DALCNET MICRO-1CV Single Channel LED Dimmer

FEATURES

• LED DIMMER
• Power Supply: 12-24-48 Vdc
• Voltage Output for strip LED and LED module
• WHITE and MONOCHROMATIC Light Control
• MULTI INPUT – Analogic Automatic Detection of the Local command:
  • Normally Open (N.O.) push-button
  • Analog input 0-10 V
  • Analog input 1-10 V
  • Potentiometer 10 kΩ
• Device configuration via PUSH MENU, parameters that can be set:
  • Minimum value of dimming
  • Fade IN/OUT time
  • PWM Frequency
• Constant voltage output for Resistive LED load 1
• Memory function
• Sync function – Master/Slave
• Soft ON/OFF
• Optimized output dimming curve
• Extended temperature range
• 100% Functional Test – 5 Years warranty

PRODUCT DESCRIPTION
MICRO-1CV is a 1-channel Pulse Width Modulation (PWM) Constant Voltage (CV) LED dimmer. It can be powered from a constant voltage (12 ÷ 48) Vdc SELV power supply and is suitable for driving a load such as Strip LED and White/Monochrome LED modules at constant voltage. The dimmer can be controlled via Normally Open (N.O.) push-button, analog input 0/1-10V, or via a 10 kΩ potentiometer; the automatic detection of the local control that ensures the proper functionality related to the type of the connected control. MICRO-1CV can deliver a maximum output power up to 78 W (@12V) or 150 W (@24/48V) and has the following protections: over-voltage and under-voltage protections, reverse polarity protection, input fuse protection and open-circuit protection. Through the Push Menu are possible to configure multiple parameters including dimming frequency, Fade In/Out time values and minimum brightness level.
For the up-to-date manual, please consult our website www.dalcnet.com or scan the QR Code from your smartphone.

PRODUCT CODE

DETECTION AND PROTECTION
The following table shows the types of incoming and outgoing protection/detection present on the device.

REFERENCE STANDARDS
MICRO-1CV complies with the regulations shown in the table below.

TECHNICAL SPECIFICATIONS

INSTALLATION

ATTENTION! Installation and maintenance must always be carried out in the absence of voltage. Before proceeding with the connection of the device to the power supply, make sure that the voltage of the power source is disconnected from the system. The device should only be connected and installed by qualified personnel. All applicable regulations, legislation, standards, and building codes must be adhered to. Incorrect installation of the device may cause irreparable damage to the device and connected loads.

The following paragraphs show the diagrams of the dimmer’s connection to the load, the local/sync control, and the supply voltage. It is recommended to follow these steps to install the product safely:

1. Load wiring: connect the LED load positive wire to the LED red terminal with the “+” symbol, and the LED load negative wire to the LED black terminal with the “-” symbol.
2. Local Control wiring: connect the Local Control to the INPUT terminals with the symbols “COM” and “IN”.
3. Sync wiring: connect the Sync wires to the SYNC terminals depending to the remote functionality you want to create: for Master control, wire the SYNC-TX signal from the MICRO-1CV (Master) to the SYNC-RX signal of other MICRO-1CV Slaves.
4. Power Supply wiring: Connect a 12 Vdc, 24 Vdc, or 48 Vdc constant voltage SELV power supply (depending on the
   nameplate data of the LED load) to the “+” (red) and “-” (black) slots of the DC IN terminal.

LOAD WIRING

DIAGRAM FOR WHITE OR SINGLE-COLOR LED LOADS
MICRO-1CV has 1 output channels that can drive single-color LED strips or white light temperature. The following connection diagram (Figure 2) allows you to drive white or single-color LED load.

LOCAL CONTROL WIRING
MICRO-1CV can be controlled via Local Control with three different modes, automatically detected at startup: Normally Open (N.O.) push-button, 0-10V or 1-10V analog signals, and 10 kΩ potentiometer. At the first power ON, the device is set by default to N.O push-button control.

DIAGRAM FOR N.O. PUSH-BUTTON
MICRO-1CV can be controlled via Local Control with Normally Open (N.O.) push-button or voltage-free dry contact. The N.O. push push-button will be identified after 5 quick presses. In push-button mode, function memory is always active.For longer distances (>10 m), it is recommended to use an N.O. dry contact relay module, connected between the “Input” terminal of the MICRO-1CV and the power source (e.g. mains voltage 230 Vac). Figure 4 shows an example of a Local Command wiring diagram recommended for long distances. Note that this diagram works only for push-button input.

DIAGRAM FOR 0-10V AND 1-10V ANALOG SIGNALS
MICRO-1CV can also be controlled via 0-10 V and 1-10 V voltage signals. The automatic detection of 0/1-10V analog signal starts when a value between 3V and 7V is sent to INPUT terminal. The following wiring diagram (Figure 5) allows you to connect analog signals to the INPUT terminal.

DIAGRAM FOR POTENTIOMETER
MICRO-1CV can be controlled through a 10 kΩ potentiometer, wired to the INPUT terminal as shown in Figure 6. The automatic detection of potentiometer starts with a value between 30% and 70%.

SYNC WIRING
It is possible to connect multiple devices of MICRO-1CV family among them in Master/Slave mode: connect the local control (pushbutton, 0/1-10V signal or potentiometer) to the INPUT terminal of device that will be used as Master, then wire the “TX” signal from SYNC-TX terminal of Master to the SYNC-RX terminal on Slave devices. Following diagrams shows two different sync wiring configurations, depending to the Power Supply connection.

DIAGRAM WITH SINGLE POWER SUPPLY
In case of single Power Supply that powers all the MICRO-1CV devices, use the following diagram.

DIAGRAM WITH ONE POWER SUPPLY FOR EACH DIMMER
In case of one Power Supply for each MICRO-1CV device use the following diagram, wiring together all the COM signals of Input terminal.

POWER SUPPLY WIRING
MICRO-1CV can be powered by a 12 Vdc, 24 Vdc or 48 Vdc constant voltage SELV power supply, depending on the operating voltage of the LED load. Once the load and Local Control are connected, connect the power supply to the “+” and “-” terminals of the DC IN terminal.

PUSH MENU
MICRO-1CV has one input for Local Control through which the following operating parameters can be managed (functionality available only with N.O. push-button):

1. Minimum value of Dimming
2. Power-ON ramp time (Fade-IN)
3. Power-OFF ramp time (Fade-OUT)
4. PWM Frequency

To access to the Push Menu, perform 15 quick presses in 5 seconds time range. When LED load flashes, the Menu N.1 is loaded. Each action on the push-button activates a specific function detailed in the tables below.

MENU #1: MINIMUM VALUE OF DIMMING
In this menu it is possible to configure the minimum dimming value.
Note: if you set the minimum level to 100%, once the setting is confirmed, the device automatically exits the Push Menu.

MENU #2: POWER-ON RAMP TIME (FADE-IN)
In Menu #2 you can configure the Power-ON ramp time (Fade-IN).

MENU #3: POWER-OFF RAMP TIME (FADE-OUT)
Here it is possible to configure the Power-OFF ramp time (Fade-OUT).

MENU #4: PWM FREQUENCY
In Menu #4 you can configure the PWM frequency.

LOCAL CONTROL AND DIMMING

During the normal use of MICRO-1CV, the light intensity and the status change (ON/OFF) of load connected can be controlled by the connected Local Control as listed in the following tables.

PUSH-BUTTON DIMMING
When N.O. push-button is connected to the INPUT terminal, the light intensity and the status (ON/OFF) can be set from the pushbutton by the following action.

0/1-10V & POTENTIOMETER DIMMING
When 0-10V, 1-10V signal or 10 kΩ potentiometer is connected to the INPUT terminal, the light intensity and the status (ON/OFF) can be set by the input voltage variation.

THERMAL CHARACTERIZATION

DIMMING CURVES

MECHANICAL DIMENSIONS

Figure 12 details the mechanical measurements and the overall dimensions [mm] of the outer casing.

TECHNICAL NOTES

INSTALLATION
ATTENTION! Installation and maintenance should always be carried out in the absence of DC voltage. Before proceeding with the installation, adjustment, and connection of the device to the power supply, make sure that the voltage is disconnected from the system.

MAINTENINCE
The device should only be connected and installed by qualified personnel. All applicable regulations, legislation, standards, and building codes in force in the respective countries must be adhered to. Incorrect installation of the device may cause irreparable damage to the device and connected loads. Maintenance must only be carried out by qualified personnel in compliance with current regulations. The product must be installed inside an electrical panel and/or junction box that is protected against overvoltage. The external power supply must be protected. The product must be protected by a properly sized circuit breaker with overcurrent protection. Keep 230 Vac (LV) circuits and non-SELV circuits separate from SELV safety ultra-low voltage circuits and any product connections. It is strictly forbidden to connect, for any reason, directly or indirectly, the 230 Vac mains voltage to the product (control terminals included). The product must be installed in a vertical or horizontal position, i.e. with the faceplate/label/top cover facing up or vertically. No other positions are allowed. The bottom position, i.e. with the faceplate/label/top cover facing downwards, is not allowed. During installation, it is recommended to reserve adequate space around the device to facilitate its accessibility in case of future maintenance or upgrades. Use in thermally harsh environments may limit the output power of the product. For devices embedded within luminaires, the TA ambient temperature range is a guideline to be carefully observed for the optimal operating environment. However, the integration of the device within the luminaire must always ensure proper thermal management (e.g. correct mounting of the device, proper ventilation, etc.) so that the temperature at the TC point does not exceed its maximum limit under any circumstances. Proper operation and durability are only guaranteed if the maximum temperature of the TC point is not exceeded under the conditions of use.

POWER & LOAD
The device must be powered only with SELV power supplies with limited current at constant voltage, short-circuit protection and suitably sized power according to the specifications indicated in the product data sheet. No other types of power supply are permitted. Size the power of the power supply respect to the load connected to the device. If the power supply is oversized compared to the maximum current drawn, insert an overcurrent protection between the power supply and the device. Connecting to an unsuitable power supply may cause the device to operate outside of the specified design limits, voiding its warranty. In the case of power supplies equipped with earth terminals, it is mandatory to connect ALL the protection earth points (PE= Protection Earth) to a state-of-the-art and certified earthing system. The power cables of the device must be correctly sized with reference to the connected load and must be isolated from any wiring or equal to non-SELV voltage. It is recommended not to exceed 10m of connection between the power source and the product. Use doubleinsulated cables. If you want to use connection cables between the power source and the product longer than 10m, the installer must ensure the correct operation of the system. In any case, the connection between the power supply and the product must not exceed 30m. The device has been designed to work with LED loads only. Connecting and powering unsuitable loads may cause the device to operate outside of the specified design limits, voiding its warranty. In general, the operating conditions of the device should never exceed the specifications indicated in the product data sheet. Observe the intended polarity between the LED module and the device. Any polarity reversal results in no light emission and can often damage the LED modules. It is recommended that the connection cables between the product and the LED module be less than 3m long. Cables must be properly sized and should be insulated from any non-SELV wiring or parts. It is recommended to use double-insulated cables. If you want to use connection cables between the product and the LED module longer than 3m, the installer must ensure the correct operation of the system. In any case, the connection between the product and the LED module must not exceed 30m. It is not allowed to connect different types of loads in the same output channel.

LOCAL & SYNC CONTROLS
The length of the connection cables between the local controls (N.O. Push-button, 0-10V, 1-10V, Potentiometer or other) and the product must be less than 10m. For longer lengths (and limited to the N.O. Push-button functionality) it is recommended the use of an N.O. Dry Contact Relay module, connected between the “Input” terminal of the device (dry contact side of the relay) and the power source (coil side of the relay) as shown in the connection example in Figure 4. The cables must be sized correctly. Depending on the connection used, they must be isolated from any wiring or non-SELV voltage parts. It is recommended to use double-insulated and twisted cables, if deemed appropriate, also shielded. All devices and control signals connected to local commands (N.O. buttons or other) must be of the SELV type (the connected devices must be SELV or in any case provide a SELV signal).The length and type of the connection cables at the bus SYNC must be less than 3m and they should be isolated from every wiring or parts at voltage not SELV. It is suggested to use double insulated shielded and twisted cables. All devices and control signals connected to the buses must be of the SELV type (the connected devices must be SELV or otherwise provide a SELV signal).

LEGAL NOTES

TERMS OF USE
Dalcnet (hereinafter referred to as “the Company”) reserves the right to make changes to this device, in whole or in part, without prior notice to the customer. Such changes may affect technical aspects, functionality, design, or any other element of the device. The company is not required to notify you of such changes and that your continued use of the device will constitute your acceptance of the changes. The company is committed to ensuring that any changes do not compromise the essential functionality of the device and that they comply with applicable laws and regulations. In the event of substantial changes, the company undertakes to provide clear and timely information on the same. The customer is advised to periodically consult the www.dalcnet.com website or other official sources to check for any updates or changes to the device.

SYMBOLS

DALCNET S.r.l.
36077 Altavilla Vicentina (VI) – Italy Via Lago di Garda, 22
Tel. +39 0444 1836680
Web : www.dalcnet.com
Mail : info@dalcnet.com

FAQs

Q: Can the MICRO-1CV be used with resistive LED loads?
A: Yes, the device offers constant voltage output suitable for resistive LED loads.

Q: How can I reset the device to factory settings?
A: To reset to factory settings, refer to the user manual or contact technical support for assistance.

Documents / Resources

DALCNET MICRO-1CV Single Channel LED Dimmer [pdf] User Manual MICRO-1CV Single Channel LED Dimmer, MICRO-1CV, Single Channel LED Dimmer, Channel LED Dimmer, LED Dimmer, Dimmer

References

• User Manual