.webp "Potentiometer")
.webp "Potentiometer EC fan")
.webp "HVAC potentiometer")
.webp "0-10 V potentiometer")
.webp "0-10 Volts potentiometer")
.webp "EC fan controller")
EU declaration conformity
Potentiometer EC fan | dry contact output | Modbus RTU communication
Product description
The SPV-8-010-CP is a potentiometer for ventilation systems with Modbus RTU communication for seamless integration. It's designed to work with a wide range of devices, including EC fans and damper actuators.
Universal Power Supply: Operates on a supply voltage of 85-264 VAC, 50-60 Hz, making it suitable for global use.
Variable & Remote Control: The rotary knob provides manual control. All parameters, including min/max settings, inverse operation, and output type (0-10 V, 0-20 mA, 0-100% PWM), can be adjusted remotely via Modbus.
Dry Contact: An integrated dry contact allows for remote on/off control of external equipment.
Remote Connectivity: It can be integrated into a Building Management System (BMS) or accessed via the SenteraWeb cloud for remote management.
Durable Design: The splash-proof enclosure supports both inset mounting (IP44) and surface mounting (IP54).
Additional specifications and description
What does this potentiometer control?
SPV series can be used as a simple potentiometer. Via the rotary knob, an output value can be set. This output value can control EC fans or damper actuators. It can also remotely control AC fan speed controllers (EVS or MVS series) or frequency inverters (FI-E series). The default output is 0-10 V. This can be adjusted if necessary. The output type of this potentiometer can be selected via Modbus RTU: 0—10 V, 0—20 mA or 0—100 % PWM. This potentiometer works directly on 230 VAC mains voltage. No separate power supply is required!
What are the limits of the control signal?
This is not just a simple potentiometer. This is a state-of-the-art digital potentiometer. It can work as a stand-alone device or it can be integrated into a Modbus RTU network. This offers the possibility to set the 0 - 10 Volt signal manually via the potentiometer or to overrule the manual control via Modbus RTU communication. Via Modbus RTU communication, the potentiometer output value can be overwritten. The potentiometer position, the output value and all other parameters can be read via Modbus RTU communication. The complete parameter list is available in the Modbus register map on the product page.
Even though the potentiometer can still control an EC fan via 0 - 10 V control signal, at the same time the building management system can read out the set value of the potentiometer. The building management can even take control of the potentiometer 0 - 10 V output if necessary.
Even though the potentiometer can still control an EC fan via 0 - 10 V control signal, at the same time the building management system can read out the set value of the potentiometer. The building management can even take control of the potentiometer 0 - 10 V output if necessary.
What’s new in the SPV potentiometer series?
SPV-8-010-CP is the successor of the good old MTV-1-010-CP series and has almost the same functionality, but better. The old technology using jumpers is replaced by Modbus RTU communication, the control algorithm is enhanced, the wiring is done using a push-in CAGE CLAMP® connection and last but not least the looks are improved in order to suit modern interiors. You can still use the SPV as a manual potentiometer, but to make use of the whole set of its features, we advise on using Modbus RTU communication.
SPV-8-010-CP is the successor of the good old MTV-1-010-CP series and has almost the same functionality, but better. The old technology using jumpers is replaced by Modbus RTU communication, the control algorithm is enhanced, the wiring is done using a push-in CAGE CLAMP® connection and last but not least the looks are improved in order to suit modern interiors. You can still use the SPV as a manual potentiometer, but to make use of the whole set of its features, we advise on using Modbus RTU communication.
SPV series offer fully digital control for AC fan speed controllers (RTVS1 series) via Modbus RTU. The two devices are connected digitally. This reduces the risk of disturbances and offers the possibility to increase the cable length between potentiometer and fan speed controller.
How can the output range be adjusted?
Some EC motors or valve drives cannot handle control signals that are too small. Sometimes a fan is over dimensioned or too powerful. No worries, the upper and lower limits of this potentiometer's output can be adjusted via Modbus RTU. E.g. by default, the output signal is 0 - 10 V. This can be adjusted to 4 - 9 V or another customized range.
Can the output be inverted?
By default, this potentiometers output goes from low to high. It is possible to inverse the output of this potentiometer so that it goes from high to low. E.g. by default, the output signal is 0-10 V. This can be adjusted towards 10-0 V.
What is the function of the dry contact output?
This potentiometer has a dry contact output. This dry contact output can be used to control an external device (e.g. damper) or to enable or disable a motor. When the potentiometer knob is turned completely counter clockwise, the dry contact is open. When turning the potentiometer knob clockwise, the contact closes.
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