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[ Pobierz całość w formacie PDF ]EWCM 4120-4150-4180
EN
e
Compact controller for compressor plants
1
Summary
INTRODUCTION - CHaracteristics ............................................................................................................................................................ 4
CONDITIONS OF USE................................................................................................................................................................................... 4
MECHANICAL ASSEMBLY............................................................................................................................................................................ 7
WIRING DIAGRAMS...................................................................................................................................................................................... 7
CONNECTION DIFFERENCES BETWEEN EWCM412/415/418 and EWCM4120/4150/4180 .......................................................13
BASIC FUNCTIONS .....................................................................................................................................................................................14
LEDs........................................................................................................................................................................................................14
Displays in particular states..............................................................................................................................................................15
Keys........................................................................................................................................................................................................16
User interface configuration............................................................................................................................................................17
Main display .........................................................................................................................................................................................19
Password and visibility.......................................................................................................................................................................19
Accessing and using the menus ......................................................................................................................................................20
Machine state menu ..........................................................................................................................................................................20
Programming menu ...........................................................................................................................................................................21
CONFIGURING THE MACHINE.................................................................................................................................................................21
1) ANALOGUE INPUTS (AI3, AI4)....................................................................................................................................................21
3) HIGH/LOW VOLTAGE DIGITAL OUTPUTS (DO1…DO6) ........................................................................................................25
4) PWM/OPEN COLLECTOR OUTPUTS AO1 AND AO2 .............................................................................................................26
5) TRIAC TC OUTPUT.........................................................................................................................................................................29
6) LOW VOLTAGE ANALOGUE AO3 OUTPUT .............................................................................................................................30
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COMPRESSOR CONTROL ..........................................................................................................................................................................31
Inverter compressor control............................................................................................................................................................32
Digital compressor control...............................................................................................................................................................34
Compressor timing.............................................................................................................................................................................36
Power stages ........................................................................................................................................................................................37
Compressor switch-on policies .......................................................................................................................................................37
CONDENSATION CONTROL.....................................................................................................................................................................39
INVERTER COMPRESSOR CONTROL ..............................................................................................................................................40
DIGITAL FAN CONTROL....................................................................................................................................................................44
ADVANCED FUNCTIONS...........................................................................................................................................................................49
On/off device ......................................................................................................................................................................................49
Recording operating hours ..............................................................................................................................................................50
Real Time Clock (RTC).......................................................................................................................................................................50
ALARMS ........................................................................................................................................................................................................51
Alarms list with description and activation parameters............................................................................................................53
Alarm list with actions and notes ...................................................................................................................................................55
Alarms log ............................................................................................................................................................................................58
SERIAL CONFIGURATION..........................................................................................................................................................................59
PARAMETERS LIST ......................................................................................................................................................................................61
NAVIGATION MENU DIAGRAMS ............................................................................................................................................................69
ACCESSORY PRODUCTS............................................................................................................................................................................72
TECHNICAL DATA.......................................................................................................................................................................................73
Mechanical characteristics ...............................................................................................................................................................73
Electrical characteristics....................................................................................................................................................................73
Input/Output characteristics............................................................................................................................................................73
3
INTRODUCTION - CHARACTERISTICS
The EWCM is a device which represents a family of controllers dedicated to managing the production room of a
refrigerator plant:
Configurable user interface.
Configurable navigation menu.
Alarms log.
Temperature control via inlet probe depending on configuration and installation.
Condensation control via outlet probe depending on configuration and installation.
NTC, 4…20 mA, 0…5V or 0.10V parameter-configurable inputs.
Parameter settings via keyboard or PC.
Copy card for uploading and downloading parameter maps.
Control of a single circuit with up to 4 compressors (or combination of compressors) whole or segmented with
up to 4 power
stages
/inverter compressor.
Condensation control with inverter fan or up to 4 digital fans.
CONDITIONS OF USE
Permitted use
This device is intended for controlling compressor plants.
For safety reasons, the instrument must be installed and used according to the instructions provided and in particular,
under normal conditions, parts bearing dangerous voltages must not be accessible. The device must be adequately
protected from water and dust as per the application, and must also only be accessible via the use of tools (with the
exception of the frontlet).
The device is ideally suited for use in household appliances and/or similar refrigeration equipment and has been
tested with regard to the aspects concerning European reference standards on safety. It is classified as follows:
4
according to its manufacture: as an independently mounted or integrated automatic electronic control device
to be incorporated;
according to its automatic operating features, as a 1 B-type operated control type;
as a Class A device in relation to the category and structure of the software;
as a device with pollution grade 2;
as a device with class D fire resistance;
overvoltage category grade II
as a device made with class IIIa material.
Uses not permitted
Any use other than that expressly permitted is prohibited.
The relay contacts supplied are of the functional type and subject to fault (since they are electronically controlled
they are prone to short-circuit or remaining open): any protection devices specified in product standards or suggested
by common sense for obvious safety requirements must be installed externally to the instrument.
RESIDUAL RISKS AND RESPONSIBILITIES
Eliwell is not liable for damage due to:
unspecified installation/use and, in particular, in contravention of the safety requirements of established
legislation or specified in this document;
use on equipment which does not provide adequate protection against electrocution, water and dust in the
actual installation conditions;
use on equipment which allows toolfree access to dangerous components;
tampering with and/or alteration of the products;
installation/use on equipment which does not comply with established legislation and standards.
5
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