LEGRAND 4 226 81 Bedienungsanleitung

LINE 1 LINE 2

LOAD

IR COM

4 226 82

OFF

AUT

MAN

AUT

RESET

Q1 Q2

IEC 60947-6-1

Automatic transfer switch

4 226 81

Installation and user manual

Part. LE12710AA-01/21-01 GF

ITALIAN 3

ENGLISH 3

LINE 1 LINE 2

LOAD

IR COM

4 226 82

OFF

AUT

MAN

AUT

RESET

Q1 Q2

IEC 60947-6-1

EN ENGLISH 3

Automatic transfer switch

4 226 81

Installation and user manual

Automatic transfer switch

4 226 81

WARNING

• Read carefully the manual before the installation or use, taking count of the informations of instruction sheet given

with to the product.

• These equipments have to be installed by qualified personnel, in compliance to local standards, to avoid damages or

safety hazards.

• Before any device maintenance operation, remove the supply from measuring inputs or isolate them cutting the supply

from other sources.

• Legrand assumes no responsibility if the device isn’t properly used, if installative informations aren’t respected or if the

device is tampered.

• Products described here below are subject to alterations and changes without prior notice. For this reason the catalo-

gues data couldn’t have contractual value.

• Clean the instrument with a soft dry cloth; do not use abrasives, liquids.

• Due of presence of electrical connections, the safety standards have to be respected.

• The ATS is supplied with Legrand standard parameters.These couldn’t respect the necessity of the specific application/

installation. For this reason it is necessary to know the parameters and eventually to modify them in order to better

integrate the device to the plant.

SAFETY INSTRUCTIONS

This product should be installed in compliance 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.

All Legrand products must be opened and repaired exclusively by personnel trained and approved by Legrand. Any unauthori-

zed opening or repair completely cancels all liabilities and the rights to replacement and guarantees.

Use only Legrand brand accessories.

Index

1. General features 6

1.1 Description 6

1.2 Applications 6

1.3 Installation 6

2. ATS front panel description 7

2.1 Selection keys 7

2.2 LEDs 7

2.3 IR Input 7

3. Operating mode 8

3.1 Reset mode (OFF-RESET) 8

3.2 Manual mode (MAN) 8

3.3 Automatic mode (AUT) 9

4. Power-up 9

5. Main menu 10

6. Password access 11

7. Display pages 12

8. Communication 14

8.1 User Alarms (UAx) 15

8.2 Counters (CNTx) 15

9. Keypad lock 16

10. Programmation 16

10.1 Parameter setting (setup) from frontal panel 16

10.2 Parameter setting (setup) with PC 17

10.3 Parameter setting with smartphone or tablet 18

10.4 IR port 18

11. Menu 19

Automatic transfer switch

4 226 81

Installation and user manual

12. Parameters 20

12.1 Description of “utility” menu 20

12.2 Description of “general” menu 21

12.3 Description of “password” menu 21

12.4 Description of “Load changeover” menu 22

12.5 Description of “Voltage control line 1 S.Q1”menu 24

12.6 Description of “Voltage control line 2 S.Q2”menu 26

12.7 Description of “Programmable inputs”menu 27

12.8 Description of “Programmable outputs”menu 27

12.9 Description of “Alarms”menu 28

12.10 Alarm properties 28

12.11 Alarm table 29

12.12 Alarm description 30

13. Function I/O 31

13.1 Programmable inputs function table 31

13.2 Output function table 32

14. Installation 34

15. Terminals position 35

16. Dimensions 35

17. Technical characteristics 36

1. General features

The automatic transfer switch has been designed for switching applications between two power sources (power grids or

generators). ATS has an LCD screen to provide a clear and intuitive user interface.

1.1 Description

• 128x80 pixel, backlit LCD screen with 4 grey levels.

• 5 keys for functions and setting.

• 4 LEDs for plant synoptic (source line and breakers status).

• 2 LEDs for alarm presence and AUTO mode active.

• 5-language text for measurements, settings and messages.

• Programmable I/O functions.

• Fully user-definable alarm properties.

• Line 1: 3-phase + neutral voltage reading input (S.Q1).

• Line 2: 3-phase + neutral voltage reading input (S.Q2).

• 100-240VAC power supply.

• Voltage thresholds with programmable hysteresis.

• Front optical programming interface, galvanically isolated, which can be connected with USB and WiFi dongles.

• 6 programmable digital inputs (negative).

• 6 + 1 outputs:

- 6 relays with NO contact 8A 250VAC.

- 1 relay with changeover contact 8A 250VAC.

• IP 40 front protection.

• Compatible with App and SW ACU.

1.2 Applications

• To check and to manage lines (line-to-line (U-U), line-generator (U-G) or generator-generator (G-G)).

• Control of motorized circuit breakers or contactors.

• Control of voltage source for three-phase, two-phase or single-phase systems.

• Control of phase-phase and / or phase-neutral voltages.

• Controls of undervoltage, overvoltage, phase loss, asymmetry, minimum frequency, maximum frequency.

1.3 Installation

• Install the unit following the instruction sheet attached to the product. Evaluate if the default configuration is in com-

pliance with the desired one. Otherwise it is necessary modify the configuration. Check the wiring diagram supplied by

Legrand in order to correctly connect the unit and others Legrand devices.

• The ATS standard configuration guarantees the correct work of devices if wiring diagrams supplied are respected.

WARNING

The change of parameters, of input functions, of output functions etc... causes a functional change. This could cause

incompatibility with standard wiring diagrams. It is recommended to evaluate changes of parameters or functional

modes after having read the ATS user manual.

• At first power on, the OFF/RESET mode is activated on the ATS.

Automatic transfer switch

4 226 81

Installation and user manual

2.1 Selection keys

•OFF button (F) – It selects the OFF operating mode.

•AUT button (G) – It selects the automatic mode. Green AUT LED (D) lights (when selected).

•MAN button (H) – It selects the manual operating mode.

••▲and ▼keys (I) - Used to scroll through the display pages or to select the list of options in a menu. Simultaneously

pressing of ▼and ▲recalls up the main menu.

2.2 LEDs

•AUT LED (green) (D) – It indicates the automatic mode active.

•Alarm LED (red) (E) – Flashing, it indicates an active alarm.

•Line 1 voltage status LED (green) (C) – It indicates the line voltage of source 1 S.Q1 is within the programmed limits.

•Line 2 voltage status LED (green) (C) - It indicates the line voltage of source 2 S.Q2 is within the programmed limits.

•Q1 status LED (yellow) (B) - If fixed, it indicates the open or closed state of the devices Q1 source line 1. If flashing, it

indicates a mismatch between the desired state of the breaker and its true state detected by the feedback input.

•Q2 status LED (yellow) (B) - If fixed, it indicates the open or closed state of the device Q2 source line 2 breaker. If flashing,

it indicates a mismatch between the desired state of the breaker and its true state detected by the feedback input.

N.B. If the LED is on, the relative function is activated.

LINE 1 LINE 2

LOAD

IR COM

4 226 82

OFF

AUT

MAN

AUT

RESET

Q1 Q2

IEC 60947-6-1

FGH

Fig. 1 - Frontal panel

2.3 IR Input

•IR Input (L) – Connecting IR port to connect IR-USB or IR-WiFi dongle accessories. They allow the dialogue between ATS

and SW ACU or APP ACU.

2. ATS front panel description

Fig. 2 - OFF/RESET Fig. 3 - MAN Fig. 4 - AUT

With of OFF-RESET/MAN/AUT keys the desiderated operating modes can be selected and they will appear on the display.

The change of operating mode can be done by pressing the specific button for at least 0.5s. After this time, the new cho-

sen modality will appear another display.

3.1 Reset mode (OFF-RESET)

• In this mode the ATS looks over the lines status but it does not perform any changing actions.

• Lines surveillance, measures display and status LEDs remain active. If the control of the switching devices is impulsive,

in OFF mode both open and close commands are disabled. If the command is in continuous mode, the behaviour can

be selected by P05.10.

• Pressing the OFF-RESET button it’s possible to reset the retentive alarms, after removing alarm conditions.

To access the programming menu is necessary to activate the OFF mode.

3.2 Manual mode (MAN)

• In MAN mode it is possible to manually control the devices. This operation could be done on devices Q1 and Q2 in fun-

ctions of chosen line (line 1 or line 2). It is possible to select the switch to control by pressing the MAN key. On display

the device enabled (Q1 or Q2) appears. By pressing the ▲or ▼•button it is possible to confirm the closing or opening

operation (the command will be received if the button is pushed for at least 300ms).

• While devices opening-closing is enabled, the page scroll is locked. Pressing MAN several times it is possible to unlock

it and to move through other display pages.

• If it is commanded the closing of an opened device while the other one is still closed, the ATS first of all opens the closed

device and then it closes the commanded one, interposing the programmed interlock time.

Voltage Line 1 Voltage Line 2

Function selectable

with MAN

Q1 selected

Page scroll locked

Fig. 7 - Manual mode (MAN) Fig. 8 - Manual GEN mode

With an application Utility-Generator (U-G) or Generator-Generator (G-G), it is possible to manually control the switching

on and off of the generator in a manner similar to that above described, but moving on the page start / stop groups.

3. Operating mode

Fig. 5 - Q1 Selection Fig. 6 - Q1 Closing

Automatic transfer switch

4 226 81

Installation and user manual

Voltage line 1 Voltage Line 2

Line 2

selected

Selectable function

with MAN

Page scroll locked

Fig. 9 - Generator manual mode Fig. 10 - Start Generator manual mode

3.3 Automatic mode (AUT)

• In automatic mode, the ATS checks permanently the lines and breakers status. Starting from the state of lines it performs

autonomously the closing/opening operations of breakers and the optional startup/shutdown of the generator set.

• When the main line (S.Q1) exceeds the specified limits for a time higher the one set, the green LED C (line presence)

switches off giving a “threshold out” alarm. The ATS disconnects the load from S.Q1 and connects it to the S.Q2 (if it is

available and within admitted limits). After S.Q1 returns within the specified thresholds, the ATS moves the load on this

one after it has checked the stability and the quality of line. One time the changeover is finished, the ATS can provide

to the eventual cooling cycle of generator set (if it is programmed).

• Automatic operating cycles vary both as a function of the type of application (Utility-Utility, Utility-Generator, Genera-

tor-Generator) and as a function of the type of devices used (motorized circuit breakers or contactors).

• It is possible to program the unit to open the priority line S.Q1 before or after the secondary line S.Q2 has been made

available, through parameter P05.05 in the M05“changeover” menu.

• When the priority line S.Q1 turns within the established limits, the unit opens S.Q2 and switches the load on S.Q1. If on

S.Q2 is present a generator, the ATS provided to the eventual cooling cycle of it. It is possible also to lock the automatic

return to the priority line S.Q1 setting parameter P05.12. In this case it is necessary an external intervention to authorize

the turn of load to line S.Q1.

4. Power-up

• The ATS can be supplied at 100-240VAC.

• After first power-up the device normally starts in OFF/RESET mode.

• During the normal work of ATS, if it switches off, when it will be switched on it comes to operating mode actives before

the switching off.

• If it is necessary to modify this behaviour, the parameter P01.03 in the M01“utilities”menu has to be changed.

• During power-up all the LEDs blink in order to verify their operation.

5. Main menu

• The“main menu”is made up of a group of graphic icons that allow to access to functions. In function of selected icon, a

description will be displayed on the display.

Fig. 11 - Main menu

The main menu allow the rapid access to measurements and settings.

••Starting from main page, press ▲•and•▼•keys together. The menu screen is displayed.

•• Press ◄ or ►to rotate clockwise/counter clockwise to select the required function. The selected icon is highlighted

and the central part of the display shows the description of the function.

•• Press (AUT) OK to activate the selected function.

••If some functions are not available, the correspondent icon will be disabled (shown with light grey colour).

•• Icons descriptions:

Commands menu

Enter password L-L voltages L-N voltages

Alarm status

Nominal data

Statistics

Parameters Setup

Information page

Fig. 12 - Main menu

Input/output status

•• – Settings and access to the password inserction.

••– View of L-L voltages.

•• – View of L-N voltages.

•• – View of alarm status.

•• – Nominal data.

•• – Statistic data of the ATS operation.

•• – Input/output status.

•• – Information page.

•• – Setup menu for parameter programming (see dedicated chapter).

••–“Commands menu”(see dedicated chapter).

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