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  • New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP
    New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP 1
    New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP 2
    New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP 3
    New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP 4
    New item   -45.56€Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP 5

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP

    Code: SPV-8-010-CP
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  • Product description

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP

    SPV-8-010-CP – Sentera Controls 230 VAC potentiometer with Modbus RTU and dry contact, designed for stepless control of EC motors with a 0-10 VDC, 0-20 mA or 0–100 % PWM signal. Supplied with 85–264 VAC, while Vmin, Vmax, direction and output type are set via Modbus RTU.

    Key idea:
    The potentiometer is supplied directly from the mains and is also a Modbus RTU device – the BMS sees and changes its settings, while the user in the room has a familiar knob. In the leftmost knob position a dry contact (up to 4 A) is switched for external equipment.
    Power supply
    85–264 VAC, 50–60 Hz
    AO1 output
    0-10 VDC / 0-20 mA / PWM 1 kHz
    Communication
    Modbus RTU (RS485)
    OFF / contact
    Dry contact 4 A

    Operating principle

    The potentiometer is connected to the 85–264 VAC mains (L, N), the Modbus RTU line (A, /B) and the input of the controlled device (AO1, GND), the dry contact – into the external device circuit.

    This is not a power controller – it only generates a control signal, and the speed is changed by the electronics of the EC motors themselves.

    AO1 modes: 0-10 VDC (RL ≥ 50 kΩ), 0-20 mA (RL ≤ 500 Ω), PWM 1 kHz (RL ≥ 50 kΩ). Vmin is set to 0–4 VDC / 0–8 mA / 0–40 % PWM, Vmax – 6–10 VDC / 12–20 mA / 60–100 % PWM via Modbus RTU; the control direction is also selected there.

    Engineer's note: the bootloader mode allows the firmware to be updated via Modbus RTU, so the device can be updated already installed on site.

    Benefits SPV-8-010-CP?
    Mains supply, Modbus RTU and manual control in one flush-mounted enclosure – no 24 V power supply unit or separate Modbus module needed.

    Technical specifications

    Product type 230 VAC potentiometer with Modbus RTU for an EC fan
    Manufacturer / code Sentera Controls / SPV-8-010-CP
    Series SPV-8 (PM – with OFF, CP – with dry contact, MF – for several EC fans)
    Supply voltage 85–264 VAC, 50–60 Hz
    AO1 output – voltage 0-10 VDC, RL ≥ 50 kΩ
    AO1 output – current 0-20 mA, RL ≤ 500 Ω
    AO1 output – PWM 1 kHz, RL ≥ 50 kΩ
    Vmin 0–4 VDC / 0–8 mA / 0–40 % PWM (via Modbus RTU)
    Vmax 6–10 VDC / 12–20 mA / 60–100 % PWM (via Modbus RTU)
    Control direction Min.→max. or max.→min. (via Modbus RTU)
    Dry contact (CS) Max. 4 A, switched in the leftmost knob position
    Communication Modbus RTU (RS485), bootloader for updates
    Terminals Push-in, 1.5 mm², pitch 3.5 mm
    Installation Flush-mounted (IP44) or surface-mounted (IP54)
    Protection class IP44 / IP54 (EN 60529)
    Operating environment 0–40 °C, 5–95 % rH non-condensing
    Weight 0.16 kg (net)
    Compliance LVD 2014/35/EU, EMC 2014/30/EU, RoHS 2011/65/EU

    Manufacturer documentation

    ✔ Recommended by Elektrotechnikos sprendimai

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

    Main functions

    • Supply from the mains 85–264 VAC – no 24 V power supply unit needed.
    • Modbus RTU – Vmin, Vmax and direction are set remotely; the device is visible in the BMS.
    • Three output types – 0-10 VDC, 0-20 mA or PWM 1 kHz.
    • Dry contact up to 4 A – switches external equipment in the left position.
    • Bootloader – firmware updates via Modbus RTU.
    • Universal enclosure – flush-mounted IP44 or surface-mounted IP54, push-in terminals.

    Where is it used?

    • Offices, halls, hotels with BMS
    • EC duct and roof fans
    • Rooms without 24 V automation
    • AC fans with EVS / MVS controllers
    • Damper actuators

    On-demand operation

    For the automation / BMS integrator.
    Settings via Modbus RTU, firmware update possible.
    For the electrician.
    Supply from the existing 230 VAC line.
    For the user.
    A conventional knob in the room.

    Application guide: how it is used in practice

    SPV-8-010-CP can be adapted to different sites – only what is connected changes:

    Site What is connected Result Installer's note
    Office or hall with BMS Modbus RTU → A, /B; AO1 → EC fan Manual control, the BMS sees the setting A unique Modbus address for each device
    Room without 24 V automation L, N ← 230 VAC; AO1 → EC fan Control without a power supply unit Route signal and mains cables separately
    AC fan with an electronic controller AO1 (0-10 VDC) → Sentera EVS / MVS controller input Manual AC fan control Signal GND – to the controller GND
    Damper with a 0-20 mA actuator AO1 (0-20 mA) → actuator Manual damper control In current mode, load ≤ 500 Ω
    Fan with a damper or heater Dry contact → external device circuit Auxiliary equipment is switched on together Contact load ≤ 4 A

    How to select the controller current

    Rated current of the motor(s) Recommended model
    OFF and Modbus RTU needed, one EC fan SPV-8-010-PM (OFF, Modbus RTU)
    Dry contact (4 A) and Modbus RTU needed SPV-8-010-CP (dry contact 4 A, Modbus RTU) ← this model
    Control of several EC fans with one signal needed SPV-8-010-MF (0-10 VDC, RL ≥ 1 kΩ, dry contact 4 A)
    EBM-Papst FFU control via Modbus / DCI needed (up to 20 pcs) SPVL8-010-EP (Modbus / DCI, up to 20 fans)
    Rule: choose according to your needs: one EC fan and OFF – PM; external equipment needs to be controlled – CP (contact 4 A); a group of several fans with one signal – MF (total input resistance ≥ 1 kΩ); EBM-Papst FFU with DCI – SPVL8-010-EP. Motor power has no influence on the selection.
    When to choose another solution: without Modbus with 230 VAC supply – MTVN1 series; with a display and steps – RDCV9-AD; 24 VDC with Modbus – SDP-M010 series; EBM-Papst FFU – SPVL8-010-EP; for an air heater with an EC fan – ECH-8-DM.

    Pros

    • Dry contact up to 4 A
    • Three output types
    • Supply 85–264 VAC
    • Modbus RTU
    • Vmin / Vmax and direction via Modbus
    • IP44 / IP54

    Cons / limitations

    • Operating temperature only 0–40 °C
    • Limits can be changed only via Modbus RTU (a converter and software are required)
    • The terminals carry mains voltage: installation by a qualified electrician only

    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.
    • Observe the output load limits: voltage / PWM ≥ 50 kΩ, current ≤ 500 Ω.
    • Dry contact load – no more than 4 A.
    • Connect the Modbus line with twisted-pair cable, in a line topology.

    Quick selection guide

    85–264 VAC
    Modbus RTU
    0-10 V / 0-20 mA / PWM
    dry contact 4 A
    IP44 / IP54
    Suitable when you need:
    • control an EC fan from 230 VAC without a power supply unit;
    • integrate manual control into the BMS via Modbus RTU;
    • switch on external equipment at the same time (up to 4 A).
    Check before use:
    • the type and resistance of the controlled input;
    • the Modbus address plan and RS485 topology;
    • whether OFF, a dry contact or control of several fans is needed.
    Important reminder: SPV-8-010-CP is a control signal source, not a power controller – the motor current does not flow through it.

    FAQ

    Is a 24 V supply required?
    No, it is supplied with 85–264 VAC, 50–60 Hz.
    How do I change Vmin / Vmax?
    Via Modbus RTU, e.g. with a CNVT-USB-RS485 converter and the Sentera 3SModbus software.
    How many fans can be connected?
    As many as stay within the load limits; for a group of several fans choose SPV-8-010-MF.
    Can it be used without Modbus?
    Yes, as a manual potentiometer with factory settings.

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | SPV-8-010-CP

    Sentera SPV-8-010-CP – 230 VAC potentiometer with dry contact and Modbus RTU: 85–264 VAC, 0-10 VDC / 0-20 mA / PWM output, dry contact 4 A, Vmin / Vmax via Modbus, 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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