845 21 - Electrical switch LEGRAND - Free user manual and instructions

USER MANUAL 845 21 LEGRAND

Protection by electronic device:

• If there is an overload and it is above the max. operating temperature, the product automatically regulates the power by lowering the lighting.
• If there is a short-circuit or a very high overload, the dimmer switches itself off. Once the fault has been eliminated, the product is once again operational.

Connection

Description

Operation

The dimmer switch:

• Using its ON and OFF keys it can simultaneously control a set of products (actors) that have been associated with it during the learn phase(1). It is then the Leader of the scenario(2).
• Can be controlled by other Leader products. It is then an Actor.

As Leader:

The dimmer switch can control:

• The lighting points that are directly connected to the open phase terminal, using the ON, OFF, + and - keys.
• The lighting points associated with it (the actors) using the ON and OFF keys.

As Actor:

The remote control dimmer can participate in 16 different scenarios, executing the commands from the other Leaders.

Locally:

The dimmer switch can control:

• The lighting points that are directly connected to the open phase terminal, using the ON, OFF, + and - keys.

When the remote control dimmer is used in local control, it is possible to record a default light level.

Setting the light level of the ON button (excluding learning procedure):

• Set the level using the + and - buttons
• Press the + and ON buttons at the same time, for 5 seconds
• The load will extinguish and light up again at the ON level

The ON level is now saved.

To record a light level during the learn phase, step 2 of the "learn scenario" becomes:

Press LEARN

Press the ON command key which must be associated with the leader

Press the + or - command key to set the required lighting level

(1) Learn phase: Operation to associate products so that they can be controlled simultaneously from a central point.
This association is carried out by applying the learn scenario procedure on page 11.
(2) Scenario: Corresponds to the set of products (actors) that are associated with a command key.

Learn scenario

Step 1: Start the learn phase (on the LEADER)

Press LEARN

Press the command key that is to control the scenario

Step 2: Add an actor to the scenario (on the ACTOR)

Press LEARN

Press the command key that is to be associated with the leader

To add a number of products to the scenario, repeat operations 3 and 4 for each actor.

Step 3: Record the scenario (on the LEADER)

Press LEARN

The indicator lamps of all the products go off.
The scenario is recorded.

Modification of a scenario

Step 1: Open the scenario (on the LEADER)

Press LEARN

Press the command key that controls the scenario

The indicator lamps of all the products in the scenario blink.

Step 2: Modify the state of an actor in the scenario (on the ACTOR)

Press LEARN

EARN

Press the command key that is to be associated

Step 3: Record the scenario (on the LEADER)

The indicator lamps of all the products go off. The scenario is recorded.

Clearing a scenario

Clear all the scenarios linked with the command key (on the LEADER)

Press LEARN

The scenario is cleared

Press the commandkey and hold itdown for 10 s

Clear all the scenarios linked to this product (on the LEADER)

Press LEARN

Return the product to factory configuration

Press LEARN and hold down for 10 s

Key

The indicator lamp goes off

The indicator lamp blinks slowly

The indicator lamp blinks quickly

The indicator lamp flashes