LEF LIGHTING NEXTA MCU-M500 User manual

The product is an electronic control unit with UP, DOWN and STOP
functions for managing 230 V, max. 500 W motors via wire and/or radio
MCU-M500
INDEX
1 - PRODUCT FEATURES
1.1 - TECHNICAL DATA
1.2 - DESCRIPTION
2 - ELECTRICAL CONNECTIONS
2.1 - CONNECTION DIAGRAM
3 - USE OF THE CONTROL UNIT
3.1 - USE VIA RADIO
3.2 - USE VIA WIRE
4 - CONTROL UNIT SETTINGS
4.1 - CONFIGURATION OF BUTTONS VIA WIRE
4.2 - CONFIGURATION OF MANOEUVRE TIMES
5 - RADIO PROGRAMMING
5.1 - RADIO PROGRAMMING MULTIFUNCTIONAL TRANSMITTERS
5.2 - RADIO PROGRAMMING OF GENERIC TRANSMITTERS
6 - DELETION OF TRANSMITTERS

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INDEX
1 - PRODUCT FEATURES
1.1 - TECHNICAL DATA
1.2 - DESCRIPTION
2 - ELECTRICAL CONNECTIONS
2.1 - CONNECTION DIAGRAM
3 - USE OF THE CONTROL UNIT
3.1 - USE VIA RADIO
3.2 - USE VIA WIRE
4 - CONTROL UNIT SETTINGS
4.1 - CONFIGURATION OF BUTTONS VIA WIRE
4.2 - CONFIGURATION OF MANOEUVRE TIMES
5 - RADIO PROGRAMMING
6 - DELETION OF TRANSMITTERS

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1 PRODUCT FEATURES
43mm
21mm 52mm
Led
Dip switches
Button
58mm
1.1 TECHNICAL DATA
From the grid 120-240 Vac
1 motor powered from the grid:
230V max 500W,
110V max 250W
100
433.920MHz ISM
IP20
-20 +55 °C
52x43x21 mm
Power supply
Outputs
Num. of programmable transmitters
Radio frequency
Protection rating
Operating temperature
Dimensions
Pic.1.1a
- Installation must be carried out only by qualified technicians in compliance with the electrical and safety
standards in force.
- All connections must be made with the power turned off.
- Use suitable cables.
- Do not cut through the aerial (see picture 1.1b)
- A suitably sized disconnection device must be set up on the electric power line that supplies the product.
- Disposal of waste materials must fully respect local standards.
WARNINGS
Pic.1.1b Pic.1.1c

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1.2 DESCRIPTION
The product is a control unit to control electrical motors powered from the grid with power of max. 500 W
(230 V) or max. 250 W (110 V).
Ideal for activating motorised awnings, shutters and blinds with settable Up-Down-Stop, step and manual
modes.
The ISM (industrial, scientific and medical) radio frequency band guarantees a long range, even through walls
and ceilings.
Simple programming with dip-switches, reduced dimensions with breakable tabs (pic. 1.1c) for fixing with
screws (pic. 1.2a) or for insertion into connection boxes up to 55 mm in diameter (pic. 1.2b, 1.2c and 1.2d).
Pic.1.2a
Pic.1.2b Pic.1.2c Pic.1.2d
Pic.1.2e
L
NM

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WARNING: It is possible to connect multiple buttons to the same input with parallel connection.
open
close
c
2 ELECTRICAL CONNECTIONS
N
L
P1 P2
M
1 2 3 4 5 6 7
Pic.2.1
WARNING:
- The control unit is set up to control motors with internal end limit regulation.
- Buttons must be used for control via wire
- Multiple buttons or loads can be connected by using parallel cabling.
- If the condenser is not connected internally to the motor (typical of tubular motors), it is connected between
the phases (terminals 4 and 6). Refer to the motor manual
- It is important to respect the opening and closing phase of the motor to make the commands of the
transmitter and the wired inputs in mode 2 synchronise (see paragraph 4.1).
If the opening phase is not shown in the motor, carry out a test to check which wire it corresponds to.

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3 USE OF THE CONTROL UNIT
To control the motor via radio you must have compatible transmitters and therefore must carry out the
association procedure; see paragraph 5.
The transmitter's command modes depend on the model used. If the transmitter is of a generic type,
its operation depends on the way it is programmed (see paragraph 5, table 5.3a).
If the transmitter is multifunctional, refer to the transmitter manual, to the paragraph entitled "commands sent
by the transmitter", bearing in mind that it is an "up-down-stop" device.
3.1 USE VIA RADIO
The device is set up to be able to accept commands via wire from buttons in terminals 3 and 4. Should you
wish to control the load only via radio, it is not necessary to connect these devices for the control unit to work
properly.
Default operation (Key P1 = Key P2):
DIP4 ON, step: with each press the motor will carry out an opening movement, a stop, a closing movement, a
stop, in sequence.
DIP4 OFF, manual operation: the motor will carry out its manoeuvres only with the key pressed down.
The motor will carry out an opening manoeuvre in sequence (when the key is released it will carry out a stop)
and a closing manoeuvre (when the key is released it will carry out a stop).
3.2 USE VIA WIRE

Default: mode 1
This procedure lets you select the function of inputs "P1" (terminal 3) and "P2" (terminal 4). WARNING: the
connected devices must be buttons.
PROCEDURE:
CONTROL MODES:
4.1 CONFIGURATION OF BUTTONS VIA WIRE
STEP 1
Position DIPs 1, 2 and 3
to OFF-ON-OFF
DIP 1, 2, 3=
OFF ON OFF
STEP 2
Press the button on the
receiver for a short time.
The LED comes on
and stays on
STEP 3
Press the button on the receiver for a short time
count the number of flashes emitted by the LED:
6 flashes = MODE 2 (P1= Open/stop P2= Close/stop)
3 flashes = MODE 1 (P1=P2= pen/stop/close/stop)
SHORT
PRESSURE
SHORT
PRESSURE
DIP 4 =
ON
DIP 4 =
OFF
PULSE OPERATION
An action of the motor
corresponds to each short
pressure
of the key
MANUAL OPERATION
The movements of the motor
occur only with the key
pressed down, when it is
released the control unit
carries out a stop
STEP 4
To change the setting, repeat the procedure from
point 1; the control unit will alternate between
3 and 6 flashes.
NUMBER OF TYPE OF
FLASH INPUT
3 bi-button
6 mono-button
4 CONTROL UNIT SETTINGS
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Default: 60 seconds
This procedure is used to set the opening and closing manoeuvre time (maximum time that can be set 3
minutes).
PROCEDURE:
4.2 CONFIGURATION OF MANOEUVRE TIMES
STEP 1
Position DIPs 1, 2 and 3
to OFF-OFF-OFF
DIP 1, 2, 3=
OFF OFF OFF
STEP 2
Press the button on the
receiver for a short time.
The LED comes on
and stays on
STEP 3
Press the button on the
receiver for a short time.
The LED flashes
(max 180 flashes):
each flash represents a
second of manoeuvring
SHORT
PRESSURE
SHORT
PRESSURE
SHORT PRESSURE
DURING THE FLASH
STEP 4
To end the count press
the button for a
short time during the
flash that corresponds
to the function desired
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5 - RADIO PROGRAMMING
This procedure lets you programme compatible multifunctional or generic transmitters.
WHICH REMOTE CONTROL DO YOU WANT TO ASSOCIATE WITH THE CONTROL UNIT?
MULTIFUNCTIONAL TRANSMITTERS
CODES:
HB70-SLCT, HB70-SPCT,
HB80-1C, HB80-1DIM, HB80-2L, HB80-30D, HB80-30RGBW, HB80-4C, HB80-4DIM, HB80-4L,
HB90-6LT,
ROUND-1SP,
SENSA-M, SENSA-P, SENSA-R35M, SENSA-R35P, SENSA-R35T, SENSA-T,
TOUCH-1, TOUCH-1CCT, TOUCH-1DIM, TOUCH-1SP, TOUCH-1L , TOUCH-1RGBW, TOUCH-3C, TOUCH-4DIM, TOUCH-CFU
With multifunctional transmitters the transmitter control modes depend on the model used.
Refer to the transmitter manual, to the paragraph entitled "commands sent by the transmitter",
bearing in mind that it is a "up/down/stop" device.
GENERIC TRANSMITTERS (WIRELESS BUS)
CODES:
HB80-6G,
MCU-TX4,
TOUCH-1G, TOUCH-2G, TOUCH-4G, TOUCH-LOCK4, TOUCH-TX2,
ROUND-1G
With generic transmitters, the transmitter's control modes depend on the function associated with the key
during the association procedure.
The available function for the key are:
TABLE 5.1 - KEY FUNCTIONS OF THE GENERIC TRANSMITTER
UP / STOP / DOWN / STOP
DIP :
ON ON OFF
UPDIP :
OFF ON ON
DOWNDIP :
ON OFF ON
POSITION OF DIP
IN "STEP 1b" OF
THE PROCEDURE
KEY
FUNCTION
STOPDIP :
OFF OFF ON