Ascon tecnologic TLZ 12 P User Manual

ASCON TECNOLOGIC - TLZ 12 P - OPERATING INSTRUCTIONS - Vr.02 - ISTR-MTLZ12PENG02- PAG. 1
MICROPROCESSOR-BASED
DIGITAL ELECTRONIC FREEZER
CONTROLLER
OPERATING INSTRUCTIONS
Vr. 02 (ENG) - cod.: ISTR-MTLZ12PENG02
ASCON TECNOLOGIC S.r.l.
VIA INDIPENDENZA 56
27029 VIGEVANO (PV) ITALY
TEL.: +39 0381 69871
FAX: +39 0381 698730
www.ascontecnologic.com
info@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 Srl which forbids any reproduction and
divulgation , even in part, of the document, unless expressly
authorized.
ASCON TECNOLOGIC Srl 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 Srl 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 ON / STAND-BY FUNCTION
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 TEMPERATURE CONTROL
4.3
COMPRESSOR PROTECTION FUNCTION AND DELAY
AT POWER-ON
4.4 DEFROST CONTROL
4.5 MANUAL DEFROST
4.6 ALARM FUNCTIONS
4.6.1 TEMPERATURE ALARMS
4.6.2 EXTERNAL ALARM
4.7 DIGITAL INPUT
4.8 FUNCTION OF KEY “U”
4.9 PARAMETERS CONFIGURATION BY A01
5 PROGRAMMABLE PARAMETERS TABLE
6 PROBLEMS , MAINTENANCE AND GUARANTEE
6.1 SIGNALLING
6.2 CLEANING
6.3 GUARANTEE 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 TLZ 12 P 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
by means of stopping compressor.
The instrument has up to 2 relay outputs, one input for Pt1000 or
NTC (PT-24C2 up to 300°C) temperature probes and a digital input,
that can be configured.
The 2 outputs can be used for controlling the compressor or the
temperature control device (OUT) and an alarm (AL).
The instrument is equipped with 4 programme keys, a 4-digit
display and 3 LED signals, in addition to an internal buzzer that is
the sound system for alarms.
Other important characteristics of the instrument are: programme
parameters protection using personalised password, switching on
and off (stand-by) of the instrument using the “U” front key,
configuration of parameters via the A01 device and the possibility
of power supply in the range 100 ... 240 VAC.
1.2 - FRONT PANEL DESCRIPTION
Def
TLZ 12
1
5
2
3
4
Out AL
8
6
7
TLZ 12 P

Ascon tecnologic TLZ 12 P Specifications

General

Number of Outputs	Up to 2
Protection	IP65 (front panel)
Operating Temperature	0 to 50 °C
Input	Thermocouple
Output	Relay
Control Mode	PID, ON/OFF
Dimensions	48 x 48 mm
Output Current	20mA

Summary

INSTRUMENT DESCRIPTION

GENERAL DESCRIPTION

Overview of the TLZ 12 P digital controller, its applications, and typical uses in cooling systems.

FRONT PANEL DESCRIPTION

Details the layout and components of the controller's front panel, including display, keys, and indicators.

PROGRAMMING

SET POINT AND PARAMETER ACCESS

Instructions on setting the temperature set point and accessing/modifying instrument parameters.

PROGRAMMING LEVELS & STAND-BY

Explains parameter access levels, password protection, and the ON/Stand-by function of the instrument.

INSTALLATION AND USE

PERMITTED USE AND SAFETY

Defines intended applications, safety precautions, and environmental considerations for instrument installation.

MECHANICAL AND ELECTRICAL INSTALLATION

Provides guidance on physical installation, including mounting, and details electrical connections and wiring.

FUNCTIONS

MEASUREMENT, CONTROL & PROTECTION

Covers measuring, temperature control logic, and compressor protection functions.

DEFROST AND DIGITAL INPUT CONTROL

Details defrosting cycles, manual defrost initiation, and digital input configuration options.

ALARM HANDLING AND TYPES

Explains alarm signaling, silencing, and covers temperature and external alarm conditions.

PARAMETER MANAGEMENT

KEY 'U' AND A01 CONFIGURATION

Explains the function of the 'U' key and the process for configuring parameters using the A01 device.

PROGRAMMABLE PARAMETERS TABLE

A comprehensive list of all configurable parameters, their ranges, default values, and descriptions.

MAINTENANCE AND TECHNICAL DATA

TROUBLESHOOTING AND SIGNALLING

Interprets error codes and status messages for diagnostics and operational issues.

CLEANING, GUARANTEE AND DATA

Provides cleaning instructions, warranty terms, repair procedures, and technical specifications.

FINAL SPECIFICATIONS

FUNCTIONAL FEATURES

Summarizes key operational features of the instrument, including measurement range and accuracy.

INSTRUMENT ORDERING CODE

Explains the structure and options for ordering the TLZ 12 P instrument.