Burkert 8793 User manual

Quickstart
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Type 8792, 8793
Electropneumatic positioner and process controller
Elektropneumatischer Positioner und Prozessregler
Positionneur et régulateur de process électropneumatique

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2009 - 2019
Operating Instructions 1902/09_EU-ML_00806106 / Original DE

3
1 QUICKSTART ..................................................................................................5
1.1 Definition of term “device” ....................................................... 5
2 SYMBOLS .........................................................................................................5
3 INTENDED USE .............................................................................................6
4 BASIC SAFETY INSTRUCTIONS ..........................................................6
5 GENERAL INFORMATION ........................................................................7
5.1 Scope of supply ......................................................................... 7
5.2 Contact address ........................................................................7
5.3 Warranty ...................................................................................... 8
5.4 Information on the Internet ...................................................... 8
6 DESCRIPTION OF SYSTEM ....................................................................8
6.1 General description ..................................................................8
6.2 Designs ........................................................................................ 8
6.3 Structure of the device ............................................................. 9
7 TECHNICAL DATA .....................................................................................10
7.1 Conformity .................................................................................10
7.2 Standards ..................................................................................10
7.3 Approval ....................................................................................10
7.4 Operating conditions ..............................................................10
7.5 Type label ..................................................................................10
7.6 Mechanical data.......................................................................11
7.7 Electrical data ...........................................................................11
7.8 Pneumatic data ........................................................................12
8 OPERATION ..................................................................................................12
8.1 Description of the operating and display elements .........12
8.2 Function of the keys ................................................................13
9 OPERATING STATES ............................................................................... 14
9.1 Changing the operating state ...............................................14
9.2 Displays in the AUTOMATIC operating state .................... 15
9.3 Master code ..............................................................................16
10 OPERATING LEVELS ...............................................................................16
10.1 Switching between the operating levels ............................16
11 ATTACHMENT AND ASSEMBLY .......................................................... 17
11.1 Installation of devices for the hazardous area ...................17
11.2 Attachment to a proportional valve with linear
actuators according to NAMUR ..........................................17
11.3 Attachment to a proportional valve with rotary actuator . 21
12 EXTERNAL POSITION SENSOR (REMOTE) ................................23
12.1 Mounting accessories ............................................................23
12.2 Connection and starting up of the external position
sensor (remote operation) .....................................................24
13 PNEUMATIC CONNECTION ................................................................. 26
13.1 Safety end positions ...............................................................27
14 ELECTRICAL INSTALLATION ............................................................... 28
14.1 Safety instructions .................................................................28
14.2 Designation of the circular connectors and contacts ....29
14.3 Connection of the positioner Type 8792 ...........................30
14.4 Connecting the process controller Type 8793 ................31
14.5 Electrical installation with cable gland ................................33
14.6 Terminal assignment for cable gland -
positioner Type 8792 .............................................................34
14.7 Terminal assignment for cable gland -
process controller Type 8793 ..............................................35
Contents
Type 8792, 8793
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4
Type 8792, 8793
15 PROFIBUS DP / DEVICENET..............................................................37
15.1 Designation of the circular connectors and contacts
Type 8792 .................................................................................37
15.2 Designation of the circular connectors and contacts
Type 8793 .................................................................................37
15.3 Electrical Installation PROFIBUS / DeviceNet .................38
15.4 Electrical connection PROFIBUS .......................................40
15.5 Electrical connection DeviceNet ..........................................41
16 START-UP ...................................................................................................... 41
16.1 Safety instructions ...................................................................41
16.2 Starting-up Type 8792 ...........................................................41
16.3 Start-up Type 8793 ...............................................................43
17 ACCESSORIES ...........................................................................................45
17.1 Communications software.....................................................45
18 PACKAGING, TRANSPORT, STORAGE ..........................................46
19 DISPOSAL .....................................................................................................46
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Quickstart
Type 8792, 8793
1 QUICKSTART
The operating instructions describe the entire life cycle of the device.
Keep these instructions in a location which is easily accessible to
every user and make these instructions available to every new owner
of the device.
Important Safety Information!
Read Quickstart carefully and thoroughly. Study in particular the
chapters entitled “Basic safety instructions” and “Intended use”.
▶Quickstart must be read and understood.
Quickstart for Type 8792/8793 explains, for example, how to install
and start-up the device.
A detailed description of the device can be found in the operating
instructions for positioner Type 8792-8793. These instructions also
include the warranty provisions and details about the correct disposal
of the device.
The operating instructions can be found on the Internet at:
www.burkert.com
1.1 Definition of term “device”
The term “device” used in these instructions always stands for the
Type 8792/8793.
2 SYMBOLS
The following symbols are used in these instructions.
DANGER!
Warns of an immediate danger!
▶Failure to observe the warning may result in a fatal or serious
injury.
WARNING!
Warns of a potentially dangerous situation!
▶Failure to observe the warning may result in a serious or fatal
injury.
CAUTION!
Warns of a possible danger!
▶Failure to observe this warning may result in a medium or minor
injury.
NOTE!
Warns of damage to property!
Important tips and recommendations.
refers to information in these operating instructions or in
other documentation.
▶designates instructions for risk prevention.
→designates a procedure which you must carry out.
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Intended use
Type 8792, 8793
3 INTENDED USE
Incorrect use of the Type 8792 and 8793 can be dangerous to
people, nearby equipment and the environment.
The device is designed for the open-loop control and closed-loop
control of media.
▶In the potentially explosive area use only devices with the Ex
additional plate.
▶For use in the potentially explosive area follow the Ex additional
instructions and the instructions on the Ex additional plate.
▶The device must not be exposed to direct sunlight.
▶Pulsating direct voltage (rectified alternating voltage without
smoothing) must not be used as operating voltage.
▶During use observe the permitted data, the operating conditions
and conditions of use specified in the contract documents and
operating instructions, as described in chapter “Operating condi-
tions”, page 10 in this manual and in the valve manual for the
respective pneumatically actuated valve.
▶The device may be used only in conjunction with third-party devices
and components recommended and authorised by Bürkert.
▶In view of the wide range of possible application cases, check
whether the device is suitable for the specific application case
and check this out if required.
▶Correct transportation, correct storage and installation and care-
ful use and maintenance are essential for reliable and faultless
operation.
▶Use the Type 8792 and 8793 only as intended.
4 BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• contingencies and events which may arise during the installation,
operation and maintenance of the devices.
• local safety regulations – the operator is responsible for observing
these regulations, also with reference to the installation personnel.
Danger – high pressure!
▶Before loosening the pneumatic lines and valves, turn off the
pressure and vent the pneumatic lines.
Risk of electric shock!
▶Before reaching into the device or the equipment, switch off the
operating voltage and secure to prevent reactivation!
▶Observe applicable accident prevention and safety regulations
for electrical equipment!
Risk of burns/risk of fire if used continuously through hot
device surface!
▶Keep the device away from highly flammable substances and
media and do not touch with bare hands.
General hazardous situations.
To prevent injury, ensure that:
▶That the system cannot be activated unintentionally.
▶Installation and repair work may be carried out by authorised
technicians only and with the appropriate tools.
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General information
Type 8792, 8793
▶After an interruption in the operating voltage or pneumatic sup-
ply, ensure that the process is restarted in a defined or con-
trolled manner.
▶The device may be operated only when in perfect condition and
in consideration of the operating instructions.
▶Do not supply the supply pressure connection of the system
with aggressive or flammable mediums.
▶Do not supply the supply pressure connection with any liquids.
▶Do not put any loads on the housing (e.g. by placing objects on
it or standing on it).
▶Do not make any external modifications to the device housings.
Do not paint the housing parts or screws.
▶The general rules of technology apply to application planning
and operation of the device.
NOTE!
Electrostatic sensitive components / modules!
The device contains electronic components which react sensitively
to electrostatic discharge (ESD). Contact with electrostatically
charged persons or objects is hazardous to these components. In
the worst case scenario, they will be destroyed immediately or will
fail after start-up.
• Observe the requirements in accordance with EN 61340-5-1 to
minimise or avoid the possibility of damage caused by sudden
electrostatic discharge!
• Also ensure that you do not touch electronic components when
the operating voltage is present!
5 GENERAL INFORMATION
5.1 Scope of supply
Generally the product package consists of:
Type 8792/8793 and the associated operating instructions
We will provide you with attachment kits for linear actuator
or rotary actuators as accessories.
For the multi-pole version of the Type 8792/8793 we will
provide you with cable connectors as accessories.
If there are any discrepancies, please contact us immediately.
5.2 Contact address
Germany
Bürkert Fluid Control Systems
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed
operating instructions.
And also on the internet at:
www.burkert.com
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Description of System
Type 8792, 8793
5.3 Warranty
The warranty is only valid if the Type 8792/8793 are used as intended
in accordance with the specified application conditions.
5.4 Information on the Internet
The operating instructions and data sheets for Type 8792 and 8793
can be found on the Internet at:
www.burkert.com
6 DESCRIPTION OF SYSTEM
6.1 General description
The positioner Type 8792 / process controller Type 8793 is a digital,
electro-pneumatic positioner for pneumatically actuated proportional
valves. The device incorporates the main function groups
- Position sensor
- Electro-pneumatic control system
- Microprocessor electronics
The position sensor measures the current positions of the proportional
valve. The microprocessor electronics continuously compare the current
position (actual value) with a set-point position value specified via the
standard signal input and supplies the result to the positioner/process
controller. If there is a control difference, the electro-pneumatic control
system corrects the actual position accordingly.
For the service is a 128 x 64 dot matrix graphics display and a keypad
with 4 keys available.
6.2 Designs
6.2.1 Type 8792, positioner
The position of the actuator is regulated according to the position
set-point value. The position set-point value is specified by an external
standard signal (or via field bus).
6.2.2 Type 8793, process controller
Type 8793 also features a PID controller which, apart from actual
position control, can also be used to implement process control (e.g.
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Description of System
Type 8792, 8793
level, pressure, flow rate, temperature) in the sense of a cascade control.
The process controller is linked to a control circuit. The position set-
point value of the valve is calculated from the process set-point value
and the actual process value via the control parameters (PID controller).
The process set-point value can be set by an external signal.
6.2.3 Type 8793 remote operation with
external position sensor
In the case of this model the positioner has no position sensor in the
form of a rotary position sensor, but an external remote sensor.
Depending on the connection type of the position sensor,
Type 8793 functions as a process controller or positioner
(positioner)
The following connection options are possible:
Function Interface Position sensor Setting in the menu
(ADD.FUNCTION)
Process
controller
Type 8793
digital (serial) Remote Sensor
Type 8798
POS.SENSOR
→ DIGITAL
Positioner
Type 8793
analog
(4...20 mA)*
Any, high-res-
olution position
sensor
POS.SENSOR
→ ANALOG
Tab. 1: Connection options Type 8793 with external position sensor
* If the position sensor is connected to the process controller
Type 8793 via the analog interface, it can be operated only
as a positioner (positioner).
6.3 Structure of the device
Mechanical position indicator
Operating module with display
and keys
Working connection 2
(connection: A2)
Supply pressure
connection 1.4 – 7 bar
(connection: P)
Working connection 1
(connection: A1)
Air exhaust connection/
air exhaust filter
Internal position sensor
Shaft for position sensor
Cable bushing
Electronic module
Control system
Pressure-
relief valve
Fig. 1: Structure Type 8792/8793
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Technical Data
Type 8792, 8793
7 TECHNICAL DATA
7.1 Conformity
In accordance with the Declaration of conformity, Type 8792 / 8793
is compliant with the EU Directives.
7.2 Standards
The applied standards which are used to demonstrate compliance with
the EU Directives are listed in the EU-Type Examination Certificate and/
or the EU Declaration of Conformity.
7.3 Approval
According to Device Group II Category 3G/D, the product is approved
for use in potentially explosive areas of Zones 2 and 22.
Follow instructions for use in potentially explosive areas. See
additional instructions ATEX.
7.4 Operating conditions
NOTE!
If used outside, the device may be exposed to direct sunlight
and temperature fluctuations which may cause malfunctions
or leaks!
• If the device is used outdoors, do not expose it unprotected to
the weather conditions.
• Ensure that the permitted ambient temperature does not exceed the
maximum value or drop below the minimum value.
Environmental temperature -10 – +60 °C
Degree of protection: IP 65 / IP 67* according to EN 60529
(only if cables, plugs and sockets have been
connected correctly).
* If the device is used under IP 67 conditions, the ventilation must be
removed and the exhaust air conducted into the dry area (see “Fig. 1”)
7.5 Type label
Example:
Type
Operating
voltage
Nominal power
Device variant
(NAMUR/Remote,
24 V DC/
PROFIBUS DP)
Supply pressure,
Degree of protection
Ambient temperature
CE marking
Approval mark CSA
(for Canada and USA)
Manufacture code
8792 24V DC 5W
NAMUR Profibus DP
P=1.4…7bar IP65/67
Tamb -10..+60°C
S/N 123456
00999999 W17MA
Made in Germany
Serial number
Order number
Barcode (contains order number and serial number)
Fig. 2: Description type label (Example)
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Technical Data
Type 8792, 8793
7.6 Mechanical data
Dimensions See data sheet
Material
Housing material Plastic-coated aluminium
Other external parts Stainless steel (V4A), PC, PE, POM,
PTFE
Sealing material EPDM, NBR, FKM
Mass approx. 1.0 kg
7.7 Electrical data
Protection class III in accordance with DIN EN 61140
(VDE 0140-1)
Connections 2 cable glands (M20 x 1.5) with screw-type
terminals 0.14 – 1.5 mm2 or circular plug-in
connector
Operating voltage 24 V DC ± 10% max. residual ripple 10%
Power consumption < 5 W
Input data for actual value signal
4...20 mA: Input resistance 180 Ω
Resolution 12 bit
Frequency: Measuring range 0...1000 Hz
Input resistance 17 kΩ
Resolution 1‰ of measurement value,
Input signal > 300 mVss
Signal form Sine, rectangle, triangle
Pt 100: Measuring range -20...+220 °C
Resolution < 0,1 °C
Measurement current < 1 mA
Input data for set-point value signal
0/4...20 mA: Input resistance 180 Ω
Resolution 12 bit
0...5/10 V: Input resistance 19 kΩ
Resolution 12 bit
Analogue feedback
max. current 10 mA
(for voltage output 0...5/10 V)
Burden (load) 0...560 Ω
(for voltage output 0/4...20 mA)
Inductive proximity
switches 100 mA current limit
Binary outputs galvanically isolated
Current limiting 100 mA, output is clocked if overload occurs
Binary input galvanically isolated
0...5 V = log „0“, 10...30 V = log „1“
inverted input in reverse order
(input current < 6 mA)
Communication
interface direct connection to PC via USB adapter
with integrated interface driver
Communications
software Communicator (see “Accessories”)
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Operation
Type 8792, 8793
7.8 Pneumatic data
Control medium Air, neutral gases
Quality classes in accordance with ISO 8573-1
Dust content Quality class 7, max. particle size 40 µm,
max. particle density 10 mg/m³
Water content Quality class 3, max. pressure dew point
- 20 °C or min. 10 degrees below the lowest
operating temperature
Oil content Quality class X, max. 25 mg/m³
Temperature range
of compressed air 0...+60 °C
Pressure range 1.4 – 7 bar
Air flow rate 95 lN / min (at 1.4 bar*) for aeration and
deaeration
150 lN / min (at 6 bar*) for aeration and
deaeration
(QNn = 100 lN / min (according to definition for
pressure drop from 7 to 6 bar absolute)).
Connections Internal thread G1/4“
* Pressure specifications: Overpressure with respect to
atmospheric pressure
8 OPERATION
8.1 Description of the operating and
display elements
Abbreviated designation for
the displayed process value
Operating elements:
Process value *
Unit of the displayed
process value
Designation for the function
of the keys
Right selection key
Arrow key , down arrow
Arrow key , up arrow
Left selection key
Display elements of the process level:
Save symbol
Symbol for position control
Symbol for process control
Symbol for the AUTOMATIC operating state
Other symbols are displayed according to the activated functions.
See operating instructions Type 8792/8793
Fig. 3: Display elements of the process level; operating elements
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Operation
Type 8792, 8793
Submenu
Designation for the function
of the keys
Display elements of the setting
level:
Menu designation
Operating elements:
Description see "“Fig. 3”"
Fig. 4: Display elements of the setting level
The display is adjusted to the set functions and operating levels.
In principle, a distinction can be made between the display view for
the process level and the setting level.
When the operating voltage has been applied, the process level is
displayed.
* The process values which can be displayed in the AUTOMATIC
operating state depend on type.
A detailed description can be found in the operating instructions
for Type 8792/8793.
8.2 Function of the keys
The function of the 4 keys in the control field differs depending on
the operating state (AUTOMATIC or MANUAL) and operating level
(process level or setting level).
The key function which is active is displayed in the gray text field
which is above the key.
Key function on the process level:
Key Key function Description of the
function
Operating
state
Arrow key OPN
(OPEN)
Manual opening of the
actuator MANUAL
Change the displayed value
(e.g. POS-CMD-TEMP-...) AUTOMATIC
Arrow key CLS
(CLOSE)
Manual closing of the
actuator MANUAL
Change the displayed value
(e.g. POS-CMD-TEMP-...) AUTOMATIC
Selection key MENU Change to the setting level
Note: Press key for
approx. 3 s.
AUTOMATIC
or MANUAL
Selection key AUTO Return to AUTOMATIC
operating state MANUAL
MANU Change to MANUAL oper-
ating state AUTOMATIC
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Operating states
Type 8792, 8793
Key function on the setting level:
Key Key function Description of the function
Arrow key Scroll up in the menus
+ Increase numerical values
Arrow key Scroll down in the menus
– Decrease numerical values
< – Change by one digit to the left; when
entering numerical values
Selection key EXIT (BACK) Return to the process level
Gradually return from a submenu
option
ESC Leave a menu
STOP Stop a sequence
Selection key ENTER
SELEC
OK
INPUT
Select, activate or deactivate a menu
option
EXIT (BACK) Gradually return from a submenu
option
RUN Start a sequence
STOP Stop a sequence
Tab. 2: Function of the keys
9 OPERATING STATES
Type 8792/8793 has 2 operating states:
AUTOMATIC and MANUAL.
AUTOMATIC
MENU CMD POS MANU
POS 0.0
In the AUTOMATIC operating state normal
controlled operation is implemented.
(The symbol for AUTOMATIC is
shown on the display. A bar runs along
the top of the display).
MANUAL
MENU OPN CLS AUTO
POS 0.0
In the MANUAL operating state the
valve can be manually opened or closed
via the arrow keys (key function
OPN and CLS ).
(The symbol for the AUTOMATIC
is hidden. No bar running along the top
of the display).
9.1 Changing the operating state
Change to MANUAL operating state
(only available for process value
display: POS, CMD, PV, SP)
MANU press
Return to AUTOMATIC operating
state
AUTO press
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Operating states
Type 8792, 8793
9.2 Displays in the AUTOMATIC
operating state
Type 8792 Description of the display Type 8793
MENU
CMD/POS
CMD MANU
POS 0.0
Actual position of the valve
actuator (0 – 100%)
MENU SP/PV CMD MANU
POS
0.0
MENU POS TEMP MANU
CMD 0.0
Set-point position of the valve
actuator (0 – 100%)
MENU POS TEMP MANU
CMD
0.0
MENU CMD
CMD/POS
TEMP
0.0

C
Internal temperature in the
housing of the positioner ( °C)
MENU CMD PV
TEMP
0.0

C
Process actual value
MENU TEMP SP MANU
PV
0.0
m3/min
Process set-point value
MENU PV PV (t) INPUT
SP
0.0
m3/min
Simultaneous display of the
set-point position and the
actual position of the valve
actuator (0 – 100 %)
MENU
CMD/POS
POS MANU
0.0
SP
PV
0.0
m3/min
m3/min
Type 8792 Description of the display Type 8793
Graphical display of SP and PV
with time axis
MENU HOLD
SP / PV (t)
MENU HOLD
CMD / POS (t)
Graphical display of POS and
CMD with time axis
MENU HOLD
CMD / POS (t)
MENU
CMD/POS
CLOCK
INPUT
4.0
mA
Input signal for
set-point position
(0 – 5/10 V / 0/4 – 20 mA)
MENU
INPUT X.TUNE
INPUT
12:0000
Thu. 01 . 09 . 11
CLOCK
Time, weekday and date
MENU
POS (t)
X.TUNE
INPUT
12:0000
Thu. 01 . 09 . 11
CLOCK
MENU CLOCK
CMD/POS
RUN
X.TUNE
Automatic adjustment of the
positioner (positioner)
MENU CLOCK P.TUNE RUN
X.TUNE
Automatic optimization of the
process controller parameters
MENU X.TUNE P.LIN RUN
P.TUNE
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Operating levels
Type 8792, 8793
Type 8792 Description of the display Type 8793
Automatic linearization of the
process characteristics
MENU P.TUNE
CMD/POS
RUN
P.LIN
MENU X.TUNE POS MANU
0.0
CMD
POS
0.0
Simultaneous display of the
set-point position and the
actual position of the valve
actuator (0 – 100 %)
MENU P.LIN SP/PV MANU
0.0
CMD
POS
0.0
9.3 Master code
Operation of the device can be locked via a freely selectable user
code. In addition, there is a non-changeable master code with
which you can perform all operator control actions on the device.
This 4-digit master code can be found on the last pages of these
operating instructions in the chapter “Master code”.
If required, cut out the code and keep it separate from these oper-
ating instructions.
10 OPERATING LEVELS
There is the process level and the setting level for the operation and
setting of Type 8792/8793.
Process level:
The running process is displayed and operated on this level.
Operating state: AUTOMATIC – Displays of the process data
MANUAL – Manual opening and closing of
the valve
Setting level:
The basic settings for the process are made on this level.
- Inputting the operating parameters
- Activating auxiliary functions
If the device is in the AUTOMATIC operating state when
changing to the setting level, the process continues running
during the setting.
10.1 Switching between the operating
levels
Change to the setting level MENU Press for
3 seconds
Return to the process level EXIT press briefly
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Attachment and assembly
Type 8792, 8793
11 ATTACHMENT AND ASSEMBLY
11.1 Installation of devices for the
hazardous area
When installing devices in the explosion-protected area, observe the
“Additional information for use in the hazardous area” enclosed with
the Ex-devices.
11.2 Attachment to a proportional valve
with linear actuators according to
NAMUR
The valve position is transferred to the position sensor installed in
the positioner via a lever (according to NAMUR).
The attachment kit for pusher actuators can be purchased
from Bürkert as an accessory by quoting order number
787215. For associated parts see “Tab. 3”.
Part no. Quantity Name
1 1 NAMUR mounting bracket IEC 534
2 1 Hoop
3 2 Clamping piece
4 1 Driver pin
5 1 Conical roller
6a 1 NAMUR lever for stroke range 3 – 35 mm
6b 1 NAMUR lever for stroke range 35 – 130 mm
Part no. Quantity Name
7 2 U-bolt
8 4 Hexagon bolt DIN 933 M8 x 20
9 2 Hexagon bolt DIN 933 M8 x 16
10 6 Circlip DIN 127 A8
11 6 Washer DIN 125 B8.4
12 2 Washer DIN 125 B6.4
13 1 Spring VD-115E 0.70 x 11.3 x 32.7 x 3.5
14 1 Spring washer DIN 137 A6
15 1 Locking washer DIN 6799 - 3.2
16 3 Circlip DIN 127 A6
17 3 Hexagon bolt DIN 933 M6 x 25
18 1 Hexagon nut DIN 934 M6
19 1 Square nut DIN 557 M6
21 4 Hexagon nut DIN 934 M8
22 1 Guide washer 6.2 x 9.9 x 15 x 3.5
Tab. 3: Attachment kit for linear actuators
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Attachment and assembly
Type 8792, 8793
11.2.1 Installation
WARNING!
Risk of injury from improper installation!
▶Installation may be carried out by authorised technicians only
and with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶Secure system from unintentional activation.
▶Following assembly, ensure a controlled restart.
Procedure:
→Using the clamping pieces ③, hexagon bolts ⑰ and circlips
⑯ attach the hoop ② to the actuator spindle.
3
17
2
16
Legend:
No. Name
2 Hoop
3 Clamping piece
16 Circlip
17 Hexagon bolt
Fig. 5: Attaching the hoop
→Select short or long lever according to the stroke of the actuator.
(see “Tab. 3: Attachment kit for linear actuators”).
→Assemble lever (if not pre-assembled) (see “Fig. 6”).
17
16
12
6
19
18
14
12
22
5
4
13
15
Legend:
No. Name
4 Driver pin
5 Conical roller
6 Lever
12
For a
description of
the numbering,
refer to“Tab.
3: Attachment
kit for linear
actuators”
13
14
15
16
17
18
19
22
Fig. 6: Assembling the lever
The gap between the driver pin and the shaft should be
the same as the actuator stroke. As a result, the lever has a
swing range of 60° (see “Fig. 7”).
Angular range of the position sensor:
The maximum angular range of the position sensor is 150°.
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Attachment and assembly
Type 8792, 8793
Rotational range of the lever:
To ensure that the position sensor operates at a good reso-
lution, the rotational range of the lever must be at least 30°.
The rotational movement of the lever must be within the
position sensor rotation range of 150°.
The scale printed on the lever is not relevant.
Angular range of the lever
Ideal: 60°
Minimal: 30°
Maximal: 150°
The rotational movement of the lever must be within the position
sensor rotational range of 150°.
60°
Fig. 7: Angular range of the lever
11.2.2 Attaching mounting bracket
→Attach mounting bracket ① to the back of the Type 8792/8793
with hexagon bolts ⑨, circlip ⑩ and washers ⑪
(see “Fig. 8”).
The selection of the M8 thread used on the Type
8792/8793 depends on the size of the actuator.
→To determine the correct position, hold the Type 8792/8793 with
mounting bracket on the actuator.
The conical roller ⑤ on the lever ⑥ of the position sensor must
be able to move freely in the hoop (refer “Fig. 8”) along the entire
stroke range of the actuator.
At 50% stroke the lever position should be approximately hori-
zontal (see chapter “11.2.3 Aligning lever mechanism”).
①
⑨
⑩⑪
M8 thread
⑥⑤
Legend:
No. Name
1 Mounting
bracket
5 Conical
roller
6Lever
9 Hexagon
bolt
10 Circlip
11 Washer
Fig. 8: Attaching mounting bracket
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Attachment and assembly
Type 8792, 8793
Attaching the Type 8792/8793 with mounting bracket for actu-
ators with cast frame:
→Attach mounting bracket to the cast frame with one or more
hexagon bolts ⑧, washers ⑪ and circlips ⑩ (see “Fig. 9”).
810 11 1
8
10
11
Legend:
No. Name
1 Mounting bracket
8 Hexagon bolt
10 Circlip
11 Washer
Fig. 9: Attach Type 8792/8793 with mounting bracket; for actuators with
cast frame
Attaching the Type 8792/8793 with mounting bracket for actu-
ators with columnar yoke:
→Attach mounting bracket to the columnar yoke with the U-bolt ⑦,
washers ⑪, circlips ⑩ and hexagon nuts 21 (see “Fig. 10”).
Legend:
No. Name
7U-bolt
10 Circlip
11 Washer
21 Hexagon nut
21
10
11
7
Fig. 10: Attach Type 8792/8793 with mounting bracket; for actuators with
columnar yoke
11.2.3 Aligning lever mechanism
The lever mechanism cannot be correctly aligned until the
device has been connected electrically and pneumatically.
→Move the actuator in MANUAL operating state to half stroke
(according to the scale on the actuator).
→Adjust the height of the Type 8792/8793 until the lever is
horizontal.
→Fix the Type 8792/8793 in this position on the actuator.
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