Ascon tecnologic TLY25 User manual

FOREWORD
INDEX
1 INSTRUMENT DESCRIPTION
1.1 GENERAL DESCRIPTION
1.2 FRONT PANEL DESCRIPTION
2 PROGRAMMING
2.1 PROGRAMMING OF SET POINT
2.2 PARAMETERS PROGRAMMING
2.3 PARAMETER PROTECTION USING THE PASSWORD
2.4 PARAMETERS PROGRAMMING LEVEL
2.5 ACTIVE SET POINT SELECTION
2.6 ON / STAND-BY FUNCTION
2.7 CLOCK PROGRAMMING
3 INFORMATION ON INSTALLATION AND USE
3.1 PERMITTED USE
3.2 MECHANICAL MOUNTING
3.3 ELECTRICAL CONNECTIONS
3.4 ELECTRICAL WIRING DIAGRAM
4 FUNCTIONS
4.1 MEASURING AND VISUALIZATION
4.2 OUTPUTS CONFIGURATION
4.3 TEMPERATURE CONTROL
4.4 CONTINUOUS CYCLE FUNCTION
4.5 COMPRESSOR PROTECTION FUNCTION AND DELAY
AT POWER-ON
4.6 DEFROST CONTROL
4.7 MANUAL DEFROST
4.8 EVAPORATOR FANS CONTROL
4.9 ALARM FUNCTIONS
4.9.1 TEMPERATURE ALARMS
4.9.2 EXTERNAL ALARM
4.9.3 OPEN DOOR ALARM
4.9.4 ALARM MEMORY
4.10 DIGITAL INPUT
4.11 AUXILIARY OUTPUT
4.12 FUNCTION OF KEYS “U” AND “DOWN/AUX”
4.13 PARAMETERS CONFIGURATION BY A01
5 PROGRAMMABLE PARAMETERS TABLE
6
PROBLEMS MAINTENANCE AND WARRANTY
6.1 SIGNALLING
6.2 CLEANING
6.3
WARRANTY AND REPAIRS
7 TECHNICAL DATA
7.1 ELECTRICAL DATA
7.2 MECHANICAL DATA
7.3 MECHANICAL DIMENSIONS, PANEL CUT-OUT AND
MOUNTING
7.4 FUNCTIONAL DATA
7.5 INSTRUMENT ORDERING CODE
1 - INSTRUMENT DESCRIPTION
1.1 - GENERAL DESCRIPTION
The model TLY 25 is a di ital controller with microprocessor that is
typically used in coolin applications that have temperature control
with ON/OFF re ulation and defrostin control with set time and
hours intervals (Real Time Clock Defrostin ) by means of electrical
heatin or hot as/cycle inversion.
The instrument has 4 relay outputs, two inputs for PTC or NTC
temperature probes and a di ital input, that can all be confi ured.
The 4 outputs can be used for controllin the compressor or the
temperature control device (OUT), the defrostin device (DEF), the
evaporation fan (FAN), an alarm (AL) or, alternatively any of the
previous functions, usin an auxiliary device (AUX).
The two inputs for the PTC and NTC temperature probes (which
can be selected by parameter) can be used to measure the cell
temperature (Pr1) and the evaporator temperature (Pr2) while the
di ital input (DIG) can be pro rammed to carry out various
functions such as defrostin commands, selectin a different set of
temperature re ulations, external alarm si nals, activatin a
continuous cycle, and activatin an auxiliary output etc.
The instrument is equipped with 4 pro ramme keys, a 4-di it
display and 9 LED si nals.
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 1
MICROPROCESSOR-BASED
DIGITAL ELECTRONIC FREEZER
CONTROLLER
TLY25
This manual contains the information
necessary for the correct installation, and the
instructions for the use and maintenance of the
product; the user is advised to read it carefully
and conserve it for reference.
This publication is exclusive property of Ascon Tecnologic S.r.l.;
unless expressly authorized, reproduction and disclosure of
even part of its contents is strictly prohibited.
Ascon Tecnologic S.r.l. reserves the right to make visual
and functional modifications to this manual at any moment
and without advance warning.
In the event that a fault or malfunction of the device should
create hazardous or damaging situations for persons, property
or animals, note that the system must be fitted with additional
devices aimed at guaranteeing safety.
Ascon Tecnologic S.r.l. and its legal representatives shall
accept no responsibility for any damage caused to persons,
property or animals deriving from tampering, improper or
erroneous usage, or use that is not in conformity with the
specifications of the appliance.
OPERATING INSTRUCTIONS
17/06 - Code: ISTR_M_TLY25_e_02_--
ASCON TECNOLOGIC S.r.l.
Viale Indipendenza 56
27029 Vigevano (PV) ITALY
TEL.: [phone] - FAX: [phone]
http:\\www.ascontecnologic.com
e-mail: [email protected]

Other important characteristics of the instrument are: pro ram
parameters protection usin personalised password, on/off
instrument switchin (stand-by) usin the front keys or the
di ital input, parameters confi uration via the A01 device, the
ability to store two temperature SP that can be switched and
the possibility of power supply in the ran e 100... 240 VAC.
1.2 - FRONT PANEL DESCRIPTION
2 - PROGRAMMING
2.1 - PROGRAMMING OF THE SET POINT
Press the key P then release it and the display will show SP 1 (or
SP 2 if the second set is active at that time) alternatin with the set
value (see selection of the active set point).
To chan e it press the UP key to increase the value or DOWN to
decrease it.
These keys increase or decrease the value one di it 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.
Exitin the Set mode is achieved by pressin the P key or
automatically if no key is pressed for 15 seconds. After that time
the display returns to the normal function mode.
2.2 - PARAMETERS PROGRAMMING
To access the instrument’s function parameters, press the key P
and keep it pressed for about 5 seconds, after which the SET led
will li ht up, the display will visualised the code that identifies the
first roup of parameters (“]SP “) and the roup of parameters that
are to be edited are selected by pressin the UP and DOWN keys.
Once the roup of parameters has been selected, press the P and
the code that identifies the first parameter in the selected roup will
be visualised.
A ain usin the UP and DOWN keys, the desired parameter can be
selected and pressin the P key, the display will alternately show
the parameter code and its settin that can be chan ed with the UP
and DOWN keys.
Once the desired value has been set, press the key P a ain: the
new value will be memorised and the display will show only the
abbreviation of the selected parameter.
Pressin the UP and DOWN keys, it is possible to select another
parameter (if present) and chan e it as described.
To return to select another roup of parameters, keep the UP or the
DOWN key pressed for about 1 second, after which the display will
return to showin the code of the parameter roup.
Release the pressed key and usin the UP and DOWN keys it will
be possible to select another roup (if present).
To exit the pro rammin mode, do not press any key for about 20
seconds, or keep the UP or DOWN key pressed until it exits the
pro rammin mode.
Lon er
Hold
2 sec.
Hold for
2 sec.
Hold for
5 sec.
Hold for
2.3 - PARAMETER PROTECTION USING THE PASSWORD
The instrument has a parameter protection function usin a
password that can be personalised, throu h the “PASS”
parameter in the “]PAn” set.
If one wishes to have this protection, set the password number
desired in the parameter “PASS”.
When the protection is workin , press the P key to access the
parameters and keep it press for about 5 seconds, after which the
LED SET will flash and the display will show “0” .
At this point, usin the UP and DOWN keys, set the password
number pro rammed and press the key "P".
If the password is correct, the display will visualise the code that
identifies the first roup of parameters(“]SP “) and it will be possible
to pro ramme the instrument in the same ways described in the
previous section.
Protection usin a password can be disabled by settin the
parameter “PASS” = OFF.
2.4 - PARAMETERS PROGRAMMING LEVELS
The instrument has two parameter pro rammin levels.
The first level (“visible” parameters) is accessed accordin to the
procedure described above (with or without password request)
while the second level (“hidden” password) can be accessed
accordin to the followin procedure.
Remove the power supply to the instrument, press the key P and
return power to the instrument, keepin the key pressed.
After about 5 sec. the SET led will li ht up, the display will show the
code that identifies the first roup of parameters(“]SP “) and it will
be possible to set the parameters of the instrument usin the same
pro rammin procedure described previously.
Once the parameter has been selected and the SET is on, it means
that the parameter can be pro rammed even on the first level
("visible”).
If the LED is off it means that the parameter can only be
pro rammed on this level (i.e. “hidden”).
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 2
1 - Key P : Used for settin the Set point and for pro rammin the
function parameters
2 - Key DOWN/Aux : Used for decreasin the values to be set and
for selectin the parameters. It can also be pro rammed via the
parameter “Fbd” to carry out other functions such as activatin the
Aux output, startin up the continuous cycle, selectin the active
set point or turnin on and off (stand-by) the device (see par. 4.12).
3 - Key UP/DEFROST : Used for increasin the value to be set, for
selectin the parameters and for activatin manual defrostin .
4 - Key U : Used for visualisin the temperatures taken by the cell
probes and evaporator (Pr1 and Pr2) and the internal clock (if
present). It can also be pro rammed via the parameter “USrb” to
carry out other functions, just like the key DOWN/AUX (see par.
4.12).
5 - Led OUT : Indicates the compressor output status (or the
temperature control device) on (on), off (off) or inhibited (flashin ) 6
- Led DEF : Indicates defrostin in pro ress (on) or drippin
(flashin ).
7 - Led FAN : Indicates fan output status on (on), off (off)
or delayed after defrostin (flashin )
8 - Led AUX : Indicates AUX output status on (on), off (off) or
inhibited (flashin )
9 - Led AL : Indicates the alarm status (on), off (off) and silenced
or memorized (flashin )
10 - Led SET : Indicates the input in pro rammin mode and the
pro rammin level of the parameters. It also serves to indicate the
Stand-by status.
11 - Led - : Indicates that a low temperature alarm is in pro ress
(lit) or that a low temperature alarm has been memorised (flashin ).
12 - Led OK : Indicates that no alarms are in pro ress
13 - Led + : Indicates that a hi h temperature alarm is in pro ress
(lit) or that a hi h temperature alarm has been memorised
(flashin ).
9
TLY25
4
U
3
P
OK
2
Out Def Fan
Aux
1
5 6 11 12 13 7 8 10

To chan e the visibility of the parameter, press the key U: the led
SET will chan e status, indicatin the accessibility level of the
parameter (on = parameter “visible”; off = parameter “hidden”).
The access procedure for “hidden” parameters allows the “PASS”
parameter to be checked and chan ed, and is useful therefore if
the password set has been for otten.
2.5 - ACTIVE SET POINT SELECTION
The instrument allows up to 2 different re ulation Set points to be
pre-set (“SP 1” and “SP 2”) and then to choose which one to
make active.
This function can be used if it is necessary to switch two different
function temperatures (e. . day and ni ht or positive and ne ative
etc).
The active set point can be selected:
- Usin the parameter “SPAt”
- usin the key U if the parameter "USrb" = 3.
- Usin the key DOWN/AUX if the parameter "Fbd" = 3.
- Usin the di ital input if the parameter. “diF” = 8
(see par. 4.10 e 4.12)
The Set points "SP1" and "SP2" can be set with a value between
the pro rammed value in parameter. “SPLL” and the pro rammed
value in parameter “SPHL”.
Nota: in the examples that follow, the Set point is generally
indicated as "SP", how when operating the instrument will work
according to the Set point selected as active.
2.6 - 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 reen SET led.
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:
- Usin the key U if the parameter "USrb" = 4.
- Usin the key DOWN/AUX if the parameter "Fbd" = 4.
- usin the di ital input if the parameter “diF” = 10
(see par. 4.10 e 4.12)
2.7 - TIME SETTING
When the instrument has an internal clock it is necessary to
pro ramme it on the current time by usin the parameter “StCL”
contained in the roup “]CLO“.
The instrument has an internal quartz for the clock, however,
should the clock become inaccurate (especially over a lon period)
it can be adjusted daily usin the parameter “CLOF” contained in
the same roup.
The workin of the clock is uaranteed by an internal condenser for
a period of about 4 hours without any power to the instrument.
If the instrument should remain without power for a lon period,
remember to check and if necessary re-pro ramme the exact time.
3 - INFORMATION ON INSTALLATION AND USE
3.1 - PERMITTED USE
The instrument has been projected and manufactured as a
measurin and control device to be used accordin to EN61010-1
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 dan erous environments
(flammable or explosive) without adequate protection.
The installer must ensure that EMC rules are respected, also after
the instrument installation, if necessary usin proper filters.
Whenever a failure or a malfunction of the device may cause
dan erous situations for persons, thin or animals, please
remember that the plant has to be equipped with additional devices
which will uarantee safety.
3.2 - MECHANICAL MOUNTING
The instrument, in case 33 x 75 mm, is desi ned for flush-in panel
mountin .
Make a hole 29 x 71 mm and insert the instrument, fixin it with the
provided special bracket.
We recommend that the asket is mounted in order to obtain the
front protection de ree as declared. Avoid placin the instrument in
environments with very hi h 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 hi her temperature than the
one permitted and declared.
Connect the instrument as far away as possible from sources of
electroma netic disturbances such as motors, power relays, relays,
solenoid valves, etc.
3.3 - ELECTRICAL CONNECTION
Carry out the electrical wirin by connectin only one wire to each
terminal, accordin to the followin dia ram, checkin that the
power supply is the same as that indicated on the instrument and
that the load current absorption is no hi her than the maximum
electricity current permitted.
As the instrument is built-in equipment with permanent connection
inside housin , it is not equipped with either switches or internal
devices to protect a ainst 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 disconnectin 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, usin
devices (ex. fuses) proportionate to the circulatin currents.
It is stron ly recommended that cables with proper insulation,
accordin to the workin volta es and temperatures, be used.
Furthermore, the input cable of the probe has to be kept separate
from line volta e wirin . If the input cable of the probe is screened,
it has to be connected to the round with only one side.
Whether the instrument is 12 V version it’s recommended to use an
external transformer TCTR, or with equivalent features, and to use
only one transformer for each instrument because there is no
insulation between supply and input.
We recommend that a check should be made that the parameters
are those desired and that the application functions correctly before
connectin the outputs to the actuators so as to avoid
malfunctionin that may cause irre ularities in the plant that could
cause dama e to people, thin s or animals.
Ascon Tecnologic S.r.l. 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.
3.4 - ELECTRICAL WIRING DIAGRAM
TLY25
DiPr1 Pr2
INPUTS
NOC
SUPPLY
NO
Out 2,3,4 Supply H: 5A-AC1(2A-AC3) / 250 VAC
Out2,3,4 Supply F: 8A-AC1(3A-AC3) / 250 VAC
Out1: 16A-AC1(6A-AC3) / 250 VAC
Out2 Out3 Out4
1 2 3 4 5 6 7 8 9 10 11 12
NO NO
Out1
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 3

4 - FUNCTIONS
4.1 - MEASURING AND VISUALIZATION
All the parameters concernin measurin are contained in the
roup “]InP”.
Via the parameter “SEnS” it is possible to select the type of probes
that one wishes to use and which can be: thermistores PTC
KTY81-121 (Ptc) or NTC 103AT-2 (ntc).
Once the type of probe used has been selected, throu h the
parameter “Unit” it is possible to select the temperature unit of
measurement (°C or °F) and, throu h the parameter “dP”, the
resolution of the desired measurement (OFF=1°; On =0,1°).
The instrument allows the measurin to be calibrated, that can be
used for re-calibratin the instrument accordin to application
needs, throu h the parameters “OFS1” (for the probe Pr1) and
“OFS2” (for the probe Pr2).
If probe Pr2 (evaporator) is not used, set the parameter “Pr 2” =
OFF.
Usin the parameter “FiL” it is possible to set the time constant for
the software filter for measurin the input values to be able to
reduce the sensitivity to measurement disturbances (increasin the
time).
Throu h the para raph “diSP” it is possible to fix the normal
visualisation on the display that can be the measurement of the cell
probe (Pr 1), the measurement of the evaporator probe (Pr 2), the
set point of active re ulation (SP), the current hour if the instrument
has a clock (CLo) or it can have the numerical display switched off
(OFF).
Re ardless of what is set in the parameter “diSP”, it is possible to
visualise all the variables in rotation by pressin the key U, the
display will alternately show the code that identifies the variable (Pr
1, Pr 2 and, if present the clock, CLo) and its value.
The exit of this visualisation mode occurs automatically 15 seconds
after the last pressin on the key U.
Please remember that visualisation of the probe Pr1 can be
chan ed by the display block in defrostin function too, by usin
the parameter “dLo” (see par. 4.6).
4.2 - OUTPUTS CONFIGURATION
The instrument outputs can be confi ured in the parameters roup
“]Out” where the relative parameters “O1F” “O2F” “O3F”
“O4F” are found.
The outputs can be confi ured for the followin functions
= Out - to control the compressor or however, the temperature
control device
= dEF - to control the defrostin device
= FAn - to control the fans
= AuS - to control the auxiliary device (see par. 4.11)
= ALt - to control a silenceable alarm device throu h a contact that
is normally open, and then closed when the alarm sounds
= AL - to control an alarm that cannot be silenced throu h a contact
that is normally open and closed when the alarm sounds.
= ALL - to control an alarm with a memory function throu h a
contact that is normally open and closed when the alarm sounds.
= -ALt - to control a silenceable alarm device throu h a contact that
is normally closed, and then open when the alarm sounds.
= -AL - control an alarm that cannot be silenced throu h a contact
that is normally closed and open when the alarm sounds.
= -ALL - to control an alarm with a memory function throu h a
contact that is normally closed and open when the alarm sounds
(see alarm memory).
= OFF - Disabled output
4.3 - TEMPERATURE CONTROL
All the parameters concernin temperature re ulation are
contained in the roup “]rEG”.
The re ulation of the instrument is ON/OFF and acts on the output
confi ured as “Out” dependin on the measurin of probe Pr1, of
the active Set Point “SP” (1 or 2), the intervention differential
“HSEt” and the function mode “Func” .
Dependin on the function mode pro rammed on the parameter
“Func” the differential is automatically considered by the re ulator
with positive values for a Refri eration control (“Func”=CooL) or
with ne ative values for a heatin control (“Func”=HEAt).
Out
SP
off
ON
HEAt
Out
time
HSEt
SP
Temp.
HSEt
time
CooL
ON ONON ON ON
offoff off
Pr1 Pr1
Temp.
In the event of cell probe error (Pr1), it is possible to set the
instrument so that that the output “Out” continues to work in cycles
accordin to the times pro rammed in the parameter “tonE”
(activation time) and “toFE” (deactivation time).
If an error occurs on the probe Pr1 the instrument activates the
output for the time “tonE”, then deactivates it for the time “toFE” and
so on whilst the error remains.
Pro rammin “tonE” = OFF lthe output in probe error condition will
remain switched off.
Pro rammin instead “tonE” to any value and “toFE” = OFF the
output in probe error condition will remain switched on.
Remember that the temperature re ulation function can be
conditioned by the “Continuous Cycle”, “Compressor Protection”,
“Minimum compressor function time”, “Delay compressor start up
after defrostin ” and “inhibition of compressor close to defrostin ”
functions described below.
4.4 - CONTINUOUS CYCLE FUNCTION
The instrument has a continuous cycle function by which it is
possible to maintain the confi ured output confi ured as “out”
always active for the time set in parameter “tCC” (in the roup
“]rEG”) re ardless of the temperature control command.
The function can be used for example, when rapid lowerin of the
product temperature is required after the refri erator loadin phase.
Durin the continuous cycle, the defrostin is inhibited and the
temperature alarms are disabled durin the entire cycle and also
later for the time set in parameter “dALc” (see par. 4.9).
Startin up a continuous cycle can only be done by a manual
command usin the U or DOWN/AUX (“UrSb” or “Fbd” = 2) keys or
via the di ital input (“diF”=3) if suitably pro rammed (see par. 4.10
and 4.12).
The continuous cycle in pro ress is shown on the display with the
indication CC and can be stopped by a further action on the key or
di ital input (as for activation).
The continuous cycle function cannot be activated durin defrostin
and with "tCC" = OFF.
4.5 - COMPRESSOR PROTECTION FUNCTION AND DELAY AT
POWER-ON
All the parameters concernin the compressor protection functions
and the delay at power on are contained in the roup “]PrC”.
The function “Compressor Protection” carried out by the machine
aims to avoid close start-ups of the compressor controlled by the
instrument in coolin applications.
This function foresees a time control on the switchin on of the
“Out” output associated with the temperature re ulation request.
The protection consists of preventin the output bein switched on
durin the time set in the parameter “PtC” and counted dependin
on what has been pro rammed in the parameter “PSC”, and
therefore that any activation occurs only after the “PtC” time has
finished.
If durin the power on delay phase, the re ulator request should
disappear, due to an inhibition caused by the compressor
protection function, the foreseen start up of the output is naturally
cancelled.
Usin the parameter "PSC", it is possible to set the type of
compressor protection and therefore from when the inhibition time
“PtC” must start.
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 4

The parameter “PSC” can be set as:
= 1 : Power on delay
T e m p .
O u t
P tC
o ff
O N
S P
P tCP tC
"P S C " = 1
tim e
H S E t
o ff o ff o ff
O N O N
P r1
= 2 : Delay after power off
O N
O u t o ff
P tC P tC P tC
S P
T e m p . "P S C " = 2
tim e
H S E t
O N O N
o ff o ff
P r1
= 3 : Delay between power on phases.
P tC
O u t o ff
S P
O N
T e m p .
P tC P tC
tim e
H S E t
"P S C " = 3
o ff o ff
O N O N
P r1
The function is disabled by pro rammin “PtC” = 0.
Throu h the parameter “LCt” it is also possible to set the minimum
activation time of the output to avoid switchin on of the
compressor that is too short.
Durin the power on delay phases of the OUT output by inhibitin
the function “Compressor Protection” or delay of power off caused
by the minimum function time “LCt”, the led OUT flashes.
It is also possible to prevent activation of all the outputs after the
instrument is turned on, for the time set in the parameter “od”.
The function is disabled by “od” = OFF.
Durin the power on delay phase, the display shows the indication
od alternatin with the normal pro rammed visualisation.
4.6 - DEFROST CONTROL
All the parameters concernin the defrostin control that acts on
the outputs confi ured as “Out” and “dEF”, are container in the
roup “]dEF”.
The type of defrostin that the instrument must carry out is set by
the parameter “dtyP” that can be pro rammed:
= EL - WITH ELECTRICAL HEATING or BY STOPPING
COMPRESSOR (durin defrostin , the output “Out” is deactivated
while the output “dEF” is enabled)
= in - WITH HOT GAS or INVERSION OF CYCLE (durin
defrostin the outputs “Out” and “dEF” are enabled)
The automatic defrostin can take place at intervals or if the
instrument has an internal clock, at set hours.
Defrostin at intervals is possible by settin the time that runs
between the two next automatic defrostin s in the parameter
“dint”.
Countin this interval is set throu h the parameter "dCt" that can
be pro rammed:
= rt - counts the total function time (instrument on)
= ct - counts only the compressor function time (output OUT
switched on)
= cS - the instrument carries out a defrostin cycle at each
compressor stop (i.e. at each deactivation of the output OUT). If
this option is used, set “dint”=OFF.
if the instrument has an internal clock, it is possible to carry out up
to 6 defrostin s per day at set times.
To use this mode, it is necessary to set the parameter "dint"=OFF
so that the defrostin at intervals is disabled and to set the
parameters “dF 1” “dF 2” “dF 3” “dF 4” “dF 5” “dF 6” with
the times when the defrostin must be carried out.
The automatic defrostin cycle can be at time intervals or, if an
evaporator probe is used (Pr2), when a temperature is reached.
If the evaporator probe is not used (par. “Pr 2” = OFF) the duration
cycle is set by the parameter “dEFE”.
If instead the evaporator probe is used (parameter “Pr 2” = on) the
defrostin takes place when the temperature measured by the
probe exceeds the temperature set in the parameter “tEdF”.
If this temperature is not reached in the time set in the parameter
“dEFE”, defrostin is interrupted.
In order to avoid pointless defrostin the parameter. “tSdF” is
foreseen that sets the enablement temperature for defrostin
If the temperature measured by the probe is hi her than the one
set in the parameter “tSdF” and in the parameter "tEFE" the
defrostin is inhibited.
(NO def.)
(defrost)
tEdF
dEF off
ON
tSdF
dint
1
Pr2
Temp.
(defrost)
dint
dEFE
2
dint dint
3
time
off off
ON
Examples: defrosting 1 ends due to reaching of temperature
“tEd ”, defrosting 2 ends at the end of the “dE E” time as the
temperature “tEd ” is not reached, defrosting 3 does not take place
as the temperature is higher than “tSd ”.
At the end of defrostin , it is possible to delay the new start up of
the compressor (output “Out”) at the time set in parameter “tdCO”
to allow the evaporator to drain.
Durin this delay, the led Def flashes to indicate the drainin state.
It is also possible to prevent start up of the compressor near to
defrostin , to avoid waste of ener y.
If inside the time set in the parameter “COFd” (counted in advance
compared to the start up of automatic defrostin both at intervals
and by clock), an activation request for the output “Out” should take
place, this does not take place and it is si nalled by the flashin of
the Out led.
If one wishes to set a defrostin cycle every time the instrument is
switched on (as lon as the conditions set in the parameters “tSdF”
and "tEFE" apply) pro ramme the parameter “SdEF” = yES.
This allows the evaporator to be permanently defrosted, even when
frequent interruptions to power supply occur that may cause the
cancellation of the various defrostin cycles.
Durin the defrostin , it may occur that the temperature measured
by the cell probe (Pr1) increases excessively (this obviously
depends on the position of the probe Pr1 compared to the
evaporator).
In the event that one does not wish this increase to be visualised
by the instrument, it is possible to use the functions in the
parameter “dLo” (Block display durin defrostin ) and “Etdu”
(Differential unblockin of display after defrostin ).
The parameter “dLo” = On allows the temperature Pr1 visualisation
to be blocked on the last readin durin a whole defrostin cycle
and until the temperature does not return under the value [”SP” +
“Etdu”] after defrostin has finished (or the time set in the
parameter "dALd" contained in the block “]AL”).
With “dLo” = Lb, this allows visualisation of the writin dEF durin
defrostin and at the end of defrostin the writin PdEF up to when the
temperature Pr1 does not return below the value [”SP” + “Etdu”] (or the
time set on the parameter "dALd" contained in the block “]AL”).
Alternatively with the “dLo” = OFF, durin defrostin , the instrument will
continue to visualise the temperature measured by the probe Pr1.
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 5

Note that durin defrostin , the temperature alarms are disabled
durin the whole cycle and also afterwards for the time set in the
parameter “dALd” (see par. 4.9).
4.7 - MANUAL DEFROST
To start up a manual defrostin cycle, press the key UP/DEFROST
when it is not in pro rammin mode and keep it pressed for about 5
seconds after which, if the conditions are correct, the led DEF will
li ht up and the instrument will carry out a defrostin cycle.
The start-up or switch off commands of a defrostin cycle can also
be iven by the di ital input that are correctly pro rammed (see
par. 4.10).
4.8 - EVAPORATOR FANS CONTROL
All the parameters concernin fan control are contained in the
roup “]FAn”.
The control of the fans on the output confi ured as “FAn”
dependin on determined control statuses of the instrument and
the temperature measured by the probe Pr2.
In the case that the probe Pr2 is not used (parameter “Pr 2” = OFF)
or in error (E2 o -E2) , the output FAN is activated only dependin
on the parameters “FCOF” and “FEdF”.
The parameter “FCOF” decides whether the fans must always be
switched on independently of the compressor status (“FCOF”=On)
or be switched off to ether with the compressor (“FCOF”=OFF).
The parameter “FEdF” instead decides whether the fans must
always be switched on independently of the defrostin status
(“FEdF”=On) or switched off durin defrostin (“FEdF”=OFF).
In this latter case, it is possible to delay the start up of the fans
even after the end of the defrostin of the time set in the parameter
“Fd”.
When the probe Pr2 is used (par. “Pr 2” = on) the fans, as well as
bein conditioned by the parameters “FCOF” and “FEdF”, are also
conditioned by the temperature control.
It is possible to set the disablement of the fans when the
temperature measured by the probe Pr2 is hi her than the one set
in the parameter “FLt” (temperature too hot) or when it is lower
than the one set in the parameter “Fct” (temperature too cold).
The relative differential that can be set in parameter “dF” is also
associated with these parameters.
d F
d F
tim e
F A n o ff
O N
F c t
P r2
T e m p .
F L t
o ff o ff
O N
4.9 - ALARM FUNCTIONS
All the parameters concernin the alarm functions are contained in
roup “]AL”.
The alarm functions of the instrument work on the output desired, if
confi ured by the parameters “O1F”, “O2F”, “O3F”, “OF4”
dependin on what is set on the said parameters.
The possible selections of these parameters for the alarm si nallin
function are:
= ALt - when one wants the output to be activated in alarm and
can be disabled (alarm silencin ) manually by pressin any key of
the instrument (typical application for sound si nal).
= AL - when one wants the output to be activated in alarm status
but cannot be disabled manually and are therefore only disabled
when the alarm status ceases (typical application for a li ht si nal).
= ALL - when one wants the output to be activated in alarm status
and that they remain activated even when the alarm has ceased
(see par.4.9.4) Disablement (reco nition of memorised alarm) can
only be carried out manually by pressin any key when the alarm
has ended (typical application for li ht si nal).
= -ALt - when one wants the function described as ALt but with an
inverse function (output activated in normal condition and disabled
in alarm status).
= -AL - when one wants the function described as AL but with
inverse lo ic (output activated in normal conditions and disabled in
alarm status).
= -ALL - when one wants the function described as ALL but with
inverse workin lo ic (output activated in normal conditions and
disabled in alarm status).
When no alarms are present, the reen LED OK is lit.
Any active alarm is shown on the instrument display with the
li htin up of the AL led and the switchin off of the led OK.
Any silenced or memorised alarm status is shown by the AL led
flashin .
The alarm conditions of the instrument are:
- Probe errors “E1”, “-E1”, “E2, “-E2”
- temperature alarms “HI” and “LO”
- External alarms “AL”
- Open door alarm “AP”
4.9.1 - TEMPERATURE ALARMS
The temperature alarms work accordin to the probe Pr1
measurements, the type of alarm set in the parameter “Aty” the
alarm thresholds set in parameters “HAL” (maximum alarm) and
“LAL” (minimum alarm) and the relative differential “dAL”.
Throu h the parameter “Aty” it is possible to set the alarm
thresholds “HAL” and “LAL” which must be considered as absolute
(“Aty”=Ab)
d A L
d A L
tim e
A L o ff
O N
L A L
H I
H A L
T e m p .
P r1
L O
o ff o ff
O N
or relative to the active Set Point (“Aty”=dE).
tim e
d A L
d A L
A L o ff
O N
H I
L A L
S P
H A L
T e m p .
P r 1
L O
o ff o ff
O N
Usin some parameters it is also possible to delay the
enablement and the intervention of these alarms.
These parameters are:
“PAL” - is the temperature alarm exclusion time on switchin on
the instrument if the instrument is in alarm status when it is
switched on.
“dALd” - is the temperature alarm exclusion time at the end of
defrostin (and , if pro rammed, at the end of drainin )
"dALc" - is the temperature alarm exclusion time at the end of a
continuous cycle.
“ALd” - is the temperature alarm delay activation time
The temperature alarm is enabled at the end of exclusion time and
is enabled after the “ALd” time when the temperature measured by
the probe Pr1 exceeds or oes below the respective maximum and
minimum alarm thresholds.
The alarm thresholds will be the same as those set on the
parameters “HAL” and LAL” if the alarms are absolute (“Aty”=Ab)
Or will be the values [”SP”+”HAL”] and [”SP”-”LAL”] if the alarms
are relative (“Aty”=dE).
The maximum and minimum temperature alarms can be disabled
by settin the relative parameters "HAL" and "LAL" = OFF.
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 6

At the same time as the si nallin of the confi ured alarm (buzzer
and/or output), the instrument si nals the alarm by turnin on the
led li ht AL, switchin off the LED OK, turnin on the led - in case
of minimum alarm or the led + for maximum alarm, and visualises
on the display:
- Alternately HI and the set variable in parameter “diSP” for
maximum alarm
- Alternately LO and the set variable in parameter “diSP” for the
minimum alarm
4.9.2 - EXTERNAL ALARM
The instrument can si nal an external alarm by activatin the di ital
input with the function pro rammed as “diF” = 4 or 9 (see par.
4.10).
At the same time as the si nallin of the confi ured alarm, the
instrument si nals the alarm by turnin on the led AL, turnin off
the led OK and visualisin AL and the variable set in parameter
“diSP” alternately on the display.
4.9.3 - OPEN DOOR ALARM
The instrument can si nal an open door alarm by activatin the
di ital input with the function pro rammed as “din” = 5 or 6 (see
par. 4.10).
When the di ital input is activated and after the delay pro rammed
in parameter “oAd” the instrument si nals the alarm via the
activation of the confi ured devices (buzzer and/or output), the
turnin on of the led AL, the turnin off of the led OK and AP and
the variable set in parameter “diSP” are visualised alternately on
the display.
4.9.4 - ALARM MEMORY
The instrument offers the possibility of arran in the alarm memory
function via the parameter “tAL”.
If "tAL" = no, the instrument cancels the alarm si nal when the
alarm status ends, if instead it is pro rammed as "yES" , the led AL
flashes even when the alarm status has ended to indicate that
there has been an alarm.
If the memorised alarm is for temperature, it also keeps the led -
flashin to show a minimum alarm and + to show a maximum
alarm.
To cancel the alarm memory si nal, press any key.
It must be remembered that if an output function is desired with an
alarm memory (=ALL or =-ALL) it is necessary to set the parameter
“tAL” = yES.
4.10 - DIGITAL INPUT
All the parameters concernin the di ital input functions are
contained in the roup “]din”.
The di ital input present on the instrument accepts contacts free of
volta e, the function carried out is defined by the parameter “diF”
and the action can be delayed for the time set in parameter “did”.
The parameter “diF” can be confi ured for the followin functions:
= 0 - Di ital input not active
= 1 - defrostin commencement command with contact normally
open: on closin the input (and after the “did” time) a defrostin
cycle is activated.
= 2 - defrostin end command with contact normally open: on
closin the input (and after the “did” time) a defrostin cycle is
ended if in pro ress or defrostin is inhibited.
= 3 - continuous cycle activation command with contact normally
open: on closin the input (and after the “did” time) a continuous
cycle is started up as described in the para raph on the continuous
cycle function.
= 4 - External alarm si nal with contact normally open: on closin
the input (and after the “did” time) the alarm is activated and the
instrument visualises AL and the variable set in parameter “diSP”
alternately on the display.
= 5 -Cell door openin with fan block with contact normally open:
on closin the input (and after the “did” time) the fans are stopped
and the instrument visualises AP and the variable set in parameter
“diSP” alternately on the display. With this function mode, the
action of the di ital input also activates the time that can be set in
parameter "oAd" after which the alarm is activated to si nal that the
door has been left open.
= 6 - Cell door openin with compressor and fan block with contact
normally open: similar to “diF” = 5 but with fan and compressor
block.
= 7 - Remote control of auxiliary output AUX with contact normally
open: on closin the input (and after the “did” time) the auxiliary
output is activated as described in the "FOA" = 2 function mode of
the auxiliary output.
= 8 - Selectin the active set point with contact normally open: on
closin the input (and after the “did” time) the temperature
re ulation set point “SP 2” is activated. When instead the input is
open the set point “SP 1” is active (see selectin active set point)
= 9 - Si nallin of external alarm with disablement of all the control
outputs with contact normally open: on closin the input (and after
the “did” time) all the control outputs are disabled, the alarm is
activated and the instrument visualises AL and the variable set in
parameter “diSP” alternately on the display.
= 10 - Switchin on/switchin off (Stand-by) of instrument with
contact normally open: on closin the input (and after the “did”
time) the instrument is switched on while it is placed in Stand-by
when opened.
= -1 - defrostin commencement command with contact normally
closed : similar to “diF”=1 but with function lo ic reversed.
= -2 - defrostin end command with contact normally closed :
similar to “diF”=2 but with function lo ic reversed.
= -3 - continuous cycle start-up command with contact normally
closed : similar to “diF”=3 but with function lo ic reversed.
= -4 - External alarm si nal with contact normally closed : similar to
“diF”=4 but with function lo ic reversed.
= -5 - Cell door openin with fan block with contact normally
closed : similar to “diF”=5 but with function lo ic reversed
= -6 - Cell door openin with compressor and fan block with contact
normally closed : similar to “diF”=6 but with function lo ic reversed.
= -7 - Remote control of auxiliary output AUX with contact normally
closed : similar to “diF”=7 but with function lo ic reversed.
= -8 - Selectin the active set point with contact normally closed :
similar to “diF”=8 but with function lo ic reversed.
= -9 - Si nallin of external alarm with disablement of all the
outputs with contact normally closed : similar to “diF”=9 but with
function lo ic reversed
= -10 - Switchin on/off (Stand-by) of instrument: similar to “diF”=10
but with function lo ic reversed.
4.11 - AUXILIARY OUTPUT
All the parameters concernin the auxiliary output functions are
contained in the roup “]AuS”.
The auxiliary outpurt can be confi ured to operate on any of the
outputs by pro rammin the parameter of the desired output =
AuS.
The function carried out is defined by the parameter “FOA” and the
function is conditioned by the time set in parameter “tuA”.
The parameter “FOA” can be confi ured for the followin functions:
= 0 - Auxiliary output not active
= 1 - Re ulation output delayed with contact normally open: the
auxiliary output is activated with delay that can be set on the
parameter "tuA" compared to the output confi ured as Out. The
output is then turned off at the same time as the OUT output is
disabled. This function mode can be used as a command for a
second compressor or for all other workin utilities accordin to the
same OUT output conditions, but which must be delayed after the
start-up of the compressor to avoid excess electricity absorption.
= 2 - Activation by front key (U or DOWN/AUX) or by di ital input
with contact normally open: the output is activated by pressin the
keys U or DOWN/AUX suitably confi ured (“USrb” or “Fbd” = 1) or
via activation of the di ital input if suitably confi ured (“diF”=7).
These commands have a bi-stable function, Which means that
when first pressed, the output key is activated while the second is
disabled. In this mode, the AUX output can be turned off
automatically after a certain time that can be set on the parameter
"tuA". With "tuA" = OFF the output is activated and deactivated only
manually, usin the front key (U or DOWN/AUX) or via the di ital
input. Differently, the output, once activated, is turned off
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 7

automatically after the set time. This function can be used, for
example, as a cell li ht command, for non-mistin resistance or
other utilities.
4.12 - FUNCTIONING OF KEYS “U” AND “DOWN/AUX”
Two of the instrument keys, in addition to their normal functions,
can be confi ured to operate other commands.
The U key function can be defined by the parameter “USrb” while
the DOWN/AUX key function can be defined by the parameter
“Fbd” both contained in the roup “]PAn”.
Both the parameters have the same possibilities and can be
confi ured for the followin functions:
= 0 - The key carries out no function.
= 1 - Pressin the key for at least 1 second, it is possible to
enable/disable the auxiliary output if confi ured (“FOA”=2).
= 2 - Pressin the key for at least 1 second, it is possible to
enable/disable a continuous cycle (see continuous cycle function).
= 3 - Pressin the key for at least 1 second, it is possible to select
one of the 2 memorised set point in rotation. Once selection has
been made, the display will flash the active set point code for about
1 sec. (SP 1or SP 2).
= 4 - Pressin the key for at least 1 second, it is possible to switch
the instrument from the ON status to Stand-by status and vice
versa.
4.13 - PARAMETERS CONFIGURATION BY “A01”
The instrument is equipped with a connector that allows the
transfer from and toward the instrument of the functionin
parameters throu h the device A01 with 5 poles connector.
This device it’s mainly useable for the serial pro rammin of the
instruments which need to have the same parameters confi uration
or to keep a copy of the pro rammin of an instrument and allow its
rapid retransmission.
To use the device A01 it’s necessary that the device or instrument
are bein supplied.
Instrument supplied and device not supplied
SUPPLY
Instrument supplied from the device
SUPPLY ADAPTER
12 VDC AC SUPPLY
To transfer the confi uration of an instrument into the device
(UPLOAD) it is necessary to proceed in the followin way:
1) position both dip switch of A01 in the OFF mode.
2) connect the device to the instrument TLY plu in the special
connector.
3) verify that the instrument or the device are supplied
4) observe the indication led on the device A01: if it results reen
this means that a confi uration is already loaded on the device
while if it results reen blinkin or red blinkin this means that it has
not been loaded any valid confi uration on the device .
5) press the button placed on the device.
6) observe the indication led : after havin pressed the button, the
led becomes red and therefore, at the end of the data transfer, it
becomes reen.
7) now it is possible to disconnect the device.
To transfer the confi uration loaded on the device onto an
instrument of the same family (DOWNLOAD), it is necessary to
proceed in the followin way:
1) position both dip switch of A01 in the ON mode.
2) connect the device to an instrument TLY havin the same
features of the one from which has been downloaded the desired
confi uration, plu in the special connector.
3) verify that the instrument or the device are supplied.
4) observe the indication led on the device A01: it has to result
reen, because if the led results reen blinkin or red blinkin , this
means that on the device it has not been downloaded any valid
confi uration and therefore it’s useless to continue.
5) if the les results reen, press the button placed on the device.
6) observe the indication led : after havin pressed the button, the
led becomes red and therefore, at the end of the data transfer, it
becomes reen.
7) now it is possible to disconnect the device.
or additional info, please have a look at the A01 instruction
manual.
5 - PROGRAMMABLE PARAMETERS TABLE
Here below is a description of all the parameters available on the
instrument. Some of them may not be present, either due to the
fact they depend on the type of instrument or because they are
automatically disabled as unnecessary.
Group ]SP (parameters relative to Set Point)
Par. Description Range Def. Note
1SPAt Active Set point 1 ÷ 2 1
2SP1 Set Point 1 SPLL ÷ SPHL 0.0
3SP2 Set Point 2 SPLL ÷ SPHL 0.0
4SPLL Minimum Set Point -58 ÷ SPHL -50.0
5SPHL Maximum Set Point SPLL ÷ 302 100.0
Group ]InP (parameters relative to measurin inputs)
Par. Description Range Def. Note
6SEnS Probes Type Ptc - ntc Ptc
7OFS1 Pr1 Probe (cell)
Calibration
-30 ÷ 30
°C/°F
0.0
8OFS2 Pr2 Probe (evaporator)
Calibration
-30 ÷ 30
°C/°F
0.0
9Pr 2 Pr2 Probe Presence
(evaporator)
On - OFF On
10 Unit Unit of measurement °C - °F °C
11 dP Decimal point On - OFF On
12 FiL Measurement filter OFF ÷ 20.0
sec
2.0
13 diSP Variable visualized
normally on display:
OFF=Display off
Pr1= measurement
probe Pr1
Pr2= measurement
probe Pr2
SP= Active Set Point
CL= Clock time
OFF - Pr1 -
Pr2 - SP - CL
Pr1
Group ]rEG (parameters relative to temperature control)
Par. Description Range Def. Note
14 HSEt Differential 0 ÷ 30
°C/°F
2.0
15 tonE Activation time output
OUT for probe Pr1
broken
OFF ÷ 99.59
min.sec
OFF
16 toFE Deactivation time
output OUT for probe
Pr1 broken
OFF ÷ 99.59
min.sec
OFF
17 Func Function mode output
OUT
HEAt - CooL CooL
18 tCC Continuous cycle Time OFF ÷ 99.59
hrs.min
OFF
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Group ]dEF (parameters relative to defrostin control)
Par. Description Range Def. Note
19 dtyP Defrostin Type:
EL = electrical
in = hot as/reverse
cycle
EL - in EL
20 dint Defrostin interval OFF ÷ 99.59
hrs.min
6.00
21 dF 1 Time start defrost 1 OFF - 00.00 ÷
23.59 hrs.min
OFF
22 dF 2 Time start defrost 2 OFF - 00.00 ÷
23.59 hrs.min
OFF
23 dF 3 Time start defrost 3 OFF - 00.00 ÷
23.59 hrs.min
OFF
24 dF 4 Time start defrost 4 OFF - 00.00 ÷
23.59 hrs.min
OFF
25 dF 5 Time start defrost 5 OFF - 00.00 ÷
23.59 hrs.min
OFF
26 dF 6 Time start defrost 6 OFF - 00.00 ÷
23.59 hrs.min
OFF
27 dEFE Max. len ht of defrost
cycle
0.01 ÷ 99.59
min.sec
30.00
28 tEdF Defrost stop
temperature
- 58 ÷ 302
°C/°F
8.0
29 tSdF Defrost enable
temperature
- 58 ÷ 302
°C/°F
2.0
30 dCt Defrostin intervals
Countin mode:
rt = real time
ct = On OUT time
cS = defrost every off
OUT
rt - ct - cS rt
31 tdCO Compressor delay after
defrost (draina e time)
OFF ÷ 99.59
min.sec
OFF
32 SdEF Defrost at power on no - yES no
33 dLo Defrost display
LockOFF= display
freeOn= Lock on
temperature Pr1 before
defrostLb= Lock on
label “dEF” (durin
defrostin ) and “PdEF”
(durin post-defrostin )
On - OFF - Lb OFF
34 Etdu Differential display
unlock after defrost
0 ÷ 30
°C/°F
2.0
35 COFd Time compressor off
before defrost
OFF ÷ 99.59
min.sec
OFF
Group ]FAn (parameters relative to evaporator fan control)
Par. Description Range Def. Note
36 FCOF Fan status with
compressor off
On - OFF On
37 FEdF Fan status durin defrost On - OFF OFF
38 FLt Hi h temperature fan
off
- 58 ÷ 302
°C/°F
2.0
39 Fct Low temperature fan off - 58 ÷ 302
°C/°F
-50.0
40 dF Differential fan control 0 ÷ 30
°C/°F
2.0
41 Fd Fan delay after defrost OFF ÷ 99.59
min.sec
OFF
Group ]PrC (parameters relative to compressor protection and
power on delay)
Par. Description Range Def. Note
42 PSC Type of compressor
protection:
1= delay at switch on
2= delay after switch off
3= delay between starts
1 - 2 - 3 1
43 PtC Compressor protection
time
OFF ÷ 99.59
min.sec
OFF
44 LtC Minimum compressor OFF ÷ 99.59 OFF
function time min.sec
45 od Delay at power on OFF ÷ 99.59
min.sec
OFF
Group ]AL (parameters relative to alarms)
Par. Description Range Def. Note
46 Aty Temperature alarms
Type:
Ab = Absolute
dE =Relative to Set
Ab - dE Ab
47 HAL Hi h temperature Alarm
threshold
OFF / - 58 ÷
302 °C/°F
OFF
48 LAL Low temperature Alarm
threshold
OFF / - 58 ÷
302 °C/°F
OFF
49 dAL Temperature Alarms
Differential
0 ÷ 30
°C/°F
2.0
50 ALd Temperature Alarms
delay
OFF ÷ 99.59
min.sec
OFF
51 tAL Alarm memory no - yES no
52 PAL Temperature Alarms
delay at power on
OFF ÷ 99.59
hrs.min
2.00
53 dALd Temperature Alarms
delay and unlock
display delay after
defrost
OFF ÷ 99.59
hrs.min
1.00
54 dALc Temperature alarms
delay after continuous
cycle
OFF ÷ 99.59
hrs.min
OFF
55 oAd Alarm delay with open
door
OFF ÷ 99.59
min.sec
OFF
Group ]din (parameters relative to di ital input)
Par. Description Range Def. Note
56 diF Function and function
lo ic of di ital input:
0 = No function
1= Start defrost
2= End defrost
3= Continuous cycle
4= External alarm
5= Door open with fan
block
6= Door open with fan
and compressor block
7= Auxiliary output
command
8= Selection of active
Set Point
9= External alarm with
deactivation of control
outputs
10= Switch on/Switch
off (Stand-by)
-10 / -9 / -8 / -
7 / -6 / -5 / -
4 / -3 / -2 / -
1 / 0 / 1 / 2 / 3
/ 4 / 5 / 6 / 7 /
8 / 9 / 10
0
57 did Delay in acquirin
di ital input
OFF ÷ 99.59
min.sec
OFF
Group ]AuS (parameters relative to auxiliary output)
Par. Description Range Def. Note
58 FOA Function mode auxiliary
output:
0= No Function
1= re ulation output
delayed
2= manual activation by
key or di ital input.
0 / 1 / 2 0
59 tuA Time relative to
auxiliary output
OFF ÷ 99.59
min.sec
OFF
Group ]Out (parameters relative to confi uration of outputs)
Par. Description Range Def. Note
60 Out1 Confi uration of output
function OUT1:
OFF= No function
Out= Temperature
control (compressor)
OFF/Out/dEF/
FAn/AuS/ALt/
AL/ALL/ -ALt/
-AL/ -ALL
Out
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dEF= defrostin
FAn= fans
AuS= Auxiliary
ALt= Silenceable alarm
AL= Alarm not
silenceable
ALL= memorised alarm
61 Out2 Confi uration of output
function OUT2:
see “Out1”
OFF/Out/dEF/
FAn/AuS/ALt/
AL/ALL/ -ALt/
-AL/ -ALL
dEF
62 Out3 Confi uration of output
function OUT3:
see “Out1”
OFF/Out/dEF/
FAn/AuS/ALt/
AL/ALL/ -ALt/
-AL/ -ALL
FAn
63 Out4 Confi uration of output
function OUT4:
see “Out1”
OFF/Out/dEF/
FAn/AuS/ALt/
AL/ALL/ -ALt/
-AL/ -ALL
ALt
Group ]PAn (parameters relative to confi uration of the keyboard)
Par. Description Range Def. Note
64 Fbd Function mode key
DOWN/AUX:
OFF= No function
1= Auxiliary output
command
2= Continuous cycle
command
3= Selection of active
Set Point
4= Switch on/Switch off
(Stand-by)
OFF / 1 / 2 / 3
/ 4
OFF
65 USrb Function mode key U:
see “Fbd”
OFF / 1 / 2 / 3
/ 4
OFF
66 PASS Access Password to
parameter functions
OFF ÷ 9999 OFF
Group ]CLO (parameters relative to the internal clock)
Par. Description Range Def. Note
67 StCL Current time 0.00 ÷ 23.59
hrs.min
0.00
68 CLOF Daily calibration of
clock
-20 ÷ 20
sec
0
6 - PROBLEMS MAINTENANCE AND WARRANTY
6.1 - SIGNALLING
Error Si nallin :
Error Reason Action
E1
-E1
The probe Pr1 may be
interrupted or in short circuit,
or may measure a value
outside the ran e allowed
Check the correct
connection of the
probe with the
instrument and check
the probe works
correctly
E2
-E2
The probe Pr2 may be
interrupted or in short circuit,
or may measure a value
outside the ran e allowed
EEPr Internal memory error Check and if
necessary re-
pro ramme the
parameters function.
In Cell probe error status, the output OUT behaves as set by the
parameters “tonE” and “toFE”.
HI Maximum temperature alarm in pro ress
LO Minimum temperature alarm in pro ress
AL Di ital input alarm in pro ress
AP Door open
6.2 - CLEANING
We recommend cleanin of the instrument with a sli htly wet cloth
usin water and not abrasive cleaners or solvents which may
dama e the instrument.
6.3 - WARRANTY AND REPAIRS
The instrument is under warranty a ainst manufacturin flaws or
faulty material, that are found within 18 months from delivery date.
The warranty is limited to repairs or to the replacement of the
instrument.
The eventual openin of the housin , the violation of the instrument
or the improper use and installation of the product will brin 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 sendin the instrument to our
company.
The faulty product must be shipped to Ascon Tecnolo ic with a
detailed description of the faults found, without any fees or char e
for Ascon Tecnolo ic, except in the event of alternative
a reements.
7 - TECHNICAL DATA
7.1 - ELECTRICAL DATA
Power supply: 12 VAC/VDC, 100..240 VAC +/- 10%
Frequency AC: 50/60 Hz
Power consumption: 3 VA approx.
Input/s: 2 inputs for temperature probes: PTC (KTY 81-121,
990  @ 25 °C) or NTC (103AT-2, 10K @ 25 °C); 1 di ital
input for free volta e contacts
Output/s: 4 relay outputs SPST-NO. 16 A Max. for common (pin. 1).
supply H type : OUT1 (16A-AC1, 6A-AC3 250 VAC), OUT 2,3,4
(5A-AC1, 2A-AC3 250 VAC).
supply F type: OUT1 (16A-AC1, 6A-AC3 250 VAC), OUT 2,3,4 (8A-
AC1, 3A-AC3 250 VAC)
Electrical life for relay outputs: 100000 operat. (VDE om.)
Installation cate ory: II
Measurement cate ory: I
Protection class a ainst electric shock: Class II for Front panel
Insulation: Reinforced insulation between the low volta e part
(supply H type and relay outputs) and front panel; Reinforced
insulation between the low volta e section (supply type H and relay
outputs) and the extra low volta e section (inputs); Reinforced
between supply and relay outputs; No insulation between supply F
type and inputs.
7.2 - MECHANICAL DATA
Housin : Self-extin uishin plastic, UL 94 V0
Dimensions: 33 x 75 mm, depth 64 mm
Wei ht: 115 approx.
Mountin : Flush in panel in 29 x 71 mm hole
Connections: 2,5 mm2 screw terminals block
De ree of front panel protection : IP 65 mounted in panel with
asket
Pollution situation: 2
Operatin temperature: 0 ... 50 °C
Operatin humidity: 30 ... 95 RH% without condensation
Stora e temperature: -10 ... +60 °C
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 10
Other Si nallin :
Message Reason
od Delay in switchin on in pro ress
dEF Defrostin in pro ress with “dLo”=Lb
PdEF Post-defrostin in pro ress with “dLo”=Lb
CC Continuous cycle in pro ress

7.4 – FUNCTIONAL FEATURES
Temperature Control: ON/OFF mode
Defrost control: interval cycles or at pro rammed times (Real Time
Clock Defrostin ) by Electric Heatin or hot- as / reverse cycle
Measurement ran e: PTC: -50...150 °C / -58 ... 302 °F;
NTC: -50...109 °C / -58...228 °F
Display resolution: 1 ° or 0,1°
Overall accuracy: +/- 0,5 % fs
Samplin rate: 130 ms.
Display: 4 Di it Red h 12 mm
Endurance time of the internal clock without power supply: 4 hours
approx. by internal condenser
Compliance: ECC directive EMC 2004/108/CE (EN 61326), ECC
directive LV 2006/95/CE (EN 61010-1)
7.5 - INSTRUMENT ORDERING CODE
TLY 25 a b cc d
a : POWER SUPPLY
H = 100...240 VAC
F = 12 VAC/VDC
b : REAL TIME CLOCK DEFROSTING
C = Yes
-= No
cc : SPECIAL CODES
d : SPECIAL VERSIONS
Ascon Tecnolo ic - TLY25 - OPERATING INSTRUCTIONS - PAG. 11
7.3 – MECHANICAL DIMENSIONS, PANEL CUT-OUT AND
MOUNTING [mm]
TYPE 1
PANEL + GASKET
PANEL + GASKET
TYPE 2
BRACKET
TYPE 1
BRACKETS
TYPE 2
86
74
43
31
34
MAX 12 mm
MAX 29 mm
min. 15 mm
71
RECOMMENDED
PANEL CUTOUT
min. 12 mm
29
78 5.5 64
TLY25
U
P
OK
Out Def Fan
Aux
35