Centork Centronik User manual

V A L V E C O N T R O L
CENTRALAIR, S.A.
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http://www.centork.com
AUTOMAIR NORTE LDA.
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Rua Luis de Campos, 42 - P4520 FEIRA - Tfno.: 351 (056) 37 31 10 - Fax : 351 (056) 37 31 11
V A L V E C O N T R O L
CENTRONIK MODULATING DUTY
USERS MANUAL
1497.MANE1412X001 Rev.12/99


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INDEX
1-
2-
3-
4-
5-
6-
Page 12 Centronik modulating duty users manual
Electric actuators modulating duty
Centronik electric actuators modulating duty description
Electric connection
Switches configuration
Modulating parameters setting procedure
Modulating Duty Centronik operation
CAUTION
Electric actuators are high value devices. In order to prevent damage in their handling, setting and use,
it is essential to follow all the points in this manual.
The actuator is an electrical device, therefore you should take into account the EN 60204, Directive
73/23/ECC safety standars.
The centork electric actuators must be handled with care and caution.
Motor
Electrical connection
Centronik
Switching and signalling unit
Output
Manual operation
Centronik modulating duty users manual Page 1
2
2
4
5
6
12
6. MODULATING DUTY CENTRONIK OPERATION.
The selector being in LOCAL mode, the Modulating CENTRONIK will operate as a ON/OFF duty CENTRONIK.
To operate the actuator, use the front panel buttons OPEN, CLOSE, STOP an DES.
The selector being in REMOTE position, the CENTRONIK will operate on MODULATING duty.
The CENTRONIK can also be operated by a serial line. These are the communication´s characteristics:
Transmission speed: 9600 BPS
Character format: 1 start bit, 8 data bits, parity even and 1 stop bit.
For more information about the characteristic of the protocol used, such as message format and message
sequence, refer to "Centronik operation. Serial line" brochure.
The CENTRONIK software has a "movement detection" funtion. If during the next 6 seconds after the last order
noshaftmovementisdetectedtheunitwillstoptheoperation.Aftercorrectingtheproblem,theSTOPpushbutton
be pressed to reset the unit.
The CENTRONIK also incorporates a phase missing and an inverse phase connection detection system. Both
ofthem are indicated inthe front panel LEDs,and it automatically adaptsits operation to theorder of the phases
in such a way that the turning sense is correct.
Every CENTRONIK is provided with two main fuses. If needed, they should be changed as follows:
1- Unscrew the electrical connection cover.
2- Unscrew the correspondant fuseholder and change the fuse. Standard 20 x 5 mm 500 mA normal blow
fuses are used.
3- Screw both fuseholder and electrical connection back. Check the proper connection, the state of the
oring seal and the proper instalation of the latter, greasing it slightly. Fasten the 4 screws crosswise.
4- Tighten cable glands to ensure enclosure IP67 (IP68 on request).
CAUTION Make sure a proper ground (GND) connection og the unit is done.
Page

Centronik modulating duty users manual Page 11Page 2 Centronik modulating duty users manual
1. ELECTRIC ACTUATORS MODULATING DUTY
Modulation in electric actuators consists in positioning the actuated element according to a control input signal.
This input signal can be a current signal (0/4-20 mA) or a voltage signal (0-10V.). The received input signal is
comparedwiththesignalreceivedfromtheelectronicpostiontransmitter,TPS. Once both signals are compared,
it is determined whether is higher, equal or lower than the other, and according to this the motor is operated in
the sense needed to reduce this difference.
2. CENTRONIK ELECTRIC ACTUATORS MODULATING DUTY DESCRIPTION.
The Centronik modulating duty is an electronic unit able to control any Centork electric actuator´s operation in
modulating duty.
The unit consists of several PCBs containing a microprocessor, so the unit should be handled very carefully.
The Centronik modulating duty has three main operating modes selectable by the front panel selector: LOCAL,
REMOTE and OFF.
In the OFF position, the actuator remains connected but does not work.
In the LOCAL mode, the Centronik modulating duty only follows the front panel pushbuttons operation, the
same as in the Centronik On/Off Duty. In the REMOTE mode, the operation is made via the remote inputs
received through the users connector, or via RS-485 serial line.
The CENTRONIK unit is part of a complete CENTORK ELECTRIC ACTUATOR. All the points stated in the
“Electric actuators installation and maintenance manual” should be followed.
Both “CENTRONIK users manual” and “Electric actuators installation and maintenance manual” are supplied
together.
Fig. 1
In the front panel (fig. 1), the user will find the following described items:
Open pushbutton
This is the pushbutton used to make the actuator run in the Open direction in LOCAL
mode.
Stop pushbutton
This is the button used to stop any Open/Close operation in LOCAL mode.
It will be also used to reset the unit after any failure.
5.16. Change of password.
Each time we go through this section, the CENTRONIK switches on L1, L2, L3, L4 and L5 in red colour.
will be displayed, press
choose between and . In order to confirm has to be pressed twice. If after the first time
or is pressed, the new password can be chosen again.
CAUTION Password changing, is a delicate operation. Write it down.
5.15. Data Logging.
In this submenu it is possible to know the progression of a set of operational data referring to the actuator along
its operating life.
is displayed and after pressing the values of the stored data are displayed.
In order to display the different data, place on the option to be read and after pressing the Centronik will
startto display the value(as an example, ifthe number of closingshave been 1.357, thecontrol will display “13”,
“57”, “ “, “13”, “57”, “ “, “13”, “57”, “ “,) until is pressed again; then the Centronik will display the next data to
be read. There will always be a blank space to mark the beggining of a new data.
Data available:
Nr. of openings by limit switching.
Nr. of openings by torque switching.
Nr. of closings by limit switching.
Nr. of closing by torque switching.
Total running hours.
Nr. of trippings of the motor thermoswitches.
Nr. of starts
All these data can be obtained through the serial line. For more information refer to "Centronik operation. Serial
line" brochure.
5.14. Control input signal and valve position setting.
Inorder to achieve a high overall accuracy, the maximum control inputignal and thevalve open position have to
be set together. Very important: the electronic position transmitter TPS should have been already adjusted
correctly according to the “ Electric Actuators Instalation and Maintenance Manual” in order to make a correct
control input signal setting.
Before making the calibration, the valve should be brought to the maximum opening position, therefore
the TPS should be supplying the maximum current.
will be displayed, press
on the display indicator a blinking value will appear, next press + simultaneously and the value will stop
blinking. Press to record the value into the memory and return to displaying .
Note: Non calibration of input signal, will cause malfunction of the actuator.

Page 10 Centronik modulating duty users manual
Close
pushbutton
DES pushbutton
LED L1
Red: The actuator has arrived to the OPEN position.
Red blinking: The actuator is running in the OPEN direction.
Yellow blinking: Failure, both FRC1 and FRA1 are switched.
LED L2
Yellow: Blinker failure stop.
Red: Overtemperature stop (TRM).
Red blinking: Overtemperature happened and has dissapeared.
LED L3
Green: The actuator has arrived to the CLOSE position.
Green blinking: The actuator is running in the CLOSE position.
Yellow blinking: Failure, bot FRC1 and FRA1 are switched.
LED L4
Red: Torque dependant stop in OPEN direction.
Green: Torque dependant stop in CLOSE direction.
Yellow blinking: Failure, Both FPC1 and FPA1 are switched.
LED L5
Green: Correct phase connection.
Red: Phase missing.
Yellow: Inverse phase connection.
"Down" pushbutton
This is the pushbutton used to move down through the menu in programming mode.
"Enter" pushbutton
This is the pushbutton used to select the desired option on the menu in programming
mode.
"Up" pushbutton
This is the pushbutton used to move up through the menu in programming mode.
Indicator display
This is the display used to communicate with the CENTRONIK.
The displaying corresponds to 99% and to 100%.
This is the pushbutton used to make the actuator run in the Close direction in LOCAL mode.
This is the pushbutton we will have to use to enable the actuator movement, after a torque
dependant stop, in the same direction it stopped. Note that the actuator will stop as soon as
the CENTRONIK detects shaft movement.
5.11. Autolearn
In this submenu, the CENTRONIK is allowed to check the overrun/ overtravel of the valve and, ignoring the
modulating bands, to make a more accurate positioning.
will be displayed, press
choose between to activate this option and to ignore it.
The factory standard configuration is .
5.12. Close tightly
In this submenu the ‘close tightly’ function is activated: if the command signal brings the actuator to a position
close to total closing, (being the value lower than 2% of the whole stroke) the actuator reachs automatically the
end of the stroke.
is displayed, press
choose between to activate this option and to ignore it. The standard configuration is .
If activating, choose between and in 0.5% steps.
5.13. Blinker
In this submenu the inclusion or not of the blinker signal in the actuator operation is decided.
will be displayed, press
choose between to activate this option and to ignore it.The standard configuration is .
5.10. Modulating bands.
In this submenu, the modulating bands are adjusted. There are two dead bands for each operation sense, the
outer dead band and the inner dead band. The outer dead band is the one out of which the actuator will start to
search the control input signal and the inner dead band is the one in which the actuator will consider that the
control input signal has been reached.
will be displayed, the press .
choose between for open direction and for close direction, press ,
in each of the cases it will be possible to choose between:
and for the inner dead band in 0.5% steps and between
and for the outer dead band in 0.5% steps.
Ifanyof the inner dead bandsisselectedata higher value than anyoftheouter dead bands, then theouterdead
bandwillautomatically be fixed at 1% higherthanthe inner dead band. As factorystandard,the inner dead band
is at 2% and the outer dead band is at 5%.
The ESD signal will only be received in the remote mode. The CENTRONIK will then cancel any operation that
itcould be doing. It is activated witha logic level “0”; in this casethis is done by joining the inputESD with the pin
number 19.
The factory standard configuration is and .
Centronik modulating duty users manual Page 3

Page 4 Centronik modulating duty users manual Centronik modulating duty users manual Page 9
3. ELECTRIC CONNECTION
CAUTION
When handling electric equipment, take into account the safety standards (EN 60204, Direc. 73/23/EEC).
Check that the type of current, voltage and frequency suits the actuator according to motor nameplate.
When dismounting the electric connection cover, we find, inside this cover, the electric connection
diagram for each actuator.
The IP67 degree of protection, IP68 (on request), is only guaranteed if the correct cable glands are used.
Make sure a proper ground (GND) connection of the unit is done.
CAUTION
Do not attempt to lever off the cover with a screw driver as this will damage the “O” ring seal.
The wiring scheme fixed in the cover is particular to each actuator and must not be interchanged with
any other actuator.
Types of connection :
2- Terminals connection :
a) Feed the cable(s) through the cable glands¹.
b) With a suitable screwdriver, connect the cables for the control signals
according to the electric connection diagram.
c) Connectthe 3 phases L1, L2,L3 to the connections 1,2and 3. Connect
the earth cable to the earth connection.
d) Onceyouhavecheckedthattheconnectionshavebeenproperlycarried
out, close the connection cover and check the proper connection, the
state of the o-ring seal and the proper installation of the latter, greasing
it slightly. Fasten the 4 screws crosswise.
e) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
1- Plug-socket connectors with screws:
a) Unscrew the attachment plate from the connection cover.
b) Feed the cable(s) through the cable glands¹.
c) With a suitable screwdriver, connect the cables for the control signals
according to the electric connection diagram.
d) Connectthe3 phases L1, L2, L3to the connections 1, 2,and3. Connect
the earth cable to the earth connection of the plug.
e) Once you have checked that the connections have been carried out
properly, screw the attachment plate back to the connection over
respecting the direction of the connectors.
f) Close the connection cover and check the proper connection, the state
of the o-ring seal and the proper installation of the latter, greasing it
slightly. Fasten the 4 screws crosswise.
g) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
¹ The cable glands are not supplied with the Standard version.
The modeled curves are:
1 Isopercentage curve
2 Quick opening curve
3 Linear curve
4 Customized curve (example)
will be displayed, then press ,
choose between :
for linear curve
for isopercentage curve
for quick opening curve and
for customized opening curve.
For customized opening, 10 points of alignment ... are displayed, for each of them choose the
corresponding opening percentage between and .
In order to enter the values of the personalized curve, the user should have previously modelized the curve to
know to which opening percentage corresponds each step.
The curve configured as factory standard is .
5.9. ESD (Emergency Shut Down)
In this submenu, the operation of the actuator when receiving the ESD emergency signal, is configured. When
the signal is received, the CENTRONIK will ignore all the securities except the security selection made by the
user, the motor thermoswitches or the torque micro switches.
The goal for the actuator will be to reach the programmed emergency position.
will be displayed, then press .
choose between :
to considerer the thermoswitches or to considerer the torque microswitches.
Next choose between:
for actuator in open position.
for actuator in close position.
for "standstill" position.
ton open the valve up to the recorded proportion. Choose between and .
5.7. Rest time.
In this section, the user can configure the time, in seconds, the actuator will rest after the last stop ignoring any
notice neither from the input remote signal nor from the pushbuttons.
is displayed, choose between and . The value configured factory is .
5.8. Characterisation of the valve opening curve.
In this submenu, the opening curve of the valve is configured.

Page 8 Centronik modulating duty users manual Centronik modulating duty users manual Page 5
3- Plug-socket connectors with crimp:
a) Unscrew the attachment plate from the connection cover.
b) Feed the cable(s) through the cable glands¹.
c) With a suitable crimping tool (Harting (Ref. 0999 0000 110)), connect the
cablesto the control signals accordingto the electric connectiondiagram.
d) Connect the 3 phases L1, L2, L3 to the connections 1,2 and 3. Connect
the earth cable to the earth connection of the plug.
e) Once you have checked that the connections are properly done, screw
theattachmentplateback to the connection cover respecting thedirection
of the connectors.
f) Close the connection cover and check the proper connection, the state of
the o-ring seal and the proper installation of the latter, greasing it slightly.
Tighten the 4 screws crosswise.
g) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
CAUTION
CENTORK actuators are provided with thermoswitches mounted in the windings of the motor. The
protection of the motor is only achieved with a proper connection for these thermostats. Centork
guarantee for the motor is not valid if this connection is not properly done.
In the case of 1NO+1NC double microswitches, only the same potential can be connected through both
circuits. For different potentials, two double microswitches must be used.
1The cable glands are not supplied with the Standard version.
4. SWITCHES CONFIGURATION
The configuration of switches needs to be done with the selector in the OFF position.
The CENTRONIK has several switches to configure its operation mode.
CAUTION
This is a very sensible electronic device. Manipulation of setting switches should be made very carefully,
in a way that other electronic components are not damaged.
1- With the selector in the OFF position, take off the
front cover of the unit.
2- In the PCB, the setting switches are located as
indicated in the next figure
5.6. Remote indication outputs.
In this submenu, remote indication outputs are configured. The signal and the output can be both chosen.
The configuration of remote outputs in LOCAL mode is the same than the one programmed in REMOTE mode.
The output signals will always be normally open (NO) signals.
is displayed, then press .
choose between :
Valve Open Failure
Valve Closed Local/Remote
Torque tripped opening Indication for intermediate position
Torque tripped closing Position reached
Motortemperature Command signal failure
Phase failure Rest time
Torque tripped ESD (Emergency Shut Down) received
once chosen press to record the option selected
For remote outputs repeat the procedure previously described.
The factory default values for exits are
Adjust of span (this value will always be higher than the value selected for zero):
will be displayed, press and select the percentage of command signal that corresponds to span.
Press , the following step is to select the percentage of opening desired for the span, select between the
value selected for zero and . Both values are configured, as factory standard, to .
5.5. Zero and span, minimun and maximum command signal and split range setting.
In this submenu, the control input signal range is fitted to the valve stroke. This section is also useful for
programming the split range working mode.
is displayed, then press
Adjust of zero :
will be displayed, press and select the percentage of control input signal that corresponds to zero.
Press , the following step is to select the % of opening of the valve desired for the zero, select between
and . Both values are configured, as factory standard, to .
===
As standard. the CENTRONIK is supplied without relays. The output characteristic is 24 V DC /100
mA(max.load capacity). If relays are supplied, the outputs are potential free contacts.
==
Remote

Centronik modulating duty users manual Page 7
3- The meaning of the switches and the different combinations are described in the following tables:
SW4 Direction to close
OFF Clockwise
ON Anti-clockwise
SW1 SW2 SW3 Operation modes
OFF OFF OFF Not used
ON OFF OFF Mode 1.
OFF ON OFF Mode 2.
ON ON OFF Mode 3.
ON ON ON Mode Test. SW8 Remote mode selection
OFF Remote Serial
ON Remote Paralel
- SW6 :
This is the switch used to indicate to the CENTRONIK unit the way the TPS card will be adjusted (4-20
mA or 0-20 mA). It´s important to configure it properly, otherwise, the CENTRONIK will not operate
correctly.
- SW4 :
The possible directions of close choosable with this switch are:
OFF so that the actuator closes clockwise
ON so that the actuator closes anti-clockwise
-SW8 :
This switch will be used to select the input used for the control signal.
Description of the operation modes:
- Mode1 :
This is the Open by limit switching and Close by torque switching operation.
- Mode2 :
This is the Open and Close by limit switching operation.
- Mode3 :
This is the Open and Close by torque switching operation.
- Test mode :
Thisis not an operation mode. It isa test program to control the correctoperation of the control hardware.
Note that some internal connections have to be done before running the program.
CAUTION THE TEST PROGRAM SHOULD BE RUN ONLY UNDER THE AUTORISATION
OF CENTORK.
CAUTION Note that in the operation modes 1 and 3, the FRC limit switches will have to be
set tooperate shortly before reaching the end CLOSED position. If not, the
incorrect indications of the CENTRONIK unit could cause malfunction in the
process.
5. MODULATING PARAMETERS SETTING PROCEDURE
Before programming the CENTRONIK, ensure that the switching and signalling unit and the position indicator
TPS are adjusted correctly (See “Electric actuators installation and maintenance manual).
In order to enter the programming mode, button must be pressed and remain pressed for more than 3 sec.
5.1 Introduction
Referring to the modulating characteristics, the programming procedure is as follows:
The configuration/programming is done in the LOCAL mode. For the entire programming of the CENTRONIK,
the buttons used are and the display indicator for the displaying.
SW6 TPS Indication
OFF 0 - 20 mA.
ON 4 - 20 mA.
The procedure is always to select the value with (the displacement from one value to another will be
fast if any of both keys remains pressed more than 0.5 sec.) on a blinking list. After positioning on the desired
value, it´s selected with the . Once the value is selected, it stops blinking. After selecting the value, the
CENTRONIK waits the user to press once again to record the option and leave the submenu. If or
pushbuttons are pressed after selecting the value, the display blinks again.
If a step of the programming wants to be obviated, just press or
In order to leave any parameter and reach the former level, DES pushbutton will be pressed. By pressing it
successively, the programming mode is quitted.
After entering the programming mode, on the display the letters are shown blinking and the CENTRONIK
waits for the key to be pressed as a confirmation. If any other key is pressed, programming mode is quitted
and the state of the valve is seen again.
Once confirming to enter the programming mode, the CENTRONIK will ask for the password by displaying the
word
5.2 Security password.
will be displayed, press .
The password is selected from one list that goes from to .
The factory configured password is .
If the password introduced is not the correct, blinks on the display and has to be pressed again in
order to gain a second try. If at the second try the correct password is not introduced, the CENTRONIK leaves
programming mode and the state of the valve is displayed again.
Once the correct password is introduced, the programming mode of the CENTRONIK is accessed.
5.3. Control input signal.
On this submenu the type of control input signal that the CENTRONIK will receive is chosen.
will be displayed, then press .
is shown blinking and the CENTRONIK waits for the password.
The password will only be provided if necessary. Consult CENTORK.
The control input signal is factory standard 4-20 mA.
Once the password is selected, press ,
choose between :
for voltage input signal and for current input signal.
If current input signal is selected, another submenu will appear and its options will be :
for 4...20 mA and for 0...20 mA.
5.4. Polarity.
In this submenu the meaning for the minimum control input signal is determined.
will be displayed, then press ,
choose between :
for open or for closed. The factory standard configuration is .
Factory standard
Page 6 Centronik modulating duty users manual

Centronik modulating duty users manual Page 7
3- The meaning of the switches and the different combinations are described in the following tables:
SW4 Direction to close
OFF Clockwise
ON Anti-clockwise
SW1 SW2 SW3 Operation modes
OFF OFF OFF Not used
ON OFF OFF Mode 1.
OFF ON OFF Mode 2.
ON ON OFF Mode 3.
ON ON ON Mode Test. SW8 Remote mode selection
OFF Remote Serial
ON Remote Paralel
- SW6 :
This is the switch used to indicate to the CENTRONIK unit the way the TPS card will be adjusted (4-20
mA or 0-20 mA). It´s important to configure it properly, otherwise, the CENTRONIK will not operate
correctly.
- SW4 :
The possible directions of close choosable with this switch are:
OFF so that the actuator closes clockwise
ON so that the actuator closes anti-clockwise
-SW8 :
This switch will be used to select the input used for the control signal.
Description of the operation modes:
- Mode1 :
This is the Open by limit switching and Close by torque switching operation.
- Mode2 :
This is the Open and Close by limit switching operation.
- Mode3 :
This is the Open and Close by torque switching operation.
- Test mode :
Thisis not an operation mode. It isa test program to control the correctoperation of the control hardware.
Note that some internal connections have to be done before running the program.
CAUTION THE TEST PROGRAM SHOULD BE RUN ONLY UNDER THE AUTORISATION
OF CENTORK.
CAUTION Note that in the operation modes 1 and 3, the FRC limit switches will have to be
set tooperate shortly before reaching the end CLOSED position. If not, the
incorrect indications of the CENTRONIK unit could cause malfunction in the
process.
5. MODULATING PARAMETERS SETTING PROCEDURE
Before programming the CENTRONIK, ensure that the switching and signalling unit and the position indicator
TPS are adjusted correctly (See “Electric actuators installation and maintenance manual).
In order to enter the programming mode, button must be pressed and remain pressed for more than 3 sec.
5.1 Introduction
Referring to the modulating characteristics, the programming procedure is as follows:
The configuration/programming is done in the LOCAL mode. For the entire programming of the CENTRONIK,
the buttons used are and the display indicator for the displaying.
SW6 TPS Indication
OFF 0 - 20 mA.
ON 4 - 20 mA.
The procedure is always to select the value with (the displacement from one value to another will be
fast if any of both keys remains pressed more than 0.5 sec.) on a blinking list. After positioning on the desired
value, it´s selected with the . Once the value is selected, it stops blinking. After selecting the value, the
CENTRONIK waits the user to press once again to record the option and leave the submenu. If or
pushbuttons are pressed after selecting the value, the display blinks again.
If a step of the programming wants to be obviated, just press or
In order to leave any parameter and reach the former level, DES pushbutton will be pressed. By pressing it
successively, the programming mode is quitted.
After entering the programming mode, on the display the letters are shown blinking and the CENTRONIK
waits for the key to be pressed as a confirmation. If any other key is pressed, programming mode is quitted
and the state of the valve is seen again.
Once confirming to enter the programming mode, the CENTRONIK will ask for the password by displaying the
word
5.2 Security password.
will be displayed, press .
The password is selected from one list that goes from to .
The factory configured password is .
If the password introduced is not the correct, blinks on the display and has to be pressed again in
order to gain a second try. If at the second try the correct password is not introduced, the CENTRONIK leaves
programming mode and the state of the valve is displayed again.
Once the correct password is introduced, the programming mode of the CENTRONIK is accessed.
5.3. Control input signal.
On this submenu the type of control input signal that the CENTRONIK will receive is chosen.
will be displayed, then press .
is shown blinking and the CENTRONIK waits for the password.
The password will only be provided if necessary. Consult CENTORK.
The control input signal is factory standard 4-20 mA.
Once the password is selected, press ,
choose between :
for voltage input signal and for current input signal.
If current input signal is selected, another submenu will appear and its options will be :
for 4...20 mA and for 0...20 mA.
5.4. Polarity.
In this submenu the meaning for the minimum control input signal is determined.
will be displayed, then press ,
choose between :
for open or for closed. The factory standard configuration is .
Factory standard
Page 6 Centronik modulating duty users manual

Page 8 Centronik modulating duty users manual Centronik modulating duty users manual Page 5
3- Plug-socket connectors with crimp:
a) Unscrew the attachment plate from the connection cover.
b) Feed the cable(s) through the cable glands¹.
c) With a suitable crimping tool (Harting (Ref. 0999 0000 110)), connect the
cablesto the control signals accordingto the electric connectiondiagram.
d) Connect the 3 phases L1, L2, L3 to the connections 1,2 and 3. Connect
the earth cable to the earth connection of the plug.
e) Once you have checked that the connections are properly done, screw
theattachmentplateback to the connection cover respecting thedirection
of the connectors.
f) Close the connection cover and check the proper connection, the state of
the o-ring seal and the proper installation of the latter, greasing it slightly.
Tighten the 4 screws crosswise.
g) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
CAUTION
CENTORK actuators are provided with thermoswitches mounted in the windings of the motor. The
protection of the motor is only achieved with a proper connection for these thermostats. Centork
guarantee for the motor is not valid if this connection is not properly done.
In the case of 1NO+1NC double microswitches, only the same potential can be connected through both
circuits. For different potentials, two double microswitches must be used.
1The cable glands are not supplied with the Standard version.
4. SWITCHES CONFIGURATION
The configuration of switches needs to be done with the selector in the OFF position.
The CENTRONIK has several switches to configure its operation mode.
CAUTION
This is a very sensible electronic device. Manipulation of setting switches should be made very carefully,
in a way that other electronic components are not damaged.
1- With the selector in the OFF position, take off the
front cover of the unit.
2- In the PCB, the setting switches are located as
indicated in the next figure
5.6. Remote indication outputs.
In this submenu, remote indication outputs are configured. The signal and the output can be both chosen.
The configuration of remote outputs in LOCAL mode is the same than the one programmed in REMOTE mode.
The output signals will always be normally open (NO) signals.
is displayed, then press .
choose between :
Valve Open Failure
Valve Closed Local/Remote
Torque tripped opening Indication for intermediate position
Torque tripped closing Position reached
Motortemperature Command signal failure
Phase failure Rest time
Torque tripped ESD (Emergency Shut Down) received
once chosen press to record the option selected
For remote outputs repeat the procedure previously described.
The factory default values for exits are
Adjust of span (this value will always be higher than the value selected for zero):
will be displayed, press and select the percentage of command signal that corresponds to span.
Press , the following step is to select the percentage of opening desired for the span, select between the
value selected for zero and . Both values are configured, as factory standard, to .
5.5. Zero and span, minimun and maximum command signal and split range setting.
In this submenu, the control input signal range is fitted to the valve stroke. This section is also useful for
programming the split range working mode.
is displayed, then press
Adjust of zero :
will be displayed, press and select the percentage of control input signal that corresponds to zero.
Press , the following step is to select the % of opening of the valve desired for the zero, select between
and . Both values are configured, as factory standard, to .
===
As standard. the CENTRONIK is supplied without relays. The output characteristic is 24 V DC /100
mA(max.load capacity). If relays are supplied, the outputs are potential free contacts.
==
Remote

Page 4 Centronik modulating duty users manual Centronik modulating duty users manual Page 9
3. ELECTRIC CONNECTION
CAUTION
When handling electric equipment, take into account the safety standards (EN 60204, Direc. 73/23/EEC).
Check that the type of current, voltage and frequency suits the actuator according to motor nameplate.
When dismounting the electric connection cover, we find, inside this cover, the electric connection
diagram for each actuator.
The IP67 degree of protection, IP68 (on request), is only guaranteed if the correct cable glands are used.
Make sure a proper ground (GND) connection of the unit is done.
CAUTION
Do not attempt to lever off the cover with a screw driver as this will damage the “O” ring seal.
The wiring scheme fixed in the cover is particular to each actuator and must not be interchanged with
any other actuator.
Types of connection :
2- Terminals connection :
a) Feed the cable(s) through the cable glands¹.
b) With a suitable screwdriver, connect the cables for the control signals
according to the electric connection diagram.
c) Connectthe 3 phases L1, L2,L3 to the connections 1,2and 3. Connect
the earth cable to the earth connection.
d) Onceyouhavecheckedthattheconnectionshavebeenproperlycarried
out, close the connection cover and check the proper connection, the
state of the o-ring seal and the proper installation of the latter, greasing
it slightly. Fasten the 4 screws crosswise.
e) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
1- Plug-socket connectors with screws:
a) Unscrew the attachment plate from the connection cover.
b) Feed the cable(s) through the cable glands¹.
c) With a suitable screwdriver, connect the cables for the control signals
according to the electric connection diagram.
d) Connectthe3 phases L1, L2,L3to the connections 1, 2,and3. Connect
the earth cable to the earth connection of the plug.
e) Once you have checked that the connections have been carried out
properly, screw the attachment plate back to the connection over
respecting the direction of the connectors.
f) Close the connection cover and check the proper connection, the state
of the o-ring seal and the proper installation of the latter, greasing it
slightly. Fasten the 4 screws crosswise.
g) Tighten cable glands to ensure enclosure IP67 (IP68 on request).
¹ The cable glands are not supplied with the Standard version.
The modeled curves are:
1 Isopercentage curve
2 Quick opening curve
3 Linear curve
4 Customized curve (example)
will be displayed, then press ,
choose between :
for linear curve
for isopercentage curve
for quick opening curve and
for customized opening curve.
For customized opening, 10 points of alignment ... are displayed, for each of them choose the
corresponding opening percentage between and .
In order to enter the values of the personalized curve, the user should have previously modelized the curve to
know to which opening percentage corresponds each step.
The curve configured as factory standard is .
5.9. ESD (Emergency Shut Down)
In this submenu, the operation of the actuator when receiving the ESD emergency signal, is configured. When
the signal is received, the CENTRONIK will ignore all the securities except the security selection made by the
user, the motor thermoswitches or the torque micro switches.
The goal for the actuator will be to reach the programmed emergency position.
will be displayed, then press .
choose between :
to considerer the thermoswitches or to considerer the torque microswitches.
Next choose between:
for actuator in open position.
for actuator in close position.
for "standstill" position.
ton open the valve up to the recorded proportion. Choose between and .
5.7. Rest time.
In this section, the user can configure the time, in seconds, the actuator will rest after the last stop ignoring any
notice neither from the input remote signal nor from the pushbuttons.
is displayed, choose between and . The value configured factory is .
5.8. Characterisation of the valve opening curve.
In this submenu, the opening curve of the valve is configured.

Page 10 Centronik modulating duty users manual
Close
pushbutton
DES pushbutton
LED L1
Red: The actuator has arrived to the OPEN position.
Red blinking: The actuator is running in the OPEN direction.
Yellow blinking: Failure, both FRC1 and FRA1 are switched.
LED L2
Yellow: Blinker failure stop.
Red: Overtemperature stop (TRM).
Red blinking: Overtemperature happened and has dissapeared.
LED L3
Green: The actuator has arrived to the CLOSE position.
Green blinking: The actuator is running in the CLOSE position.
Yellow blinking: Failure, bot FRC1 and FRA1 are switched.
LED L4
Red: Torque dependant stop in OPEN direction.
Green: Torque dependant stop in CLOSE direction.
Yellow blinking: Failure, Both FPC1 and FPA1 are switched.
LED L5
Green: Correct phase connection.
Red: Phase missing.
Yellow: Inverse phase connection.
"Down" pushbutton
This is the pushbutton used to move down through the menu in programming mode.
"Enter" pushbutton
This is the pushbutton used to select the desired option on the menu in programming
mode.
"Up" pushbutton
This is the pushbutton used to move up through the menu in programming mode.
Indicator display
This is the display used to communicate with the CENTRONIK.
The displaying corresponds to 99% and to 100%.
This is the pushbutton used to make the actuator run in the Close direction in LOCAL mode.
This is the pushbutton we will have to use to enable the actuator movement, after a torque
dependant stop, in the same direction it stopped. Note that the actuator will stop as soon as
the CENTRONIK detects shaft movement.
5.11. Autolearn
In this submenu, the CENTRONIK is allowed to check the overrun/ overtravel of the valve and, ignoring the
modulating bands, to make a more accurate positioning.
will be displayed, press
choose between to activate this option and to ignore it.
The factory standard configuration is .
5.12. Close tightly
In this submenu the ‘close tightly’ function is activated: if the command signal brings the actuator to a position
close to total closing, (being the value lower than 2% of the whole stroke) the actuator reachs automatically the
end of the stroke.
is displayed, press
choose between to activate this option and to ignore it. The standard configuration is .
If activating, choose between and in 0.5% steps.
5.13. Blinker
In this submenu the inclusion or not of the blinker signal in the actuator operation is decided.
will be displayed, press
choose between to activate this option and to ignore it.The standard configuration is .
5.10. Modulating bands.
In this submenu, the modulating bands are adjusted. There are two dead bands for each operation sense, the
outer dead band and the inner dead band. The outer dead band is the one out of which the actuator will start to
search the control input signal and the inner dead band is the one in which the actuator will consider that the
control input signal has been reached.
will be displayed, the press .
choose between for open direction and for close direction, press ,
in each of the cases it will be possible to choose between:
and for the inner dead band in 0.5% steps and between
and for the outer dead band in 0.5% steps.
Ifanyof the inner dead bandsisselectedata higher value than anyoftheouter dead bands, then theouterdead
bandwillautomatically be fixed at 1% higherthanthe inner dead band. As factorystandard,the inner dead band
is at 2% and the outer dead band is at 5%.
The ESD signal will only be received in the remote mode. The CENTRONIK will then cancel any operation that
itcould be doing. It is activated witha logic level “0”; in this casethis is done by joining the inputESD with the pin
number 19.
The factory standard configuration is and .
Centronik modulating duty users manual Page 3

Centronik modulating duty users manual Page 11Page 2 Centronik modulating duty users manual
1. ELECTRIC ACTUATORS MODULATING DUTY
Modulation in electric actuators consists in positioning the actuated element according to a control input signal.
This input signal can be a current signal (0/4-20 mA) or a voltage signal (0-10V.). The received input signal is
comparedwiththesignalreceivedfromtheelectronicpostiontransmitter,TPS. Once both signals are compared,
it is determined whether is higher, equal or lower than the other, and according to this the motor is operated in
the sense needed to reduce this difference.
2. CENTRONIK ELECTRIC ACTUATORS MODULATING DUTY DESCRIPTION.
The Centronik modulating duty is an electronic unit able to control any Centork electric actuator´s operation in
modulating duty.
The unit consists of several PCBs containing a microprocessor, so the unit should be handled very carefully.
The Centronik modulating duty has three main operating modes selectable by the front panel selector: LOCAL,
REMOTE and OFF.
In the OFF position, the actuator remains connected but does not work.
In the LOCAL mode, the Centronik modulating duty only follows the front panel pushbuttons operation, the
same as in the Centronik On/Off Duty. In the REMOTE mode, the operation is made via the remote inputs
received through the users connector, or via RS-485 serial line.
The CENTRONIK unit is part of a complete CENTORK ELECTRIC ACTUATOR. All the points stated in the
“Electric actuators installation and maintenance manual” should be followed.
Both “CENTRONIK users manual” and “Electric actuators installation and maintenance manual” are supplied
together.
Fig. 1
In the front panel (fig. 1), the user will find the following described items:
Open pushbutton
This is the pushbutton used to make the actuator run in the Open direction in LOCAL
mode.
Stop pushbutton
This is the button used to stop any Open/Close operation in LOCAL mode.
It will be also used to reset the unit after any failure.
5.16. Change of password.
Each time we go through this section, the CENTRONIK switches on L1, L2, L3, L4 and L5 in red colour.
will be displayed, press
choose between and . In order to confirm has to be pressed twice. If after the first time
or is pressed, the new password can be chosen again.
CAUTION Password changing, is a delicate operation. Write it down.
5.15. Data Logging.
In this submenu it is possible to know the progression of a set of operational data referring to the actuator along
its operating life.
is displayed and after pressing the values of the stored data are displayed.
In order to display the different data, place on the option to be read and after pressing the Centronik will
startto display the value(as an example, ifthe number of closingshave been 1.357, thecontrol will display “13”,
“57”, “ “, “13”, “57”, “ “, “13”, “57”, “ “,) until is pressed again; then the Centronik will display the next data to
be read. There will always be a blank space to mark the beggining of a new data.
Data available:
Nr. of openings by limit switching.
Nr. of openings by torque switching.
Nr. of closings by limit switching.
Nr. of closing by torque switching.
Total running hours.
Nr. of trippings of the motor thermoswitches.
Nr. of starts
All these data can be obtained through the serial line. For more information refer to "Centronik operation. Serial
line" brochure.
5.14. Control input signal and valve position setting.
Inorder to achieve a high overall accuracy, the maximum control inputignal and thevalve open position have to
be set together. Very important: the electronic position transmitter TPS should have been already adjusted
correctly according to the “ Electric Actuators Instalation and Maintenance Manual” in order to make a correct
control input signal setting.
Before making the calibration, the valve should be brought to the maximum opening position, therefore
the TPS should be supplying the maximum current.
will be displayed, press
on the display indicator a blinking value will appear, next press + simultaneously and the value will stop
blinking. Press to record the value into the memory and return to displaying .
Note: Non calibration of input signal, will cause malfunction of the actuator.

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INDEX
1-
2-
3-
4-
5-
6-
Page 12 Centronik modulating duty users manual
Electric actuators modulating duty
Centronik electric actuators modulating duty description
Electric connection
Switches configuration
Modulating parameters setting procedure
Modulating Duty Centronik operation
CAUTION
Electric actuators are high value devices. In order to prevent damage in their handling, setting and use,
it is essential to follow all the points in this manual.
The actuator is an electrical device, therefore you should take into account the EN 60204, Directive
73/23/ECC safety standars.
The centork electric actuators must be handled with care and caution.
Motor
Electrical connection
Centronik
Switching and signalling unit
Output
Manual operation
Centronik modulating duty users manual Page 1
2
2
4
5
6
12
6. MODULATING DUTY CENTRONIK OPERATION.
The selector being in LOCAL mode, the Modulating CENTRONIK will operate as a ON/OFF duty CENTRONIK.
To operate the actuator, use the front panel buttons OPEN, CLOSE, STOP an DES.
The selector being in REMOTE position, the CENTRONIK will operate on MODULATING duty.
The CENTRONIK can also be operated by a serial line. These are the communication´s characteristics:
Transmission speed: 9600 BPS
Character format: 1 start bit, 8 data bits, parity even and 1 stop bit.
For more information about the characteristic of the protocol used, such as message format and message
sequence, refer to "Centronik operation. Serial line" brochure.
The CENTRONIK software has a "movement detection" funtion. If during the next 6 seconds after the last order
noshaftmovementisdetectedtheunitwillstoptheoperation.Aftercorrectingtheproblem,theSTOPpushbutton
be pressed to reset the unit.
The CENTRONIK also incorporates a phase missing and an inverse phase connection detection system. Both
ofthem are indicated inthe front panel LEDs,and it automatically adaptsits operation to theorder of the phases
in such a way that the turning sense is correct.
Every CENTRONIK is provided with two main fuses. If needed, they should be changed as follows:
1- Unscrew the electrical connection cover.
2- Unscrew the correspondant fuseholder and change the fuse. Standard 20 x 5 mm 500 mA normal blow
fuses are used.
3- Screw both fuseholder and electrical connection back. Check the proper connection, the state of the
oring seal and the proper instalation of the latter, greasing it slightly. Fasten the 4 screws crosswise.
4- Tighten cable glands to ensure enclosure IP67 (IP68 on request).
CAUTION Make sure a proper ground (GND) connection og the unit is done.
Page

V A L V E C O N T R O L
CENTRALAIR, S.A.
Portu Etxe, 23,25 - E 20018 SAN SEBASTIAN - Apdo. 735 - 20080 San Sebastián - Tfno.: 34 943 31 60 31- Fax : 34 943 21 76 75
Avda. Zumalacarregui, 50 - E 48006 BILBAO - Apdo. 1283 - 48080 Bilbao - Tfno.: 34 94 412 39 00 - Fax : 34 94 412 66 29
Provenza, 551- E 08026 BARCELONA Tfno.: 34 93 348 08 11 - Fax : 34 93 456 00 20
Yeserías, 41- E 28005 MADRID Tfno.: 34 91 474 62 22 - Fax : 34 91 474 12 93
E-mail [email protected]
http://www.centork.com
AUTOMAIR NORTE LDA.
Rua Marqués de Soveral, 2-A - P1700 LISBOA - Tfno.: 351 (01) 848 93 96 - Fax : 351 (01) 848 92 02
Rua Luis de Campos, 42 - P4520 FEIRA - Tfno.: 351 (056) 37 31 10 - Fax : 351 (056) 37 31 11
V A L V E C O N T R O L
CENTRONIK MODULATING DUTY
USERS MANUAL
1497.MANE1412X001 Rev.12/99

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