Eliwell EWKPlus 978 User Manual

Reduced SET / Economy LED
Permanently on: Energy Saving active
Flashing: reduced setpoint active
Quick flashing: access to level2 parameters
Off: in all other cases
Fans LED
Permanently on: fans active
Off: in all other cases
Compressor LED
Permanently on: compressor active
Flashing: delay, protection or activation
blocked
Off: in all other cases
Defrost LED
Permanently on: output active
Flashing: activated manually or from DI
Off: in all other cases
Alarms LED
Permanently on: alarm active
Flashing: alarm acknowledged
Off: in all other cases
Aux LED
Permanently on: Aux output active
Flashing: Deep cooling Cycle active
Off: Aux output not active
°C LED
Permanently on: °C setting (dro = 0)
Off: in all other cases
°F LED
Permanently on: °F setting (dro =1)
Off: in all other cases
EWPlus 978 - EWKPlus 978
Electronic controllers and keyboards for
refrigeration units
NOTE
When the instrument is powered on it performs a
lamp test, during which time the display and LEDs will
flash for several seconds to check that they all function
correctly.
USER INTERFACE
set
UP
Press and release
Scroll through menu options
Increase values
Hold down for at least 5 sec
User-configurable function
(see parameter H31)
DOWN
Press and release
Scroll through menu options
Decrease values
Hold down for at least 5 sec
User-configurable function
(see parameter H32)
STANDBY (ESC)
Press and release
Return to the previous menu level
Confirm parameter value
Hold down for at least 5 sec
User-configurable function
(see parameter H32)
SET (ENTER)
Press and release
Display alarms (if present)
Open Machine Status menu
Hold down for at least 5 sec
Open Programming menu
Confirm commands
KEYS
EWPlus 978 - EWKPlus 978
N
L
89
10
10 23 6745
11
TTL
EW
PLUS
978
Supply
230Va 4.5W
Max 12A
D.I.2
D.I.1
Pb1 Pb2
Pb3
A C D B
AUX
H21 H23 H24 H22
EWPlus 978 TERMINALS - AP2
N-L
Supply voltage 230Va
6-7
Power input 230Va (Supply)
3-0 N.O. Relay Compressor
(A - ) - Parameter H21
8-10 Probe Pb2
3-1 N.O. Relay Defrost2
(C - ) - Parameter H23
9-10 Probe Pb1
3-2 N.O. Relay AUX
(D -
AUX
) - Parameter H24
11-10 D.I.1 (H11≠0 and H43=n) or Probe Pb3 (H11=0 and H43=y)
3-4 N.O. Relay Defrost
(B - ) - Parameter H22
TTL TTL Input or Digital Input 2 (H12≠0)
3-5 N.C. Relay Defrost
NOTE: for relay and power supply capacities, contact the Sales Office.
EWPlus 978 CONNECTIONS

Eliwell EWKPlus 978 Specifications

General

Brand	Eliwell
Model	EWKPlus 978
Category	Controller
Language	English

Summary

User Interface and Controls

LED Indicators and Keypad Functions

Explains the function of various LEDs and the operation of UP, DOWN, STANDBY, and SET keys.

Terminal Connections Overview

Details the terminal assignments and functions for EWPlus 978 controllers.

Application Loading and Reset Procedures

Loading Default Applications

Procedure for selecting and loading pre-defined application settings onto the device.

Instrument Resetting Guide

Steps to restore factory default settings and configurations for the instrument.

Menu Navigation and Parameter Management

Accessing Status and Programming Menus

Guide to accessing the 'Machine Status' and 'Programming' menus and their structure.

Password and Setpoint Configuration

Details on setting passwords (PA1, PA2) and configuring setpoints and keypad lock.

Controller Operations and System Features

Unicard/Copycard Functionality

Instructions for uploading, formatting, and downloading parameters using the Copycard.

Physical Installation and Deep Cooling

Guidelines for physical mounting and an explanation of the Deep Cooling Cycle feature.

Instrument Control and Diagnostics

How to switch the instrument on/off, manual defrost, and understand alarm indicators.

Alarm and Fault Diagnosis

Fault Code Reference

Detailed table listing alarm labels, causes, effects, and remedies for various faults.

Temperature Alarm Conditions

Explanation of max/min temperature alarm thresholds and activation criteria.

Technical Specifications and Electrical

Device Technical Data

Details on classification, power supply, inputs, outputs, and mechanical characteristics.

Wiring and Connection Guidelines

Important safety instructions and notes for wiring the instrument correctly.

Product Family Capabilities

EWPlus 978 Controller Capabilities

Details on relay outputs and digital inputs for the EWPlus 978 model's functionality.

EWKPlus 978 Keyboard Features

Describes the digital input functions available for the EWKPlus 978 keyboard model.

User Menu Parameter Reference

Detailed User Parameters

Comprehensive table of user-accessible parameters, their ranges, units, and default values.

Installer Menu Parameter Reference (Part 1)

Compressor and Defrost Installer Settings

Installer parameters related to compressor control and defrost cycle configuration.

Installer Menu Parameter Reference (Part 2)

Fan, Alarm, and Input/Output Installer Settings

Installer parameters for fan operation, alarm management, and digital input/output configuration.

Installer Menu Parameter Reference (Part 3)

Display, Configuration, and CopyCard Settings

Installer parameters for display modes, digital input/output configuration, and CopyCard functions.

Safety, Usage, and Disposal Information

Disclaimer and Permitted Use

Legal disclaimer, responsibilities, permitted use, and improper use guidelines.