TLY26
MICROPROCESSOR-BASED
DIGITAL ELECTRONIC FREEZER
CONTROLLER
OPERATING INSTRUCTIONS
Vr. 02 (ENG) - 04/14 - cod.: ISTR MTLY26ENG02
Ascon Tecnologic S.r.l.
Viale Indipendenza 56
27029 Vigevano (PV) ITALY
TEL.: +39 0381 69871
FAX: +39 0381 698730
http:\\www.ascontecnologic.com
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 S.r.l. which forbids any reproduction and
divulgation, even in part, of the document, unless expressly
authorized.
Ascon Tecnologic S.r.l. 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 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.
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
RS 485 SERIAL INTERFACE
4.14
ACCESSORIES
4.14.1 PARAMETERS CONFIGURATION BY “KEY0”
4.14.2 PARAMETERS CONFIGURATION BY “KEY02”
4.14.3 “TVR Y” REMOTE DISPLAY
5
PROGRAMMABLE PARAMETERS TABLE
6
PROBLEMS , MAINTENANCE AND GUARANTEE
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
7.4
FUNCTIONAL DATA
7.5
INSTRUMENT ORDERING CODE
1 - INSTRUMENT DESCRIPTION
1.1 - GENERAL DESCRIPTION
The model TLY 26 is a digital controller with microprocessor that is
typically used in cooling applications that have temperature control
with ON/OFF regulation and defrosting control with set time and
hours intervals (Real Time Clock Defrosting) by means of electrical
heating or hot gas/reverse cycle.
The instrument has up to 4 relay outputs, two inputs for PTC or NTC
temperature probes and a digital input, that can all be configured.
The 4 outputs can be used for controlling the compressor or the
temperature control device (OUT), the defrosting device (DEF), the
evaporation fan (FAN), an alarm (AL) or, alternatively any of the
previous functions, using an auxiliary device (AUX).
The instrument has then an internal buzzer to signalise the alarms.
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
digital input (DIG) can be programmed to carry out various functions
such as defrosting commands, selecting a different set of
Ascon Tecnologic - TLY26
- OPERATING INSTRUCTIONS - Vr. 02 - 04/14 - ISTR MTLY26ENG02 - PAG. 1
