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  • New item   -48.81€Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK
    New item   -48.81€Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK 1
    New item   -48.81€Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK 2
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    Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK

    Code: RDCV9-AD-BK
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  • Product description

    Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK

    RDCV9-AD-BK – Sentera Controls digital EC fan speed controller (anthracite enclosure) with a 3-digit LED display, 3-button keypad and Modbus RTU. Supplied with 110–230 VAC, output – 0-10 VDC, 0-20 mA or PWM, stepless or 2–10 steps.

    Key idea:
    Buttons and a display instead of a knob: the user sees the exact set value or step, and the installer sets the signal type, limits, number of steps and start value in the menu without any trimmers.
    Power supply
    110–230 VAC ±10 %
    Output
    0-10 VDC / 0-20 mA / PWM
    Control
    LED display, 3 buttons, Modbus RTU
    Mode
    Stepless or 2–10 steps

    Operating principle

    The controller is connected to 110–230 VAC (L, N), the input of the controlled device (Ao, GND) and, if needed, the Modbus RTU line (A, /B). Flush-mounted or surface-mounted installation.

    This is not a power controller: it generates a control signal for an EC fan, actuator, lighting or another system, and no motor current flows through it.

    Output: 0-10 VDC (min. 0–8 VDC, max. 4–10 VDC, RL ≥ 10 kΩ), 0-20 mA (min. 0–16 mA, max. 8–20 mA, RL ≤ 500 Ω) or 0–100 % PWM (min. 0–80 %, max. 20–100 %, RL ≥ 10 kΩ; open collector, internal 12 VDC). A stepless or 2–10-step control curve is available, and a start-up value or step can be set.

    Engineer's note: step mode is convenient for the user (e.g. 3 clear ventilation steps), and the start-up value ensures that the EC fan reliably starts turning.

    Benefits RDCV9-AD-BK?
    Display, step mode and Modbus RTU in one residential-design enclosure – suitable where the user wants to see the exact value and the integrator needs a BMS connection.

    Technical specifications

    Product type Digital EC fan speed controller
    Manufacturer / code Sentera Controls / RDCV9-AD-BK
    Series RDCV9-AD (WH – white, BK – anthracite)
    Enclosure colour Anthracite colour
    Supply voltage 110–230 VAC ±10 %, 50–60 Hz
    0-10 VDC output Min. 0–8 VDC, max. 4–10 VDC, RL ≥ 10 kΩ
    0-20 mA output Min. 0–16 mA, max. 8–20 mA, RL ≤ 500 Ω
    PWM output 0–100 %, min. 0–80 %, max. 20–100 %, RL ≥ 10 kΩ; open collector, internal 12 VDC
    Control mode Stepless or 2–10 steps; start value / step is adjustable
    Display and control 3-digit 7-segment LED display, 3 buttons
    Communication Modbus RTU (RS485), 3SModbus software
    Cables Up to 2.5 mm²
    Installation Flush-mounted or surface-mounted
    Protection class IP44 / IP54 (EN 60529)
    Operating environment -10…+40 °C, 5–80 % rH non-condensing, indoor use only
    Weight 0.17 kg (net)
    Compliance LVD 2014/35/EU, EMC 2014/30/EU, WEEE 2012/19/EU, RoHS (EU) 2015/863

    Manufacturer documentation

    ✔ Recommended by Elektrotechnikos sprendimai

    Original manufacturer documentation – technical data, wiring diagrams and installation instructions.

    Main functions

    • LED display and keypad – the output value or step is displayed; settings are in the menu.
    • Three output types – 0-10 VDC, 0-20 mA or PWM.
    • Stepless or stepped mode – 2–10 steps for user convenience.
    • Start-up value – reliable EC fan start-up.
    • Modbus RTU – integration into the BMS, configuration with the 3SModbus software.

    Where is it used?

    • Apartments and houses with heat recovery units
    • Hotel rooms, offices
    • EC fans, damper actuators
    • Lighting or other systems with 0-10 V / PWM control
    • Buildings with BMS

    On-demand operation

    For the user.
    The display shows the exact value or step.
    For the installer.
    All settings via buttons, without trimmers or a screwdriver.
    For the BMS integrator.
    Modbus RTU monitoring and configuration.

    Application guide: how it is used in practice

    RDCV9-AD-BK can be adapted to different sites – only what is connected and which mode is selected change:

    Site What is connected Result Installer's note
    Apartment with a heat recovery unit Ao (0-10 VDC) → heat recovery unit EC fans 3 clear ventilation steps on the display Set the number of steps in the menu
    Office with BMS A, /B → Modbus RTU; Ao → EC fan Local control and centralised monitoring When connecting to a Modbus network with AC supply, do not connect GND
    EC fan with a PWM input Ao (PWM, open collector) → PWM input Smooth speed control Load ≥ 10 kΩ
    Damper actuator Ao (0-20 mA or 0-10 VDC) → actuator Precise position shown on the display In current mode, load ≤ 500 Ω
    Lighting with 0-10 V control Ao (0-10 VDC) → power supply dimmer input Light level control Sentera also lists lighting as an application

    How to select the controller current

    Rated current of the motor(s) Recommended model
    White enclosure needed RDCV9-AD-WH (white)
    Anthracite enclosure needed RDCV9-AD-BK (anthracite) ← this model
    A simple potentiometer with Modbus, without a display, is sufficient SPV-8-010-PM (OFF, Modbus RTU)
    Rule: RDCV9-AD-WH and RDCV9-AD-BK are technically identical – only the enclosure colour differs. Choose according to the interior. Motor power has no influence on the selection – the control input load is what is checked.
    When to choose another solution: for simpler knob control with Modbus – SPV-8 series; without Modbus with 230 VAC – MTVN1 series; for temperature-based control of an air heater with an EC fan – ECH-8-DM; for AC fans – EVS-1 controllers.

    Pros

    • LED display and 3 buttons
    • Stepless or 2–10 step mode
    • Three output types
    • Modbus RTU
    • Power supply 110–230 VAC

    Cons / limitations

    • Indoor use only, -10…+40 °C
    • No dry contact or relay output
    • Settings via the menu – instructions are needed

    Safety and installation notes

    • Installation and connection must be carried out by a qualified electrician with the supply to all connected devices disconnected.
    • The terminals carry mains voltage – connect only with the supply disconnected.
    • If the AC supply is shared with other Modbus devices, do not connect the GND terminal to other network devices or to the CNVT-USB-RS485 converter – this may damage the communication electronics or the computer.
    • Cables – up to 2.5 mm².
    • For indoor use only.

    Quick selection guide

    110–230 VAC
    0-10 V / 0-20 mA / PWM
    LED display
    Modbus RTU
    IP44 / IP54
    Suitable when you need:
    • control an EC fan with a display and steps;
    • integrate control into the BMS via Modbus RTU;
    • control actuators or lighting with a 0-10 V / PWM signal.
    Check before use:
    • the type and resistance of the controlled input;
    • whether stepped or stepless mode is needed;
    • the enclosure colour (WH / BK).
    Important reminder: RDCV9-AD-BK is a control signal source, not a power controller – the motor current does not flow through it.

    FAQ

    What is the difference between WH and BK?
    Only the enclosure colour: WH – white, BK – anthracite.
    Is step control possible?
    Yes, 2–10 step or stepless mode.
    Does it have Modbus?
    Yes, Modbus RTU (RS485), configuration with 3SModbus software.
    What is the supply?
    110–230 VAC ±10 %, 50–60 Hz.

    Digital EC fan speed controller | Sentera Controls | RDCV9-AD-BK

    Sentera RDCV9-AD-BK – digital EC fan speed controller (anthracite): LED display, 0-10 VDC / 0-20 mA / PWM, stepless or 2–10 step mode, Modbus RTU, 110–230 VAC, IP44 / IP54.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
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