.webp "10 Volt potentiometer")
.webp "Potentiometer PWM")
.webp "EC fan potentiometer")
.webp "Potentiometer 0-20 mA")
.webp "HVAC potentiometer")
.webp "EC fan controller")
EU declaration conformity
Potentiometer | Modbus RTU | 24 VDC supply
Product description
The SDP-M010-BT is a potentiometer for precise ventilation system control. It has Modbus RTU integration, allowing it to be connected to a Building Management System (BMS) or the SenteraWeb cloud.
Here are its key features:
Versatile Control: Controls a range of devices like EC fans and frequency inverters.
Manual & Remote Control: A rotary knob provides continuous manual control. Parameters like min/max levels and inverse control can be adjusted remotely via Modbus.
No OFF-Position: It lacks an OFF-position to prevent accidental shutdowns.
Durable Design: The splash-proof enclosure supports both inset mounting (IP44) and surface mounting (IP54).
Additional specifications and description
What are the typical applications of this potentiometer?
The analogue output of the potentiometer is typically used as a control signal. In general, a potentiometer is used to remotely adjust EC fan speed or to send the requested motor speed to a frequency inverter or AC fan speed controller. For instance, the potentiometer can be installed in the sitting room while the fan speed controller is located in a technical room or electrical cabinet.
What additional features does it have?
This potentiometer features Modbus RTU communication, which is a standard communication protocol for communication between electronic devices. It is easy to deploy and maintain and therefore is often used to connect a plant/system supervisory computer with a remote terminal unit (RTU).
Sentera has developed its free downloadable 3SM Software whose intuitive interface facilitates the process of configuration, monitoring or updating of products featuring Modbus RTU.
What output types are available?
The SDP series offers different output types: 0-10 Volts, 0-20 mA and 0-100 % PWM. The output type can be adjusted via Modbus Holding register 11.
Also, the minimum and maximum output values can be adjusted via the relevant Modbus holding registers.
When the output overwrite function is enabled, the output value can be set via Modbus RTU communication. This makes it possible to overrule the rotary knob and to remotely control the analogue output value of the potentiometer via Modbus RTU communication.
By default, the analogue output goes from low to high (i.e. 0 to 10 Volt). It is possible to reverse the operation. In this case, the output value goes from high to low (i.e. 10 to 0 Volt). The output regulation type can be selected via Modbus Holding register 17.
What does the OFF position do?
This potentiometer does not feature an OFF position. When the rotary knob is set to minimum position, the analogue output value equals the minimum value. This minimum value can be adjusted via Modbus Holding register 15. This feature can be very useful in applications requiring constant airflow.
What makes installation of the SDP series easy?
The SDP series offers an exceptional simplicity of installation, featuring a modular screwless terminal block with a 5 mm pitch. This not only reduces installation times but also enhances user experience by eliminating the need for twisting and turning screws. The screwless clamping technology ensures a secure connection without the need for constant checks or retightening of loosened wires due to disturbances, temperature cycling or strand breaks.
What makes the enclosure reliable?
The SDP series of potentiometers is fit for both surface and flush mounting, meaning you can install it on or in any kind of wall – a solid wall, drywall or even a wood panel. The mounting holes fit perfectly the standard European wall boxes used for flush mounting. The protection class is IP44 for flush and IP54 for surface mounting. Furthermore, it looks really nice and is a good match for any interior style. Cleaning it is very easy using only a damp cloth.
So, there is no need to opt for two different versions as the SDP series combines both of them! All you need is a couple of tools and a little bit of general knowledge and handiness.
The analogue output of the potentiometer is typically used as a control signal. In general, a potentiometer is used to remotely adjust EC fan speed or to send the requested motor speed to a frequency inverter or AC fan speed controller. For instance, the potentiometer can be installed in the sitting room while the fan speed controller is located in a technical room or electrical cabinet.
What additional features does it have?
This potentiometer features Modbus RTU communication, which is a standard communication protocol for communication between electronic devices. It is easy to deploy and maintain and therefore is often used to connect a plant/system supervisory computer with a remote terminal unit (RTU).
Sentera has developed its free downloadable 3SM Software whose intuitive interface facilitates the process of configuration, monitoring or updating of products featuring Modbus RTU.
What output types are available?
The SDP series offers different output types: 0-10 Volts, 0-20 mA and 0-100 % PWM. The output type can be adjusted via Modbus Holding register 11.
Also, the minimum and maximum output values can be adjusted via the relevant Modbus holding registers.
When the output overwrite function is enabled, the output value can be set via Modbus RTU communication. This makes it possible to overrule the rotary knob and to remotely control the analogue output value of the potentiometer via Modbus RTU communication.
By default, the analogue output goes from low to high (i.e. 0 to 10 Volt). It is possible to reverse the operation. In this case, the output value goes from high to low (i.e. 10 to 0 Volt). The output regulation type can be selected via Modbus Holding register 17.
What does the OFF position do?
This potentiometer does not feature an OFF position. When the rotary knob is set to minimum position, the analogue output value equals the minimum value. This minimum value can be adjusted via Modbus Holding register 15. This feature can be very useful in applications requiring constant airflow.
What makes installation of the SDP series easy?
The SDP series offers an exceptional simplicity of installation, featuring a modular screwless terminal block with a 5 mm pitch. This not only reduces installation times but also enhances user experience by eliminating the need for twisting and turning screws. The screwless clamping technology ensures a secure connection without the need for constant checks or retightening of loosened wires due to disturbances, temperature cycling or strand breaks.
What makes the enclosure reliable?
The SDP series of potentiometers is fit for both surface and flush mounting, meaning you can install it on or in any kind of wall – a solid wall, drywall or even a wood panel. The mounting holes fit perfectly the standard European wall boxes used for flush mounting. The protection class is IP44 for flush and IP54 for surface mounting. Furthermore, it looks really nice and is a good match for any interior style. Cleaning it is very easy using only a damp cloth.
So, there is no need to opt for two different versions as the SDP series combines both of them! All you need is a couple of tools and a little bit of general knowledge and handiness.
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