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Fan speed controller with analogue input for DIN rail - 3 A
Fan speed controller with analogue input for DIN rail - 3 A
Fan speed controller with analogue input for DIN rail - 3 A
Fan speed controller with analogue input for DIN rail - 3 A

Fan speed controller with analogue input for DIN rail - 3 A


This is an electronic fan speed controller with analogue input. It has an enclosure for DIN rail mounting. It controls single-phase voltage controllable motors with a maximum current of 3 A. The AC fan speed is regulated by varying the motor voltage via phase angle control - Triac technology. A remote start - stop command can be generated via the digital input. The minimum and maximum speed are adjustable via internal trimmers. The motor voltage is regulated via the analogue input or via Modbus RTU. The analogue input type can be selected via jumpers: 0-10 VDC or 0-20 mA. Kick start or soft start acceleration and different operating modes are selectable via Modbus RTU. The unregulated output is active when the motor is enabled.


Article code MVS-1-30CDM
Category DIN rail mounted speed controller for single phase motors
Available
Current stock 4 U.
Next arrival 09/10/2020 - 45 U.
Factory lead time 4 Week(s)
Documents

- Invertible analog input signal: 0—10 / 10—0 VDC or 0—20 / 20—0 mA
- Minimum and maximum output voltage setting via trimmers or Modbus
- Off-level value setting via trimmer or Modbus
- Modbus RTU (RS485) communication
- Kick start or soft start
- Remote control input with selectable functionality (normal or timer)
- Analog input (normal or logic functionality - only for the timer start)
- 1 regulated output for the motor
- 1 unregulated output (230 VAC / max. 2 A) for 3-wire motor connection or voltage supply
- 1 low voltage supply output (12 VDC / 1 mA) for external 10 kΩ potentiometer
- DIN rail mounted
- Green LED operating indication

Click here to visit the Sentera Microsite for electronic fan speed controllers.


See this product in the following solutions:
Solution code
Title
Description
Differential pressure control 0 - 1.000 Pa - AC voltage controllable m
This solution controls AC fans with single-phase motor. The maximum motor current is 3 A. The fan speed is automatically controlled to maintain the differential pressure constant. The differential pressure setpoint can be adjusted via Modbus RTU. In case of clogged air filters or increasing demand for fresh air supply, the fan speed will increase to maintain the differential pressure constant. Minimum and maximum fan speed can be adjusted via trimmers. If necessary, a remote start-stop command can be generated via an external switch (not included).
Differential pressure control 0 - 2.000 Pa - AC voltage controllable m
This solution controls AC fans with single-phase motor. The maximum motor current is 3 A. The fan speed is automatically controlled to maintain the differential pressure constant. The differential pressure setpoint can be adjusted via Modbus RTU. In case of clogged air filters or increasing demand for fresh air supply, the fan speed will increase to maintain the differential pressure constant. Minimum and maximum fan speed can be adjusted via trimmers. If necessary, a remote start-stop command can be generated via an external switch (not included).
Differential pressure control: 0 - 1.000 Pa, AC voltage controllable m
How to maintain constant pressure, even in case of polluted air filters? How to guarantee a constant volume flow, even in case of variable demands? The requested differential pressure (Pa), volume flow (m³/hr) or air velocity (m/s) level can be adjusted via Modbus RTU. The AC fan will be controlled to maintain the requested value constant. The 24 VDC power supply increases the safety of your electrical installation thanks to overload and overvoltage protection. This control solution is designed for single phase voltage controllable motors with a maximum current of 3 A.
Differential pressure control: 0 - 2.000 Pa, AC voltage controllable m
How to maintain constant pressure, even in case of polluted air filters? How to guarantee a constant volume flow, even in case of variable demands? The requested differential pressure (Pa), volume flow (m³/hr) or air velocity (m/s) level can be adjusted via Modbus RTU. The AC fan will be controlled to maintain the requested value constant. The 24 VDC power supply increases the safety of your electrical installation thanks to overload and overvoltage protection. This control solution is designed for single phase voltage controllable motors with a maximum current of 3 A.
Differential pressure control: 0 - 1.000 Pa, AC voltage controllable m
How to maintain constant pressure, even in case of polluted air filters? How to guarantee a constant volume flow, even in case of variable demands? The requested differential pressure (Pa), volume flow (m³/hr) or air velocity (m/s) level can be adjusted via Modbus RTU. The AC fan will be controlled to maintain the requested value constant. The 24 VDC power supply increases the safety of your electrical installation thanks to overload and overvoltage protection. This control solution is designed for single phase voltage controllable motors with a maximum current of 3 A.
Differential pressure control: 0 - 2.000 Pa, AC voltage controllable m
How to maintain constant pressure, even in case of polluted air filters? How to guarantee a constant volume flow, even in case of variable demands? The requested differential pressure (Pa), volume flow (m³/hr) or air velocity (m/s) level can be adjusted via Modbus RTU. The AC fan will be controlled to maintain the requested value constant. The 24 VDC power supply increases the safety of your electrical installation thanks to overload and overvoltage protection. This control solution is designed for single phase voltage controllable motors with a maximum current of 3 A.
Remote fan speed control - AC voltage controlable motor
This solution controls AC fans with single-phase motor. The maximum motor current is 3 A. Typically, this solution is used to control AC fans or pumps in HVAC applications. The fan speed can be selected via the external potentiometer. At zero position, the motor stops. The maximum distance between potentiometer and fan speed controller should remain limited.
Remote fan speed control - AC voltage controlable motor
This solution controls AC fans with single-phase motor. The maximum motor current is 3 A. Typically, this solution is used to control AC fans or pumps in HVAC applications. The fan speed can be selected via the external potentiometer. At zero position, the motor is activated at minimum speed. The motor can be stopped via an external switch (not included). The supply voltage is 230 VAC. The maximum distance between potentiometer and fan speed controller should remain limited.
Remote fan speed control - AC voltage controllable motor
This solution controls AC fans with single-phase motor. The maximum motor current is 3 A. Typically, this solution is used to control AC fans or pumps in HVAC applications. The motor speed can be selected via the external potentiometer. At zero position, the motor stops. The LED on the potentiometer lights up when the motor is enabled. The fan speed controller can be mounted on a DIN rail. The maximum distance between potentiometer and fan speed controller depends on many factors but should be kept short.
Frequently asked questions:
Kick start and soft start are two different ways to start up a motor or fan. The best acceleration method depends on your application. Applications with high inertia might need a higher torque at start up to avoid stalling of the motor. Kick start — the motor will accelerate immediately from standstill towards maximum speed. The full motor torque is almost immediately available. After this start-up period (typically 8 – 10 s), the motor will decelerate towards the requested fan speed setpoint. This starting method is often used to avoid motor stalling at low speed. The disadvantage is the mechanical stress at start-up and a high motor start current. Soft start — the motor will smoothly accelerate from standstill towards the requested fan speed setpoint. This starting method gives you the advantage of reduced mechanical stress and lower motor starting currents. Due to the reduced motor torque during start up, this acceleration method is not ideal for high inertia applications.
No. A Sentera fan speed controller with a maximum current of 3 A is designed to control a 3 A motor. No need to overdimension a Sentera fan speed controller!
During operation, asynchronous motors heat up due to electric currents flowing through the motor windings. The air flow generated by the motor compensates this heating proces. If the motor speed is not high enough, the excessive heat might cause melting of the isolation of the motor windings and damage the motor. In some extreme cases, a low motor voltage might even cause stalling of the motor: electric currents are flowing through the motor windings while the motor is at standstill (stalled or blocked). To avoid this, the minimum motor speed should be set high enough to avoid excessive heating or stalling of the motor. The minimum required motor voltage depends on the type and brand of the motor.
The unregulated output provides a voltage of 230 VAC (Imax 2 A) as soon as the motor is enabled. The unregulated output can be used to power a 'motor run indicator light' or to power the start up capacitor in case of single phase motors with external start up capacitor.
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