Page 1
Operating manual
Signal box with inductive limit value transmitters for
linear and rotary actuators
Series 827S.E/X
09.2019 / 1.0
Page 2
Original instructions
© ARCA Regler GmbH. All rights reserved.
Cover picture background: Freepik.com
Page 3
ARCA Regler GmbH Table of contents
Table of contents
1 General data........................................................................................................................... 5
1.1 Validity of the manual ..............................................................................................................5
1.2 Contact details......................................................................................................................... 5
1.3 Other applicable documents.................................................................................................... 5
1.4 Place of storage of the manual................................................................................................ 5
1.5 ARCA ONSITE ........................................................................................................................5
2 Safety...................................................................................................................................... 7
2.1 Introduction.............................................................................................................................. 7
2.2 General safety information ...................................................................................................... 7
2.3 Explanation of symbols and notices ........................................................................................7
2.4 Warning symbols on the device ..............................................................................................8
2.5 Intended use............................................................................................................................ 8
2.6 Improper modifications to the device....................................................................................... 9
2.7 Qualified Personnel .................................................................................................................9
2.8 Liability disclaimer ................................................................................................................... 9
2.9 Laws and regulations ..............................................................................................................9
2.10 Conformity to European directives ........................................................................................ 10
2.11 Use in potentially explosive areas .........................................................................................10
3 Transport, storage and packaging ....................................................................................12
3.1 Transport ...............................................................................................................................12
3.2 Storage..................................................................................................................................12
3.3 Packaging.............................................................................................................................. 12
4 Type plate............................................................................................................................. 13
5 Type key ...............................................................................................................................14
6 Description........................................................................................................................... 15
6.1 Function................................................................................................................................. 15
6.2 Construction .......................................................................................................................... 15
6.3 Device Components ..............................................................................................................16
6.3.1 Electrical Connections...........................................................................................................17
7 Assembly .............................................................................................................................18
7.1 Safety instructions for assembly............................................................................................ 18
7.2 Mounting a linear actuator.....................................................................................................18
7.2.1 Mounting with mounting kit for "Integrated Fitting Linear Actuator"....................................... 18
7.2.2 Mounting with mounting kit "Linear actuator IEC 60534" ...................................................... 20
7.3 Mounting with mounting kit "Rotary actuator VDI/VDE 3845" ............................................... 23
7.4 Use of the signal box in a humid environment ......................................................................26
8 Electrical connection .......................................................................................................... 28
8.1 Electrical connection standard ..............................................................................................30
8.2 Electrical connection ignition protection class Ex ia IIC ........................................................31
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Table of contents ARCA Regler GmbH
8.3 Electrical connection, 3-wire, direct switching ....................................................................... 32
9 Commissioning ...................................................................................................................34
9.1 Commissioning......................................................................................................................34
10 Service and maintenance ................................................................................................... 36
11 Technical Data .....................................................................................................................38
12 Disposal and recycling ....................................................................................................... 40
4 / 42 Series 827S.E/X09.2019 / 1.0
Page 5
ARCA Regler GmbH 1 General data
1 General data
This operating manual contains instructions that enable the product to
be safely and properly installed, put into operation and maintained.
The target group for this operating manual is exclusively specially
trained and authorised technical personnel.
Please contact the manufacturer if you encounter problems that cannot
be solved with the aid of this operating manual.
The product is subject to technical changes at any time.
1.1 Validity of the manual
This operating manual applies to the product in the version described in
the device pass.
1.2 Contact details
Further information about the product can be obtained from:
Manufacturer's address
ARCA Regler GmbH
Kempener Str. 18
D-47918 Tönisvorst
Tel.: +49 (0) 2156-7709-0
Fax: +49 (0) 2156-7709-55
E-mail: [email protected]
www.arca-valve.com
1.3 Other applicable documents
The product can be delivered as part of an actuator and equipped with
additional components that are described in their own operating manuals. The instructions as well as the warning and safety information contained therein must also be observed.
Furthermore, the following documents apply in addition to this operating
manual.
▪ Device pass
▪ Installation drawing
1.4 Place of storage of the manual
The operating manual and all other applicable documents are part of the
product.They must be kept in the immediate vicinity of the product and
must be accessible to the personnel at all times.
1.5 ARCA ONSITE
If the product was supplied as part of a complete control valve, the operating documentation can be downloaded from our ARCA ONSITE portal
with the help of the control valve's serial number.
Two options are available here:
1. Scan the QR code¹, which can be found on the control valve. Further
entries are not required.
Series 827S.E/X 5 / 4209.2019 / 1.0
Page 6
1 General data ARCA Regler GmbH
2. Visit the website https://onsite.arca-valve.com/search and enter
the ARCA order no. and ARCA serial no. of the control valve. The order no. and serial no. of the control valve can be found on the device
pass and on our order confirmation.
Entry example
Illustration1: ARCA ONSITE
¹ QR Code is a registered trademark of DENSO WAVE INCORPORATED
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ARCA Regler GmbH 2 Safety
2 Safety
2.1 Introduction
This manual contains all the information you need for the connection and
commissioning of the device.
It is addressed to people who mechanically mount, electrically connect,
parameterise and commission the device, as well as service and maintenance technicians.
This manual applies to devices in both non-intrinsically and intrinsically
safe versions.
We expressly state that the contents of this operating manual do not
form part of or modify a former or existing agreement, assurance or legal
relationship. All obligations are specified in the particular purchase contract which also contains all the applicable warranty regulations. These
contractual warranty conditions are neither extended nor restricted by
any statements in this document.
The contents reflect the technical state at the time of printing.
We reserve the right to make technical changes in the course of further
development.
WARNING
Use of a damaged or incomplete device
Risk of explosion!
► Do not use damaged or incomplete devices.
2.2 General safety information
Requirement for safe use
This equipment has been supplied from the factory in a totally safe condition. To maintain this condition and to ensure safe operation of the
device, follow these instructions and observe all safety-relevant information.
Pay attention to the notices and symbols on the device. Do not remove
any notices or symbols from the device. Keep the notices and symbols
in a fully legible condition at all times.
2.3 Explanation of symbols and notices
This documentation contains notes that you must observe for your own
personal safety and for the avoidance of damage to property. Notes concerning personal safety are highlighted by a warning triangle; notes concerning only damage to property are not marked by a warning triangle.
Depending on the danger level, the warning notes are shown in decreasing order of severity as follows:
DANGER
means that death or serious injuries will occur if the corresponding
preventive measures are not taken.
Series 827S.E/X 7 / 4209.2019 / 1.0
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2 Safety ARCA Regler GmbH
WARNING
means that death or serious injuries can occur if the corresponding
preventive measures are not taken.
CAUTION
with a warning triangle means that slight injury and/or damage to
property can occur if the corresponding preventive measures are
not taken.
NOTICE
indicates an important item of information about the product itself
or how the product should be handled, to which special attention
should be paid.
CAUTION
without a warning triangle means that damage to property can occur if
the corresponding preventive measures are not taken.
ATTENTION
indicates that an undesirable event or condition can occur if the corresponding instructions are not observed.
If several danger levels occur, the warning note for the respectively
highest level will always be used. If a warning note with a warning triangle warns against personal injury, a warning against damage to property may be included in the same warning note.
2.4 Warning symbols on the device
Symbol Explanation of the warning symbols on the device
Observe the operating manual
Protect the device against shocks (otherwise the protection
class is not guaranteed)
2.5 Intended use
Observe the following:
WARNING
ARCA signal boxes may be used only for the applications foreseen
in the associated technical documentation. Proper transport, storage, erection, assembly, installation, commissioning, operation and
maintenance are required for trouble-free and safe operation. The
permissible environmental conditions must be maintained. Notices
in the associated documentation must be observed.
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ARCA Regler GmbH 2 Safety
2.6 Improper modifications to the device
WARNING
Modification to the device
Modifications and repairs to the device, in particular in potentially explosive areas, can be dangerous for personnel, the plant and the environment!
► Modify or repair the device only as described in the instructions for
the device. The manufacturer's warranty and the product approvals
are rendered null and void if this is ignored.
2.7 Qualified Personnel
The device may be set up and operated only in conjunction with this
documentation. Startup and operation may be performed only by quali-
fied personnel. Qualified personnel within the meaning of the safety instructions in this documentation are persons who are authorised to commission, earth and mark devices, systems and circuits according to the
safety standards.
Qualified persons are those who are familiar with the erection, assembly,
startup and operation of the product. These persons possess the following qualifications:
▪ They are authorised and have been trained or instructed to operate
and maintain devices and systems in accordance with the safety
standards for electrical circuits, high pressures and aggressive and/
or hazardous media.
▪ In the case of devices with explosion protection: they are authorised
and have been trained or instructed to carry out work on electrical
circuits for plants that are at risk from explosions.
▪ They have been trained or instructed in the care and use of appropri-
ate safety equipment in accordance with safety standards.
2.8 Liability disclaimer
We have checked the contents of this manual for correspondence to the
hardware and software described. Nevertheless, deviations cannot be
ruled out; therefore we cannot give any guarantee for full correspondence. The details are checked regularly and any necessary corrections
will be included in subsequent editions.
2.9 Laws and regulations
The test certificates, regulations and laws applicable to your country
must be observed for the connection, assembly and operation.
These are, for example:
▪ IEC 60079-14 (international)
▪ EN 60079-14 (EC)
▪ Operational safety ordinance
Series 827S.E/X 9 / 4209.2019 / 1.0
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2 Safety ARCA Regler GmbH
2.10 Conformity to European directives
The CE mark on the device indicates its conformity to the following
European directives:
2014/30/EU
EMC
2014/34/EU
ATEX
2014/35/EU
LVD
The applied standards can be found in the EU Declaration of Conformity
for the device.
Directive of the European Parliament and of the
Council on the harmonisation of the Laws of the
Member States relating to electromagnetic compatibility.
Directive of the European Parliament and of the
Council on the harmonisation of the Laws of the
Member States relating to equipment and protection systems intended for use in potentially explosive atmospheres.
Directive of the European Parliament and of the
Council on the harmonisation of the Laws of the
Member States relating to the making available of
electrical equipment designed for the use within
certain voltage limits.
2.11 Use in potentially explosive areas
WARNING
Unsuitable device for potentially explosive areas
Risk of explosion!
► Use only devices that are approved for use in Ex-zones and are
marked accordingly.
► Make sure that the device is suitable for the area of use.
WARNING
Loss of safety of the device in the ignition protection class Intrinsic
Safety "Ex i"
If the device has already been operated on non-intrinsically safe circuits
or with a higher operating voltage, the safety of the device for use in potentially explosive areas is no longer guaranteed. There is a danger of
explosion!
► Connect the device in the ignition protection class Intrinsic Safety ex-
clusively to an intrinsically safe electrical circuit.
► Observe the electrical data in the certificate.
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ARCA Regler GmbH 2 Safety
WARNING
Impermissible accessories and impermissible spare parts
Danger of explosion in potentially explosive areas or damage to the
device!
► Use exclusively original accessories and original spare parts.
► Observe all relevant installation and safety instructions described in
the manuals for the device, accessories and spare parts.
WARNING
Open cable entry or incorrect cable gland
Danger of explosion in potentially explosive areas or damage to the
device!
► Seal the cable entries for the electrical connections. Use exclusively
cable glands or blanking plugs for this that are approved for the respective ignition protection class.
WARNING
Exceeding the maximum ambient or media temperature
Risk of explosion in potentially explosive areas
The temperature class of the device is no longer valid if the maximum
permissible ambient or media temperature is exceeded!
► Make sure that the maximum permissible ambient or media temper-
ature of the device is not exceeded.
WARNING
Electrostatic charging of nameplates
The nameplates used on the device can reach a charging capacity of 5
pF.
► Keep the device and the cables at a distance from strong electro-
magnetic fields.
CAUTION
Electrostatically endangered assemblies
The device contains electrostatically endangered assemblies. Electrostatically endangered assemblies can be destroyed by voltages far below the threshold of human perception. These voltages already occur if
you touch a component or electrical connection without having electrostatically discharged yourself first. The damage caused to an assembly
due to overvoltage is not usually immediately apparent and only becomes noticeable after a lengthy period of operation.
► Therefore, prevent electrostatic charging.
Series 827S.E/X 11 / 4209.2019 / 1.0
Page 12
3 Transport, storage and packaging ARCA Regler GmbH
3 Transport, storage and packaging
3.1 Transport
Transport at a temperature lower than -40 °C or higher than +80 °C is
not permissible.
3.2 Storage
NOTICE
Improper storage!
There is a danger of the product no longer functioning if it is stored improperly.
► Storage at a temperature lower than -40 °C or higher than +80 °C is
not permissible.
► It must be stored in roofed-over storage places and that are weather-
proof.
Openings are sealed with suitable means to prevent the ingress of dirt.
These should be removed by technical personnel at the place of installation.
CAUTION
Inadequate protection during storage
The packaging offers only limited protection against moisture and infiltration!
► Provide additional packaging if necessary.
3.3 Packaging
The product is packed in a PE film inside the outer packaging (cardboard box, wooden crate, pallet, lattice box).
If the packaging, in particular the PE film, has been opened, the product
must be stored immediately in a heated room.
The product must be packed in weatherproof or seaworthy packaging for
transport by ship, rail or truck.
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ARCA Regler GmbH 4 Type plate
1 2 3
4 5 7 6
8
9
10
4 Type plate
Illustration2: 827S nameplate
1 Manufacturer
2 Device name
3 Type
4 Observe the operating manual
5 Protection class
6 Approval
7 ATEX marking for potentially explosive areas
8 Internal capacitance
9 Internal inductance
10 Fabrication number
Series 827S.E/X 13 / 4209.2019 / 1.0
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5 Type key ARCA Regler GmbH
5 Type key
827S. X 2 1
[1] [2] [3] [4]
1. Series
827S.
Example of type designation
2. Explosion protection
1)
E not explosion proof
X explosion protected "ia"
1)
3. Number of slot-type initiators
1 1 slot-type initiator
2 2 slot-type initiators
3 3 slot-type initiators
2)
4. Types of slot-type initiators
1 SC 3.5…NO…-BU
2 SJ 3.5-SN
3 SB 3.5-E2
1
) ATEX approval, other approvals on enquiry
2
) only in explosion protection class "E": not explosion proof
2)
827S.X21
Signal box 827S – explosion-proof "ia" – 2 slot-type initiators – initiators
type SC 3.5…NO…-BU
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ARCA Regler GmbH 6 Description
6 Description
6.1 Function
▪ The signal box 827S is used for the feedback of up to 3 freely ad-
justable valve positions (positions of the actuator) to the control system. The stroke or rotary movement of the actuator is transmitted to
a shaft by the stroke or rotary angle sensor. This rotary movement is
transmitted directly to an immersion disc. The movement of the immersion disc into or out of the respective slot-type initiator generates
the corresponding electrical signal.
▪ The slot-type initiators can be arranged in arbitrary positions around
this immersion disc and adjusted so that almost any desired switching position is representable for the slot-type initiator.
6.2 Construction
This section describes the mechanical and electrical construction, the
device components and the principles of the operation of the signal box.
The signal box is used to signal the positions (usually the end positions)
of:
▪ linear actuators or
▪ rotary actuators VDI/VDE 3845
Linear actuators may be mounted in a number of ways.
▪ NAMUR or IEC 60534
▪ integrated mounting (ARCA, SAMSON)
The signal box can be mounted and operated on all normal actuators.
The device is available for single-acting and double-acting actuators as
well as for potentially explosive and non-potentially explosive applications.
Series 827S.E/X 15 / 4209.2019 / 1.0
Page 16
6 Description ARCA Regler GmbH
6.3 Device Components
Illustration3: Construction
10 Cable gland
20 Terminal set
30 Proximity switch
40 Screw
50 Washer
60 Screw
70 Washer
80 Switching disc
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ARCA Regler GmbH 6 Description
90 Circlip
100 Washer
110 Spring washer
120 Spacer sleeve
130 Base plate
6.3.1 Electrical Connections
The signal box's connecting terminals are located on the left-hand side.
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7 Assembly ARCA Regler GmbH
7 Assembly
7.1 Safety instructions for assembly
CAUTION
Improper installation
Improper installation can result in damage to the device, its destruction
or the impairment of its function.
Ascertain that the device shows no visible signs of damage each time
before installing it.
Ascertain that the process connections are clean and that suitable seals
and cable glands are used.
Install the device using suitable tools.
ATTENTION
The device protection class becoming null and void
Damage to the device due to open or improperly closed housing. The
protection class specified on the nameplate is no longer guaranteed.
CAUTION
Humid environment
If the environment is humid, mount the signal box in such a way that
there is no chance of the shaft freezing at low ambient temperatures.
Make sure that water does not enter an open housing or screw connection. If the signal box cannot be immediately and permanently mounted
and connected on site, it is possible for water to enter.
7.2 Mounting a linear actuator
7.2.1 Mounting with mounting kit for "Integrated Fitting Linear Actuator"
Included with the "integrated fitting linear actuator" are (see figures below for serial numbers):
Serial
no.
1 1 Driver pin cpl. with roller mounted on lever (2)
2 1 Lever
3 1 Washer B6.4 - DIN 125 - A2
4 1 Spring lock washer A6 – DIN 127- A2
5 1 Cylinder screw M6 x 25 - DIN 7984 -
6 1 Hex nut M6 - DIN 6923 – A2
7 1 Square nut M6 - DIN 557 - A4
8 2 Cylinder screw M8 x 65 - DIN 912 - A2
9 2 Spring lock washer A8 - DIN 127 - A2
No. of
items
Name Note
A2
Mounting procedure (see
figures below)
1. Fig. 5: Adjust the pin (1) on the previously assembled lever (2) to the
value of the stroke range given on the actuator or, if this is not available as a scale value, to the next larger scale value. In case of un-
18 / 42 Series 827S.E/X09.2019 / 1.0
Page 19
ARCA Regler GmbH 7 Assembly
5
4
3
7
1
6
2
certainty with regard to the actual working stroke (pneumatic actuators often have a setting distance reserve), the next larger scale value
should be selected. The centre of the pin should rest on the scale
line on the lever (2).
2. Fig. 6: Push the lever (2) to the stop on the signal box shaft and fix it
with cylinder screw (5).
3. Hold the signal box against the actuator in such a way that the roller
passes between the pins (16).
4. Align the signal box horizontally on the yoke and assemble it with the
screws (8) and spring lock washers (9).
Assembly procedure plan integrated fitting
Illustration4: Lever mounted
Series 827S.E/X 19 / 4209.2019 / 1.0
Illustration5: Mounting the lever on the signal box
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7 Assembly ARCA Regler GmbH
16
9
8
Illustration6: Mounting the signal box on the actuator
7.2.2 Mounting with mounting kit "Linear actuator IEC 60534"
Included with the mounting kit "Linear actuator IEC 60534", stroke 3 to
35 mm, are (see figures below for serial numbers):
Mounting procedure (see
figures below)
Serial
no.
1 1 Driver pin cpl. with
No. of
items
Name Note
mounted on lever (2)
roller
2 1 NAMUR lever For stroke range 3 mm to 35 mm,
or (order separately for stroke
range > 35 mm to 130 mm, see
Fig. 10)
3 2 Washer B 6.4 - DIN 125 - A2
4 3 Spring lock washer A6 - DIN 127 - A2
5 3 Cylinder screw M6 x 25 - DIN 7984 - A2
6 1 Hex nut M6 - DIN 6923 - A2
7 1 Square nut M6 - DIN 557 - A4
9 6 Spring lock washer A8 - DIN 127 - A2
17 1 NAMUR mounting
bracket IEC 534
Standardised connecting location
for mounting bracket with rib,
column or flat surface
18 1 Sensing hoop Guides the roller with the driver
pin and turns the lever arm
19 2 Clamping piece Assembly of the sensing hoop to
the actuator's stem
20 2 U-bolts Only for actuators with columns
21 2 Hex screw M8 x 16 - DIN 933–A2
22 6 Washer B 8.4 - DIN 125 - A2
23 4 Hex screw M8 x 20 - DIN 933–A2
24 4 Hex nut M8 - DIN 934 - A4
1. Fig. 9: Assemble the clamping pieces (19) using the cylinder screws
(5) and spring lock washers (4) to the actuator stem.
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ARCA Regler GmbH 7 Assembly
1
2
2. Push the sensing hoop (18) into the cut-outs in the clamping pieces
(19). Adjust to the required length, and tightened the screws (5) so
that it is still just possible to push the sensing hoop.
3. Fig. 10: Adjust the pin (1) on the previously assembled lever (2) to
the value of the stroke range given on the actuator or, if this is not
available as a scale value, to the next larger scale value. In case of
uncertainty with regard to the actual working stroke (pneumatic actuators often have a setting distance reserve), the next larger scale
value should be selected. The centre of the pin should rest on the
scale line on the lever (2).
4. Push the lever (2) to the stop on the signal box shaft and fix it with
the cylinder screw (5).
5. Fig. 11: Mount the mounting bracket (17) to the rear of the positioner
with two hex screws (21), spring lock washer (9) and washers (22).
The choice of the row of holes depends on the width of the actuator's
lantern width. The roller should engage in the sensing hoop (18) as
close to the stem as possible, but must not touch the clamping
pieces (19).
6. Fig. 12: Hold the signal box with the fixing angle to the actuator in
such a way that the pin (1) passes inside the sensing hoop (18).
7. Tighten the sensing hoop (18).
8. Prepare the assembly parts in accordance with the actuator type:
– Actuator with a rib: hex screw (23), washer (22) and spring lock
washer (9).
– Actuator with a flat surface: four hex screws (23) with washer (22)
and spring lock washer (9).
– Actuator with columns: two U-bolts (20), four hex nuts (24) with
washer (22) and spring lock washer (9).
9. Attach the signal box with the previously prepared assembly parts to
the yoke. Adjust the height of the signal box so that the horizontal position of the lever is achieved as close as possible to the centre of
the stroke. The actuator's lever scale provides orientation here. It is
essential that the horizontal lever position is passed through within
the stroke range.
Illustration7: NAMUR lever 3 mm to 35 mm (1), NAMUR lever > 35 mm to 130 mm (2)
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7 Assembly ARCA Regler GmbH
18
4
19
5
5
4
3
7
1
6
2
17
21
9
22
Assembly procedure - linear
actuator IEC
Illustration8: Mounting the feedback lever on the actuator stem
Illustration9: Lever mounted
Illustration10: Assembly with mounting bracket
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ARCA Regler GmbH 7 Assembly
22
17
23
9
22
23
9
22
24
9
20
Illustration11: Fastening to different types of yoke
7.3 Mounting with mounting kit "Rotary actuator VDI/VDE 3845"
Included with the mounting kit "Rotary actuator VDI/VDE 3845", are (see
figures below for serial numbers):
Serial
no.
No. of
items
Name Note
3 1 Washer B6.4 - DIN125 - A2
25 1 Coupling wheel Mounting on the axle of the positioner
26 1 Driver Fitted to the actuator's shaft stub
27 1 Labels Display of the actuator position, con-
sisting of scale and pointer
8 Scale Various divisions
1 Pointer Reference point for scale
28 4 Hex screw M6 x 12 - DIN933 - A2
29 4 Lock washer S6
30 1 Cylinder screw M6 x 12 - DIN84 - A2
31 1 Mounting
bracket VDI/
VDE3845
32 1 Square nut M4 - DIN562 -A2
33 1 Hexagon
M4 x 10 - DIN916 - A2
socket screw
34 1 Allen key for item 33
Mounting procedure (see
figures below)
1. Fig. 13: Attach the VDI/VDE 3845 mounting bracket (31), actuatorspecific, supplied by actuator manufacturer, on the rear of the signal
box, and fix it in place with the hex screws (28) and lock washers
(29).
2. Insert square nut (32) into the coupling wheel (25), screw the
hexagon socket screw (33) into the square nut (32).
3. Fig. 14: Push the coupling wheel (25) as far as it will go on the signal
Series 827S.E/X 23 / 4209.2019 / 1.0
box shaft, pull it back about 1 mm and tighten the hexagon socket
screw (33) with the supplied Allen key (34).
4. Fig. 15: Place the driver (26) on the actuator's shaft stub and tighten
it with cylinder screw (30) and washer (3).
Page 24
7 Assembly ARCA Regler GmbH
29
28
31
33
25
32
5. Fig. 16: Carefully place the signal box with the mounting bracket on
the actuator. One of the two pins (35) of the coupling wheel (25)
must engage in the driver (26).
6. Fig. 17: Align the signal box / mounting bracket centrally on the actuator and screw tight (screws are not included with the supply, but are
part of the actuator's mounting bracket).
Assembly procedure for VDI/
VDE 3845 rotary actuator
Illustration12: Mounting bracket
Illustration13: Coupling wheel
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ARCA Regler GmbH 7 Assembly
26
30 3
25
26
25
35
35
26
Illustration14: Mounting the driver on the actuator
Illustration15: Alignment of mounting bracket
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7 Assembly ARCA Regler GmbH
25
Illustration16: Positioner with mounting bracket fitted on rotary actuator
1 Positioner
fixing plane
2 Rotary actuator
Illustration17: Mounting bracket (supplied by the actuator manufacturer) and dimensions
7.4 Use of the signal box in a humid environment
CAUTION
Never clean the signal box with a high pressure cleaner. Protection
class IP66 is inadequate for this.
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ARCA Regler GmbH 7 Assembly
This information provides you with important notes on mounting and operating the signal box in wet environments (frequent heavy rain and/or
persistent tropical condensation) in which protection class IP66 is no
longer sufficient, in particular when there is a risk that the water might
freeze.
Avoid unfavourable mounting positions:
▪ in order to prevent the penetration of fluids into the device, e.g.
through the cable gland, during normal operation.
Illustration18: Favourable and unfavourable mounting positions
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Page 28
8 Electrical connection ARCA Regler GmbH
8 Electrical connection
Basic safety instructions
WARNING
Inappropriate power supply
Risk of explosion in potentially explosive areas in case of inappropriate
power supply, e.g. if alternating current is used instead of direct current.
► Connect the device in accordance with the prescribed supply and
signal circuits. The applicable regulations can be found in the certificates or on the nameplate.
WARNING
Unsafe low-voltage power supply
Risk of explosion in potentially explosive areas due to voltage flashover.
► Connect the device to a low-voltage power supply with safe isolation.
WARNING
Connection of the device when live
Risk of explosion in potentially explosive areas
► Connect the device in potentially explosive areas only when switched
off.
ð Exceptions: energy-restricted circuits may be connected in po-
tentially explosive areas even when live.
WARNING
Missing potential equalisation
If there is no potential equalisation, there is a risk of explosion in potentially explosive areas due to equalising current or ignition sparks.
► Make sure that potential equalisation is available for the device.
ð Exceptions: in the case of devices with the ignition protection
class Intrinsic Safety "Ex i" it may be possible to dispense with
potential equalisation.
WARNING
Unprotected wire ends
Risk of explosion in potentially explosive areas due to unprotected wire
ends.
► Protect unused wire ends according to IEC/EN 60079-14.
28 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 8 Electrical connection
WARNING
Improper routing of shielded cables
Risk of explosion due to equalisation currents between the potentially
explosive area and areas that are not potentially explosive.
► Earth shielded cables leading into the potentially explosive area at
one end only.
► In case of earthing at both ends, lay a potential equalisation con-
ductor.
WARNING
Unsuitable cables and/or cable glands
Risk of explosion in potentially explosive areas and if cables and/or
cable glands are connected that do not match each other or do not meet
the technical requirements.
► Use only cables and cable glands that meet the specified require-
ments.
► Tighten the cable glands according to the specified torques.
► When replacing cable glands, use only cable glands of the same
type.
► Check for firm seat tightness of the cables after installation.
CAUTION
Formation of condensation in the device
Damage to the device due to the formation of condensation when the
temperature difference between transport or storage and the place of installation is more than 20 °C.
▪ Leave the device to stand for a few hours in the new environment
before putting it into operation.
CAUTION
Excessively high ambient temperature
Damage to the cable insulation.
▪ If the ambient temperature is ≥ 60 °C, use heat-resistant cables de-
signed for an ambient temperature at least 20 °C higher.
Series 827S.E/X 29 / 4209.2019 / 1.0
Page 30
8 Electrical connection ARCA Regler GmbH
8.1 Electrical connection standard
Type 827S.E11 and 827S.E12
Illustration19: 827S_Terminal diagram_2-wire_1NO
Type 827S.E21 and 827S.E22
Illustration20: 827S_Terminal diagram_2-wire_2NO
30 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 8 Electrical connection
Type 827S.E31 and 827S.E32
Illustration21: 827S_Terminal diagram_2-wire_3NO
3 Switching amplifier Ex ia
5 limit value transmitter 2
EN 60947-5-6
4 limit value transmitter 1 6 limit value transmitter 3
8.2 Electrical connection ignition protection class Ex ia IIC
Type 827S.X11 and 827S.X12
Illustration22: 827S_Terminal diagram_2-wire_1NO_EX
Series 827S.E/X 31 / 4209.2019 / 1.0
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8 Electrical connection ARCA Regler GmbH
Type 827S.X21 and 827S.X22
Illustration23: 827S_Terminal diagram_2-wire_2NO_EX
1 Area of no explosive hazard 4 limit value transmitter 1
2 Potentially explosive
area
3 Switching amplifier Ex ia
EN 60947-5-6
5 limit value transmitter 2
8.3 Electrical connection, 3-wire, direct switching
Type 827S.E13
Illustration24: 827S_Terminal diagram_3-wire_1NO
32 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 8 Electrical connection
Type 827S.E23
Illustration25: 827S_Terminal diagram_3-wire_2NO
Type 827S.E33
Illustration26: 827S_Terminal diagram_3-wire_3NO
4 limit value transmitter 1
5 limit value transmitter 2
6 limit value transmitter 3
Series 827S.E/X 33 / 4209.2019 / 1.0
Page 34
9 Commissioning ARCA Regler GmbH
9 Commissioning
WARNING
Improper commissioning in potentially explosive areas
Failure of device or risk of explosion in potentially explosive areas
► Do not put the device into operation until it is completely assembled
and connected.
► Consider the effects on other devices in the plant before commis-
sioning.
WARNING
Loss of the explosion protection
Risk of explosion in potentially explosive areas due to open or improperly closed device.
WARNING
Opening the device when live
Risk of explosion in potentially explosive areas
► Open the device only when it is switched off.
► Before commissioning, check that the cover, the cover fastenings
and the cable glands have been fitted properly.
ð Exceptions: devices of the ignition protection class Intrinsic
Safety "Ex i" may also be opened in a potentially explosive area
when switched on.
ATTENTION
The device protection class becoming null and void
Damage to the device due to open or improperly closed housing. The
protection class specified on the nameplate is no longer guaranteed.
▪ Make sure that the device is securely closed.
9.1 Commissioning
▪ Mount the signal box with the appropriate mounting kit.
▪ The limit contacts are normally adjusted so that a signal is present in
each of the end positions (open/closed). Both vanes can be infinitely
rotated so that intermediate positions can also be signalled.
In addition, the third limit value transmitter (with 827S.E3* version)
can be used for signalling an intermediate position.
▪ To ensure reliable switching, the switching point should be set ap-
prox. 2% before the mechanical stop (open/closed). We recommend
the valve position "closed" for the limit value transmitter "A" and the
valve position "open" for the limit value transmitter "B", whose setting
is described below for a normally closed valve.
1. Loosen the screw (40) on the limit value transmitter "A"
2. Position the limit value transmitter "A" (30) in the centre of the slot
3. Tighten the screw (40) on the limit value transmitter "A"
34 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 9 Commissioning
4. Loosen the screw of the vane (60)
5. Coarse adjustment of the vane (80) with input signal 0% (valve position "closed")
6. Tighten the screw (60)
7. Apply a 100% input signal
8. Loosen the screw (40) on the limit value transmitter "B"
9. Coarse adjustment of the limit value transmitter "B" with input signal
100% (valve position "open"). It may be necessary to position the
screw (40) and the spacer sleeve (120) in a different threaded hole in
the base plate (130).
10. Tighten the screw (40) on the limit value transmitter "B"
11. Apply a 2% input signal
12. Loosen the screw (40) on the limit value transmitter "A"
13. Adjust vane "A" so that a signal is present at the limit value transmitter "A".
14. Tighten the screw (40) on the limit value transmitter "A"
15. Apply a 98% input signal
16. Loosen the screw (40) on the limit value transmitter "B"
17. Adjust the vane so that a signal is present at the limit value transmitter "B".
18. Tighten the screw (40) on the limit value transmitter "B"
19. If a third limit value transmitter (with version 827S.E3*) is present,
steps 8 – 10 and 15 – 18 are to be carried out analogously for the
desired switching position.
20. By opening and closing the actuator, ensure that each limit value
transmitter switches reliably in the desired position in both directions.
Series 827S.E/X 35 / 4209.2019 / 1.0
Page 36
10 Service and maintenance ARCA Regler GmbH
10 Service and maintenance
Basic safety instructions
WARNING
Impermissible repair of the device
Repairs may be carried out only by authorised personnel.
WARNING
Impermissible accessories and impermissible spare parts
Risk of explosion in potentially explosive areas or damage to the device.
► Use exclusively original accessories and original spare parts.
► Observe all relevant installation and safety instructions described in
the manuals for the device, accessories and spare parts.
WARNING
Improper connection following maintenance
Risk of explosion in potentially explosive areas or damage to the device
► Connect the device correctly following maintenance.
► Close the device after maintenance.
CAUTION
Penetration of moisture into the device
Damage to the device
▪ Make sure that no moisture gets into the device during cleaning and
maintenance work.
WARNING
Electrostatic charging
Risk of explosion in potentially explosive areas due to electrostatic charging, which can occur, for example, when cleaning housings with a dry
cloth.
► Prevent electrostatic charging in potentially explosive areas.
WARNING
Open housing
Risk of explosion in potentially explosive areas due to hot components
and/or charged capacitors in the interior of the device.
► Switch the device off before opening it in a potentially explosive area.
ð Exceptions: devices of the ignition protection class Intrinsic
Safety "Ex i" may also be opened in a potentially explosive area
when switched on.
36 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 10 Service and maintenance
WARNING
Dust deposits thicker than 5 mm
Risk of explosion in potentially explosive areas. The device can heat up
as a result of dust deposits.
► Remove dust deposits that are thicker than 5 mm.
Series 827S.E/X 37 / 4209.2019 / 1.0
Page 38
11 Technical Data ARCA Regler GmbH
11 Technical Data
Basic device
Signal box 827S. . . .
Angular range 60° for linear valves (10 - 120 mm) and 90° for rotary valves
Ambient temperat-
ure
Connections
Cable entry 1-off M20 x 1.5
Terminals Cage clamp max. 2.5 mm²
Protection class IP 66
Climate class ZQF according to DIN 40040
Weight 0.8 kg
Version 827S. * . 1
Normal version 2-wire technology according to DIN 19234 (NAMUR), for
Slot-type initiators Type SC 3.5 N0-BU (replacement for SJ 3.5 N)
Function NC, normally closed
Switching difference ≤1 %
Control circuit see downstream switching amplifier
EMC according to EN 60947-5-2 and DIN 19234
-40 to +80 °C
Inductive limit value transmitter
switching amplifiers to be connected downstream
Version 827S. * . 2
Safe design 2-wire technology according to DIN 19234 (NAMUR) for
customer-provided switching amplifier in safe design
Slot-type initiators Type SJ 3.5 SN
Function NC, normally closed
Switching difference ≤1 %
Control circuit see downstream switching amplifier
EMC according to EN 60947-5-2 and DIN 19234
Version 827S. E . 3
Direct-switching 3-wire technology, direct-switching
Type SB 3.5 E2
Function NO, normally open
Switching difference ≤1 %
Operating voltage 10 - 30 V DC
permissible load cur-
100 mA
rent
38 / 42 Series 827S.E/X09.2019 / 1.0
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ARCA Regler GmbH 11 Technical Data
Electrical data, explosion-proof version
Ignition protection
II 1 G Ex ia IICT6…T1 Ga
class
Intrinsic safety
for connection to electrical circuits with the
following maximum
values
Type 1 Type 2 Type 3 Type 4
Ui = 16 V Ui = 16 V Ui = 16 V Ui = 16 V
li = 25 mA li = 25 mA li = 52 mA li = 76 mA
Pi = 34 mW Pi = 64 mW Pi = 169 mW Pi = 242 mW
Internal capacitance
C
i
827S.X*1 827S.X*2
150 nF 30 nF
Cable length of 10 m is taken into account
Internal inductance Li827S.X*1 827S.X*2
150 µH 100 µH
Cable length of 10 m is taken into account
Ambient temperature Type 1 Type 2 Type 3 Type 4
Maximum permissible ambient temperature in °C for use
in temperature classes
T6 T5 T4-T1T6 T5 T4-T1T6 T5 T4-T1T6 T5 T4-
T1
827.X11 +73 +80 +80 +65 +80 +80 +45 +60 +80 +30 +45 +54
827.X12 +73 +80 +80 +66 +80 +80 +45 +60 +80 +30 +45 +74
827.X21 +73 +80 +80 +65 +80 +80 +45 +60 +80 +30 +45 +54
827.X22 +73 +80 +80 +66 +80 +80 +45 +60 +80 +30 +45 +74
Series 827S.E/X 39 / 4209.2019 / 1.0
Page 40
12 Disposal and recycling ARCA Regler GmbH
12 Disposal and recycling
WARNING
Operating media and auxiliary materials that are hazardous to
health
Danger to people and the environment!
► Wear suitable protective equipment
► If applicable, collect and dispose of rinsing medium or residual me-
dium. Particular attention is to be paid to dead spaces (pressure
compensation, bellows, etc.)
► Observe the legal regulations for the disposal of media that are haz-
ardous to health
ARCA products are modularly constructed and can be sorted by material
into the following components.
▪ Electronic components
▪ Metals
▪ Plastics
▪ Greases and oils
▪ Packaging material
The general rules are:
▪ greases and oils are usually water pollutants and must not be al-
lowed to escape into the environment
▪ Dispose of dismantled materials properly or recycle the separate ma-
terials
▪ Observe national disposal regulations
40 / 42 Series 827S.E/X09.2019 / 1.0
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www.arca-valve.com
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