Ascon tecnologic Y39 User Manual

Ascon Tecnologic - Y39 Line - Operating Instructions - Pag. 1
Y39 - Y39S
DIGITAL ELECTRONIC
REFRIGERATION UNITS
CONTROLLER
OPERATING INSTRUCTIONS
20/04 - code: ISTR_M_Y39-_E_04_--
Ascon Tecnologic S.r.l.
Viale Indipendenza 56, 27029 Vigevano (PV) - ITALY
Tel.: +39 0381 69871 - Fax: +39 0381 698730
Sito: http:\\www.ascontecnologic.com
e-mail: info@ascontecnologic.com
PREFACE
m
This manual contains the information necessary for
the product to be installed correctly and also instruc-
tions for its maintenance and use; we therefore recom-
mend 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
partially, 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.
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 features.
m
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 electromechanical devices
which will guarantee safety.
1 INSTRUMENT DESCRIPTION
1.1 General Description
Y39 is a digital controller with microprocessor that is typically
used in cooling applications that have temperature control
with ON/OFF control and defrosting control at intervals
time or at reaching temperature by stopping compressor or
by means of electrical heating or hot gas/reverse cycle.
The instrument has up to 3 relay outputs, up to 3 inputs for
PTC or NTC temperature probes and a digital input (alterna-
tive to a temperature input), in addition can be equipped with
an internal buzzer that is the sound system for alarms.
The 3 outputs can be can all be configured for controlling the
compressor or the temperature control device, the defrosting
device, the evaporation fan or, alternatively any of the previ-
ous functions, using an auxiliary device or an alarm.
The 3 inputs for temperature probes can be used to measure
the control temperature, the evaporator temperature, prod-
ucts or aux temperature, while the digital input alternative to
evaporator or Aux temperature input can be programmed
to carry out various functions such as door opened signal,
defrosting commands, selecting a different set of temperature
Index
1 Instrument description ............................................. 1
1.1 General description ......................................................... 1
1.2 Front Panel Description ................................................... 2
2 Programming ............................................................. 2
2.1 Fast Set Point programming ............................................ 2
2.2 Standard mode parameters programming ...................... 2
2.3 Parameter Protection Using a Password ........................ 2
2.4 Customized mode parameters programming
(parameters programming level) ..................................... 3
2.5 Reset Parameters to Default Value ................................. 3
2.6 Keyboard lock function .................................................... 3
3 Usage Warnings ........................................................ 4
3.1 Admitted usage ............................................................... 4
4 Installation warnings ................................................. 4
4.1 Mechanical mounting ...................................................... 4
4.2 Dimensions [mm] ............................................................ 4
4.3 Electrical connections ..................................................... 5
5 Functions ................................................................... 5
5.1 ON/STAND-BY Function ................................................. 5
5.2 Measure and display configuration ................................. 5
5.3 Digital Input Configuration ............................................... 6
5.4 Outputs and buzzer configuration ................................... 6
5.5 Active Set Point selection ................................................ 7
5.6 Temperature control ........................................................ 7
5.7 Compressor Protection Function and Delay at Power-ON ... 7
5.8 Defrost Control ................................................................ 8
5.9 Evaporator Fans Control ................................................. 9
5.10 Alarm Functions .............................................................. 10
5.11 Function of keys and /Aux ................................ 11
6 Accessories ............................................................... 11
7 Programmable parameters table .............................. 12
6.3 RS 485 Serial Interface by TLCNV ................................. 12
8 Problems and Maintenance ...................................... 15
8.1 Error messages ............................................................... 15
8.2 Other messages .............................................................. 15
8.3 Cleaning .......................................................................... 15
8.4 Disposal .......................................................................... 15
9 Warranty and Repairs ............................................... 15
10 Technical Data ........................................................... 15
10.1 Electrical Data ................................................................. 15
10.2 Mechanical Data ............................................................. 15
10.3 Functional Features ........................................................ 16
11 How to order .............................................................. 16

Ascon tecnologic Y39 Specifications

General

Processor	Unknown
Clock Speed	Unknown
Flash Memory	Unknown
RAM	Unknown
Operating Voltage	Unknown
Digital I/O Pins	Unknown
Analog Input Pins	Unknown
Communication Interfaces	RS-485 Modbus RTU

Summary

INSTRUMENT DESCRIPTION

General Description

Provides an overview of the digital controller and its primary applications in cooling systems.

Front Panel Description

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

PROGRAMMING

Fast Set Point Programming

Explains the procedure for quickly setting the desired temperature set point.

Standard Mode Parameters Programming

Guides users through parameter programming when password protection is disabled.

Parameter Protection Using a Password

Describes how to implement and use a password to protect controller parameters from unauthorized changes.

USAGE WARNINGS

Admitted Usage

Outlines the intended use, operating conditions, and safety precautions for the instrument.

INSTALLATION WARNINGS

Mechanical Mounting

Provides instructions and considerations for the physical installation and mounting of the instrument.

Panel Installation and Dimensions

Details the required panel cut-out, mounting brackets, and overall instrument dimensions.

Electrical Connections

Explains how to correctly wire the instrument, including power supply and input/output connections.

FUNCTIONS

ON/STAND-BY Function

Describes how to switch the controller between active operation and standby mode.

Measure and Display Configuration

Covers probe selection, unit of measurement, resolution, and display settings.

Digital Input Configuration

Details the various functions that can be assigned to the digital input terminal.

Outputs and Buzzer Configuration

Explains how to configure the relay outputs and the internal buzzer for different functions.

Active Set Point Selection

Allows setting and selecting between two different temperature set points (SP and SP2).

Temperature Control

Explains the ON/OFF temperature control logic based on set points and hysteresis.

Compressor Protection and Power-ON Delay

Details features to protect the compressor from short cycling and manage power-on delays.

Defrost Control

Covers various methods for managing defrost cycles, including timing and evaporator temperature.

Automatic Defrost Start

Explains how automatic defrost cycles are initiated based on intervals or power-on delays.

Evaporator Fans Control

Describes how the evaporator fan output is controlled based on temperature and operating modes.

Alarm Functions

Details the different types of alarms (probe error, temp, external, door) and their signaling.

Temperature Alarms

Explains configuration of temperature alarms, thresholds, and relative/absolute settings.

External Alarm from Digital Input

Describes how to use a digital input to signal an external alarm condition.

Open Door Alarm

Explains the function and signaling for door opening alarms.

Key Function Customization

Allows customization of the 'U' and 'Aux' keys for specific operational functions.

ACCESSORIES

Parameters Configuration by A01

Details the use of the A01 device for transferring and configuring instrument parameters.

TVR Y Remote Display

Explains how to connect and use the TVR Y remote display unit.

RS 485 Serial Interface

PROBLEMS AND MAINTENANCE

Error Messages and Actions

Lists common error codes, their reasons, and the recommended actions to resolve them.

Other System Messages

Explains various status messages displayed by the instrument during operation.

Cleaning Procedures

Provides guidance on how to clean the instrument safely and effectively.

Disposal Guidelines

Informs about the proper disposal of the appliance in compliance with local regulations.

WARRANTY AND REPAIRS

TECHNICAL DATA

Electrical Specifications

Specifies the electrical characteristics, power supply, and output ratings of the instrument.

Mechanical Specifications

Details the mechanical specifications, dimensions, materials, and operating environment.

Functional Features Summary

Summarizes key functional capabilities like temperature control, defrost, and measurement ranges.

HOW TO ORDER