LEGRAND MicroRex D21 Plus - User Manual

0 6 12 16 24
2 41
N 292555/00
Technical data
4126 31 4126 32 4126 33
047 61 6047 60 047 63
Supply voltage: 230V 50/60Hz 120V 50/60Hz 24V AC/DC
Effective power consumption: Approx. 1 W
Contact rating: 1 changeover contact 16A 250V~µ cos ϕ = 1
Parallel compensation: 600W max. 70µF
Accuracy: ~ 0,1 s / day
single strand multi strand
Terminal capacity:

1,5...4 mm
2
1,5...2,5 mm
2
Programmes : 56
Battery reserve: 5 years
Storage ambient: -20°C to +60°C
Working ambient: -20°C to +55°C
IP: 20
General information
• Start-up: after applying the supply voltage, the time switch
starts automatically with the last selected function. The relay
position is set by the current program.
• Battery backup
- Backlighting not active
- Data key READ/WRITE only via the menu
Set language
A
Day, Time, Date
Switch status
Function
Receptacle for
data key
Overview of programmed
switching times for the week.
Resolution 0.5h
Select menu, back to main menu,
Hold down > 1s = operating display
Confirm selection or load parameters
Select menu options or set parameters
Overview
Time switch
D21 - 1-channel
4 126 31 / 32 / 33 - 047 61 / 63 / 6047 60
®
!
Safety notes
This product should be installed in line with installation rules, preferably by a qualified electrician. Incorrect installation and use can lead to risk
of electric shock or fire. Before carrying out the installation read the instructions and take account of the product’s specific mounting location. Do not open
up, dismantle, alter or modify the device except where specifically required to do so by the instructions. All Legrand products must be opened and repaired
exclusively by personnel trained and approved by Legrand. Any unauthorised opening or repair completely cancels all liabilities and the rights to replacement
and guarantees. Use only Legrand brand accessories.
The device contains a LiMnO
2
primary cell. When the product reaches the end of its life, this cell must be correctly removed and disposed of in accordance with
national legislation and the requirements of environmental protection.
GB
Operating principle: Typ 1.B. S. T.
IEC/EN 60730-1, IEC/EN 60730-2-7
Operation in a normal environment
Montage: in distribution panel, Degree of contamination: 2
Switch output, potential-free
a









dc
b
g
This symbol indicates that the
selection is active.
* Only available in EXPERT mode.
2000 W
1000 W
2000 VA
600 W 70µF
+
c
R
2000 W
+
2000 W
2000 W
+
3680 W

Summary

Safety Notes

General Safety Precautions

Guidelines for safe installation, operation, and repair by qualified personnel, emphasizing authorized parts and avoiding modification.

Battery Disposal

Instructions for correct removal and disposal of the LiMnO2 primary cell according to environmental regulations.

Technical Data

Set Time, Date, Summertime;Wintertime

Programming

Program Creation

Instructions for creating ON/OFF programs using predefined or individual day selections and setting switching times.

Modes

Operating Modes

Description of operating modes: Auto, Constant ON, Constant OFF, and Extra, including manual override behavior.

Reset Function

Device Reset

Procedure for resetting the device, warning that all data will be cleared and requiring re-entry of settings.

Data Key Operations

Data Key Writing

Data Key Reading

Pincode Security

Expert Mode Functions

Expert Mode Features

Holiday Program

Grid Synchronisation

Activating Grid Sync

Cycle Function

Cycle Function Setup

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

This document describes the Legrand D21 1-channel time switch, a device designed for automated control of electrical circuits based on programmed schedules.

Function Description

The D21 time switch operates on a Type 1.B. S. T. principle, adhering to IEC/EN 60730-1 and IEC/EN 60730-2-7 standards. It is designed for operation in a normal environment and is typically mounted in a distribution panel. The device features a potential-free switch output.

At its core, the time switch allows users to program up to 56 switching times, each consisting of an ON time, an OFF time, and associated days of the week. Programs can be set for predefined day groups (e.g., Monday to Sunday, Monday to Friday, Saturday and Sunday) or for individual days using the "INDIVIDUAL" option, offering flexibility in scheduling. All switch commands are executed in chronological order within a week, and programs are executed in the order in which they are entered. The device combines programs of a channel with a logical OR.

The time switch supports automatic operation ("Auto" mode), where it follows the programmed schedules. Additionally, it offers "Constant ON" and "Constant OFF" modes for continuous activation or deactivation of the output, respectively. An "Extra" mode inverts the switch status imposed by the program, acting as a manual override. In this mode, the time switch resumes control with the next effective switch command.

A "Random function" is available to simulate presence by shifting programmed switching cycles randomly within a range of ± 15 minutes. This feature can enhance security by making the lighting patterns less predictable.

The device also includes a "Holiday" program, which, when activated, executes a constant ON/OFF state between a specified start and end date (0:00h on the start date and 24:00h on the end date). This program must be reactivated after each run.

For advanced applications, an "Expert mode" unlocks additional functions, including power grid synchronization to improve accuracy and a "Cycle function." The cycle function allows for cyclical switch commands where the ON time is set by a logical "OR" of programs. A fixed cycle of ON and OFF time operates within these limits, always starting with the ON time. The cycle duration and ON time within the cycle are consistent across all switching times and can be set independently in one-second increments.

Usage Features

The D21 time switch is designed for user-friendly interaction through its menu-driven interface. Upon applying supply voltage, the device starts automatically with the last selected function, and the relay position is set according to the current program. The backlighting is not active.

Initial Setup:

• Language Selection: Users can choose from a variety of languages, including English, German, French, Italian, Spanish, Dutch, Danish, Finnish, Greek, Norwegian, Polish, Portuguese, Russian, Swedish, and Turkish.
• Time/Date Setting: The device allows for setting the current time, date, and managing summertime/wintertime transitions. The switchover can be set to Europe, US, Passive, or a special mode where start and end dates for summertime are freely programmable.

Programming and Control:

• Program Management: The menu provides options to create "NEW" programs, "EDIT" existing ones, "CHECK" program details (inputs and chronological order), and "DELETE" individual or all programs.
• Switch Status Display: The main display shows an overview of programmed switching times for the week, the current switch status (ON/OFF), and the current day, time, and date.
• Menu Navigation: Navigation is intuitive, with "OK" to confirm selections or load parameters, and holding "OK" for more than 1 second to return to the operating display from a menu. The "+" and "-" buttons are used to select menu options or set parameters.

Data Key Functionality:

• The device supports a data key for convenient program management. Users can "WRITE KEY" to load programs from the time switch onto a data key, overwriting any existing data on the key. Conversely, "READ KEY" loads programs from the data key to the time switch, overwriting all existing programs on the device.

Security and Customization:

• Pincode: A PIN code can be activated to restrict access to the time switch menus. If active, button and key functions are disabled for 1 minute after the last button press. PIN-free access can be re-enabled by selecting "PASSIVE" or by resetting the device.
• Contrast Adjustment: The display contrast can be adjusted to suit user preferences.

Testing and Monitoring:

• 1 h-Test: This function activates the output for one hour, after which the time switch automatically returns to the programmed mode.
• Hour Counter: The device includes an hour counter that displays the total relay ON time (up to 65535 hours) and the date of the last reset.

Maintenance Features

Reset Function:

• The device can be reset, which clears all memory, including set data, language, time, date, summertime/wintertime settings, and switching times. This requires re-entering all configurations. The reset procedure involves holding "OK" for more than 3 seconds while simultaneously pressing and releasing "+" and "-".

Battery Replacement:

• The device contains a LiMnO2 primary cell for battery backup, providing a reserve of 5 years. For replacement, the device must be switched off before dismantling the module. It should not be switched on again until the module has been installed. Only a Li cell type battery (LiMnO2) CR2477, 3V, high temperature type min +70°C should be used.

General Safety:

• Installation should be performed by a qualified electrician in accordance with installation rules. Users are advised to read instructions carefully before installation.
• The device should not be opened, dismantled, altered, or modified except as specifically instructed. All Legrand products must be opened and repaired exclusively by Legrand-trained and approved personnel. Unauthorized opening or repair voids all liabilities and guarantees.
• The LiMnO2 cell must be correctly removed and disposed of in accordance with national legislation and environmental protection requirements at the end of the product's life.

LEGRAND MicroRex D21 Plus Specifications