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EU declaration conformity
9-step fan speed controller | DIN rail | 2,5 A
Product description
Motor Compatibility: Controls single-phase, voltage-controllable 230 VAC motors with a maximum current of 2.5 A.
Technology: Employs Triac technology for fan speed regulation.
Control Methods: Offers 9-step output voltage regulation, normal/inverse mode selection, and Modbus RTU (RS485) communication.
Adjustable Settings: Speed range can be adjusted via Modbus RTU using the 1-digit, 7-segment LED display and 3-button keyboard.
Mounting & Start Modes: Features a DIN rail-mounted enclosure and offers Kick start/Soft start options.
Monitoring: Easy monitoring is available via the 3SModbus application.
Additional specifications and description
How Does the DRE Controller Regulate Motor Speed and Allow for Adjustments?
DRE is a digital motor speed controller that regulates the speed of single-phase motors by reducing the motor voltage. It is intended for voltage controllable motors. If you are not sure whether your motor is voltage controllable, we advise on contacting the motor manufacturer.
DRE is a digital motor speed controller that regulates the speed of single-phase motors by reducing the motor voltage. It is intended for voltage controllable motors. If you are not sure whether your motor is voltage controllable, we advise on contacting the motor manufacturer.
The fan speed can be adjusted in 9 steps via the up and down arrows or via Modbus RTU communication. By pressing the up and down button simultaneously for 3 seconds, the motor can be activated or deactivated. The selected step is visualized via the 7-segment LED display. This is how the parameters can be monitored easily at all times without the need to go to the computer every now and then. Depending on the motor type, a humming motor noise may occur at low speed.
What Are the Manufacturing and Capacity Features of This Controller?
This fan speed controller is manufactured in Europe using the most reliable and modern electronic components. It can control several motors with a total maximum current equal to its rated current. On a continuous basis! There is no need to overdimension this controller, i.e. since the maximum rated current of the controller is 2,5 A, it can control a fan with a maximum current of 2,5 A.
How Does Modbus RTU Communication Enhance Controller Functionality?
This controller features Modbus RTU communication which has become standard in the industry. All settings of this fan speed controller can be adjusted and monitored via Modbus RTU communication.
Featuring Modbus RTU communication does not necessarily mean you cannot use the controller if it is not connected to a computer. Besides Modbus RTU, DRE features a 3-button interface with 7-segment display for manual settings. This means you can always use the device as a manual controller, however, in order to benefit from all the functionalities, we strongly advise you to opt for the software option. All you need to do is download our free 3SM Software from our website and you get the motor control type you wish – manual or digital, i.e. local or remote!
What Are the Available Motor Acceleration Modes?
The motor can be accelerated in softstart or in kickstart mode. In softstart mode, the motor will accelerate smoothly towards the set fan speed. In kickstart mode, the motor will immediately start running at full speed and slow down towards the set fan speed after a few seconds. Kickstart or softstart can be selected via the Modbus holding registers. The default value is kickstart.
What Is the Purpose and Application of the Unregulated Output?
The unregulated output (230 VAC) is active when the motor is enabled. Because this output is either ON (230 Volt) or OFF (0 Volt), it is called ‘unregulated output'. The maximum current of this output is 0,5 A. It is typically used to control an external run indicator, to open or close a damper, to switch an external relay, etc. In other words, when the fan stops, the damper will be closed. When the fan is active, the damper will be is open.
What Are the Installation Guidelines and Enclosure Features?
This fan speed controller can be installed on a DIN rail inside an electric cabinet. DIN rails are metal rails that conform to industry standards and are used to mount industrial processing equipment. DIN Rail electronics have been around for a long time and are becoming increasingly popular in industrial applications across a wide range of industries. The enclosure provides an IP30 protection against the ingress of dirt and dust.
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