care is taken.
-REACH. Should any substances of very high concern be found within a product, details of the
location will be identified within the technical information page 4: Materials.
Further information about product compliance is be available at:
www.spiraxsarco.com/product-compliance
1.18 Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment Law, when
returning products to Spirax Sarco they must provide information on any hazards and the
precautions to be taken due to contamination residues or mechanical damage which may present
a health, safety or environmental risk. This information must be provided in writing including
Health and Safety data sheets relating to any substances identified as hazardous or potentially
hazardous.

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AEL8 Series Electric actuator
1.19 Responsibilities of the operator and operating
(including maintenance) personnel.
The operator is responsible for ensuring that safe systems of operation and practice are
implemented and maintained. Only competent persons must be allowed to be able to operate and
maintain these devices, and these persons must be familiar with, and comply with the applicable
health and safety standards or guidelines.
The installation and maintenance instructions should form part of the standard operating
procedures for maintenance and must therefore be kept in an accessible location and in a legible
condition. Product identification and safety related labels must also be kept in a clean and legible
condition. Identification and safety labels must be replaced if they become damaged or obscured
in operation.
Copyright © Spirax-Sarco Limited 2023
All rights reserved
Spirax-Sarco Limited grants the legal user of this product (or device) the right to use the
Work(s) solely within the scope of the legitimate operation of the product (or device). No
other right is granted under this licence. In particular and without prejudice to the generality
of the foregoing, the Work(s) may not be used, sold, licensed, transferred, copied or
reproduced in whole or in part or in any manner or form other than as expressly granted
here without the prior written consent of Spirax-Sarco Limited.

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AEL8 Series Electric actuator
2. General product information
2.1 Introduction
The AEL8 series electric linear actuators are only suitable for the use on Spirax Sarco group valves. Refer
to TI-P714-01 for product compatibility and linkage requirements. The AEL8 Series actuators must not be
used for any other purpose. Actuators will normally be supplied fitted to the control valve. When supplied
separately, ensure the actuator selected is capable of providing the force necessary to close the two-port
or three-port control valve against the expected differential pressure. See the appropriate product specific
Technical Information Sheet for full details of the control valve.
Actuator cover
Actuator baseplate
Thread adaptor Actuator pillar
Actuator spindle
Actuator handwheel
Fig. 1 AEL8 General arrangement

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AEL8 Series Electric actuator
2.2 Series in the AEL8 range
Product Name
A Actuator A
E Electric E
L Linear L
8Model 8
Thrust ( kN)
2 2.0 kN
2
3 4.5 kN
4 6.0 kN
5 8.0 kN
6 12.0 kN
7 15.0 kN
Stroke (mm)
2 60mm
2
3 80mm
Speed @ 30%
2 Medium 0.8-1.9 mm/s
2
3 High 2.0+ mm/s
Supply voltage
1 90….264 Vac wide range input
3
3 24 Vac / 24 Vdc
Control signal P Modulating (0)4-20mA / 0(2)-10V Positioner P
Failure mode
X None
S
S Super-Capacitor Non-Retrofit option
Options
XNone X
O I/O Module
EEasiHeat M12

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AEL8 Series Electric actuator
2.3 Operating principle
The AEL8 Series is a range of linear electric actuators of various voltages and thrusts suitable for the
modulation of Spirax Sarco Group valves by means of modulating signal. Independent of the control method,
the actuators typically uses two electro-mechanical force dependent (torque) switches to determine the end
position of the actuator stroke in both directions and stop the actuator motor i.e. uses the end stops within
the valve in order to determine stroke. The force dependent switches do not require any adjustment to
correspond to valves with different lengths of stroke.
The positioner card can be set locally to accept various input control signals. The position feedback signal
automatically defaults to match the input signal.
The shutdown module when fitted can drive the actuator to either an open or closed position. A 24 Vdc input
signal can also be used to drive an actuator to a safe end stop position.
Caution
The shutdown module consists of a factory fitted supercapacitor system. This
module can drive the valve to a safe position as identified by a process risk
assessment.
Important
The shutdown module is NOT a safety device. A safety device should always
operate independently of the control device. Please contact Spirax Sarco for
further guidance.

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AEL8 Series Electric actuator
3. Installation
Before considering installation of an AEL8 Series actuator please read to Section 1 "Safety
Information" on page 2.
Installation awareness
- Lifting and fitting of actuators increases the risk of personal injury
- Mains connection and commissioning of the AEL8 Series actuator requires
specialist knowledge of electrical circuits and systems, and the inherent
dangers. A working knowledge of linear actuators is also required.
- Risk of injury by moving parts. Ensure that that the control system is disabled
and the electrical power supply is isolated to ensure that the valve and
actuator do not move without warning.
- The incorrect use of power supplies to assist the installation, commissioning
and maintenance of electrically actuated valve assemblies increases the
risk of personal injury.
- Lifting and fitting or actuators increases the risk of personal injury.
Crush hazard
When actuators are to be fitted using lifting equipment always ensure that the
actuator is carefully slung in order that it cannot fall. Never attempt to remove
a control valve from the line by using the actuator as the lifting point. The actuator
or the lifting equipment could become damaged.
Never stand under components that are being lifted. Head safety protection
must always be worn when operating on or close to equipment where lifting
operations are taking place.
Do not place hands within the actuator yoke or on the stem when isolation of
the electrical power supply has been removed.
Do not attempt to restrict actuator stroke or movement, or increase seat load
through the placing of objects within the actuator yoke. This practice could also
result in the loss of sight.
Warning - Muscular skeletal damage
For small actuators that do not require mechanical lifting aids, always ensure
that manual lifting best practice is observed. Always use two personnel where
possible and ensure that proper access is available in order to ensure a secure
foothold.

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AEL8 Series Electric actuator
3.1 Location
The actuator should be mounted above the valve and provide sufficient space to remove the cover and provide
general ease of access. When selecting the location, make sure that the actuator is not exposed to an ambient
temperature exceeding the range -20 °C to + 60 °C (-20 °C to +50 °C for actuators fitted with the shutdown
module). All actuators have an enclosure protection rating of IP65, but only when the cover is correctly fitted
(see Section 3.3).
Adequate shelter and an anti-condensation heater must be provided for outdoor installations. For internal
installations where there is a risk of condensation an anti-condensation heater should also be installed.
Refer to Technical Information Sheet TI-P714-01 for details.
3.2 Operational considerations –
Handwheel function and operation
The handwheel of the AEL8 provides two functions. The primary function is the manual operation of the
actuator for installation, commissioning or manual override of the control valve assembly. The hand wheel
is connected to the gearbox mechanism by a clutch and therefore does not move under normal operating
conditions.
Caution
Always take note of the operating direction of the hand wheel in relation to the
required direction of spindle movement. Failure to observe the correct direction
of operation could result in damage to actuator or process.
Caution
Do not operate the hand wheel when the actuator is either moving or connected
to a live control system. Both of these actions could lead to damage to the actuator
and injury to the operator.
To operate the hand wheel, press the hand wheel to the second detent toward the actuator. The hand wheel
will illuminate blue to identify manual mode engaged. Maintaining this pressure and simultaneously turning
of the hand wheel will cause actuator movement:
-Clockwise extends the actuator spindle (closes Spira-trol™ 2-port valve)
-Anti-clockwise retracts the actuator spindle (opens Spira-trol™ 2-port valve)
Releasing the pressure on the hand wheel with a light pull will disengage the hand wheel clutch from the
actuator gearbox, and the hand wheel will no longer be illuminated blue.
The second function of the actuator hand wheel is as a diagnostic tool See Section 6.3 for details.

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AEL8 Series Electric actuator
3.3 Coupling the actuator to a valve
The operator is responsible for ensuring that safe systems of operation and practice are implemented and
maintained. Only competent persons must be allowed to couple the AEL8 Series actuator to a valve, and
these persons must be familiar with, and comply with the applicable health and safety
Caution
It is possible to damage the force dependent switches by applying excessive
load by use of the hand wheel.
- Some valve and actuator combinations will require additional valve adapters and linkage kits.
Consult TI-P714-01 to ensure you have the correct valve and actuator for your application.
- Remove the actuator retaining nut from the valve and place the mounting flange over the valve bonnet
thread.
- Refit the actuator retaining nut and tighten (50 Nm for M34 or 100 Nm for M50).
- Remove the actuator pillar nuts. Using the hand wheel or hand crank, retract the actuator spindle by
approximately 50% of valve stroke to ensure that the valve is coupled with the plug away from the seat
in order to prevent valve damage.
- Untighten the four screws and remove the valve adapter locking plate and valve adapter bush from the
actuator.
- Place the locking plate over the valve stem.
- Set the valve stem lock nut at the correct Thread Engagement dimension "A" (Figure 3 and Tables on
page 14 and 15) for the relevant valve and actuator combination.
- Lift the actuator over the valve stem and place onto the mounting flange and loosely refit the actuator
pillar nuts raise the valve plug to the actuator until the threaded bush meets the actuator coupling.
Caution
Before the pillar nuts are tightened, make sure that the pillar ends are completely
inserted into the bores of the valve mounting flange. If necessary, correct the
position of the actuator using the hand wheel.
Fig. 2

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AEL8 Series Electric actuator
Fig 3. Thread engagement
A
Using the hand wheel, lower the actuator stem until it touches the valve adaptor.
With the valve adapter and actuator spindle aligned correctly and with the plug off the valve seat:
- Couple the adapter locking plate
- Tighten the pillar nuts to 30 Nm
- Tighten the 4 valve adaptor screws to 8 Nm
- Tighten the thread lock nut to 15 Nm

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AEL8 Series Electric actuator
AEL8 Valve adaptor and mounting flange selection - Spira-trol™ K & L
Actuator Thrust
DN15 - DN50
Flange Thread Adapter Engagement
(A)
AEL82 2.0 kN
EL5970 M8 AEL8 X M81
12 mm
AEL83 4.5 kN
AEL84 6.0 kN
AEL85 8.0 kN 15 mm
AEL86 12.0 kN
AEL87 15.0 kN
Actuator Thrust
DN65 - DN100
Flange Thread Adaptor Engagement
(A)
AEL82 2.0 kN
EL5971 M12 Integral 19 mm
AEL83 4.5 kN
AEL84 6.0 kN
AEL85 8.0 kN
AEL86 12.0 kN
AEL87 15.0 kN
1Included in the standard scope of supply AEL82 to AEL85

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AEL8 Series Electric actuator
AEL8 Valve adaptor and mounting flange selection - QLM & QLD
Actuator Thrust
DN15 - DN50
Flange Thread Adapter Engagement
(A)
AEL82 2.0 kN
EL5970 3M8 AEL8 X M8 1
12 mm
AEL83 4.5 kN
AEL84 6.0 kN
AEL85 8.0 kN 15 mm
AEL86 12.0 kN
AEL87 15.0 kN
Actuator Thrust
DN65 - DN100
Flange Thread Adapter Engagement
(A)
AEL82 2.0 kN
EL5971 M12 Integral 19 mm
AEL83 4.5 kN
AEL84 6.0 kN
AEL85 8.0 kN
AEL86 12.0 kN
AEL87 15.0 kN
Actuator Thrust
DN125 - DN200
Flange Thread Adapter Engagement
(A)
AEL82 2.0 kN
AEL83 4.5 kN
AEL84 6.0 kN
AEL85 8.0 kN
EL5974 M18 x 1.5 AEL8XQ18 +
AEL8Q125 128 mmAEL86 12.0 kN
AEL87 15.0 kN
1Included in the standard scope of supply AEL82 to AEL85
2Adapter must be ordered separately
3Spacer 3570003 also required

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AEL8 Series Electric actuator
4.1 Electrical connections safety information
Caution
Before commencement of any work to make the electrical connections please
read Section 1 "Safety Information".
Warning
Mains connection and commissioning of the AEL8 Series actuator requires
specialist knowledge of electrical circuits and systems, and the inherent dangers.
A working knowledge of linear actuators is also required.
The operator is responsible for ensuring that safe systems of operation and
practice are implemented and maintained. Only qualified personnel must be
allowed to make the electrical power connections to the AEL8 Series actuator,
and these personnel must be familiar with, and comply with the applicable health
and safety standards or guidelines. Failure to do so could result in death, severe
physical injuries or material damages to the actuator, valve and associated
equipment.
- Ensure that the electrical power supply is isolated
- Safeguard against the unintentional switching on by ensuring that there is a
safe system of practice in operation – e.g. lock the electrical supply isolator
- Ensure that any installation of any new power supply is compliant with local
regulations
- Check the mains connection voltage and frequency for conformity to the
actuator. Details of the requirements are identified on the AEL8 Series
actuator nameplate which can be found on the actuator baseplate
- Ensure that the power supply cable is of the correct cross Section for the
maximum expected load. Details of the requirements are identified on the
AEL8 Series actuator nameplate which can be found on the actuator
baseplate, and in the Technical Information Sheet (TI-P714-01)
- Minimum cross Section for the power supply cable is 1 mm2. Conductors
below this area can result in operational disturbances (please note maximum
cable core size 2.5 mm2for 2-6 kN actuators.
- Ensure that the power supply is correctly fused for the maximum expected
load. Details of the requirements for each AEL8 Series actuator can be found
in Tables on pages 17 and 18.
4. Eletrical connections

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AEL8 Series Electric actuator
AEL8 Actuator power consumption – 100-240 Vac
Actuator
Nomenclature
Thrust Spindle Speed Power consumption
(W)
Nominal current
(A)
AEL82221PXX
2 kN 1.6 mm/s
29 0.13
AEL82221PSX 59 0.26
AEL82221PXO 29 0.13
AEL82221PSO 59 0.26
AEL83221PXX
4.5 kN
1.6 mm/s
45 0.2
AEL83221PSX 59 0.26
AEL83221PXO 45 0.2
AEL83221PSO 59 0.26
AEL83231PXX
4.5 mm/s
112 0.49
AEL83231PSX 112 0.49
AEL83231PXO 45 0.2
AEL83231PSO 112 0.49
AEL84221PXX
6 kN
1.2 mm/s
45 0.2
AEL84221PSX 59 0.26
AEL84221PXO 45 0.2
AEL84221PSO 59 0.26
AEL84231PXX
3.6 mm/s
112 0.49
AEL84231PSX 112 0.49
AEL84231PXO 112 0.49
AEL84231PSO 112 0.49

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AEL8 Series Electric actuator
AEL8 Actuator power consumption – 24V
Actuator
Nomenclature
Thrust Spindle Speed Power consumption
(W)
Nominal current
(A)
AEL82223PXX
2 kN 1.6 mm/s
29 1.2
AEL82223PSX 59 2.5
AEL82223PXO 29 1.2
AEL82223PSO 59 2.5
AEL82223PXE 29 1.2
AEL83223PXX
4.5 kN
1.6 mm/s
45 1.9
AEL83223PSX 59 2.5
AEL83223PXO 45 1.9
AEL83223PSO 59 2.5
AEL83233PXX
4.5 mm/s
112 4.7
AEL83233PSX 112 4.7
AEL83233PXO 112 4.7
AEL83233PSO 112 4.7
AEL83233PXE 112 4.7
AEL84223PXX
6 kN
1.2 mm/s
45 1.9
AEL84223PSX 59 2.5
AEL84223PSX 45 1.9
AEL84223PXO 59 25
AEL84233PXX
3.6 mm/s
112 4.7
AEL84233PSX 112 4.7
AEL84233PXO 112 4.7
AEL84233PSO 112 4.7

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AEL8 Series Electric actuator
4.1 Removing the actuator cover
The AEL8 Series actuator cover is secured to the actuator housing by 4-off M6 socket cap-head screws.
Each screw is held into the actuator cover with an 'O' ring to prevent loss. Once all screws are loosened, the
actuator cover can be removed without interference.
Note
When replacing the cover ensure that the actuator housing seal is fully inserted
in it’s location. Gently lower the actuator cover until it meets the ingress seal.
Firmly press down the actuator cover to identify that the seal is correctly inserted
before tightening the retaining screws.
Screws should be tightened to 10 Nm
4.2 Making the electrical connection
A terminal diagram for the actuator can be found inside the actuator cover and Figure 4 of this Installation
and Maintenance Instructions.
The operator is responsible for ensuring that safe systems of operation and practice are implemented and
maintained, and the installation and maintenance instructions should form part of the standard operating
procedures for maintenance and must therefore be kept in an accessible location, and in a legible condition.
With the actuator coupled to a valve as described in Section 3, the actuator spindle in the fully extended
position, the power supply safely isolated and the actuator cover removed:
- Remove the blanking plate and fit the correct cable gland for the location. Any removed blanking plates
must be recycled or disposed of responsibly.
- Feed the electrical power supply cable through the cable gland until enough length exists within the
actuator to make all of the necessary connections easily.
- Mark the power supply cable approximately 10 mm above the actuator base plate, remove from the gland
and carefully strip the outer casing and wrapping. Dispose of the waste responsibly.
- Strip the individual cores at a length of approximately 5mm from the end, and once the correct lengths
of the individual cores have been established, the ends should be crimped with the correctly sized and
insulated crimp terminals (flat or pin type).
- Guide the cores of the power supply cable through the gland sleeve and gland, and connect the cores
to the actuator terminals as identified in the terminal diagrams below (or in the hood of the actuator)
taking care to ensure that the routing of the cores protects them from damage of moving parts or from
damage when replacing or removing the actuator cover.

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AEL8 Series Electric actuator
Power
supply 24 Vac/dc 24 - 230 Vac/dc Power supply
End switch End switch
Add switch
OptionsLogik
N L L N N L
4.3 Electrical connection
Please refer to Figure 4 for all AEL8 electrical connections unless otherwise stated.
Power supply Position overide Modulating signal Options
Setpoint Position feedback I/O Module Heater
1 2 46 51 53 59 57 56 60 58 61 54 12 15 45 7 8
- - - ▲ ▼ ▲▼ -▲▼ ▲▼ -▲▼ -▲ ▼ - - -
N L PE N + + mA+ GND V+ mA+ GND V+ L(NO) (NO) (NO) L N
Power Supply (N / 24
VDC -)
Power supply (L / 24
VDC +)
Earth
Ground for Position
Override
24Vdc Direction Open
24Vdc Direction Close
Control input 0(4) – 20
mA
Ground
Control input 0(2) –
10V
Active position
feedback mA
Ground
Active position
feedback V
24V AC/DC
I/O Module supply
stem fully retracted
End position feedback
stem fully extended
End position feedback
Fault relay
Heater
Fig 4. AEL8 Terminal diagram 100-240 Vac
1 2 51 53 46 59 60 57 58 56 61 54 12 15 18 45 7 8