Eliwell EW961 - User Manual

ENGLISH
EN
Electronic controllers for refrigeration units
EW961/971/974
set

Summary

Keys and LEDs

UP Key

Controls menu navigation, value increase, and manual defrost activation.

DOWN Key

Controls menu navigation, value decrease, and configurable functions.

STAND-BY (ESC) Key

Exits menus, confirms values, and activates stand-by mode.

SET (ENTER) Key

Displays alarms, opens menus, and confirms commands.

Status Indicator LEDs

Displays status for SET, Compressor, Defrost, Fan, and Alarm indicators.

Menu Navigation and Operation

Accessing Menus

How to access Machine Status and Programming menus.

Machine Status Menu Usage

Navigating, setting setpoints, and displaying probe data.

Setpoint Edit Lock

Locking the keypad to prevent setpoint changes.

Programming and Passwords

Programming Menu Access

Navigating and viewing parameters in the programming menu.

Password Management

Managing access levels via passwords PA1 (User) and PA2 (Installer).

Alarms and Faults

Probe Fault Alarms

Indicates faults with probe 1 (E1) and probe 2 (E2).

Temperature Alarms

Triggers for high (AH1) and low (AL1) temperature conditions.

Other Alarm Types

External (EA), Door Open (OPd), and Defrost Time-out (Ad2) alarms.

Defrost, Diagnostics, and Copy Card

Manual Defrost and Diagnostics

Activating defrost manually and interpreting diagnostic indicators.

Copy Card Operations

Uploading, formatting, and downloading parameters using the Copy Card.

Temperature Alarm Settings

Relative Temperature Alarms

Defines alarm thresholds relative to the setpoint.

Absolute Temperature Alarms

Defines alarm thresholds based on absolute temperature values.

Safety and Wiring

Electrical Wiring Safety

Safety precautions and guidelines for electrical connections.

Responsibility and Disclaimer

Manufacturer's liability limitations and manual copyright.

Conditions of Use and Technical Data

Permitted and Unpermitted Use

Guidelines for permitted and unpermitted operation.

Technical Data

Specifications like use, mounting, control type, and power supply.

Device Characteristics

Input Characteristics

Details on display range, accuracy, resolution, and inputs.

Output Characteristics

Details on device outputs, relays, and capacities.

Compressor Parameters

Compressor Control Parameters

Parameters for differential, timing, and delays.

Setpoint Range Parameters

Parameters for high (HSE), low (LSE), and offset (OSP) setpoints.

Digital Input Parameters

Parameters for door open (dOd) and activation delay (dAd).

Defrost Parameters

Defrost Type and Interval

Parameters for defrost type (dty) and interval (dit).

Defrost Timing and Control

Parameters for defrost offset (dOH), endurance (dEt), stop temp (dSt), and power-on (dPO).

Fan Parameters

Fan Operation Control

Parameters for fan type (FPt), stop temp (FSt), differential (FAd), and delay (Fdt).

Fan Drainage and Disable

Parameters for drainage time (dt), fan disable (dFd), and fan compressor off (FCO).

Alarm, Communication, and Display Parameters

Alarm Configuration Parameters

Parameters for fan open door (Fod), alarm type (Att), and alarm differentials (AFd, HAL, LAL).

Time-based Alarms and Overrides

Parameters for PAO, dAO, OAO, tdo, tAO, dAt, EAL.

Communication and Display Settings

Parameters for device address (dEA), family (FAA), and keypad lock (LOC).

System, Calibration, and Configuration Parameters

Password and Display Settings

Parameters for password (PS1, PS2), number display (ndt), and read-out (dro, ddd).

Calibration and Defrost Display

Parameters for probe calibration (CA1, CA2) and defrost display lock (ddL).

Configuration Options

Parameters for standby mode (H08), digital inputs (H11), buzzer (H25), and DOWN button (H32).

Default Parameter Values

Compressor, Defrost, Fan Defaults

Default values for compressor, defrost, and fan parameters.

Alarm, Communication, System Defaults

Default values for alarms, communication, and system settings.

Configuration and Copy Card Defaults

Default values for configuration, calibration, and copy card.

Model Connection Diagrams

EW961 Connections

Terminal layout and connections for the EW961 model.

EW971 Connections

Terminal layout and connections for the EW971 model.

EW974 Connections

Terminal layout and connections for the EW974 model.

Eliwell EW961 Specifications

General

Brand	Eliwell
Model	EW961
Category	Controller
Language	English