ascon W09 Operating Instructions Manual

W09

DIGITAL ELECTRONIC THERMO-

CONTROLLER WITH DEFROSTING

FUNCTION

OPERATING INSTRUCTIONS

Vr. 02 (ENG) - 04/12 - cod.: ISTR-MW09-ENG02

ASCON TECNOLOGIC S.r.l.

VIA INDIPENDENZA 56

27029 VIGEVANO (PV) ITALY

TEL.: [phone]
FAX: [phone]

http:\\www.ascontecnologic.com

e-mail: [e-mail]

FOREWORD

This manual contains the information
necessary for the product to be installed

correctly and also instructions for its
maintenance and use; we therefore recommend
that the utmost attention is paid to the following

instructions and to save it.
This document is the exclusive property of ASCON
TECNOLOGIC which forbids any reproduction and divulgation
, even in part, of the document, unless expressly authorized.
ASCONT ECNOLOGIC reserves the right to make any formal or
functional changes at any moment and without any notice.
Whenever a failure or a malfunction of the device may cause
dangerous situations for persons, thing or animals, please
remember that the plant has to be equipped with additional
devices which will guarantee safety.
ASCON TECNOLOGIC and its legal representatives do not
assume any responsibility for any damage to people, things or
animals deriving from violation, wrong or improper use or in
any case not in compliance with the instrument’s features.

INDEX

INSTRUMENT ORDERING CODE7.5

FUNCTIONAL DATA7.4

MECHANICAL DIMENSIONS AND MOUNTING7.3

MECHANICAL DATA7.2

ELECTRICAL DATA7.1

TECHNICAL DATA7

GUARANTEE AND REPAIRS6.3

CLEANING6.2

SIGNALLING6.1

PROBLEMS , MAINTENANCE AND GUARANTEE6

PROGRAMMABLE PARAMETERS TABLE5

PARAMETERS CONFIGURATION BY “A01”4.7

TEMPERATURE ALARMS4.6.1

ALARM FUNCTIONS4.6

DEFROST DISPLAY LOCK4.5.2

MANUAL DEFROST4.5.1

DEFROST CONTROL4.5

COMPRESSOR PROTECTION FUNCTION AND DELAY
AT POWER-ON

4.4

TEMPERATURE CONTROL4.3

MEASURING AND VISUALIZATION4.2

ON / STAND-BY FUNCTION4.1

FUNCTIONS4

ELECTRICAL WIRING DIAGRAM3.4

ELECTRICAL CONNECTIONS3.3

MECHANICAL MOUNTING3.2

PERMITTED USE3.1

INFORMATION ON INSTALLATION AND USE 3

KEYBOARD LOCK FUNCTION2.6

RESET PARAMETERS TO DEFAULT VALUE/LEVEL2.5

CUSTOMIZED MODE PARAMETER PROGRAMMING
(PARAMETERS PROGRAMMING LEVEL)

2.4

PARAMETER PROTECTION USING THE PASSWORD2.3

STANDARD MODE PARAMETERS PROGRAMMING 2.2

FAST PROGRAMMING OF SET POINT2.1

PROGRAMMING2

FRONT PANEL DESCRIPTION1.2

GENERAL DESCRIPTION1.1

INSTRUMENT DESCRIPTION1

1 - INSTRUMENT DESCRIPTION

1.1 - GENERAL DESCRIPTION

The model W09 is a digital electronic thermocontroller that is
typically used in cooling applications that have temperature control
with ON/OFF mode and defrosting control with intervals time by
stopping compressor.
The instrument has one relay output and one input for PTC or NTC
temperature probes, in addition can be equipped with an internal
buzzer that is the sound system for alarms.

1.2 - FRONT PANEL DESCRIPTION

10

8

3

1

9

6

4

7

2

5

1 - Key P : Used for setting the Set point (press and release) and
for programming the function parameters (hold pressed for 5 sec.)
In programming mode is used to enter in parameters edit mode
and confirm the values.
In programming mode it can be used together with the UP key to
change the programming level of the parameters.

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 1

When the keyboard is locked it can be used together with the UP
(hold pressed for 5 sec.) key to unlock the keyboard.
2 - Key DOWN : In programming mode is used for decreasing the
values to be set and for selecting the parameters.
3 - Key UP/DEFROST : In normal mode can be used to start/stop
manual defrosting (hold pressed for 5 sec.).
In programming mode is used for increasing the values to be set
and for selecting the parameters.
In programming mode can be used togetherwith key P to change
parameters level.
Pressed together with the key P for 5 sec. allow the keyboard
unlock
4 - Key U : Used (press and release) for visualising the instrument
variables (measured temperatures etc.) .
In programming mode can be used to come back in normal mode
(hold for 2 sec.).
It can also be programmed via the parameter “t.UF”
In normal mode and if par. “t.UF” = 4 it can be used to turning on
and off (stand-by) the device (hold pressed for 1 sec.)
5 - Led SET : In normal mode it serves to indicate when a key is
pressed.
In programming mode indicates the programming level of the
parameters.
6 - Led OUT - COOL : Indicates the output status (compressor or
temperature control device) when the istrument is programmed for
cooling operation; on (on), off (off) or inhibited (flashing).
7 - Led OUT - HEAT : Indicates the output status (compressor or
temperature control device) when the istrument is programmed for
heating operation; on (on), off (off) or inhibited (flashing).

8 - Led DEFROST : Indicates defrosting in progress (on)
9 - Led ALARM : Indicates the alarm status (on), off (off) and

silenced (flashing)

10 - Led Stand-By: Indicate the Stand-by status.

2 - PROGRAMMING

2.1 - FAST PROGRAMMING OF SET POINT

Press the key P then release it and the display will show “SP”
alternating with the set value.
To change it press the UP key to increase the value or DOWN to
decrease it.
These keys increase or decrease the value one digit at a time, but
if the button is pressed for more than one second the value
increase or decreases rapidly, and after two seconds pressed, the
speed increases even more to all the desired valued to be reached
rapidly.
When the desired value is set press the key P to exit from Set
Point programming mode.
Exiting the Set mode is achieved by pressing the P key or
automatically if no key is pressed for 10 seconds. After that time
the display returns to the normal function mode.

2.2 - STANDARD MODE PARAMETERS PROGRAMMING

To access the instrument’s function parameters when password
protection is disable, press the key P and keep it pressed for about
5 seconds, after which the display will visualised the code that
identifies the first parameter.
Using the UP and DOWN keys, the desired parameter can be
selected and pressing the P key, the display will alternately show
the parameter code and its setting that can be changed with the UP
and DOWN keys.
Once the desired value has been set, press the key P again: the
new value will be memorised and the display will show only the
code of the selected parameter.
Pressing the UP and DOWN keys, it is possible to select another
parameter and change it as described.
To exit the programming mode, do not press any key for about 30
seconds, or keep the U key pressed for 2 sec. until it exits the
programming mode.

2 sec.

H old for

Hold for

5 sec.

2.3 - PARAMETER PROTECTION USING THE PASSWORD

The instrument has a parameter protection function using a
password that can be personalised, through the “t.PP” parameter.
If one wishes to have this protection, set the password number
desired in the parameter “t.PP”.
When the protection is activate, press the P key to access the
parameters and keep it press for about 5 seconds, after which the
display will show “r.P” .
At this point press P, the display show “0”, using the UP and
DOWN keys, set the password number programmed and press
the key P.
If the password is correct, the display will visualise the code that
identifies the first parameter and it will be possible to program the
instrument in the same ways described in the previous section.
Protection using a password can be disabled by setting the
parameter “t.PP” = oF.

2 sec.

Hold for

5 sec.

Hold for

Note: If the Password gets lost, just swith off and on the instrument
supply, push P key during the initial test and keeping the key
pressed for 5 seconds.
In this way it’s possible to have access to all the parameters, verify
and modify the par. “t.PP”.

2.4 - CUSTOMIZED MODE PARAMETER PROGRAMMING
(PARAMETERS PROGRAMMING LEVEL)

The password protection hides all the configuration parameters
behind a factory set password to avoid unwanted changes being
made to the programming of the controller.
To make a parameter accessible without having to enter the
password when “t.PP” password protection is activate follows this
procedure.
Enter the programming using the Password “t.PP” and select the
parameter which is desired to be accessible with no password
protection.
Once the parameter has been selected, if the SET led is blinking,
this means that the parameter is programmable by entering the
password (it’s then “protected”) if it’s instead on, this means the
parameter is programmable without password (not protected).
If you want to change the accessibility of the parameter push P
key, keep it pressed and press together also the key UP.
The led SET will change its state indicating the new access level of
the parameter (on = not protected; blinking = protected by
password).
In case some parameters are not protected, when one tries to have
access at the programming, the display will show all the

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 2

parameters not protected and the par. “r.P” (through which will be
possible to have access to the “protected” parameters.)

5 sec.

Hold for

2 sec.

Hold for

2.5 - RESET PARAMETERS TO DEFAULT VALUE/LEVEL

The instrument allows the reset of the parameters to values
programmed in factory as default.
To restore to the values of default the parameters set the value -48
to “r.P” password request.
Once confirmed the password with the key P the display it shows
"---" for 2 sec. therefore the instrument effects the parameters reset

2.6 - KEYBOARD LOCK FUNCTION

On the instrument it’s possibile to lock completely the keyboard.
This function is particularly useful when the regulator is reachable
by the users and it’s desired to avoid any modification.
To activate the keyboard lock it’s enough program the par. “t.Lo”
to a different value to oF.
The value program to this parameter it is the time of inactivity of the
keys afterwhich the keyboard will be locked.
Insofar not pressing any key for the time "t.Lo" the instrument
automatically disable the normal functions of the keys.
When the keyboard is lock, if any of the key is pushed, on the
display will appear “Ln” to indicate the active lock.
To unlock the keyboard it’s enough to contemporarily push key P
and UP and keep them pushed for 5 sec., afterwhich the label “LF”
will appear on the display and all the keys functions will be avail­able again .

3 - INFORMATION ON INSTALLATION AND USE

3.1 - PERMITTED USE

The instrument has been projected and
manufactured as a measuring and control device to
be used according to EN60730-1 for the altitudes

operation until 2000 ms. The use of the instrument
for applications not expressly permitted by the above mentioned
rule must adopt all the necessary protective measures. The
instrument CANNOT be used in dangerous environments
(flammable or explosive) without adequate protection.
The instrument used with NTC 103AT11 probe (identifiable by the
printed code “103AT-11” visible on the sensor part) is compliant
with standard EN 13485 ("Thermometers for measuring the air and
product temperature for the transport,storage and distribution of
chilled, frozen, deep-frozen/quick-frozen food and ice cream”) with
the following classification: [EN13485 air, S, A, 2,- 50°C +90°C]
Remember that the end user must periodically checks and verify
the thermometers in compliance with standard EN 13486.
The installer must ensure that EMC rules are respected, also after
the instrument installation, if necessary using proper filters.
Whenever a failure or a malfunction of the device may cause
dangerous situations for persons, thing or animals, please

remember that the plant has to be equipped with additional devices
which will guarantee safety.

3.2 - MECHANICAL MOUNTING

The instrument, in case 75 x 122 mm, is designed for
independently wall mounting by screws.
Once installed the instrument remember to close the frontal part
and fixing it with the 2 provided screws so that the opening is
possible only using a tool.
Avoid placing the instrument in environments with very high
humidity levels or dirt that may create condensation or introduction
of conductive substances into the instrument.
Ensure adequate ventilation to the instrument and avoid installation
in containers that house devices which may overheat or which may
cause the instrument to function at a higher temperature than the
one permitted and declared.
Connect the instrument as far away as possible from sources of
electromagnetic disturbances such as motors, power relays, relays,
solenoid valves, etc.

3.3 - ELECTRICAL CONNECTION

Carry out the electrical wiring by connecting only one wire to each
terminal, according to the following diagram, checking that the
power supply is the same as that indicated on the instrument and
that the load current absorption is no higher than the maximum
electricity current permitted. As the instrument is built-in equipment
or plant with permanent connection inside, it is not equipped with
either switches or internal devices to protect against overload of
current: the installation will include an overload protection and a
two-phase circuit-breaker, placed as near as possible to the
instrument, and located in a position that can easily be reached by
the user and marked as instrument disconnecting device which
interrupts the power supply to the equipment. It is also
recommended that the supply of all the electrical circuits connected
to the instrument must be protect properly, using devices (ex.
fuses) proportionate to the circulating currents (see Tech. Data for
details). It is strongly recommended that cables with proper
insulation, according to the working voltages and temperatures, be
used. Furthermore, the input cable of the probe has to be kept
separate from line voltage wiring. If the input cable of the probe is
screened, it has to be connected to the ground with only one side.
We recommend that a check should be made that the parameters
are those desired and that the application functions correctly before
connecting the outputs to the actuators so as to avoid
malfunctioning that may cause irregularities in the plant that could
cause damage to people, things or animals.

3.4 - ELECTRICAL WIRING DIAGRAM

2 FLA

60730

10 A Res.
12 LRA

8 (3) AOut:

61810

8 (4) A

EN EN UL

OUTPUT

111

SUPPLY

VAC

100...240

6

INPUT

423

Probe

78NC109

BUZZER

INTERNAL

NO C

12

W09

LN

4 - FUNCTIONS

4.1 - ON / STAND-BY FUNCTION

The instrument, once powered up, can assume 2 different
conditions:

- ON : means that the controller uses the control functions.

- STAND-BY : means that the controller does not use any control
function and the display is turned off except for the led Stand-by.

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 3

If there is no power, and then power returns, the system always
sets itself in the condition it was in before the black-out.
The ON/Stand-by function can be selected using the key U if the
parameter "t.UF" = 4.
Pressing the key U for at least 1 sec., it is possible to switch the
instrument from the ON status to Stand-by status and vice versa.

4.2 - MEASURING AND VISUALIZATION

Via the parameter “i.SE” it is possible to select the type of probes
that one wishes to use and which can be: thermistores PTC
KTY81-121 (Pt) or NTC 103AT-2 (nt).
Via the parameter “i.uP”, it is possible to select the temperature
unit of measurement the desired measurement resolution (C0=°C /
1° ; C1=°C / 0.1° ; F0= °F / 1°; F1= °F / 0.1°).
The instrument allows the measuring to be calibrated, that can be
used for re-calibrating the instrument according to application
needs, through the parameters “i.C1”.
Using the parameter “i.Ft”, it is possible to set the time constant
for the software filter for measuring the input values to be able to
reduce the sensitivity to measurement disturbances (increasing the
time).
The normal visualisation on the display is the measured
temperature but it is possible to visualise the highest and lowest
peak measurement values; by quickly pressing and releasing key
U.
The display will alternately show:
“Lt” and the lowest peak temperature

“Ht” and the highest peak temperature
“Pr1” and the instant measured temperature

When the instrument is switched off, such values are always re-set.
However, it is also possible to reset these values if the instrument
is switched on by using the DOWN key hold for 3 sec. during peak
visualization.
The display will show “---” and peaks memory will be reset.
The exit of this visualisation mode occurs automatically 15 seconds
after the last pressing on the key U.
Please remember that visualisation of the probe can be changed
by the defrosting display lock function, by using the parameter

“d.dL” (see defrost function).

4.3 - TEMPERATURE CONTROL

The regulation of the instrument is ON/OFF and acts on the output
depending on the measuring of probe, of the Set Point “SP”, the
intervention differential “r.d” and the function mode “r.HC” .
Depending on the function mode programmed on the parameter
“r.HC” the differential is automatically considered by the regulator
with positive values for a Refrigeration control (“r.HC”=C) or with
negative values for a heating control (“r.HC”=H).

SP

off

ON

r.HC=H

time

r.d

SP

Temp.

r.d

time

r .HC=

C

ON ONON ON ON

offoff off

Temp.

Out Out

In the event of probe error, it is possible to set the instrument so
that that the output continues to work in cycles according to the
times programmed in the parameter “r.t1” (activation time) and
“r.t2” (deactivation time).
If an error occurs on the probe the instrument activates the output
for the time “r.t1”, then deactivates it for the time “r.t2” and so on
whilst the error remains.
Programming “r.t1” = oF the output in probe error condition will
remain switched off.
Programming instead “r.t1” to any value and “r.t2” = oF the output
in probe error condition will remain switched on.

Remember that the temperature regulation function can be
conditioned by the “Compressor Protections”, “Delay at power on”
and “Desfrost” functions.

4.4 - COMPRESSOR PROTECTION FUNCTION AND DELAY AT
POWER-ON

The function “Compressor Protection” aims to avoid close start ups
of the compressor controlled by the instrument in cooling
applications.
This function foresees 3 time controls on the switching on of the
output associated with the temperature regulation request.
The protection consists of preventing the output being switched on
during the times set in the parameters “P.P1”, “P.P2” and “P.P3”
and therefore that any activation occurs only after all the times has
finished.
First control (par. “P.P1” ) foresees a delay to the output activation
(switching-on delay).

Temp.

Out

off

ON

SP

time

r.d

off off off

ON ON

Second control (par. “P.P2” ) foresees an inhibition to the
activation of the output by a time delay that starts when the output
is turning off (delay after switching-off).

ON

Out

off

P.P2

P.P2 P.P2

SP

Temp.

time

r.d

ON ON

off off

Third control (par. “P.P3” ) foresees an inhibition to the activation
of the output "Out" by a time delay that starts when the output was
turning on last time (delay between switching-on) .

P.P3

Out

off

SP

ON

Temp.

P.P3 P.P3

time

r.d

off off

ON ON

During the output inhibition the led OUT (Cool o Heat) blinking.
It is also possible to prevent activation of the output after the
instrument is turned on, for the time set in the parameter “P.od”.
During the power on delay phase, the display shows the indication
od, alternating with the normal visualisation.
All the functions are disabled by relative parameters = oF.

4.5 - DEFROST CONTROL

The automatic control of defrost, that is by stopping compressor,
occours by interval times
The automatic defrost function is activate when at the parameter
“d.di” is set the defrost interval time.
The first defrost after swiching on can be set by par. “d.Sd”

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 4

This allows to perform the first defrost to a different interval from
"d.di." time.
If it is desired that to every instrument power on a defrost cycle is
realized program the par. "d.Sd" = oF.
Instead if is desired all defrost to the same interval program "d.Sd"
= "d.di."
Automatic defrost function is disable when “d.di” = oF.
The instrument provides to switch off the output for the time
“d.dE” each “d.di” time (of “d.Sd” in case of first defrost after
power on)

4.5.1 - MANUAL DEFROST

To start up a manual defrosting cycle, press the key UP/DEFROST
when it is not in programming mode and keep it pressed for about
5 seconds after which, if the conditions are correct, the led Defrost
will light up and the instrument will carry out a defrosting cycle.
To stop a defrosting cycle, press the key UP/DEFROST during the
defrost and keep it pressed for about 5 seconds.

4.5.2 - DEFROST DISPLAY LOCK

Through par. “d.dL” and “A.dA” it’s possible to define the display
behaviour during defrost.
The “d.dL” parameter pemits the display visualization lock on the
last temperature reading (“d.dL” = on) during all the defrost cycle
until, at the end of defrost, the temperature has not reached the
lock value or the value [”SP” + “r.d”] or is elapsed the time setted
on par. "A.dA".
Or it permits only the visualization of label “dEF” (“d.dL” = Lb)
during the defrost cycle and, after the defrost, of label “PdF” until,
at the end of defrost, the temperature has not reached the lock
value or the value [”SP” + “r.d”] or is elapsed the time setted on
par. "A.dA".
The display will otherwise (“d.dL”= oF) continue to visualize the
temperature measured by the probe during the defrost cycle .

4.6 - ALARM FUNCTIONS

The alarm conditions of the instrument are:

- Probe errors “E1” , “-E1”

- temperature alarms “Hi” and “Lo”
The alarm functions of the instrument work on the led ALARM and
on the internal buzzer, if present and configured via the parameter
“o.bu”,
The possible selections of the parameter “o.bu” are:

= oF - Buzzer always disable
= 1 - Buzzer signal active alarms only
= 2 - Buzzer signal key pressed only (no alarm)
= 3 - Buzzer signal active alarms and key pressed

Any active alarm is shown on the instrument display with the
lighting up of the ALARM led, the silenced alarm status is shown by
the ALARM led flashing .
The buzzer (if “o.bu” = 1 or 3) is activated in alarm and can be
disabled (alarm silencing) manually by pressing any key of the
instrument .

4.6.1 - TEMPERATURE ALARMS

The temperature alarms work according to the probe
measurement, the type of alarm set in the parameter “A.Ay” the
alarm thresholds set in parameters “A.HA” (maximum alarm) and
“A.LA” (minimum alarm) and the relative differential “A.Ad”.
Through the parameter “A.Ay” it is possible to set the alarm
thresholds “A.HA” and “A.LA” which must be considered as
absolute (“A.Ay”=1) or relative to the Set Point (“A.Ay”=2).
Using some parameters it is also possible to delay the
enablement and the intervention of these alarms.
These parameters are:
“A.PA” - is the temperature alarm exclusion time on switching on
the instrument if the instrument is in alarm status when it is
switched on.
If the instrument is not in alarm status when it is switched on the
time "A.PA" it is not considered.
“A.dA” - is the temperature alarm exclusion time at the end of
defrosting
“A.At” - is the temperature alarm delay activation time
The temperature alarm is enabled at the end of exclusion time and
is enabled after the “A.At” time when the temperature measured by

the probe exceeds or goes below the respective maximum and
minimum alarm thresholds.
The alarm thresholds will be the same as those set on the
parameters “A.HA” and A.LA” if the alarms are absolute (“A.Ay”=1)

A.Ad

A.Ad

time

AL

off

ON

A.LA

Hi

A.HA

Temp.

Lo

off off

ON

or will be the values [”SP”+”A.HA”] and [”SP”+”A.LA”] if the alarms
are relative (“A.Ay”=2).

time

A.Ad

A.Ad

AL

off

ON

Hi

A.LA

SP

A.HA

Temp.

Lo

off off

ON

The maximum and minimum temperature alarms can be disabled
by setting the relative parameters "A.HA" and "A.LA" = oF.

4.7 - PARAMETERS CONFIGURATION BY “A01”

The instrument is equipped with a connector that allows the trans­fer from and toward the instrument of the functioning parameters
through the device A01 with 5 poles connector.
This device it’s mainly useable for the serial programming of the
instruments which need to have the same parameters configuration
or to keep a copy of the programming of an instrument and allow its
rapid retransmission.
The same device A01 allows the USB connection to a PC and
through the "TECNOLOGIC UniversalConf" configuration software
it is possible to program all the instrument parameters.
To access the connector it is necessary to remove power supply,
remove the 2 screws on the upper side of the instrument and
therefore remove the plastic cover.
We recommends to supply A01 and the instrument by the
provided power adaptor and DO NOT supply the instrument when
the cover has been removed because there are live accessible
parts at main voltage.
For additional info, please have a look at the A01 instruction
manual.

AC SUPPLY

SUPPLY ADAPTER

12 VDC

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 5

5 - PROGRAMMABLE PARAMETERS TABLE

Here below is a description of all the parameters available on the
instrument. Some of them may not be present because depend
on the model/type of instrument.

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

Out delay between
switching-on

P.P3

18

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Out delay after switch
off

P.P2

17

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Out delay at switch on

P.P1

16

P. parameters relative to compressor protection and power

on delay

oFoF - on - LbDefrost display Lock
oF= display free
on= Lock on
temperature Pr1
before defrost
Lb= Lock on label
“dEF” (during
defrosting) and “PdF”
(during
post-defrosting)

d.dL

15

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Lenght of defrost cycle

d.dE

14

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Delay first defrost after
power-on
(oF = Defrost at
power-on)

d.Sd

13

oFoF/ 0.01 ÷ 9.59

(hrs.min. ) ÷

99.5

(hrs.min.x10)

Defrosting interval

d.di

12

d. - parameters relative to defrosting control

CH - COutput operating mode
H= Heating
C= Cooling

r.HC

11

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Output deactivation
time for probe error

r.t2

10

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Output activation time
for probe error

r.t1

9

2.00.0 ÷ 30.0

°C/°F

Differential
(Hysteresis)

r.d

8

r. - parameters relative to temperature control

0.0-30.0 ÷ 30.0

°C/°F

Probe Calibration

i.C1

7

2.0oF ÷ 20.0

sec

Measurement filter

i.Ft

6

C1C0 / F0 / C1 /

F1

Unit of measurement
and resolution
(decimal point)
C0 = °C with 1° res.
F0 = °F with 1° res.
C1 =°C with 0,1° res.
F1 = °F with 0,1° res.

i.uP

5

ntPt / ntProbes Type

i.SE

4

i. -parameters relative to inputs

0.0LS ÷ HSSet Point

SP

3

99.9LS ÷ 999Maximum Set Point

S.HS

2

-50.0-99.9 ÷ HSMinimum Set Point

S.LS

1

S. - parameters relative to Set Point

NoteDef.RangeDescriptionPar.

oFoF ÷ 999Access Password to

parameter functions

t.PP

30

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

30.0

(min.sec.x10)

Keyboard lock function
delay

t.Lo

29

oFoF / 4
(1 / 2 / 3 =
don’t use)

Function mode key U
oF= No function
4= Switch on/Switch
off (Stand-by)

t.UF

28

t. - parameters relative to configuration of the keyboard

3oF / 1 / 2 / 3 Buzzer function mode
oF = disable
1 = active alarms only
2 = key pressed only
3 = active alarms and
key pressed

o.bu

27

o. -parameters relative to buzzer

1.00oF/ 0.01 ÷ 9.59

(hrs.min. ) ÷

99.5

(hrs.min.x10)

Temperature Alarms
delay and unlock
display delay after
defrost

A.dA

26

2.00oF/ 0.01 ÷ 9.59

(hrs.min. ) ÷

99.5

(hrs.min.x10)

Temperature Alarms
delay at power on

A.PA

25

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Temperature Alarms
delay

A.At

24

1.00.0 ÷ 30.0

°C/°F

Temperature Alarms
Differential

A.Ad

23

oFoF / -99.9 ÷

999 °C/°F

Low temperature
Alarm threshold

A.LA

22

oFoF / -99.9 ÷

999 °C/°F

High temperature
Alarm threshold

A.HA

21

11 / 2

(/ 3 / 4 / 5 / 6 /

7 / 8 = don’t

use)

Temperature alarms
Type:
1 = Absolute
2 =Relative to Set

A.Ay

20

A. - parameters relative to alarms

oFoF/ 0.01 ÷ 9.59

(min.sec ) ÷

99.5

(min.sec.x10)

Delay at power on

P.od

19

99.5

(min.sec.x10)

6 - PROBLEMS, MAINTENANCE AND GUARANTEE

6.1 - SIGNALLING

Replace the instrument
or ship to factory for
repair

Fatal memory error

Err

Press key PInternal EEPROM

memory error

EPr

Check the correct
connection of the probe
with the instrument and
check the probe works
correctly

The probe may be
interrupted (E) or in
short circuit (-E), or may
measure a value outside
the range allowed

E1

-E1

Action ReasonError

Other Signalling:

Minimum temperature alarm in progress

Lo

Maximum temperature alarm in progress

Hi

Post-defrosting in progress with “d.dL”=Lb

PdF

Defrosting in progress with “d.dL”=Lb

dEF

Keyboard lock

Ln

Delay at power-on in progress

od

ReasonMessage

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 6

6.2 - CLEANING

We recommend cleaning of the instrument only with a slightly wet
cloth using water and not abrasive cleaners or solvents.

6.3 - GUARANTEE AND REPAIRS

The instrument is under warranty against manufacturing flaws or
faulty material, that are found within 12 months from delivery date.
The guarantee is limited to repairs or to the replacement of the
instrument.
The eventual opening of the housing, the violation of the instrument
or the improper use and installation of the product will bring about
the immediate withdrawal of the warranty’s effects.
In the event of a faulty instrument, either within the period of
warranty, or further to its expiry, please contact our sales
department to obtain authorisation for sending the instrument to
our company.
The faulty product must be shipped to ASCON TECNOLOGIC with
a detailed description of the faults found, without any fees or
charge for ASCON TECNOLOGIC, except in the event of
alternative agreements.

7 - TECHNICAL DATA

7.1 - ELECTRICAL DATA

Power supply: 100...240 VAC +/- 10%
Frequency AC:

50/60 Hz

Power consumption:

3 VA approx.

Recommended Fuse:

instrum. supply: T 200 mA 250V; other
circuits: depending on the connected load.
Input/s:

1 input for temperature probes: PTC (KTY 81-121, 990 Ω
@ 25 °C) or NTC (103AT-2, 10KΩ @ 25 °C).
Output/s:

1 relay output SPDT

10 A Res.,
12 LRA,
2 FLA

8 (4) A8 (3) AOut1 - SPDT - 8 A

- 1/2HP 250V, 1/3
HP 125 VAC

UL 60730EN 60730EN 61810

Electrical life for relay outputs: 100000 op. (EN60730)
Action type:

type 1.B (EN 60730-1)

Overvoltage

category: II

Protection class :

Class II

Insulation:

Reinforced insulation between the low voltage part
(supply and relay output) and front panel; Reinforced insulation
between the low voltage section (supply H type and relay output)
and the extra low voltage section (inputs); Reinforced between
supply and relay output.

7.2 - MECHANICAL DATA

Housing:

Self-extinguishing plastic, UL 94 V0

Heat

and fire resistance category: D

Ball Pressure Test

secondo EN60730: acessible parts 75 °C;
support live parts 125 °C
Dimensions:

75 x 122 mm, depth 34 mm

Weight:

120 g approx.

Mounting:

independently wall mounting

Connections:

2,5 mm2 screw terminals block for 0,2...1,5 mm2 /
AWG 24...16 cables.
Cables outlet:

on the back side or lateral side by PG9 cable gland

Degree of front panel protection :

IP 40

Pollution situation:

2

Operating temperature:

0 T 50 °C

Operating humidity:

< 95 RH% without condensation

Storage temperature:

-25 T 60 °C

7.3 - MECHANICAL DIMENSIONS AND MOUNTING [mm]

75

122

34

16

60

55

7.4 - FUNCTIONAL FEATURES

Temperature Control: ON/OFF mode
Defrost control:

interval cycles by stopping compressor

Measurement range:

NTC: -50...109 °C / -58...228 °F; PTC:

-50...150 °C / -58 ... 302 °F
Display resolution:

1 ° or 0,1° (range -99.9 ...99.9 °)

Overall accuracy:

+/- (0,5 % fs + 1 digit)

Sampling rate:

130 ms.

Display:

3 Digit Red (or Blue as option) h 15,5 mm

Software

class and structure : Class A

Compliance:

Directive 2004/108/CE (EN55022: class B; EN61000­4-2: 8KV air, 4KV cont.; EN61000-4-3: 10V/m; EN61000-4-4: 2KV
supply and relay outputs, 1KV inputs; EN61000-4-5: supply 2KV
com. mode, 1 KV\ diff. mode; EN61000-4-6: 3V);
Directive 2006/95/CE (EN 60730-1, EN 60730-2-9).
Regulation 37/2005/CE (EN13485 air, S, A, 2,- 50°C +90°C with
probe NTC 103AT11).

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 7

7.5 - INSTRUMENT ORDERING CODE

W09- a b c d e f g h ii jj

a :

POWER SUPPLY

H = Supply 100..240 VAC

b : OUT
R = Out Relay SPDT 8A-AC1

c : BUZZER

- = (No)
B = Buzzer

d, e, f, g, h : INTERNAL CODES

ii, jj : SPECIAL CODES

ASCON TECNOLOGIC - W09- - OPERATING INSTRUCTIONS - Vr. 02 - 04/12 - ISTR-MW09-ITA02 - PAG. 8