KSB EA-C Installation instructions

Control Valve Actuators
EA-C
For Type Series BOA-CVE H and BOA-H Mat E
Installation/Operating Manual

Legal information/Copyright
Installation/Operating Manual EA-C
Original operating manual
All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to a
third party without the manufacturer's express written consent.
Subject to technical modification without prior notice.
© KSB SE & Co. KGaA, Frankenthal 10/08/2018

Contents
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EA-C
Contents
1 General.................................................................................................................................................... 5
1.1 Principles ...........................................................................................................................................................5
1.2 Target group.....................................................................................................................................................5
1.3 Symbols .............................................................................................................................................................5
2 Safety...................................................................................................................................................... 6
2.1 Key to safety symbols/markings.......................................................................................................................6
2.2 General..............................................................................................................................................................6
2.3 Intended use .....................................................................................................................................................7
2.4 Personnel qualification and training...............................................................................................................7
2.5 Consequences and risks caused by non-compliance with this manual .........................................................7
2.6 Safety awareness ..............................................................................................................................................7
2.7 Safety information for the user/operator.......................................................................................................7
2.8 Safety information for maintenance, inspection and installation ................................................................8
2.9 Unauthorised modes of operation..................................................................................................................8
3 Transport/Temporary Storage/Disposal............................................................................................... 9
3.1 Checking the condition upon delivery............................................................................................................9
3.2 Transport...........................................................................................................................................................9
3.3 Storage/preservation........................................................................................................................................9
3.4 Disposal/recycling .............................................................................................................................................9
4 Description............................................................................................................................................ 10
4.1 General description ........................................................................................................................................10
4.2 Designation.....................................................................................................................................................10
4.3 Name plate......................................................................................................................................................10
4.4 Design details..................................................................................................................................................11
4.5 Installation types ............................................................................................................................................12
4.6 Noise characteristics .......................................................................................................................................12
4.7 Dimensions and weights ................................................................................................................................12
5 Reassembly........................................................................................................................................... 13
5.1 Safety regulations...........................................................................................................................................13
5.2 Checking prior to installation/assembly........................................................................................................13
5.3 Mounting the actuator ..................................................................................................................................14
5.4 Electrical connection ......................................................................................................................................16
5.5 Interfaces.........................................................................................................................................................19
5.6 Heating resistor (optional).............................................................................................................................21
5.7 Setting the limit switches...............................................................................................................................21
6 Commissioning/Start-up/Shutdown................................................................................................... 23
6.1 Prerequisites for commissioning/start-up......................................................................................................23
6.2 Commissioning/Start-up.................................................................................................................................23
6.3 Operating limits..............................................................................................................................................24
6.4 Shutdown........................................................................................................................................................24
6.5 Returning to service .......................................................................................................................................24
7 Servicing/Maintenance........................................................................................................................ 25
7.1 Safety regulations...........................................................................................................................................25
7.2 Removing the actuator ..................................................................................................................................26
7.3 Maintenance/inspection.................................................................................................................................26
7.4 Lubrication......................................................................................................................................................27
7.5 Cleaning ..........................................................................................................................................................27
7.6 Mounting the actuator ..................................................................................................................................27
7.7 Spare parts stock.............................................................................................................................................27

Contents
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8 Trouble-shooting.................................................................................................................................. 28
9 Related Documents.............................................................................................................................. 30
9.1 General assembly drawing, handwheel on top (EA-C 20 to 140)................................................................30
9.2 General assembly drawing, side-mounted handwheel (EA-C 200 to 250)..................................................31
9.3 Wiring diagrams .............................................................................................................................................32
9.4 Technical data.................................................................................................................................................35
10 EU Declaration of Conformity............................................................................................................. 40
11 Declaration of Incorporation of Partly Completed Machinery ......................................................... 41
Index ..................................................................................................................................................... 42

1 General
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EA-C
1 General
1.1 Principles
This operating manual is valid for the type series and variants indicated on the front
cover.
The manual describes the proper and safe use of this equipment in all phases of
operation.
The name plate indicates the type series, the main operating data and the serial
number. The serial number uniquely describes the product and is used as
identification in all further business processes.
In the event of damage, immediately contact your nearest KSB Service centre to
maintain the right to claim under warranty.
1.2 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel.
1.3 Symbols
Table1: Symbols used in this manual
Symbol Description
✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨Result of an action
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product

2 Safety
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2 Safety
!DANGER
All the information contained in this section refers to hazardous situations.
In addition to the present general safety information the action-related safety
information given in the other sections must be observed.
2.1 Key to safety symbols/markings
Table2: Definition of safety symbols/markings
Symbol Description
!DANGER
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
!WARNING
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION
This signal word indicates a hazard which, if not avoided, could
result in damage to the machine and its functions.
Explosion protection
This symbol identifies information about avoiding explosions in
potentially explosive atmospheres in accordance with EU Directive
2014/34/EU (ATEX).
General hazard
In conjunction with one of the signal words this symbol indicates a
hazard which will or could result in death or serious injury.
Electrical hazard
In conjunction with one of the signal words this symbol indicates a
hazard involving electrical voltage and identifies information about
protection against electrical voltage.
Machine damage
In conjunction with the signal word CAUTION this symbol indicates
a hazard for the machine and its functions.
2.2 General
This operating manual contains general installation, operating and maintenance
instructions that must be observed to ensure safe operation of the system and
prevent personal injury and damage to property.
The safety information in all sections of this manual must be complied with.
The operating manual must be read and understood by the responsible specialist
personnel/operators prior to installation and commissioning.
The contents of this operating manual must be available to the specialist personnel
at the site at all times.
Information attached directly to the product must always be complied with and kept
in a perfectly legible condition at all times. This applies to, for example:
▪Markings for connections
▪Name plate
The operator is responsible for ensuring compliance with all local regulations not
taken into account in this operating manual.
This electric motor has been designed and constructed in accordance with the
requirements of Directive 2014/35/EU (“Low-voltage Directive”). It is intended for use
in industrial plants.
If the motor is used in countries outside the European Community, adhere to the
regulations applicable to the relevant country. Also observe any local and industry-
specific regulations governing installation and safety.

2 Safety
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2.3 Intended use
▪Only operate actuators which are in perfect technical condition.
▪Do not operate partially assembled actuators.
▪Generally observe the operating limits given.
▪Consult the manufacturer about any use or mode of operation not described in
the data sheet or product literature.
Prevention of foreseeable misuse
▪Never exceed the permissible application and operating limits specified in the
data sheet or product literature regarding pressure, temperature, etc.
▪Observe all safety information and instructions in this manual.
2.4 Personnel qualification and training
All personnel involved must be fully qualified to transport, install, operate, maintain
and inspect the product this manual refers to. The responsibilities, competence and
supervision of all personnel involved in installation, operation, maintenance and
inspection must be clearly defined by the operator.
Deficits in knowledge must be rectified by means of training and instruction
provided by sufficiently trained specialist personnel. If required, the operator can
commission the manufacturer/supplier to train the personnel.
Training on the product must always be supervised by specialist technical personnel.
2.5 Consequences and risks caused by non-compliance with this manual
▪Non-compliance with these operating instructions will lead to forfeiture of
warranty cover and of any and all rights to claims for damages.
▪Non-compliance can, for example, have the following consequences:
– Hazards to persons due to electrical, thermal, mechanical and chemical
effects and explosions
– Failure of important product functions
– Failure of prescribed maintenance and servicing practices
– Hazard to the environment due to leakage of hazardous substances
2.6 Safety awareness
In addition to the safety information contained in this manual and the intended use,
the following safety regulations shall be complied with:
▪Accident prevention, health regulations and safety regulations
▪Explosion protection regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards, directives and laws
2.7 Safety information for the user/operator
▪Fit protective equipment (e.g. contact guards) supplied by the operator for hot,
cold or moving parts, and check that the equipment functions properly.
▪Do not remove any protective equipment (e.g. contact guards) during operation.
▪Provide the personnel with protective equipment and make sure it is used.
▪Eliminate all electrical hazards. (In this respect refer to the applicable national
safety regulations and/or regulations issued by the local energy supply
companies.)

2 Safety
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2.8 Safety information for maintenance, inspection and installation
▪Modifications or alterations of the actuator are only permitted with the
manufacturer's prior consent.
▪Use only original spare parts or parts/components authorised by the
manufacturer. The use of other parts/components can invalidate any liability of
the manufacturer for resulting damage.
▪The operator ensures that maintenance, inspection and installation is performed
by authorised, qualified specialist personnel who are thoroughly familiar with
the manual.
▪Any work on the product shall only be performed when it has been disconnected
from the power supply (de-energised).
▪Carry out work on the product during standstill only.
▪As soon as the work has been completed, re-install and re-activate any safety-
relevant devices and protective devices. Before returning the product to service,
observe all instructions on commissioning. (ðSection6.2,Page23)
2.9 Unauthorised modes of operation
Never operate the product outside the limits stated in the data sheet and in this
manual.
The warranty relating to the operating reliability and safety of the product supplied
is only valid if the product is used in accordance with its intended use.

3 Transport/Temporary Storage/Disposal
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EA-C
3 Transport/Temporary Storage/Disposal
3.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
3.2 Transport
CAUTION
Impacts against the coupling when placing in a horizontal or vertical position
Damage to the coupling!
▷Place a suitable support underneath the coupling half when placing it in a
horizontal or vertical position.
Transport the actuator carefully and in its original packaging. Avoid damaging the
coating.
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken:
Table3: Ambient conditions for storage
Ambient condition Value
Storage temperature -20°C to +80°C
Humidity 5 % to 95 % rH
▪Well-ventilated
▪Dry
▪Dust-free
▪Shock-free
▪Vibration-free
3.4 Disposal/recycling
Due to some components, the product is classified as special waste.
1. Dismantle the product.
2. Separate and sort the materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with local regulations or in another
controlled manner. PCBs, power electronics, capacitors and electronic
components are all hazardous waste.

4 Description
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4 Description
4.1 General description
▪Actuator for the automation of a control valve
Actuator with continuous-action or 3-point actuation in 24VAC/DC, 230VAC and
400VAC 3~. Actuator for valve type series BOA-CVE H and BOA-H Mat E.
Versions
Continuous-action actuators in 24VAC/DC, 230VAC and 400VAC 3~ versions and a
24VAC 3-point version
Variable speed actuator
control
▪24VDC motor, controlled by pulse-width modulation (PWM)
▪Absolute-coded feedback via precision potentiometer
▪Positioning function
▪Active feedback function
▪Automatic commissioning
▪Comprehensive diagnosis options
Parameterisation by
software
▪Actuator functions can be adapted to a wide variety of process conditions by
means of current and voltage monitoring.
▪Setting of valve-specific details
▪Setting of actuating force and actuating moment
▪Setting of stroke and actuating speed
▪Configuration of messages
▪Freely programmable characteristic curve corrections
3-point actuators in 230VAC and 400V AC 3~ versions
▪The actuator can be set by limit switches in both opening and closing direction
▪Torque transmission by disc spring stack in closing direction.
▪2 limit switches for visualising the limit positions included as standard
4.2 Designation
Example: EA-C 250
Table4: Designation key
Code Description
EA-C Product name
250 Actuator size and maximum actuating force of 25kN
4.3 Name plate
EA-C Antrieb
Auftrag / Pos.:
order No. / pos.: 2120000000 / 0000
Stellkraft:
act. force: ....... N
Istwert:
feedback: .......
Sollwert:
set value: ....... Antrieb:
actuator: EA- C ....
IP..
Betriebsspannung:
power supply: ....... V Antriebsnummer:
actuator no.: ............
1 2 3
4 5 6 7 8 9 10
Fig.1: Actuator name plate (example)
1 Order number 2 Order item number
3 Product name 4 Supply voltage

4 Description
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EA-C
5 Actuating force 6 Actual value
7 Setpoint 8 Actuator number
9 Actuator size 10 Enclosure
4.4 Design details
Operating modes
▪IEC 34-1, 8: S2 for short-time duty
▪IEC 34-1, 8: S4 for control duty
Actuating force
2kN to 25kN
Actuating speed1)
▪Continuous-action actuation: 0.2mm/s to 1.3mm/s
▪3-point actuation: 0.45mm/s to 1.4mm/s
Enclosure
▪EA-C 20: IP65 to EN 60529
▪EA-C 40: IP65 to EN 60529
▪EA-C 80: IP65 to EN 60529
▪EA-C 140: IP67 to EN 60529
▪EA-C 200: IP65 to EN 60529
▪EA-C 250: IP65 to EN 60529
Design
Handwheel on top (EA-C 20 to 140) Side-mounted handwheel (EA-C 200 to
250)
▪Configurable, microprocessor-controlled actuators
– Supply voltage: 24VAC/DC, 230VAC, 400VAC 3~
– Position setpoint: 4-20 mA, 0/2-10V
– Actual-position feedback: 4-20 mA, 0/2-10V
– Limit switching is torque-dependent in closing direction and stroke-
dependent in opening direction.
▪3-point actuators
– Supply voltage: 230VAC, 400VAC 3~
1) Depending on the actuator type

4 Description
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– Actual-position feedback: 2 limit switches
– Stopping via limit switches in closing and opening direction
▪Actuating time between 23 and 150seconds, depending on the stroke
▪Operating data stored in permanent memory
▪After a power failure, operation is resumed in accordance with the operating
data.
Variants
▪Actuator configured to match the order specification
▪Integrated process controller
▪Power back-up unit
▪Heating of the motor space
▪Local control unit
▪Additional limit switch for continuous-action actuators
▪Optional potentiometer for 3-point actuators
▪PSPT2) for 3-point actuators
4.5 Installation types
The installation position as shown in the drawing below must be adhered to.
Fig.2: Types of installation for EA-C actuator
4.6 Noise characteristics
The sound pressure level depends on the local conditions and the duty point. It is
≤70dB(A).
4.7 Dimensions and weights
For dimensions and weights please refer to the type series booklet.
2) Optional potentiometer with printed circuit board for converting the resistance into a 4-20 mA output current signal
(additional 24V DC power supply required)

5 Reassembly
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EA-C
5 Reassembly
5.1 Safety regulations
DANGER
Electrical connection work by unqualified personnel
Risk of fatal injury due to electric shock!
▷Always have any work on the connection to the power supply performed by a
trained electrician.
WARNING
Improper handling of an electric actuator
Crushing of fingers!
Damage to the actuator or the valve!
▷When mounting the actuator onto the valve make sure that the power supply
has not yet been connected or that the actuator is secured against
unintentional start-up.
▷Ensure that any objects and parts of the body are removed from the actuator
coupling area prior to starting the actuator.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷Observe the technical specifications of the local energy supply companies.
▷Inspect the power cable for visible damage.
▷Never connect damaged power cables.
CAUTION
Painting of pipes
Impairment of the valve's function and loss of information!
▷Protect stem and plastic components prior to applying paint.
▷Protect printed name plates prior to applying paint.
5.2 Checking prior to installation/assembly
▪Check the actuator's compatibility with the valve.
▪Check whether the valve has been prepared for assembly to the actuator.
▪Check whether the actuator cover needs to be dismantled.
– The actuator cover on EA-C actuator sizes 200 to 250 and EA-C 3-point
actuators needs to be dismantled. (ðSection5.4,Page16)
▪Make sure that there is a minimum wall clearance for removing the actuator
cover.

5 Reassembly
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A
X
X
X
Ø 180 Ø 180 Ø 250
A
A
50
52
EA-C 20, 40, 80 EA-C 140 EA-C 200, 250
Fig.3: Actuator with minimum wall clearance X
Table5: Dimensions [mm]
Actuator A Minimum wall clearance X
EA-C 20 478,2 100
EA-C 40 481 100
EA-C 80 510,3 100
EA-C 140 579 120
EA-C200 720 230
EA-C250 720 230
5.3 Mounting the actuator
WARNING
Electrical operation of the actuator
Crushing of hands!
▷Use only the handwheel to operate the actuator during assembly/dismantling.

5 Reassembly
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EA-C
a
b
c
d
e
f
g
h
i
EA-C 20 - 140 EA-C 200 - 250
Fig.4: Mounting of EA-C actuator sizes 20 to 250
a Coupling
b Coupling nut
c Tensioning screw
d Screwed insert
e Pillar
f Stem
g Locknut
h Top flange3)
i Pillar nut
üThe handwheel4) has been used to move the coupling (a) into its top starting
position.
1. Check that the coupling nut (b) can be turned by hand. If it cannot be rotated,
loosen either the 4 tensioning screws (c) or the screwed insert (d), depending on
the design.
CAUTION
Tensioning screws or screwed insert too loose
Internal coupling parts may fall out!
▷Reinsert the internal coupling parts in accordance with the disc spring
arrangement diagram.
2. Insert the actuator pillars (e) in the drilled holes provided in the top flange3) (h).
3. Screw the pillar nuts (i) onto the threads of the pillars (e). Make sure to keep a
distance of approx. 5mm from the top flange3) (h).
4. Turn the handwheel to extend the coupling (a) until the coupling nut (b) rests
on the stem (f).
5. Keep on turning until the gap between the pillar shoulders and the top flange3)
(h) is approx. 5mm.
3) Control valve flange for mounting the actuator
4) To turn the handwheel of EA-C 200 to 250 actuators, press the coupling button on the top of the actuator cover until it
latches in the down position.

5 Reassembly
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6. Use an open-ended wrench to screw the coupling nut (b) onto the stem (f) until
the pillar shoulders rest on the top flange3) (h).
7. Continue until the stem thread is screwed into the coupling nut (b).
ðThread engagement depth for M10: 12mm
ðThread engagement depth for M14: 16mm
8. Secure the coupling nut (b) with the locknut (g).
9. For EA-C 20 to 140 actuators, tighten the tensioning screws (c) crosswise to a
torque of 8Nm. On EA-C 200 to 250 actuators, tighten the screwed insert (d)
hand-tight as far as it will go using a pin-type face wrench.
10. Operate the coupling (a) with the handwheel until the pillar shoulders rest on
the top flange3) (h).
1
2
Fig.5: Illustration of correct screwed condition
1 Pillar shoulder 2 Top flange3)
11. Tighten the pillar nuts (i) to a torque of 56Nm.
EA-C 20 EA-C 40 EA-C 140 EA-C 200 - 250 EA-C 80
Fig.6: Disc spring arrangement diagrams of EA-C 20 to 250 actuators
5.4 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Danger of death from electric shock!
▷Always have the electrical connections installed by a trained and qualified
electrician.
▷Observe regulations IEC60364.
DANGER
Work performed on an energised terminal box
Danger of death from electric shock!
▷Switch off the power supply at least 5minutes prior to commencing work and
ensure that it cannot be switched on again unintentionally.

5 Reassembly
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EA-C
WARNING
Sudden start-up of the continuous-action actuator with power back-up unit after
disconnection from the mains.
Crushing of hands!
▷Disconnect the equipment from the power supply.
▷Secure against unauthorised start-up.
CAUTION
Pressing down the actuator cover with force
Damage to components!
▷Turn the actuator cover gently to and fro until you can feel it lock in position.
NOTE
The terminal box has terminals for connecting solid and flexible electrical cables
with cross-sections from 0.14mm2 to 2.5mm2 as well as a PE terminal on the
housing.
Depending on the actuator, the terminal box is located behind the terminal box
cover or under the actuator cover.
Terminal box behind the terminal box cover (on continuous-action actuators and
24V 3-point actuators)
Fig.7: Undo the screws.
1. Undo and store the terminal box screws.
2. Remove the terminal box cover.
3. Unscrew the cable gland.
4. Choose the supply voltage and control signals in accordance with the data on
the name plate.
5. Connect the cables for power supply and control to the terminals as shown in
the wiring diagram. (ðSection9.3,Page32)
ðUse separate power cables for this purpose.
Fig.8: Power cable and control cable
6. Mechanically secure the power cable and the control cable before the terminals
against loosening.
7. Fasten the cable gland.
8. Fasten the terminal box cover with the screws.
ðOnly tighten the screws until resistance can be felt.

5 Reassembly
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Terminal box under the actuator cover (handwheel on top - on 230V and 400V 3-
point actuators)
Fig.9: Loosen the protective
cap of EA-C 140
Fig.10: Undo the fastening
screw of EA-C 20
1. For EA-C 140 actuators, unscrew the protective cap.
2. Loosen and store the fastening screw of the handwheel.
3. Remove the handwheel.
4. For EA-C 140 actuators, loosen and store the hexagon socket head cap screws of
the actuator cover.
5. Use both hands to gently lift off the actuator cover.
6. Unscrew the cable gland.
7. Choose the supply voltage and control signals in accordance with the data on
the name plate.
8. Connect the cables for power supply and control to the terminals as shown in
the wiring diagram. (ðSection9.3,Page32)
ðUse separate power cables for this purpose.
Fig.11: Power cable and control cable
9. Mechanically secure the power cable and the control cable before the terminals
against loosening.
10. Tighten the cable gland up to one full turn.
11. A thin coat of grease may be applied to the joint ring to facilitate fitting of the
actuator cover.
12. Properly place the joint ring in the groove of the housing.
Fig.12: Markings on
actuator cover / housing
13. Slip the actuator cover over the handwheel shaft.
14. Observe the marking.
15. Do not press down the actuator cover by force. Turn the actuator cover gently
to and fro until you can feel it lock in position.
16. Slide the actuator cover over the joint ring as far as it will go. When properly
seated, the actuator cover cannot be turned any more, and its lower edge is
flush with the housing edge.
17. Mount the handwheel on the handwheel shaft until it has seated. Secure the
handwheel with the fastening screw onto the flattened area of the shaft.
18. Fasten the actuator cover with the screws.
19. For EA-C 140 actuators, tighten the protective cap.
20. Fasten the cable gland.
Terminal box under the actuator cover (side-mounted handwheel, on EA-C 200 and
250 actuators)
Fig.13: Open the actuator
cover.
1. Undo the hexagon socket head cap screws from the actuator cover and store
them.
2. Use both hands to gently lift off the actuator cover.
3. Unscrew the cable gland.
4. Choose the supply voltage and control signals in accordance with the data on
the name plate.
5. Connect the cables for power supply and control to the terminals as shown in
the wiring diagram. (ðSection9.3,Page32)
ðUse separate power cables for this purpose.

5 Reassembly
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EA-C
Fig.14: Power cable and control cable
6. Mechanically secure the power cable and the control cable before the terminals
against loosening.
Fig.15: Close the actuator
cover.
7. Fasten the cable gland.
8. A thin coat of grease may be applied to the joint ring to facilitate fitting of the
actuator cover.
9. Properly place the joint ring in the groove of the housing.
10. Observe the marking.
11. Do not press down the actuator cover by force.
12. Slide the actuator cover over the joint ring as far as it will go. When properly
seated, the actuator cover cannot be turned any more, and its lower edge is
flush with the housing edge.
13. Fit the actuator cover and fasten it with the hexagon socket head cap screws.
14. Fasten the cable gland.
5.5 Interfaces
Communication
interface
A
Fig.16: Communication interface
The communication interface A is factory-set. A parameterisation kit (ident. No.:
46001269) for actuator communication and parameter setting can be ordered from
KSB. The PC is connected to the actuator via a USB interface and an RJ45 socket using
the communication cable supplied. All actuator parameters can be set with the
software (included in the parameterisation kit). The operating manual is also
included in the scope of supply.
Inputs
123
Fig.17: Galvanically isolated setpoint input
The parameterisable setpoint for closed-loop control is supplied to terminals 1 to 3
via 4-20mA or 0/2-10V signals.

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15 16 17
Fig.18: Actual process value for process controller (optional)
Terminals 15 to 17 serve to connect the parameterisable actual process value via
4-20mA or 0/2-10V signals supplied by the process sensor, if the optional process
controller in the actuator is used.
NOTE
The binary inputs described below take priority over the setpoint supplied: If the
actuator parameters are set for closed-loop control, the actuator will not follow the
setpoint supplied as long as binary signals are received. Only after the signal has
been removed will the actuator return to the position stipulated by the setpoint.
9 10 11
Fig.19: Galvanically isolated binary inputs
The binary Open/Close signals are connected to terminals 9 to 11. These inputs are
rated for 24VAC/DC as standard. (ðSection9.3.3,Page34) The actuator is
operated in open-loop control mode in this configuration.
Outputs
456
Fig.20: Continuous actual-position feedback
Terminals 4 to 6 can be used for transmitting the parameterisable actual-position
value as a 4-20mA or 0/2-10V signal.
14 17
Fig.21: Power supply for process sensor (optional)