Frequentieomvormer 3fase 230 V | 7 A | 1,5 kW | IP66
Beschrijving
Frequency inverter for three-phase 230 V motors on a single-phase 230 Volt mains. The maximum motor current is 7 A. The motor speed can be set via the intuitive keypad or via the inputs. Only a few basic parameters need to be set, and yet this device offers many possibilities. This frequency inverter can control both fans and pumps in HVAC applications. It offers IP66 protection against the ingress of dust and moisture.
This frequency inverter can control three-phase 230 V IE3, IE4, permanent magnet, brushless DC or synchronous reluctance motors. The motor speed can be controlled manually via the intuitive keypad or by a control signal on the inputs. For example, you could allow a 0-10 volt signal from a sensor or a potentiometer to arrive. The integrated EMC filter is of class C1.
Manufacturer code: ODE-3-220070-1F4A
A variable speed controller only controls the motor voltage. A frequency converter controls the motor frequency in addition to the motor voltage. On the one hand, there is the advantage of optimum motor control and more energy-efficient operation . On the other hand, there are the higher costs and the need to set some necessary parameters before commissioning. The fact that the motor voltage and motor frequency can be controlled provides additional control options and therefore additional parameters. In order to make the device as user-friendly as possible, application macro functions have been created. The most important settings are grouped into the 14 basic parameters; these can be found on the help card on the housing.IP66 Enclosure for Outdoor Surface Mounting
The wall-mounted enclosure is designed to protect electronics in harsh environments and outdoor applications. The enclosure offers IP66 protection against ingress of water, dirt and contaminants. This allows this frequency converter to be installed directly on the system, even in washable applications. No electrical cabinet is required. It is advisable to protect the device from snow and direct sunlight.Easy to use
By selecting one of these application macros, the most important settings are automatically pre-configured. This saves you the trouble of defining the functionality for the different inputs. These functionalities are pre-defined in the application macros. They provide the ideal energy-saving solution when high starting torque is not required. Typical applications are AC fans, blowers, centrifugal pumps, smoke extractors and airflow controllers.
By default, input 1 is used to start the motor. An optional 10K potentiometer can be connected to terminals 5, 6 and 7 to adjust the fan speed.
If input 3 is activated, the motor runs at the pre-defined speed in parameter 20. If input 3 is not activated (or not connected), the motor speed can be adjusted via the external potentiometer (or analogue control signal).Pulse width modulation
Frequency controllers control the motor voltage and motor frequency using a technology called pulse width modulation . This technology converts the supplied alternating current into direct current. A frequency controller has a DC bus, which can be seen as a buffer tank for the available energy. This buffer tank is filled by both the supply voltage (via the rectifier) and the regenerative energy of the motor that flows back during braking. This direct current is converted back into a type of alternating current by IGBTs. IGBTs or Insulated Gate Bipolar Transistors are bipolar transistors with an insulated gate terminal that can switch high electrical currents at high speed. Thanks to the intelligent control of the IGBTs, both the motor voltage and the motor frequency can be controlled. This enables optimum motor control and energy-efficient operation.
This frequency controller requires a single-phase 230V power supply. It controls standard 3-phase 230V IE2, IE3 and IE4 induction motors . In addition, it can also control permanent magnet motors, brushless DC motors and synchronous reluctance motors.Standard built-in EMC filter class C1
A disadvantage of high-frequency switching IGBTs is the fact that they pollute the electricity grid with higher harmonic interference signals (EMC pollution). In order to minimize this network pollution, an EMC filter class C1 is built in as standard. This frequency converter is also equipped with an integrated brake chopper. This makes it possible to connect a brake resistor to shorten the delay time if necessary. Sentera HVAC sensors can be connected via the analog input or via Modbus RTU communication.