Seko AKTUA ATR-05S Manual

SA00136004 Rev. 2.1
EN
DE
ES
FR
IT
AKTUA ATR-05S
AKTUA ATR-05X
OPERATION & MAINTENANCE MANUAL
BETRIEBS UND MANUTENTIONHANDBUCH
MANUAL DE SERVICIO E MANUTENCION
MANUEL D’EMPLOY ET MANUTENTION
MANUALE DI USO E MANUTENZIONE

SA00136004 Rev. 2.1 1
Introduction
Thank you for choosing our product. We would like to give you some information about the correct installation and use of you
r
SEKO
apparatus.
We recommend reading the instructions carefully before installing and starting the apparatus;
SEKO
cannot be held responsible for
any damage caused by failure to observe the contents of this manual.
The information in this manual may be modified without any prior notice and is not binding for SEKO
.
Where you see the symbol , some essential information is provided for the correct installation and use of your SEKO
apparatus in a potentially explosive environment. If this information is not followed, it may lead to serious risks for the safety of
people and the environment.
CONTENTS
1 DESCRIPTION
2
SAFETY INSTRU
CTIONS
2.1
Residual risks
3
IDENTIFICATION PLATE
4
MAIN DIMENSIONS
5
TECHNICAL FEATURES
5.1
Torque/speed curve
5.2
Power Supply
5.3
Inputs
5.4
Outputs
6 MOVEMENT
7
INSTALLATION
7.1
Mechanical installation
7.2
Electrical installation
7.2.1 General information
7.2.2 External wiring
7.2.3 Internal wiring
8 PROGRAMMING
8.1
Programming menu
8.2
Programming functions key
8.3
Calibration at start-up
8.4
Calibration during operation
8.5
Unblock condition during calibration
8.6
Managing keys during calibration
8.7
Setting error during calibration
9 OPERATION
9.1
Operation modes
9.2
Optional actuator activation conditions
9.3
Deadband
9.4
Splitting the adjustment field
9.5
Adjustment of motor parameters
9.6
Password modification
10
VISUALIZATIONS
10.1 Normal visualization
10.2 Visualization of the input signal
10.3 Visualization of alarms
10.4 Troubleshooting
11 MAINTENANCE
12
STORAGE

SA00136004 Rev. 2.1 2
1) DESCRIPTION
Fig.1: Description
Pos. Description
1 Stepper moto
r
2 Reduction unit
3Outputshaft
4 Feedback shaft
5 Position senso
r
6 Visual indicato
r
7 Electronics
8 Emergency shaft
9 Protection cap
10
Rear case
11 Support flange
12 Front case
The SEKO actuator ATR-05 is an electromechanical appliance that can receive a command signal and make an output shaft
rotate, by a proportional number of revolutions to the command received, based on an electronically pre-programmed full scale.
The actuator is moved by
an electronically controlled stepper motor (pos.1) which, through a reduction unit (pos.2), moves the
output shaft (pos.3).
The output shaft (pos.3) is mechanically connected to a feedback shaft (pos.4) which reports the movement to an electronic
position sensor (pos.5) in order to allow maximum positioning precision; this system is also connected to a control indicator
(pos.6).
The control electronics (pos.7) integrated inside the actuator system can receive analogue and digital signals and guarantee
complete control of the machine, handling the speed, torque, direction, stroke limits, deadband, the input of analogue and digital
signals and the output of an alarm relay.
In the event of malfunctioning or lack of power supply, the system can be operated manually by using an Allen key no. 6 on the
emergency actuation device (pos.8); this shaft is normally protected by a cap (pos.9). In the ATEX version the emergency
actuator shaft is not normally engaged on the motor shaft, but a spring keeps it detached: therefore it must be pushed in order
to perform the actuation.
A
ll the electric and electronic components of the actuator are contained between the rear case (pos.10) and the support flange
(pos.11); the reducing unit and the mechanical feedback system are contained between the front case (pos.12) and the support
flange (pos.11).
The gaskets placed between these cases and the support flange guarantee a level of protection IP66.
Hearting Boss

SA00136004 Rev. 2.1 3
On the ATEX certified actuator, the rear case and the flange form the flameproof
case, inside which there is a cut
-out heater,
which guarantees the operation of the system at the correct temperatures and prevents the formation of condensate inside it;
the heater can also be assembled on the standard version upon request.
2) SAFETY INSTRUCTIONS
Description of the symbols used:
DANGER - WARNING
Îgeneral indication of danger and relative indications for all operating
conditions
DANGER - WARNING
Îadditional danger indications and relative instructions, applicable to
actuators that comply with the “ATEX” 94/4/EC directive
When working on the actuator scrupulously follow these indications:
xObserve European and local safety laws.
x
A
ll operations on the actuator must be carried out by qualified staff, after reading this manual.
xOperators must use suitable personal protection equipment as provided for by the laws in force.
xKeep a first aid kit handy.
xMake sure that the electric pump motor is disconnected from the power supply and/or cannot be started by accident.
xDo not work alone.
This manual is an integral part of the supply and must be kept with the product throughout its entire operative lifetime and must
always be available for consultation.
Should this manual and/or attached documentation get lost, ask the manufacturer immediately for another copy; in the
meantime do not carry out any operations on the machine.
The customer assumes all the risks for any damage caused by the actuator suddenly stopping, whether this is due to incorrect
installation or to a fault or the intervention of a safety system; the customer must therefore check and consider the risks
connected with any sudden stopping of the actuator beforehand.
2.1
Residual risks
The residual risks are reduced to a minimum thanks to the design features.
A
lways follow the instructions and warnings in this manual.
The risk of start up due to electrostatic discharge resulting from accumulation
of dust on the external surface of the actuator depends on the insulating
thickness of the protective layer of the earthed surface of the frame and is
minimised with a layer of paint less than 200ȝm.
Do not add any more protection layers other than those provided.
If it is necessary to restore the external protective layer, completely remove the
old one and ensure that the new layer does not exceed 150ȝm measured
when dry.

SA00136004 Rev. 2.1 4
3) IDENTIFICATION PLATE
The plate is an integral part of the actuator and must never be removed.
A
ctual dimensions: 35x53 mm and 35x80 mm
Figure 2: Standard and ATEX label
With reference to Fig.2, the following information is shown on the plate:
Pos. Description
1 Type
2 Serial numbe
r
3 Production year
4
A
TEX certificate number
4)
MAIN DIMENSIONS
Figure 3: Overall main dimensions

SA00136004 Rev. 2.1 5
5) TECHNICAL FEATURES
MECHANICAL DATA
Maximum revolutions 26
M
ax
i
mum torqu
e
5
Nm
M
ax
i
mum spee
d
10 revolutions
/
mi
n
P
rec
i
s
i
o
n
2
1
°
a
b
so
l
ut
e
#
0.3
%f
.s
.
M
as
s
stan
d
ar
d
9
kg
ATEX
11
k
g
O
perating temperatur
e
stan
d
ar
d
0
°
y
4
0
°C
U
pon request
:
-
2
0
°
y
60
°C
ATEX
-
4
0
°
y
70
°C
P
rotect
i
on rat
i
n
g
IP6
6
ATEX
classi
f
icatio
n
II 2
G
D Ex d IIB+H
2
T6 tD A21 IP66 T 85
°C
ELE
C
TRI
C
AL DAT
A
N
om
i
na
l
powe
r
23
W
M
a
i
n power supp
ly
110
÷
230
r
10
%
V
ac
,
monop
h
as
e
S
econdar
y
power suppl
y
opt
i
ona
l
110
÷
230
r
10
%
V
ac
,
mon
op
h
as
e
A
ux
ili
ar
y
power supp
ly
opt
i
ona
l
2
4Vdc
A
na
l
ogue
i
nput s
i
gna
l
stan
d
ar
d
4
÷
2
0m
A
r
1
%
setta
ble
:
20
÷
4
m
A
r
1
%
0
y
10
V
r
1
%
Digi
ta
li
nput s
ig
na
l
0÷5 V i
n
f
requenc
y
0.004÷50 H
z
D
ea
db
an
d
a
dj
usta
ble
S
td 2
%
D
i
g
ital si
g
nal
(
remote switch
)
D
r
y
contact
(
0÷5
)
Vd
c
A
ctuator consent s
ig
na
l
110
÷
230
r
10
%
V
a
c
A
na
l
o
g
ue output s
ig
na
l
li
t permanent
ly
4
÷
2
0mA 1
%f
.s
.
500
O
h
m
Mani
f
old output ope
n
2
4Vdc;5
0
mA ma
x
E
ff
ective work cycl
e
U
n
li
m
i
te
d
mo
d
u
l
at
i
on cyc
le
CONNECTIONS
Wire connection standard 2 fori ¾” NPT ANSI/ASME B1.20.1 (NPT)
Upon request ½” NPT ANSI/ASME B1.20.1 (NPT)
½” & ¾” ISO228 (G)
M16x1.5 ISO965-1 & ISO965-3
(
Mx1.5
)
M20x1.5 I
SO
96
5
-
1
&
I
SO
96
5
-
3
(
Mx
1
.
5
)
L
ow vo
l
ta
g
eterm
i
na
lb
oar
d
extractable with pitch o
f
5.08m
m
P
ower term
i
na
lb
oar
d
P
itch 7.62mm
f
or wires o
f
diameter up to AV
G
12
(
1.5 m
m
2
)

SA00136004 Rev. 2.1 6
5.1
Torque/speed curve
Figure 4: Characteristic curve
Fig.4 shows the values of torque available to the actuator output shaft at the various
r
otation speeds.
A
s indicated in 8.2, the value of the torque supplied to the actuator can be set by the user by changing the parameter of
the programming Dmenu.
Changing the parameter Wwill vary the torque supplied to the actuator and its rotation speed.
The following table shows the torque values according to the Wvalues that can be selected (default values in bold):
7

8910 11 12 13 14 15 16 17
18
19
20
21
22 23 24 25 26 27 28 29 30
Torque
2.5
0
2.9
5
3.3
4
3.7
3
4.0
0
4.0
5
4.4
1
4.6
0
4.7
0
4.9
2
5.0
1
5.1
0
5.2
1
5.3
3
5.4
8
5.5
3
5.6
2
5.7
2
5.8
2
5.8
6
5.9
3
6.0
0
6.0
5

SA00136004 Rev. 2.1 7
5.2
Power Supply
The apparatus can be powered in three different ways.
xMain power supply 100-240 Vac.
xSecondary power supply 100-240 Vac.
x
A
uxiliary power supply 24Vdc protected not insulated.
The power supplies can all be connected to the apparatus.
The power supplies can all be active at the same time; based on the power supplies present, the system behaves as
follows:
Main
Secondary
A
uxiliary Functionality
NO NO NO The apparatus is switched off
Y
ES NO NO The apparatus can use all the available functions
NO
Y
ES NO The apparatus can use all the available functions
Y
ES
Y
ES NO The apparatus can use all the available functions
NO NO
Y
ES Only the two LEDs are powered and the output repetition circuitry 4/20 mA
Y
ES NO
Y
ES The apparatus can use all the available functions
NO
Y
ES
Y
ES The apparatus can use all the available functions
Y
ES
Y
ES
Y
ES The apparatus can use all the available functions
5.3
Inputs
The apparatus can handle the following inputs.

A
ctuator consent signal 230 Vac (opto-isolated)
Non opto-isolated digital signal (dry contact), to which a panel switch can be connected to activate or deactivate
the actuator independently.

A
nalogue input signal 4
–
20 mA / 20 - 4 mA with adjustable limits through programming.

A
nalogue input signal 0-10 V with adjustable limits through programming.
Digital input signal 0-5V in frequency with settable
r
ange 0.004
-
50 Hz.
A
s for the digital input, the frequency set through programming is that which corresponds 100%.
For Example: If the frequency is set at 50 Hz, it implies that the system can understand variations in the input signal
frequency from 0.5 Hz (1%) to 50 Hz (100%).
For Example: If 1 Hz is set, it implies that the system can understand variations in the input frequency
signal from 10 mHz (1%) to 1 Hz (100%).
This way of managing the input frequency is compatible with the most common pulse emi
tter water meters.
.Max. frequency
pulse/l
l/pulse
size Qn 41 25 50 100
250
500 1.000
1/2 1,5 20,42
3/4 2,5 30,69
13,5 40,97
11/4 561,39
11/2 10 11 2,78
215 17 4,17 0,17 0,08
0,04
0,02 0,008 0,004
21/2 25 0,28 0,14
0,07
0,03 0,014 0,007
340 0,44 0,22
0,11
0,04 0,022 0,011
460 0,67 0,33
0,17
0,07 0,033 0,017
6150 1,67 0,83
0,42
0,17 0,083 0,042

SA00136004 Rev. 2.1 8
The size column shows the dimensions of the mete
r
in inches
Qn indicates m3/h.
The other parameters indicate 100% of the frequency of the pulses provided; in practice, they represent the parameters
(recommended to the customer) to be set when programming.
5.4
Outputs
The apparatus can handle the following outputs.
x
A
nalogue signal 4/20 mA on load of 500 ȍ.
xOpto-isolated manifold output open and protected against inverse voltages (Max 50 mA).
x24 Vdc, for driving the external alarm relay
6) MOVEMENT
Due to the contained weight also in the flameproof version, the actuator can be easily moved by hand by a single operator.
Take care not to bang or strike the output shaft (fig.1, pos.3).
In the standard version, do not bang, strike or put any weight on the rear plastic cover (fig.1, pos.10) so as not to damage it and
lose the IP66 protection.
7)
INSTALLATION
7.1
Mechan
ical installation
Figure 5: Coupling dimensions
The dimensions of the coupling flange and the output shaft of the actuator are shown in fig.5.
The fastening can be made using four M10x1.5 screws or four bolts 6; the nuts and bolts must comply with ISO898/1
and EN20989 cl. 8.8

SA00136004 Rev. 2.1 9
7.2
Electrical installation
7.2.1 General information
In order to minimise the risks of accidents during installation, carefully follow the safety instructions shown in paragraph 2
and also:
xBefore carrying out any intervention on the actuator make sure that it is not connected to the power supply and/or
cannot be started accidentally.
xIf the actuator is connected to any electromechanical equipment, such as a pump, check that this is not connected
and/or could not be started accidentally.
xProtect the actuator by installing a contactor with a suitable heat protection degree for the absorbed current.
xThe wiring must be connected by qualified staff in compliance with the relevant regulations.
xThe wiring must be carried out in compliance with the indications in fig.6.
xFor the signals it is recommended to use shielded wires such as LI-YCI with 14 poles diameter from 9 to 18 mm2with
minimum section of 0.34mm2.
xFor the power supply a reinforced wire, such as FG7ORAR 7 with 7 poles from 9 to 18 mm2minimum section 1.5
mm2is recommended (especially for the ATEX version).
x
A
lways connect the actuator’s earthing.
xIt is the user’s responsibility to install an emergency switch.
On the power supply line install a protection against overcharging or a temperature sensor.
Check that the voltage, the frequency and the electric power supply power comply with the
motor plate.
In dangerous areas observe the European or local provisions and specific laws
The case only ensures suitable flameproof protection if it is intact and if all the screws are
correctly tightened.
Before closing the actuator case grease the flat contact surfaces between the rear case and
the flange with a thin layer of Vaseline grease.
7.2.2 External wiring
The wiring must be connected by qualified staff in compliance with the relevant regulations. The effective wiring must be
carried out based on the documentation supplied with the actuator.
The wires must be connected to the actuator considering that there are two holes for which in the standard model two PGs
with NPT 3/4" thread and in the ATEX model two cable clamps with NPR 3/4" thread are provided.
For the signals it is recommended to use shielded wires such as LI-YCI with 14 poles diameter from 9 to 18 mm2with
minimum section of 0.34mm2.
Failure to respect the safety regulations and warnings contained in this manual may lead
to serious damage to the health of the people exposed.
The motors and electrical components must be connected in accordance with the local
laws and only by qualified staff.
The installer must have full mastery of the legislation in force and must be familiar with
the ATEX classification in the area of installation, as well as the risks deriving from a
potentially explosive atmosphere in the environment, with particular regard to the dangers
of explosion and fire, so that the relative cautions and protections can be adopted.
The electric cables used must conform to CEN
ELEC EN 60079
-14.
The flameproof protection is only guaranteed with the case intact and with the cable clamps
according to standards in force and correctly assembled: before removing the rear case (fig. 1
pos. 10) or a cable clamp, make sure that you are not in a classified area or completely
disconnect both the power and control electric power supply.

SA00136004 Rev. 2.1 10
For the power supply a reinforced wire, such as FG7ORAR 7 with 7 poles from 9 to 18 mm2minimum section 1.5 mm2is
recommended (especially for the ATEX version).
7.2.3 Internal wiring
Fig.6: Terminal Board
Figure 6 represents the connection diagram of the actuator; the same diagram is shown on a special sticker on the
protection screen inside the case. The table below shows the type of signal and the relative connection.
Signal Type of signal Connecto
r
Type
Main power supply 100 - 240 Vac 1-2-3 Input
Secondary power supply 100 - 240 Vac 4-5-6 Input
Vaux power supply 24 Vdc 7-8 Input
A
nalogue output signal 4/20 mA 500 Ohm 9-10 Output
A
nalogue input signal 4 - 20mA 20 - 4 mA 11-12 Input
A
nalogue input signal 0 -10V 13-14 Input
Digital input signal 0-5 V in frequency 0.004 - 50 Hz 15-16 Input
Digital signal (remote switch) Dry contact (0-5)Vdc 17-18 Input
Manifold output open 24 Vdc 50mA max 19-20 Output
A
ctuator consent signal 100-240Vac 21-22 Input
Digital Communication Signal (not
present) 0-5 V 23-24-25 Two- directional

SA00136004 Rev. 2.1 11
8) PROGRAMMING
The actuator has a 4-digit, 7-segment display.
The calibration can be carried out when it is switched on and also during operation, forcing the input by pressing the Cal key.
8.1
Programming menu
Press the ENTER key for three seconds to enter the programming menu.
The following indications are useful for reading the diagram:
1) Use the UP-DOWN keys to scroll through the main menu;
2) Use the ENTER key to access the submenus;
3) Normally, use the ENTER key to change the field (the field flashes) and the UP DOWN keys to make the modification;
to modify the password, so as not to waste time during setting, the DOWN key moves the digit to be modified and the
UP key makes the modification;
to modify the motor parameters (menu 7) press ENTER to enter the submenu and then scroll through by pressing the
UP DOWN keys;
4) Press the ESC key from any position to return to the previous menu level without accepting the modification;
5) Press the ENTER key from any position to return to the previous menu level and accept the modification;
6) Press the ESC key when you are in the main menu and SAVE will be displayed; press ENTER to exit the
programming session and save all the modifications made.
7) Press the ESC key when you are in the main menu and SAVE will be displayed; press UP-DOWN and ESC will be
displayed; press ENTER to exit the programming session without saving the modifications made.
It is possible to reload the default parameters whenever the customer wants.
The procedure for this operation is as follows:
Switch on the system by keeping the UP/DOWN keys pressed at the same time until the following appears:
, Q ,W
A
fter a few seconds the following appears:
Q R 
If this operation is confirmed using ENTER, the default parameters will not be loaded and the system will return to its
normal operation.
Whereas, you can use the UP and DOWN keys to choose
< ( V 
and if you confirm using ENTER the default parameters shown in paragraph 8.2 are loaded.

SA00136004 Rev. 2.1 12
Figure 7: Programming menu diagram
Enter Password

SA00136004 Rev. 2.1 13
8.2
Programming functions key
Password input request: you cannot access the following menus without entering the password
1. Operating mode setting:
$) Setting 4
–
20 mA 20 - 4 mA
Upper limit H (High)
Lower l (low)
[default is 4
–
20 mA]
%) Setting upper and lower limit of the input signal 0-10 V;
Upper limit H (High)
Lower l (low)
[default is 0
–
10 V]
&) Setting the signal in frequency 0.004-50 Hz;
[default is 30 Hz]
') Manual mode setting
By default the mode is set in mA (menu $)
2. Percentage setting of the stroke splitting function 20-100%.
By default it is set to 100% (3)
3. Switch setting No(Normally open) Nc (Normally closed).
By default it is set to Normally Open (12)
4. Setting deadband 1-10%.
By default it is set to 2% (3)
5. Calibration authorisation for the final user (ON authorised / OFF = disabled)
By default it is enabled (&2Q)
6. Enabling the trigger (consent) external (ON = enabled / OFF = disabled)
Bydefaultitisdisabled(W2))
7. Setting the motor parameters:
$) Torque setting (8-30).
By default it is set to 10 (W)
%) Setting TimeOut due to unreached position (1-8 minutes)
By default it is set to 8 (P)
&) setting torque modulation parameter (0-4)
By default it is set to 2 ()
') setting end positioning approach step (1-99)
By default it is set to 1 ()
8. Change Password (0000-9999)
By default it is set to 0000 ()
8.3
Calibration at start-up
A
t start-up if the system has not been calibrated, it automatically enters calibration mode.
The calibration procedure is made up of two steps called CAL1 (electronic step) and CAL2 (mechanical step).
A
t start-up the review is displayed:
U , 
A
nd straight after, flashing:
& $ / 
A
fter a few seconds the menu Step 1 point 1 appears:
, S 

SA00136004 Rev. 2.1 14
A
t this point calibration has started. Rotate the actuator manually until 100% is reached, using the UP and DOWN keys,
and as soon as 100% is intercepted, press the Enter key. The display will show:
I P H P
(First MEM) flashing and after a few seconds the following will appear on the display (Step 1 Point 2):
 S 
Rotate the actuator until the desired 0% is reached, still using the UP and DOWN keys and then press the Enter key. The
display will show:
V P H P
(Second MEM) and then the following appears (Calibration step 2):
& $ / 
and then (Step 2 Point 1):
  S 
Confirm the 0% position (if necessary correct it using the UP and DOWN keys) and then press the Enter key. In this way
0% is stored and the following appears:
I P H P
(First MEM) flashing and then straight after, still flashing, the maximum number of revolutions available.
For Example:
  
A
t this point the operator can set the number of revolutions necessary for the specific application, using the DOWN key
and then the Enter key. The display shows the current position (zero):
  
Then straight after, the motor is started in order to reach the maximum number of revolutions set; during the rotation the
position in revolutions is shown. Once the maximum number of revolutions set has been reached, still according to the
example, the following should appear:
 
Press the Enter and the following appears in succession:
V P H P
and:
& H Q G
(Calib
r
ation END) and operating mode begins. The display will show the position as a percentage of the number of
revolutions set and therefore the following will appear:
   
which indicates that the system is at 100%.
8.4
Calibration during operation
It is possible to force calibration to start while the actuator is operating, by pressing the CAL key for a while and proceeding
according to point 8.3 starting from Step1:
 S 
Should you decide to interrupt the calibration process during either of the two
intermediate steps CAL1 or CAL2, the system automatically returns to calibration.

SA00136004 Rev. 2.1 15
8.5
Unblock condition during calibration
During calibration the system blocks automatically should the rotation set by the operator exceed the physical limits of the
system. Then the message (Extra STRoke) appears:
H  W U
The operator can perform the unblock operation by pressing the Enter key and (UNBlocked) appears.
X Q E O
A
nd at this point the operator can manually move the actuator using the UP/DOWN keys until it returns into the correct
operating field.
8.6
Managing keys during calibration
When
the actuator is stopped, pressing the keys has the following effect:
The Esc key resets the calibration.
The Ente
r
key confirms the calibration point (0% or 100%).
The Cal key has no effect.
The Up/Down keys are used for moving the actuator. If one of the two keys is pressed for at least three seconds,
the actuator starts and proceeds in automatic mode until the physical limits of the system are reached; to stop it
first, press any key.
8.7
Setting error during calibration
Should the operator have the two calibration points too close by mistake (either 0% or 100%) or even in the same point,
the actuator will display the following error message:
HUU&
Pressing the CAL key will reset the system, making it return automatically to point 1 of the calibration.
The following will appear:
& D / 
(see 8.3)
9) OPERATION
9.1
Operation modes
The position of the actuator is expressed as a percentage; this can be modified either through the input signal (Remote
Mode) or manually (Manual Mode).
In Remote Mode the system moves based on the signals (mA, V or Frequency). The range and the type of signal to be
considered are set during programming (menu 1ĺPHQX$
,menu
E
, menu
&); the operation of the actuator will only be
connected to the signal relative to the selected operating mode; the other signals will be ignored.
The system allows signals to be acquired with 1% variation, it displays 1% adjustment and performs adjustments with a
precision of more than 0.4% and an absolute maximum error of 3°.
If the operator uses the external spanner for manual adjustment while the system is in this mode, the actuator opposes a
resistant torque and, when the manual adjustment finishes, the system automatically returns to the position corresponding
to the currently selected input signal.
In Manual Mode if you press the ESC key or the UP/DOWN keys at the same time, it is possible to enable the modification
of the percentage (the display flashes); if the actuator was moving, this operation blocks its movement.
By using the UP/DOWN keys it is possible to select the desired percentage; when the ENTER key is pressed, the actuator
starts to move in order to reach the selected percentage. The visualization of the display in this step is shown in chapter
10. In Manual Mode, all the input signals are ignored.
A
lternatively, after setting the Manual Mode by pressing the keys, it is possible to adjust the stroke manually using the
relevant spanner; in this case the operator can move the actuator freely.
For both modes, regardless of the input signal, the output signal 4/20 mA externally repeats the position effectively reached
by the actuator.

SA00136004 Rev. 2.1 16
There is an output on the apparatus to allow an externally powered relay to be driven, which is triggered in alarm
conditions.
In the event of lack of power supply it is possible to adjust the stroke manually based on the indication provided by the
mechanical vernier index.
9.2
Optional actuator activation conditions
When the actuator is powered, it is possible to operate it using a panel switch, with normally closed or normally open logic,
which can be set during programming using the menu 3 and/or through an opto-isolated consent 100-240 Vac, which can
be set during programming using the menu 6. These settings are only present in automatic mode.
Therefore according to the programming it is possible to operate the actuator with the following signal combinations:
Activation of Remote Switch Operating Logic
Remote On Enable Plc On
Remote On
Enable Plc OFF
Remote Off
Enable Plc OFF
Remote Off Enable Plc On
If, based on the previous settings, the apparatus is blocked, Rappears flashing, while the percentage continues to be
displayed normally:
R  2 
9.3
Deadband
This setting determines the sensitivity of the actuator; in practice, the actuator only immediately takes into consideration
input signal variations if they involve a variation of its position by a value greater than the deadband set; inside the
deadband, the actuator is insensitive for a certain amount of time to small input variations and its position remains stable.
The deadband mechanism automatically envisages internally a settling time for the input signals of 5 seconds; this means
that if the input signal is maintained at a certain value for over 5 seconds, even if this falls within the deadband, the
actuator will take it into consideration and will pe
r
form the relative movement.
The deadband is set by default to ±2% and can be adjusted from ±1% to ±10% by programming; the settling time for the
signals cannot be modified, and is fixed at 5 seconds.
This setting is only present in automatic mode.
For Exam
ple: If a deadband of ±5% is set and you are at 50%, the system is not sensitive for 5 seconds to variations in the
field from 46% to 54%. If the input signal stays stable for more than 5 seconds at a certain value, even if this is included in
the deadband, the actuator carries out the requested movement anyway.
9.4
Splitting the adjustment field
It is possible to split the adjustment field so that the position variations determined by the input signals only affect a
percentage of the entire stroke of the actuator.
If, for example, we suppose that the input signals impose an adjustment of the system at 100%, by setting the splitting to
50%, the system will effectively go to 50% of the stroke and not to 100% (100% of 50%).
If the system is adjusted to 80% and 60% splitting is set, the actuator will go to 48% (80% of 60%).
When splitting is set, the 4/20 mA repetition signal will bring back the effective adjustment position. For example, if the
system is taken to 50% of the stroke due to a splitting setting, regardless of the adjustment percentage value, the output
will be settled on the value 12mA (50% on range 4-20mA).
9.5
Adjustment of motor parameters
Torque adjustment
It is possible to vary the torque from the programming menu in the range 8-30.
The correspondence of these parameters to the speed in rpm is connected to the data shown in the relevant
Torque/Speed curves. A higher speed but a lower torque corresponds to the value 8, and vice versa, a lower speed but a
higher torque corresponds to the value 30.
Time Out parameter for unreached alarm position
It is possible to modify the Time Out parameter from 1 to 8 minutes, after which if the actuator has not reached its
envisaged position, the alarm is triggered.

SA00136004 Rev. 2.1 17
Torque modulation paramete
r
It is possible to adjust a parameter that modulates the torque. This parameter can have a value from 0 to 4, where 0 means
disabled. As this parameter increases the apparatus changes from smooth behaviour to strong behaviour.
End positioning approach step parameter.
It is possible to set a parameter that indicates the end approach step that is indicating how much more quickly the
envisaged position will be reached. The parameter can be adjusted in the range 1-99. This parameter should be set based
on the total number of revolutions requested during adjustment and the particular installation requirements.
9.6
Password Modification
It is possible to vary the password in the range 0
–
9999.
10)
VISUALIZATIONS
10.1 Normal visualization
In normal operation, the seven segment display shows the current position of the actuator as a percentage; for example,
100%.


  
In order to remind the operator that the apparatus is in manual mode, a point appears on the fourth digit to the right of the
display (for example):


  
The green LED shows permanently lit green light if one or more power supplies are present.
If the apparatus is only powered by the Vaux 24 Vdc, the display is switched off and the green LED is flashing (only the
repetition circuitry 4-20mA is powered).
10.2 Visualization of the input signal
It is possible for the operator, during normal operation, to press the UP key and see the value of the input signal that the
actuator has been programmed to consider. The value is indicated with a decimal point (mA, V, frequency expressed in
Hz), but the unit of measurement is not shown; should the upper or lower visualization limits be exceeded the value on the
display flashes.
E.g.: 12.1 mA
 .
E.g.: 9.1 V
 .
E.g.: 10mH = 0.01 Hz
. 
E.g.: 100mH = 0.1 Hz
 .
E.g.: 10 Hz
  
You can return to normal visualization, by waiting five seconds or pressing the ESC key.

SA00136004 Rev. 2.1 18
10.3 Visualization of alarms
The system can visualize four types of alarms. A permanently lit green LED or red flashing LED is shown for all the alarms.
The four types of alarms and relative visualizations are as follows:
1)
A
larm due to exceeding the maximum number of revolutions: This is generated if the position of the actuator exceeds
the minimum or maximum limits set during calibration.
$ O P
This alarm blocks the motor; it is reset as soon as a new percentage is set, manually or according to the input signals.
2)
A
larm due to exceeding the maximum positioning time: Every time the control signal varies, if the system cannot
reach the new position within 8 minutes, this alarm is triggered:
$ O P
This alarm blocks the motor; it is reset as soon as a new percentage is set, manually or according to the input signals.
3)
A
larm due to exceeding the maximum current: This is generated when absorptions are detected inside the apparatus
that exceed the envisaged thresholds within the system.
$ O P
This alarm blocks the motor; it is reset by switching the apparatus off and then on again.
4)
A
larm due to lack of signal: If the system no longer receives the input signal, this alarm is triggered and the actuator
moves to 0% position.
$ O P
If the system is set to take into consideration mA or V signals, the alarm is triggered if the active signal is absent for
more than 30 seconds.
If the system is set in frequency, the alarm is triggered if pulses are not received for over 120 times the period
corresponding to the frequency set during programming. For example, if the frequency is set to 50Hz, the alarm is
triggered if the signal is absent for over 2.4 seconds (which corresponds to a signal with a frequency of one hundredth
of the set frequency, increased by 20%).
If you enter programming mode in the presence of an alarm, the
r
ed LED continues to
flash to show that the alarm condition remains.

SA00136004 Rev. 2.1 19
10.4 Troubleshooting
Problem Reason Action
The system does not actuate as
the input signal varies mA, V,
Freq
Possible wiring erro
r
Check that the wires conform to
indications in 7.2.3.
mA, V, Freq programming setting erro
r
A
ccess the programming menu as
indicated in the relevant section.
Error in the input p
r
ogramming settings:
Consent signal and
Digital signal 0-5 V
Check combinations in the section:
Actuator movement conditions.
Presence of alarm ALM1.
Motor Block.
A
larm due to exceeding the maximum
number of revolutions.
If you are in manual mode, bring
the
actuator back within the Extra Stroke
limits.
In automatic mode the system
automatically returns within the range and
reaches the position calculated in the
presence of the input signal.
Presence of alarm ALM2.
This alarm blocks the motor.
A
larm due to exceeding Time Out for
unreached position.
In this case check if there is a mechanical
problem.
Once the mechanics have been fixed and
if the boards are not damaged it is
possible to reset the alarm by setting a
new percentage, manually or through the
i
nput signals.
The alarm may be triggered even if the
apparatus is working correctly.
In fact, the operator may have set a lower
time than that required for completing the
whole stroke 0
-100%; therefore enter
programming and modify the relative
parameter (menu 7b).
Presence of alarm ALM3.
This alarm blocks the motor.
A
larm due to exceeding the maximum
current; if the system detects absorptions
within the system that exceed the
envisaged thresholds this alarm is
triggered.
Switch off the apparatus and check if there
is a mechanical problem.
Once the mechanics have been fixed and
if the boards are not damaged the alarm is
reset by switching the apparatus off and
then on again.
Presence of alarm ALM4.
This alarm does not block the
motor.
A
larm due to lack of signal; if the system
does not receive the input signal any
longer, this alarm is triggered.
Check the presence of the input signal by
pressing the Up key.