EU declaration conformity
5-step fan speed controller | 0-10 V controlled | 13 A
Product description
This transformer controller features a 0-10 V analogue input. It controls single-phase motors. The maximum motor current (combined) is 13 A. The power supply voltage is 230 volts.
The speed is controlled in five stages by lowering the motor voltage using autotransformer technology. An analogue control signal (0-10 V) or an external potentiometer is used to choose these 5 levels. The precise sinusoidal output voltage ensures silent motor running.
In the event of overheating, the TK monitoring feature shuts the motor.
The plastic IP54 enclosure is surface mountable.
Documents
Additional specifications and description
About the series
The STVS1 transformer controller provides a comprehensive solution for regulating fan speed, protecting motors, and offering various control and monitoring capabilities. It is particularly useful in applications where precise control, durability and reliability are essential.
A transformer controller is a sophisticated device designed to intricately regulate the speed of fans by strategically reducing the motor voltage in incremental steps. This fine-tuned control mechanism is achieved through the utilization of advanced autotransformer technology, which boasts remarkable reliability and robustness in its operation. The technology generates motor voltage characterized by a smooth sinusoidal waveform. This exceptional attribute ensures not only a notably quiet operation of the motor but also serves to considerably extend the operational lifespan of the motor itself. An additional layer of sophistication is added through the implementation of a special impregnated coating, which effectively mitigates the generation of electrical noise typically associated with autotransformers.
Control via 0-10 V control signal
Facilitating precision in control, the transformer controller integrates a system that responds to a 0-10 V input signal. This signal manipulation holds significance in instances where specific fan speed levels are to be attained. Sentera's sensors can be used to generate this control signal. In cases where the availability of a 0-10 V signal is absent, the system accommodates an external potentiometer, e. g. the MTP-X10K-NA potentiometer can be seamlessly integrated into the 12 VDC supply of the STVS1 controller.
![fan speed controller with potentiometer and motor](/Images/lazy-loaded-images.webp)
Thermal motor protection
The series features thermal motor protection. This protective measure hinges upon the monitoring of thermal motor contacts (commonly abbreviated as TK). The TK function is pivotal in averting motor overheating, whereby, upon the detection of elevated motor temperatures, the monitoring function promptly incapacitates the motor. This prevents motor damage. In instances where the motor does not have TK contacts, the taps need to be bridged.
Extra digital output
The STVS1 speed controller also has an auxiliary digital output. This 12 VDC output is monitors the of thermal contacts, whose function is to safeguard the motor from serious overheating conditions. Leveraging this output, various applications can be realized. For instance, it can be connected to power a lamp whose illumination can serve as an indicator of the status of the system. The output can seamlessly integrate into an automated Building Management System (BMS), thus facilitating the propagation of sound and/or light-based alarms in response to the electric motor's overheating or a sudden fan stoppage.
Recovery with auto reset after power failure
The controller responds to power failures with an automatic self-reset mechanism. In such events, the system promptly initiates a reset process, ensuring that once power is reinstated, the motor seamlessly resumes its operation.
Non regulated 230 V output
The controller has an additional, unregulated output of 230 VAC, which activates during motor operation. This output serves as a versatile tool, aptly controllable to manage external indicators or devices, such as dampers. With the fan's deactivation, the damper closes, and the indicator ceases its illumination; however, when the fan is in motion, the dampers are propped open, and the indicator radiates a steady light.
More than 5 output voltages available
Beyond the standard voltage configurations, the STVS1 series offers more than five output voltage steps (110, 140, 170, 190, and 230 VAC), but there is also a 80 VAC output voltage tap, albeit unconnected. This presents an opportunity for tailored voltage configurations, effortlessly achieved through the manipulation of the system's internal wiring.
Special enclosure
The series features sheet steel enclosures resistant to external mechanical impacts. They can withstand bumps, collisions, or other physical forces without compromising their structure or the items inside. This feature is particularly important in environments where there is a higher risk of such impacts, ensuring the protection of the enclosed components. The enclosures have a paint finish, which not only provides an aesthetic appeal but also serves as an extra layer of protection against corrosion and other environmental factors. The paint finish helps to enhance the durability and longevity of the enclosure. The enclosure is EN 62208 certified and designed for surface mounting. It offers an IP54 protection rating, guarding against the ingress of dirt, dust, and moisture.
The STVS1 transformer controller provides a comprehensive solution for regulating fan speed, protecting motors, and offering various control and monitoring capabilities. It is particularly useful in applications where precise control, durability and reliability are essential.
A transformer controller is a sophisticated device designed to intricately regulate the speed of fans by strategically reducing the motor voltage in incremental steps. This fine-tuned control mechanism is achieved through the utilization of advanced autotransformer technology, which boasts remarkable reliability and robustness in its operation. The technology generates motor voltage characterized by a smooth sinusoidal waveform. This exceptional attribute ensures not only a notably quiet operation of the motor but also serves to considerably extend the operational lifespan of the motor itself. An additional layer of sophistication is added through the implementation of a special impregnated coating, which effectively mitigates the generation of electrical noise typically associated with autotransformers.
Control via 0-10 V control signal
Facilitating precision in control, the transformer controller integrates a system that responds to a 0-10 V input signal. This signal manipulation holds significance in instances where specific fan speed levels are to be attained. Sentera's sensors can be used to generate this control signal. In cases where the availability of a 0-10 V signal is absent, the system accommodates an external potentiometer, e. g. the MTP-X10K-NA potentiometer can be seamlessly integrated into the 12 VDC supply of the STVS1 controller.
![fan speed controller with potentiometer and motor](/en/files/article/image/description/stvs1130l22/sentera-stvs1-with-fan-and-external-potentiometer.jpg)
Thermal motor protection
The series features thermal motor protection. This protective measure hinges upon the monitoring of thermal motor contacts (commonly abbreviated as TK). The TK function is pivotal in averting motor overheating, whereby, upon the detection of elevated motor temperatures, the monitoring function promptly incapacitates the motor. This prevents motor damage. In instances where the motor does not have TK contacts, the taps need to be bridged.
Extra digital output
The STVS1 speed controller also has an auxiliary digital output. This 12 VDC output is monitors the of thermal contacts, whose function is to safeguard the motor from serious overheating conditions. Leveraging this output, various applications can be realized. For instance, it can be connected to power a lamp whose illumination can serve as an indicator of the status of the system. The output can seamlessly integrate into an automated Building Management System (BMS), thus facilitating the propagation of sound and/or light-based alarms in response to the electric motor's overheating or a sudden fan stoppage.
Recovery with auto reset after power failure
The controller responds to power failures with an automatic self-reset mechanism. In such events, the system promptly initiates a reset process, ensuring that once power is reinstated, the motor seamlessly resumes its operation.
Non regulated 230 V output
The controller has an additional, unregulated output of 230 VAC, which activates during motor operation. This output serves as a versatile tool, aptly controllable to manage external indicators or devices, such as dampers. With the fan's deactivation, the damper closes, and the indicator ceases its illumination; however, when the fan is in motion, the dampers are propped open, and the indicator radiates a steady light.
More than 5 output voltages available
Beyond the standard voltage configurations, the STVS1 series offers more than five output voltage steps (110, 140, 170, 190, and 230 VAC), but there is also a 80 VAC output voltage tap, albeit unconnected. This presents an opportunity for tailored voltage configurations, effortlessly achieved through the manipulation of the system's internal wiring.
Special enclosure
The series features sheet steel enclosures resistant to external mechanical impacts. They can withstand bumps, collisions, or other physical forces without compromising their structure or the items inside. This feature is particularly important in environments where there is a higher risk of such impacts, ensuring the protection of the enclosed components. The enclosures have a paint finish, which not only provides an aesthetic appeal but also serves as an extra layer of protection against corrosion and other environmental factors. The paint finish helps to enhance the durability and longevity of the enclosure. The enclosure is EN 62208 certified and designed for surface mounting. It offers an IP54 protection rating, guarding against the ingress of dirt, dust, and moisture.
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