Additional specifications and description
This is a 0-10 V potentiometer
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!
0-10 V potentiometer with Modbus RTU communication!
This is not just a simple potentiometer. This is a state-of-the-art digital potentiometer. It can work stand-alone or it can be integrated in a Modbus-RTU network.
E.g. The potentiometer can still control an EC fan via 0-10 V. 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.
SPV series offer fully digital control for AC fan speed controllers (RTVS1 series) via Modbus RTU. Both 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.
Adjustable minimum and maximum level
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.
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.
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.